10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________________________

FORM 10-K

(Mark One)

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2013

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to             

Commission File Number: 001-35397

______________________________________

RENEWABLE ENERGY GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware	26-4785427
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
416 South Bell Avenue, Ames, Iowa	50010
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (515) 239-8000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class:	Name of each exchange on which registered:
Common Stock, par value $.0001 per share	NASDAQ Global Market

Securities registered pursuant to Section 12(g) of the Act:

None

(Title of class)

______________________________________

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  x

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy

or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	¨	Accelerated filer	x
Non-accelerated filer	¨  (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).    Yes  ¨    No  x

As of June 30, 2013, the aggregate market value of Common Stock held by non-affiliates was $358,842,000.

As of February 25, 2014, 38,787,018 shares of Common Stock of the registrant were issued and outstanding.

______________________________________

Documents Incorporated By Reference

All or a portion of Items 10 through 14 in Part III of this Form 10-K are incorporated by reference to the Registrant’s definitive proxy statement on Schedule 14A, which will be filed within 120 days after the close of the fiscal year covered by this report on Form 10-K, or if the Registrant’s Schedule 14A is not filed within such period, will be included in an amendment to this Report on Form 10-K which will be filed within such 120 day period.

TABLE OF CONTENTS

		Page
PART I
ITEM 1.	Business	1
ITEM 1A.	Risk Factors	10
ITEM 1B.	Unresolved Staff Comments	25
ITEM 2.	Properties	25
ITEM 3.	Legal Proceedings	26
ITEM 4.	Mine Safety Disclosures	26
PART II
ITEM 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	27
ITEM 6.	Selected Financial Data	30
ITEM 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
ITEM 7A.	Quantitative and Qualitative Disclosures about Market Risk	54
ITEM 8.	Financial Statements and Supplementary Data	57
ITEM 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	94
ITEM 9A.	Controls and Procedures	94
ITEM 9B.	Other Information	94
PART III
ITEM 10.	Directors, Executive Officers and Corporate Governance	95
ITEM 11.	Executive Compensation	95
ITEM 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	95
ITEM 13.	Certain Relationships and Related Transactions, and Director Independence	95
ITEM 14.	Principal Accounting Fees and Services	95
PART IV
ITEM 15.	Exhibits, Financial Statement Schedules	96

PART I

Cautionary Statement Regarding Forward-Looking Information

This annual report on Form 10-K contains, in addition to historical information, certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts contained in this prospectus, including statements regarding our future results of operations and financial position, strategy and plans, and our expectations for future operations, are forward-looking statements. The words “believe,” “may,” “will,” “would,” “might,” “could,” “estimate,” “continue,” “anticipate,” “design,” “intend,” “plan,” “seek,” “potential,” “expect” and similar expressions are intended to identify forward-looking statements. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our financial condition, results of operations, strategy, short-term and long-term business operations and objectives, and financial needs. Forward-looking statements include, but are not limited to, statements about:

• our financial performance, including revenues, cost of revenues and operating expenses;

• government programs, policymaking and mandates relating to renewable fuels;

• the availability, future price and volatility of feedstocks;

• the future price and volatility of petroleum;

• our liquidity and working capital requirements;

• anticipated trends and challenges in our business and competition in the markets in which we operate;

• our ability to successfully implement our acquisition strategy and integration strategy;

• progressing facilities currently under development to the construction and operational stages, including planned capital expenditures and our ability to obtain financing for such construction;

• our ability to protect proprietary technology and trade secrets;

• the development of competing alternative fuels and energy services;

• our risk management activities;

• product performance, in cold weather or otherwise;

• seasonal fluctuations in our business;

• our current products as well as products we are developing;

• critical accounting policies and estimates, the impact or anticipated impact of recent accounting pronouncements, guidance or changes in accounting principles and future recognition of impairments for the fair value of assets, including goodwill, financial instruments, intangible assets and other assets acquired; and

• assumptions underlying or relating to any of the foregoing.

These statements reflect current views with respect to future events and are based on assumptions and subject to risks and uncertainties. We note that a variety of factors could cause actual results and experience to differ materially from the anticipated results or expectations expressed in our forward-looking statements. Given these uncertainties, you should not place undue reliance on these forward-looking statements. Forward-looking statements are also subject to risks and uncertainties that could cause actual results to differ materially from those expected. These risks and uncertainties include, but are not limited to, those risks discussed in Item 1A of this report.

Forward-looking statements contained in this report present management’s views only as of the date of this report. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. You are advised, however, to consult any further disclosures we make on related subjects in our 10-Q and 8-K reports filed with the Securities and Exchange Commission.

ITEM 1. Business

General

We intend to become a leading producer of advanced biofuels and renewable chemicals. We are currently the largest producer of biodiesel in the United States based on gallons produced. We participate in each aspect of biodiesel production, from acquiring feedstock, managing construction and operating biodiesel production facilities to marketing, selling and distributing biodiesel and its co-products. During 2013, we sold 259 million gallons of biodiesel and had total revenues of $1.5 billion.

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We operate a network of eight operational biodiesel plants, with an aggregate nameplate production capacity of 257 million gallons per year, or mmgy. We acquired six of our eight facilities since February 2010. We believe our fully integrated approach, which includes acquiring feedstock, managing biorefinery facility construction and upgrades, operating biorefineries, marketing renewable products and distributing through a network of terminals, positions us to capitalize on growing demand for biodiesel, renewable chemicals and other advanced biofuels. Our experience has enabled us to develop extensive expertise in biorefinery operations, from facility construction management and feedstock procurement to biodiesel production, marketing, logistics and risk management.

We are a low-cost biodiesel producer. We primarily produce our biodiesel from a wide variety of lower cost feedstocks, including inedible corn oil, used cooking oil and inedible animal fat. We also produce biodiesel from virgin vegetable oils, which are more widely available and tend to be higher in price. We believe our ability to process a wide variety of feedstocks provides us with a cost advantage over many biodiesel producers, particularly those that rely on higher cost virgin vegetable oils, such as soybean oil or canola oil.

On January 22, 2014, we acquired substantially all of the assets and certain liabilities of LS9, Inc., or LS9, as part of our strategy to expand into the production of renewable chemicals, additional advanced biofuels and other products. LS9 was a research and development stage company focused on harnessing the power of microbial fermentation to develop and produce renewable chemicals, fuels and other products. The assets acquired consist mainly of in-process research and development, intellectual property and fixed assets.

On February 12, 2014, we announced the launch of a new division that will sell petroleum-based heating oil and diesel fuel, and enable us to offer more biofuel blends. We will sell heating oil and ultra-low sulfur diesel, or ULSD, at terminals initially throughout the northeastern U.S. as well as BioHeat® blended heating fuel at one of our existing terminal locations and potentially in other locations across North America.

Fully Integrated Platform

Our integrated approach to biodiesel production consists of:

• Design, Build and Upgrade. We have developed expertise in designing, managing the construction of and upgrading biodiesel plants. We have managed the design and construction of ten commercial-scale biodiesel plants on our own behalf and for third parties. Our design, build and upgrade experience has enabled us to improve and test new production technologies that enable lower operating costs, improved yields, and expand our ability to use lower cost feedstocks. This expertise has also allowed us to quickly and cost effectively upgrade and integrate the biodiesel plants we have acquired. We intend to leverage this experience into the design and construction of renewable chemical and other advanced biofuel production facilities as we expand into these areas.

• Operate and Manage. We manage the operation of our eight biodiesel production facilities and have managed production facilities for others. This operational experience allows us to improve our production process efficiency and quality and to deploy best practices throughout our network. A key element in successfully managing a biodiesel plant is the procurement of feedstock. We believe our strong knowledge and history in feedstock markets allows us to procure feedstock more efficiently and reliably than our competitors. We believe our operational expertise also enables us to effectively integrate new facilities we acquire and manage facilities for others.

• Marketing and Distribution. We market and distribute both the biodiesel we produce as well as biodiesel produced by others throughout the United States. We accomplish this through sales to customers from our biorefineries and also through a number of distribution terminals around the country. We believe we are able to capture business from the largest customers, namely large United States petroleum refiners and national travel center chains, whose demand cannot be met by smaller producers or marketers that do not have our scale or national reach.

We believe our biorefinery platform and experience running a fully integrated biorefining company is highly desirable for developing renewable chemicals and additional advanced biofuels. We are able to co-locate renewable chemical and/or additional advanced biofuel production plants at our existing facilities, as well as leverage our design-build, operations and management capabilities to accelerate commercialization.

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Plant Network

Our production network consists of the following facilities;

Property	Nameplate Production Capacity1	Production Capacity for Current Feedstock Mix	REG Operations Commenced	Feedstock Capability
Completed
Ralston, Iowa	12	12	2003	Refined Oils and Fats
Albert Lea, Minnesota2	30	30	20062	Crude, High FFA and Refined Oils and fats
Newton, Iowa	30	24	2007	Crude, High FFA and Refined Oils and Fats
Seabrook, Texas	35	33	2008	Refined Oils and Fats
Danville, Illinois	45	37	2009	Crude, High FFA and Refined Oils and Fats
Seneca, Illinois	60	55	2010	Crude, High FFA and Refined Oils and Fats
New Boston, Texas	15	12	2013	Crude, High FFA and Refined Oils and Fats
Ellenwood, Georgia 4	15	n/a	n/a	Crude, High FFA and Refined Oils and Fats
Mason City, Iowa 3	30	30	2013	Refined Oils and Fats
Partially Constructed			% Complete
St. Rose, Louisiana	60	n/a	~45%	Crude, High FFA and Refined Oils and Fats
Emporia, Kansas	60	n/a	~20%	Crude, High FFA and Refined Oils and Fats
Clovis, New Mexico	15	n/a	~50%	Crude, High FFA and Refined Oils and Fats

₁  The nameplate capacity listed above is based on soy.

₂  SoyMor began operations of the biodiesel facility located in Albert Lea, Minnesota in 2006 under our management. In February 2008, SoyMor stopped production and idled the facility. In July 2011, we acquired the biodiesel facility and recommenced operations of the facility.

₃  We are in the process of completing a $20 million upgrade to this facility to produce biodiesel using crude and high FFA oils and fats, which is anticipated to be completed by the second quarter of 2014.

₄  Idled by prior owner at time of our purchase and remains idled pending repairs or upgrades. We have not yet set a production date.

In addition to the production facilities listed above, REG maintains a testing laboratory at its corporate headquarters in Ames, Iowa. The testing laboratory allows us to test various feedstocks for conversion into biodiesel, as well as various manufacturing processes available in the production of biodiesel.

Our Feedstocks and Other Inputs

Our ability to use a wide range of feedstocks gives us the flexibility to quickly respond to changes in feedstock pricing to maintain our feedstock cost advantage. We have the ability to rapidly change our processing techniques to accommodate different feedstocks and feedstock mixes. In 2013, approximately 83% of our total feedstock usage was lower cost inedible corn oil, used cooking oil or inedible animal fat feedstock and 17% was from refined vegetable oils, such as soybean oil or canola oil. Our lower cost feedstock plants generally run on a mix of lower cost feedstocks. As different feedstocks are delivered to the plant, they are combined or segregated into our feedstock storage tanks and the plant is tuned to optimize the processing of that specific feedstock mix.

We procure our feedstocks from numerous vendors in small to medium quantities. There is no established futures market for lower cost feedstocks. Inedible corn oil and used cooking oil can be purchased in nearby forward positions of three to twelve months on fixed priced contracts or sometimes indexed to the New York Mercantile Exchange, or NYMEX, heating oil index. We generally purchase inedible animal fats on a freight delivered basis and purchase in one to four week forward positions. We

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maintain both long-term contractual arrangements and long-term trading relationships with key feedstock suppliers, which provide us with an advantage. Some of these relationships are with our investors, such as West Central. Soybean oil can be purchased on a spot or forward contract basis from a number of suppliers.

We work with developers of next generation feedstocks, such as algae and camelina, to assist them in bringing these new feedstocks to market. We have converted each of these feedstocks, as well as other second generation feedstocks, into high quality biodiesel in our laboratory. We believe we are well positioned to incorporate these new feedstocks into our production process as they become commercially available.

We procure methanol, chemical catalysts such as sodium methylate and hydrochloric acid, under fixed-price contracts and formula-indexed contracts based upon competitive bidding. These procurement contracts typically last from three months to one year. The price of methanol is indexed to the monthly reported published price of methanol plus or minus a negotiated basis.

Distribution

We have established a national distribution system to supply biodiesel throughout the United States. Each of our biorefineries is equipped with an on-site rail loading system, a truck loading system, or both, and a logistics and supply chain management staff. Our Seneca biorefinery near the Illinois River has direct barge access covering customers using the inland waterways system. Our Houston biorefinery has barge and deep-water ship loading capability. We also manage some customers’ biodiesel storage tanks and replenishment process. We lease more than 360 railcars for transportation and lease biodiesel storage tanks in 31 terminals as of December 31, 2013. In general, the terminals where we lease our biodiesel storage tanks are petroleum fuel terminals so that fuel distributors and other biodiesel customers can create a biodiesel blend at the terminal before further distribution. Terminal leases typically have one to three-year terms and are generally renewable subject to certain terms and conditions. We have sold biodiesel in 46 states and three provinces in Canada.

Risk Management

The prices for feedstocks and biodiesel can be volatile and are not always closely correlated. Lower cost feedstocks are particularly difficult to risk manage given that such feedstocks are not traded in any public futures market. To manage feedstock and biodiesel price risks, we utilize forward contracting, hedging and other risk management strategies, including the use of futures, swaps, options and over-the-counter products.

In establishing our risk management strategies, we draw from our own in-house risk management expertise and we consult with industry experts. We utilize research conducted by outside firms to provide additional market information and risk management strategies. We believe combining these sources of knowledge, experience and expertise gives us a more sophisticated and global view of the fluctuating commodity markets for raw materials and energies, which we then can incorporate into our risk management strategies.

Seasonality

Biodiesel producers have historically experienced seasonal fluctuations in demand for biodiesel. Biodiesel demand has tended to be lower during the winter in Northern and Midwestern states due to lack of infrastructure to properly handle biodiesel in winter and concerns about biodiesel’s ability to operate optimally in cold weather, as compared to the most commonly used petroleum-based diesel fuel. This seasonal fluctuation is strongest for biodiesel made from inedible animal fats and used cooking oil. Biodiesel made from those feedstocks has a higher cloud point, the point at which a fuel begins to gel, than biodiesel produced from soybean oil, canola oil or inedible corn oil, which may cause cold weather performance issues.

Competition

We face competition in the distillate fuel market from producers and suppliers of petroleum-based diesel fuel and in the biodiesel sub-market from other biodiesel producers, marketers, traders and distributors. Our principal methods of competition are product quality, both biodiesel and Renewable Identification Number, or RIN, quality, supply reliability and price. We also face competition in the biomass-based diesel RIN compliance market from producers of renewable diesel and in the advanced biofuel RIN compliance market from producers of other advanced biofuels. In the United States and Canadian biodiesel markets, we compete with large, multi-product companies that have greater resources than we do. Archer Daniels Midland Company, Cargill, Incorporated, Louis Dreyfus Commodities Group and Ag Processing Inc. are major international agribusiness corporations and biodiesel producers with the financial, sourcing and marketing resources to be formidable competitors in the biodiesel industry. These agribusiness competitors tend to make biodiesel from higher cost virgin vegetable oils such as soybean or canola oil, which they produce as part of their integrated agribusinesses.

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We also face competition from independent biodiesel producers. Unlike us, most of these competitors own only one biodiesel plant and thus, do not enjoy the benefits of scale that we do. Many of our competitors own biodiesel plants that can process only higher cost virgin vegetable oils. Furthermore, in our marketing and distribution, we face competition from biodiesel traders such as Astra, Gavilon, Chem Oil, Morgan Stanley, Tenaska and Traffigura. These trading companies have greater financial resources than we do and are able to take significant biodiesel positions in the marketplace. These competitors are often customers and/or suppliers of ours as well.

In the amended Renewable Fuel Standard, or RFS2, for biomass-based diesel and the Canadian renewable fuel requirement markets, we are also in competition with producers of renewable diesel, such as Neste Oil, which has approximately 600 million gallons of renewable diesel production capacity in Asia and Europe; Diamond Green Diesel, LLC, the joint venture between Valero Energy Corp. and Darling International; and Dynamic Fuels, LLC, the joint venture between Syntroleum Corporation and Tyson Foods, Inc. We have executed an agreement to purchase substantially all the assets of Syntroleum Corporation, including their 50% ownership of the Dynamic Fuel, LLC 75 million gallon per year renewable diesel facility. Renewable diesel can also satisfy the RFS2 biomass-based diesel requirement if the renewable diesel meets the greenhouse gas reduction requirements and may satisfy Canadian renewable fuel requirements. Some of the producers of renewable diesel, like Neste Oil and Diamond Green Diesel, LLC may have greater financial resources than we do. In the RFS2 advanced biofuel market, we also compete with other producers and importers of advanced biofuels such as Brazilian sugarcane ethanol producers and producers of biogas used in transportation.

The biodiesel industry is also in competition with the petroleum-based diesel fuel industry. The size of the biodiesel industry is small compared to the size of the petroleum-based diesel fuel industry and large petroleum companies have greater resources than we do.

Government Programs Favoring Biodiesel Production and Use

The biodiesel industry benefits from numerous federal and state government programs, the most important of which is RFS2.

Renewable Fuel Standard

On July 1, 2010, RFS2’s biomass-based diesel requirement became effective, requiring for the first time that a certain percentage of the diesel fuel consumed in the United States be made from renewable sources. The biomass-based diesel requirement can be satisfied by two primary fuels, biodiesel and renewable diesel. Prior to 2013, renewable diesel had not been available in the United States in significant commercial quantities and thus, biodiesel has satisfied the vast majority of the RFS2 biomass-based diesel requirement. RFS2 required the use of one billion gallons of biomass-based diesel in 2012, required 1.28 billion gallons in 2013 and at least one billion gallons each year thereafter, with such higher amounts subject to the United States Environmental Protection Agency, or EPA, proposals and the Office of Management and Budget, or OMB, approval. As of this filing, the EPA has not finalized the 2014 biomass-based diesel requirement. The EPA has proposed a 2014 biomass-based diesel required volume obligation, or RVO, of 1.28 billion gallons and a reduced Advanced Biofuel RVO of 2.0 to 2.51 billion gallons rather than the original Energy Independence and Security Act of 2009, or EISA, volume of 3.75 billion gallons of advanced biofuels for 2014. We expect RFS2 to continue to create demand for biodiesel.

The biomass-based diesel requirement is one of four separate renewable fuel requirements under RFS2. The RFS2 requirements are based on two primary categories and two subcategories. The two primary categories are conventional renewable fuel, which is primarily satisfied by corn ethanol, and advanced biofuel, which is defined as a biofuel that reduces lifecycle greenhouse gas emissions by at least 50% compared to the petroleum-based fuel the biofuel is replacing. The advanced biofuel category has two subcategories, cellulosic biofuel, to be satisfied by newly developed cellulosic biofuels, such as ethanol made from woody biomass, and biomass-based diesel, which is intended to be satisfied by biodiesel and renewable diesel. RFS2’s total advanced biofuel requirement is larger than the combined cellulosic fuel and biomass-based diesel requirements, thus requiring the use of additional volumes of advanced biofuels.

The RFS2 requirement for additional volumes of advanced biofuels can be satisfied by any advanced biofuel, including biodiesel, renewable diesel, biogas used in transportation, biobutanol, cellulosic ethanol or sugarcane-based ethanol. The additional advanced biofuel requirement was 500 million gallons in 2012, one billion gallons in 2013 and is expected to be between 80 million to 590 million gallons for 2014 based on the EPA proposed requirements for 2014. Biodiesel comprises the majority of advanced biofuel produced in the United States and we expect the RFS2 advanced biofuel requirement to increase demand for biodiesel.

The advanced biofuel RVO is expressed in terms of ethanol equivalent volumes, or EEV, which is based on the fuel’s renewable energy content compared to ethanol. Biodiesel has an EEV of 1.5 compared to 1.0 for sugarcane-based ethanol. Accordingly, it requires less biodiesel than sugarcane-based ethanol to meet the required volumes as each gallon of biodiesel

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counts as 1.5 gallons for purposes of fulfilling the advanced biofuel RVO, providing an incentive for Obligated Parties to purchase biodiesel to meet their advanced biofuel RVO.

The RFS2 volume requirements apply to petroleum refiners and petroleum fuel importers in the 48 contiguous states and Hawaii, who are defined as “Obligated Parties” in the RFS2 regulations, and requires these Obligated Parties to incorporate into their petroleum-based fuel a certain percentage of renewable fuel or purchase credits in the form of RINs from those who do. An Obligated Party’s RVO is based on the volume of petroleum-based fuel they produce or import. The largest United States petroleum companies, such as Valero, Phillips 66, ExxonMobil, British Petroleum, Chevron and Shell, represent the majority of the total RVOs, with the remainder made up of smaller refiners and importers.

Renewable Identification Numbers

The EPA created the renewable identification number, or RIN, system to track renewable fuel production and compliance with the renewable fuel standard. EPA registered producers of renewable fuel may generate RINs for each gallon of renewable fuel they produce. In the case of biodiesel, 1.5 biomass-based diesel RINs may be generated for each gallon of biodiesel produced. Most renewable fuel, including biodiesel, is then sold with its associated RINs attached. Under the RFS2 regulations, the RINs may also be separated from the gallons of renewable fuel and once separated they may be sold as a separate commodity. RINs are ultimately used by Obligated Parties to demonstrate compliance with the RFS2. Obligated Parties must obtain and retire the required number of RINs to satisfy their RVO during a particular compliance period. An Obligated Party can obtain RINs by buying renewable fuels with RINs attached, buying RINs that have been separated, or producing renewable fuels themselves. All RIN activity under RFS2 must be entered into the EPA’s moderated transaction system, which tracks RIN generation, transfer and retirement. RINs are retired when used for compliance with the RFS2 requirements.

The value of RINs is significant to the price of biodiesel. In July 2010 when RFS2 became effective, biomass-based diesel RINs began trading at approximately $0.55 per RIN. By the end of 2010, the 2010 biomass-based diesel RIN value had become increasingly significant to the price of biodiesel, contributing approximately $1.11, or 26% of the average The Jacobsen B100 Upper Midwest spot price of a gallon of biodiesel. As of December 31, 2011, RINs contributed approximately $1.83, or 38% of the average The Jacobsen B100 Upper Midwest spot price of a gallon of biodiesel. During 2012, the value of RINs, as reported by OPIS, have contributed to the average B100 spot price of a gallon of biodiesel, as reported by The Jacobsen, and range from a low of $0.63 per gallon, or 24%, in October to a high of $2.39, or 50%, per gallon in January. During 2013, the value of RINs, as reported by OPIS, have contributed to the average B100 spot price of a gallon of biodiesel, as reported by The Jacobsen, and range from a low of $0.35 per gallon, or 9%, in October to a high of $2.20, or 43% per gallon in January. There was a sharp decline in RIN prices during third and fourth quarters of 2013 that carried through the end of the year. During this period, RIN pricing declined from $1.07 per RIN at June 30, 2013 to the low price of $0.24 per RIN in November 2013, finishing the year at $0.35 per RIN on December 31, 2013, as reported by OPIS, which contributed to the decline in price of biodiesel during 2013.

Blenders Tax Credit

The blenders tax credit, when in place, provides a $1.00 per gallon excise tax credit to the first blender of biodiesel with at least 0.1% petroleum-based diesel fuel. The blenders tax credit can then be credited against such blenders federal excise tax liability or the blender can obtain a cash refund from the United States Treasury for the value of the credit. The blenders tax credit became effective January 1, 2005 and then lapsed January 1, 2010 before being reinstated retroactively on December 17, 2010. The blenders tax credit again expired as of December 31, 2011 and on January 2, 2013, it was again reinstated retroactively for 2012 through December 31, 2013. The blenders tax credit expired again on December 31, 2013 and it is uncertain whether it will be reinstated and if reinstated, whether or not it would be reinstated retroactively.

State Programs

Several states have enacted legislation providing incentives for the use of biodiesel, requiring the use of biodiesel, or both. For example, Illinois offers an exemption from the generally applicable 6.25% sales tax for biodiesel blends that incentivizes blending at 11% biodiesel, or B11, through December 31, 2018. Illinois’ program has made that state the largest biodiesel market in the country. During 2011, Iowa offered a $0.03 per gallon income tax credit to petroleum marketers of B2 blends. In May 2011, Iowa signed into law a bill that encourages Iowa’s petroleum marketers to blend biodiesel into on-road and off-road diesel in a multi-year incentive program beginning in 2012. In 2012, retailers earned $0.02 per gallon for B2 blends or $0.045 per gallon for B5 blends. For 2013 through 2017, retailers earn $0.045 per gallon of B5. The new law also creates a biodiesel production incentive of $0.03 per gallon in 2012, $0.025 per gallon in 2013, and $0.02 per gallon in 2014, for each gallon produced in an Iowa facility up to the first 25 million gallons per production plant. In Texas, the biodiesel portion of biodiesel blends are exempt from state excise tax, which results in a $0.20 per gallon incentive for B100. In addition, recent regulatory changes by the Texas Department of Revenue and Texas Commission on Environmental Equality have removed regulatory

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barriers and eliminated limitations to blending biodiesel under the Texas Low Emissions Diesel program. In addition, California has adopted a low carbon fuel standard, which requires an increasing reduction in the carbon intensity of transportation fuels, which has created an incentive for the use of lower carbon intensity biodiesel.

According to the U.S. Department of Energy, more than 40 states currently have implemented various programs that encourage the use of biodiesel through blending requirements as well as various tax incentives. Currently, Minnesota law requires a B5 blend throughout the entire year. The Minnesota legislation calls for the blend to increase to B10 (in the future to B20), in the summer months. Oregon has implemented a B5 biodiesel blend requirement. New Mexico, Pennsylvania and Washington have all adopted legislation requiring biodiesel blends beginning at B2 (and B5 in New Mexico) with incremental increases, provided certain feedstock or production minimums are met. Several northeast states, including Connecticut and Vermont, have adopted legislation requiring biodiesel blends in home heating oil. The City of New York has adopted legislation requiring biodiesel blends at a 2% rate for heating oil and the State of New York is expected to debate adopting a state-wide requirement during 2014.

Although we believe that state requirements for the use of biofuels increase demand for our biodiesel within such states, they may not increase overall demand in excess of RFS2 requirements. Rather, existing demand for our biofuel from Obligated Parties in connection with federal requirements may shift to states that have use requirements or tax incentive programs.

Environmental Matters

Our biofuel facilities, like other fuel and chemical production facilities, are subject to various federal, state and local environmental laws and regulations, including those relating to the discharge of materials into the air, water and ground; the generation, storage, handling, use, transportation and disposal of hazardous materials; ecological and natural resources; and the health and safety of our employees, contractors and the public. These laws and regulations require us to obtain and comply with numerous environmental permits to construct and operate each biofuel facility. They can require expensive pollution control equipment or operational changes to limit actual or potential impacts to human health and the environment. A violation of these laws, regulations or permit conditions could result in substantial fines, natural resource damage, criminal sanctions, permit revocations and or facility shutdowns. However, we do not currently have any such proceedings either pending or threatened against our facilities that would materially affect our business or financial condition. Furthermore, we do not anticipate a material adverse effect on our business or financial condition as a result of our efforts to comply with these requirements as presently in effect.

We also do not expect to incur material capital expenditures for environmental controls in this or the succeeding fiscal year. However, new laws, new interpretations of existing laws, increased governmental enforcement of environmental laws or other developments could require us to make additional significant expenditures. Continued government and public emphasis on environmental issues can be expected to result in increased future investments for environmental controls at our ongoing operations. Future environmental laws and regulations and related interpretations applicable to our operations, more vigorous enforcement policies and discovery of currently unknown conditions may require substantial capital and other expenditures.

Our air emissions are subject to the federal Clean Air Act and similar state and local laws and associated regulations. For example, the EPA has promulgated National Emissions Standards for Hazardous Air Pollutants, or NESHAPs, under the federal Clean Air Act that apply to facilities that we own or manage if the emissions of hazardous air pollutants exceed certain thresholds. If a facility we operate is authorized to emit hazardous air pollutants above the threshold level, then we are required to comply with the NESHAP related to our manufacturing process, boilers and process heaters. New or expanded facilities would be required to comply with such standards upon startup if they exceed the hazardous air pollutant threshold. In addition to costs for achieving and maintaining compliance with these laws, more stringent standards also may limit our operating flexibility. Other federal and state emission limitations, such as New Source Performance Standards, may also apply to facilities we own or manage. Because other domestic biodiesel manufacturers will have similar restrictions, however, we believe that compliance with more stringent air emission control or other environmental laws and regulations is not likely to materially affect our competitive position.

We do transport and dispose of small quantities of hazardous materials from our research and testing laboratories. The facilities in our network have been and may in the future be located on or adjacent to industrial property. There is a risk of liability for the investigation and cleanup of environmental contamination at each of the properties that we own or operate and at off-site locations where we arranged for the disposal of hazardous substances. If these substances have been or are disposed of or released at sites that undergo investigation or remediation by regulatory agencies or private parties, we may be responsible under the Comprehensive Environmental Response Compensation and Liability Act or other environmental laws for all or part of the costs of investigation or remediation and for damage to natural resources. We also may be subject to related claims by private parties alleging property damage and personal injury due to exposure to hazardous or other materials at or from these properties. Some of these matters may require us to expend significant amounts for investigation, cleanup or other costs. We are

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not aware of any material environmental liabilities relating to contamination at or from our facilities or at off-site locations where we have transported or arranged for the disposal of hazardous substances.

The hazards and risks associated with producing and transporting our products, such as fires, natural disasters, explosions, abnormal pressures, blowouts and pipeline ruptures also may result in personal injury claims or damage to property and third parties. As protection against operating hazards, we maintain insurance coverage against some, but not all, potential losses. Our coverage includes physical damage to assets, employer’s liability, comprehensive general liability, automobile liability and workers’ compensation. We believe that our insurance is adequate and customary for our industry, but losses could occur for uninsurable or uninsured risks or in amounts in excess of existing insurance coverage. We do not currently have pending material claims for damages or liability to third parties relating to the hazards or risks of our business.

History

Our predecessor, REG Biofuels, LLC, formerly named REG Biofuels Inc., which was formerly named Renewable Energy Group, Inc., was formed under the laws of the State of Delaware in August 2006 upon acquiring the assets and operations of the biodiesel division of West Central Cooperative, or West Central, and two of West Central’s affiliated companies, InterWest, L.C. and REG, LLC. Prior to February 26, 2010, the “Company,” “REG,” “we,” “us,” “our” and similar references refer to the business, results of operations and cash flows of REG Biofuels, Inc., formerly Renewable Energy Group, Inc., which is considered the accounting predecessor to Renewable Energy Group, Inc., formerly, REG Newco, Inc. After February 26, 2010, such references refer to the business, results of operations and cash flows of Renewable Energy Group, Inc., and its consolidated subsidiaries.

In June 2008, we acquired our Houston facility, which has access to deepwater ports, from U.S. Biodiesel Group, Inc., or USBG, through a transaction which included an equity investment in us by USBG. We also acquired a terminal facility with the option to build a biodiesel plant at the Port of Stockton in Stockton, California. In July 2009, we sold the Stockton terminal facility.

On February 26, 2010, we acquired our Danville facility by merger from Blackhawk Biofuels, LLC. On March 8, 2010, we acquired our Newton Facility, through the purchase of substantially all of the assets and liabilities of Central Iowa Energy, LLC. On April 8, 2010, we closed a transaction in which we agreed to lease and operate the Seneca facility and certain related assets.

On July 16, 2010, we acquired certain assets of Tellurian Biodiesel, Inc., or Tellurian, and American BDF, LLC, or ABDF. Tellurian was a California-based biodiesel company and marketer. ABDF was a joint venture owned by Golden State Service Industries, Restaurant Technologies, Inc., or RTI, and Tellurian. ABDF previously focused on building a national array of small biodiesel plants that would convert used cooking oil into high quality, sustainable biodiesel. The purchase connects RTI’s national used cooking oil collection system, with more than 16,000 installations, with our national network of biodiesel manufacturing facilities.

On September 21, 2010, we acquired for stock the partially constructed Clovis facility and $8.0 million in cash.

On July 12, 2011, we acquired for stock all the assets and certain liabilities of SoyMor cooperative and SoyMor Biodiesel, LLC.

On January 24, 2012, we completed our initial public offering in which we sold 6.8 million shares of our Common Stock at a price to the public of $10.00 per share. Our Common Stock is currently traded publicly on the NASDAQ Global Market under the symbol “REGI.”

On January 24, 2012, we exercised an option to purchase our Seneca facility, which we previously operated under lease. The exercise price of the option was $12 million, of which approximately $937,000 was previously paid, and 60,000 shares of our Common Stock.

On February 28, 2012, we issued 58,501 shares of Class A Common Stock with respect to the intangible supply agreement in connection with the purchase of substantially all Tellurian Biodiesel, Inc. and American BDF, LLC assets.

On October 26, 2012, we issued 900,000 shares of common stock and approximately $324,000 in cash in connection to the purchase of substantially all the assets of North Texas Bio Energy, LLC, or NTBE.

On November 16, 2012, we acquired substantially all the assets of BullDog Biodiesel, LLC, or BullDog, in exchange for approximately $1.3 million in cash and approximately $1.3 million of in-kind contribution.

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On July 30, 2013, we acquired substantially all of the assets of Soy Energy, LLC's, or the Soy Energy Assets, in exchange for $10.9 million of cash and the issuance of a $5.1 million promissory note to Soy Energy. The Soy Energy Assets consisted of a 30 mmgy nameplate capacity biodiesel facility and related assets located in Mason City, Iowa. We began producing biodiesel on October 1, 2013 and have begun a $20 million project to upgrade the plant to a multi-feedstock facility.

During 2013, certain Series B Preferred Stockholders exercised their option to convert 2,333,428 shares of Series B Preferred Stock into 4,716,043 shares of Common Stock.

During the third quarter 2013, our closing sale price of its Common Stock exceeded $15.00 for at least 20 days in a 30 consecutive trading day period with the average daily trading volume exceeding 200,000 shares. Therefore, we opted to cause 50% of the then-outstanding shares of Series B Preferred Stock to be converted as provided for in the preferred stock shareholder agreement. We converted 518,365 shares of Series B Preferred Stock into 1,047,465 shares of Common Stock.

On December 17, 2013, we entered into an agreement to purchase substantially all of the assets and liabilities of Syntroleum Corporation in exchange for 3,796,000 shares of REG common stock (subject to reduction in the event that the aggregate market value of the REG common stock to be issued would exceed $49 million or if the cash transferred to REG is less than $3.2 million). The assets acquired include a 50% interest in Dynamic Fuels, LLC, a 75 mmgy renewable diesel production facility in Geismar, Louisiana and an extensive patent portfolio of gas-to-liquids and renewable fuel technologies. The closing of this acquisition requires, in addition to other matters, the affirmative vote of a majority of the shares of Syntroleum approving the sale through a shareholder vote.

On January 22, 2014, we acquired industrial biotechnology research and development company LS9 for a purchase price of up to $61.5 million, consisting of up front and earnout payments, in stock and cash. We have not completed our initial accounting for this business combination as the valuation of the assets acquired and contingent consideration has not been finalized.

Employees

As of December 31, 2013, we employed 368 full-time employees. None of our employees are represented by a labor organization or under any collective bargaining agreements. We consider our relationship with our employees to be good.

Intellectual Property

We own a significant number of U.S. and international patents, trade secrets, and licenses related to our biodiesel operations and expect that number to grow as we continue to pursue technological innovations. We believe that, in the aggregate, this intellectual property is generally important to our operations and competitive position, but do not regard our biodiesel business as being dependent upon any single piece or group of intellectual property. We rely primarily on trade secret laws and contractual restrictions to protect our biodiesel technology.

In addition, we have 13 issued U.S. patents, 6 issued foreign patents and over 100 patent applications pending from our industrial biotechnology business.

Customer concentration

We have one customer which accounts for 10% or more of our total revenues. Sales to Pilot Travel Centers LLC were $243.3 million, $363.4 million and $189.8 million, representing approximately 16%, 36% and 23%, respectively, of our total revenues for 2013, 2012, and 2011.

Research and development

We devote considerable resources to our research and development programs which have been primarily targeted towards improving the quality and efficiency of the biodiesel process and developing applications for co-products. Our industrial biotechnology business has added additional resources towards our research and development surrounding renewable chemicals, additional advanced biofuels and other products. We expect an increase in our expense associated with these programs. We incurred research and development expense of $0.26 million, $0.01 million, and $0.02 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Executive Officers of the Registrant

Daniel J. Oh, age 48, has served as our Chief Executive Officer and as a Director since September 2011 and President since April 2009. Mr. Oh served as our Chief Operating Officer from June 2007 to September 2011, our Chief Financial Officer and Executive Vice President from June 2006 to June 2007 and as Secretary from August 2006 until March 2009. From May 2004 to May 2006, Mr. Oh served at Agri Business Group, Inc., or ABG, an agribusiness management consulting firm, including as

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Associate Director, Director and Vice President. Prior to joining ABG, Mr. Oh served in several different positions, including Senior Financial Analyst, Financial Team Member and Manager, in the Corporate Finance and Investment Banking area of the Corporate Strategy and Business Development Group at Eli Lilly and Company, a global pharmaceutical company, from August 2001 to May 2004. From 2000 to August 2001, Mr. Oh served as a consultant with McKinsey & Company, a leading consulting firm, where he focused on the pharmaceutical industry. From 1987 to 1998, Mr. Oh served as an officer in the United States Army, earning the rank of Major. Mr. Oh holds an M.B.A. from the University of Chicago with concentrations in finance, accounting and strategic management as well as a B.S. with a concentration in economics from the United States Military Academy. Mr. Oh serves as a director for the Ames Economic Development Commission. Mr. Oh’s employment agreement with us provides that he will serve as a director.

Chad Stone, age 44, has served as our Chief Financial Officer since August 2009. Prior to joining us, he was a Director at Protiviti Inc., a global business consulting and internal audit firm, from October 2007 to May 2009. From August 1997 to September 2007, Mr. Stone served as Director with PricewaterhouseCoopers and was a manager at Arthur Andersen from July 1992 to August 1997. He has been an executive Board Member of the Iowa Biodiesel Board since 2011. Mr. Stone has over 20 years of experience in leading financial reporting, strategy, policy and compliance. Mr. Stone holds an M.B.A. with concentrations in finance, economics and accounting from the University of Chicago, Graduate School of Business and a B.B.A in Accounting from the University of Iowa. He is also a Certified Public Accountant.

Brad Albin, age 51, has served as our Vice President, Manufacturing since February 2008. Mr. Albin also served as Vice President of Construction Services from April 2007 through February 2008. From September 2006 through April 2007, Mr. Albin served as Director, Construction. Prior to joining us, Mr. Albin served as General Manager for West Central, one of our predecessors from July 2006 through September 2006. From November 2002 to January 2006, Mr. Albin served as Executive Director of Operations for Material Sciences Corporation, where he directed multi-plant operations for automotive and global appliance industries. From 1996 to 2002, Mr. Albin was the Vice President of Operations for Griffin Industries. Mr. Albin has over 24 years of experience in executive operations positions in multi-feedstock biodiesel, chemical, food and automotive supplier companies, such as The Monsanto Company, The NutraSweet Company and Griffin Industries. Mr. Albin was a charter member of the National Biodiesel Accreditation Committee. Mr. Albin is currently the Past-President of the Iowa Renewable Fuels Association and was the President in 2012, as well as, Vice President in 2011. Mr. Albin holds a B.S. in Chemistry from Eastern Illinois University.

David Elsenbast, age 52, has served as our Vice President, Supply Chain Management since April 2009. From August 2006 to April 2009, Mr. Elsenbast served as our Vice President, Procurement. Prior to joining us, Mr. Elsenbast served in the same role for West Central, since April 2006. Mr. Elsenbast has also served on the Board of the American Fats and Oils Association since October 2009. From 1990 to March 2006, Mr. Elsenbast served in various roles for Milk Specialties Company, an animal nutrition company, including Vice President of Business Development, Vice President of Operations and Purchasing and General Manager. Mr. Elsenbast has over 29 years in agricultural business development, supply chain management, operations, and purchasing. Mr. Elsenbast holds a B.S. in agricultural business from Iowa State University.

Gary Haer, age 60, has served as our Vice President, Sales and Marketing since we commenced operations in August 2006. From October 1998 to August 2006, Mr. Haer served as the National Sales and Marketing Manager for biodiesel for West Central and was responsible for developing the marketing and distribution infrastructure for biodiesel sales in the United States. Mr. Haer has over 17 years of experience in the biodiesel industry. Mr. Haer currently serves on the Executive Committee of the National Biodiesel Board’s Governing Board as Past Chairman and has been elected to various officer positions during his tenure from 1998 to 2014. Mr. Haer holds a M.B.A. from Baker University and a B.S. in accounting from Northwest Missouri State University.

Available Information

Our internet address is http://www.regi.com. Through that address, our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports are available free of charge as soon as reasonably practicable after they are filed with the United States Securities and Exchange Commission. The information contained on our website is not included in, or incorporated by reference into, this annual report on Form 10-K.

ITEM 1A. Risk Factors

Our business, financial condition, results of operations and liquidity are subject to various risks and uncertainties, including those described below, and as a result, the trading price of our common stock could decline.

Risk Associated With Our Business

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Loss or reductions of governmental requirements for the use of biofuels could have a material adverse affect on our revenues and operating margins.

The biodiesel industry relies substantially on federal requirements and state policies for use of biofuels. Since biodiesel has been more expensive to produce than petroleum-based diesel fuel over the past few years, the biodiesel industry depends on governmental programs that support a market for biodiesel that might not otherwise exist.

The most important of these government programs in the United States is RFS2, which requires that a certain volume of biomass-based diesel fuel, which includes biodiesel, be consumed. RFS2 became effective on July 1, 2010 and applies through 2022. We believe that the increase in demand for our biodiesel since July 2010 is directly attributable to the implementation of RFS2. In addition, we believe that biodiesel prices since July 2010 benefited significantly from RFS2.

There can be no assurance that the United States Congress will not repeal, curtail or otherwise change, or that the EPA will not curtail or otherwise change the RFS2 program in a manner adverse to us. The petroleum industry is generally opposed to RFS2 and can be expected to continue to press for changes that eliminate or reduce its impact. Any repeal or reduction in the RFS2 requirements or reinterpretation of RFS2 resulting in our biodiesel failing to qualify as a required fuel would materially decrease the demand for and price of our biodiesel, which would materially and adversely harm our revenues and cash flows.

If Congress decides to repeal or curtail RFS2, or if the EPA is not able or willing to enforce RFS2 requirements, the demand for our biodiesel based on this program and any increases in demand that we expect due to RFS2 would be significantly reduced or eliminated and our revenues and operating margins would be materially harmed. In addition, although we believe that state requirements for the use of biofuels increase demand for our biodiesel within such states, they generally may not increase overall demand in excess of RFS2 requirements. Rather, existing demand for our biofuel from petroleum refiners and petroleum fuel importers in the 48 contiguous states or Hawaii, which are defined as “Obligated Parties” in the RFS2 regulations, in connection with federal requirements, may shift to states that have use requirements or tax incentive programs.

The EPA is required to determine the volume of biomass-based diesel that will be required each year beginning in 2013 based on the EPA’s consideration of a variety of factors, including biomass-based diesel production, consumption, and infrastructure issues, the likely impact of biomass-based diesel production and use in a variety of areas, including climate change, energy security, the agricultural sector, air quality, transportation fuel costs, job creation, and water quality, and other factors. RFS2 requires that the biomass-based diesel annual volume requirement be at least 1 billion gallons in each of those years. The biomass-based diesel volume requirement for 2013 was 1.28 billion gallons.

As of the date of this filing, the EPA has not finalized the 2014 Renewable Volume Obligations, or RVOs. The EPA has proposed a 2014 and 2015 biomass-based diesel RVO of 1.28 billion gallons in each of those years and a reduced Advanced Biofuel RVO of 2.0 to 2.51 billion gallons rather than the original Energy Independence and Security Act of 2009, or EISA, volume of 3.75 billion gallons for 2014. Before the RVO can be finalized, the OMB, has to approve EPA’s proposal, based on the same factors outlined above. Due to the one year delay publishing the proposal, which the EPA was required to determine and publish by November 30, 2012, it is possible that the 2014 RVOs will be challenged in court which may further delay any final determination of the 2014 RVOs, which could reduce the demand for and price of our biodiesel and could harm its revenues and cash flows.

As an illustrative example, according to EMTS data, 1.78 billion gallons of biomass-based diesel was produced and imported into the U.S. in 2013. Adding the 2012 carry-over to the 2013 RIN generation results in an estimated total biomass-based diesel RIN availability of approximately 2.04 billion gallons, which is approximately 760 million gallons more than required to satisfy the 1.28 billion gallon 2013 biomass-based diesel RVO. The proposed 2014 biomass-based diesel RVO of 1.28 billion gallons, would limit the 2014 carryover to 256 million gallons, or 20% of 1.28 billion, thus resulting in an excess supply of 504 million gallons of biomass-based diesel RINs. These excess RINs may be used to fulfill the advanced biofuel RVO or the renewable fuel RVO. If the volume of excess biomass-based diesel RINs exceeds the volume the Obligated Parties desire to use to fulfill their advanced biofuel and renewable fuel requirements, the demand for and price of our biodiesel and biomass-based diesel RINs may be reduced, which could harm revenues and cash flows.

Our gross margins are dependent on the spread between biodiesel prices and feedstock costs.

Our gross margins depend on the spread between biodiesel prices and feedstock costs. Historically, the spread between biodiesel prices and feedstock costs has varied significantly. Although actual yields vary depending on the feedstock quality, the average monthly spread between the price per gallon of 100% pure biodiesel, or B100, as reported by The Jacobsen Publishing Company, or The Jacobsen, and the price per gallon for the amount of choice white grease, a common inedible animal fat used by us to make biodiesel, was $1.32 in 2011, $1.26 in 2012, and $1.61 in 2013 assuming 8.0 pounds of choice white grease yields one gallon of biodiesel. The average monthly spread for the amount of crude soybean oil required to produce one gallon of biodiesel, based on the nearby futures contract as reported on the Chicago Board of Trade, or CBOT, was

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$0.89 in 2011, $0.65 in 2012, and $1.19 in 2013 assuming 7.5 pounds of soybean oil yields one gallon of biodiesel. For 2011, 2012 and 2013, approximately 83%, 84%, and 83%, respectively, of our total feedstock usage was inedible animal fat, used cooking oil or inedible corn oil and 17%, 16% and 17%, respectively, was virgin vegetable oils.

Biodiesel has traditionally been marketed primarily as an additive or alternative to petroleum-based diesel fuel and as a result biodiesel prices have been influenced by the price of petroleum-based diesel fuel, adjusted for government incentives supporting renewable fuels, rather than biodiesel production costs. A lack of close correlation between production costs and biodiesel prices means that we may be unable to pass increased production costs on to our customers in the form of higher prices. Any decrease in the spread between biodiesel prices and feedstock costs, whether as a result of an increase in feedstock prices or a reduction in biodiesel prices, including, but not limited to, a reduction in the value of RINs, such as the decrease that occurred in the last few months of 2012 and since September 1, 2013, would adversely affect our gross margins, cash flow and results of operations. For a detailed description of RINs, see “Business—Government Programs Favoring Biodiesel Production and Use—Renewable Identification Numbers.”

The costs of raw materials that we use as feedstocks are volatile and our results of operations could fluctuate substantially as a result.

The cost of feedstocks is a significant uncertainty for our business. The success of our operations is dependent on the price of feedstocks and certain other raw materials that we use to produce biodiesel. A decrease in the availability or an increase in the price of feedstocks may have a material adverse effect on our financial condition and operating results. At elevated price levels, these feedstocks may be uneconomical to use, as we may be unable to pass feedstock cost increases on to our customers.

The price and availability of feedstocks and other raw materials may be influenced by general economic, market and regulatory factors. These factors include weather conditions, farming decisions, government policies and subsidies with respect to agriculture and international trade, and global supply and demand. The significance and relative impact of these factors on the price of feedstocks is difficult to predict, especially without knowing what types of feedstock materials will be optimal for use in the future, particularly at new facilities that we may construct or acquire.

Since 2009, we have principally used inedible corn oil, used cooking oil and inedible animal fats as our feedstocks for the production of biodiesel. Our decision to shift to these feedstocks resulted from the reduction in profit caused by a significant increase in soybean oil prices, which rose from $0.1435 per pound in February 2001 to $0.7040 per pound in March 2008, and soybean oil having generally remained at high levels since that time. While prices for these alternative feedstocks can experience price volatility similar to soybean oil, their prices can also vary significantly from soybean oil based on market conditions. Since January 1, 2008, the cost per pound of choice white grease, an inedible animal fat commonly used by us in the production of biodiesel, has traded in a range of $0.0950 to $0.5250 based on the closing nearby futures prices on the CBOT. Historically, the price of animal fat has been affected by the amount of rendering volumes in the United States, as well as demand from other markets. If biodiesel production continues to increase in response to RFS2, we expect that more biodiesel producers will seek to use lower cost feedstocks, potentially increasing our costs of production. In addition, because the market for animal fat is less developed than markets for vegetable oils such as soybean oil, we generally are unable to enter into forward contracts at fixed prices. Further, the markets for used cooking oil and inedible corn oil are in their nascent stages.

The market and supply for used cooking oil as a feedstock for biodiesel is growing. The commercial supply of inedible corn oil is growing as more ethanol producers are installing corn oil extraction technology in their ethanol plants and are improving the yield of inedible corn oil they are able to extract from their distillers grains. However, inedible corn oil is not generally available in quantities sufficient to cover all of our operations. If more ethanol plants do not acquire and utilize corn oil extraction equipment, if extraction yields do not improve, or if ethanol plants are idled, we may not be able to obtain additional amounts of inedible corn oil for use in our production of biodiesel and may be forced to utilize higher cost feedstocks to meet increased demand, which may not be economical.

Loss of or reductions in tax incentives for biodiesel production or consumption may have a material adverse affect on industry revenues and operating margins.

The biodiesel industry has historically been substantially aided by federal and state tax incentives. Prior to RFS2, the biodiesel industry relied principally on these tax incentives to bring the price of biodiesel more in line with the price of petroleum-based diesel fuel to the end user. The most significant tax incentive program has been the federal blenders tax credit. The blenders tax credit provided a $1.00 refundable tax credit per gallon of pure biodiesel, or B100, to the first blender of biodiesel with petroleum-based diesel fuel. The blenders tax credit came into existence on January 1, 2005, had been continuously reinstated until it expired on December 31, 2009 and was re-enacted in December 2010, retroactively for all of 2010 and prospectively for 2011. The blenders tax credit expired again on December 31, 2011 and was again reinstated on January 2, 2013, retroactively for all of 2012 and prospectively for 2013, and expired again December 31, 2013. There is no assurance that it will be reinstated again. Unlike RFS2, the blenders tax credit has a direct effect on federal government spending and could be changed

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or eliminated as a result of changes in the federal budget policy. Although the blenders tax credit was reinstated for all of 2012, it was restated in January of 2013 and thus is reflected in our 2013 earnings. It is uncertain what action, if any, Congress may take with respect to reinstating the blenders tax credit or when such action might be effective. If Congress does not reinstate the credit, demand for our biodiesel and the price we are able to charge for our product may be significantly reduced, harming revenues and profitability. When the blenders tax credit expired on December 31, 2011, we experienced an industry-wide acceleration of gallons sold in the fourth quarter of 2011, which was further influenced by the ability of Obligated Parties to satisfy up to 20% of their current RVO with prior year RINs. We believe this increase in production at the end of the year resulted in a buildup of biodiesel inventories and reduced gallons sold in the first quarter of 2012. With the blenders credit set to expire at the end of 2013, the industry experienced a similar surge in biodiesel production in the fourth quarter of 2013. We believe it is likely that we will see reduced demand in the first quarter of 2014 as a result.

In addition, several states have enacted tax incentives for the use of biodiesel. For example, Illinois offers an exemption from the generally applicable 6.25% sales tax for biodiesel blends that incentivizes blending at 11% biodiesel, or B11. Like the federal blenders tax credit, the Illinois tax incentive program and the tax incentive programs of other state could be changed as a result of state budget considerations or otherwise. Reduction or elimination of such incentives could materially and adversely harm our revenues and profitability.

Risk management transactions could significantly increase our operating costs and working capital requirements and may not be effective.

In an attempt to partially offset the effects of volatile feedstock costs and biodiesel fuel prices, we may enter into contracts that establish market positions in feedstocks, such as inedible corn oil, used cooking oil, inedible animal fats and soybean oil, and related commodities, such as heating oil and ultra-low sulfur diesel, or ULSD. The financial impact of such market positions will depend on commodity prices at the time that we are required to perform our obligations under these contracts. Risk management arrangements will also expose us to the risk of financial loss in situations where the counterparty defaults on its contract or, in the case of exchange-traded or over-the-counter futures or options contracts, where there is a change in the expected differential between the underlying price in the contract and the actual prices paid or received by us. Risk management activities can themselves result in losses when a position is purchased in a declining market or a position is sold in a rising market. Changes in the value of these futures instruments are recognized in current income and may result in margin calls. We may also vary the amount of risk management strategies we undertake, or we may choose not to engage in risk management transactions at all. Further, our ability to reduce the risk of falling biodiesel prices and rising feedstock costs will be limited as currently there is no established futures market for biodiesel or the vast majority of our feedstocks, nor are fixed-price long-term contracts generally available. As a result, our results of operations and financial position may be adversely affected by increases in the price of feedstocks or decreases in the price of biodiesel that are not managed effectively.

One customer accounted for a meaningful percentage of revenues and a loss of this customer could have an adverse impact on our total revenues.

One customer, Pilot Travel Centers LLC, or Pilot, accounted for 16%, 36% and 23% of our total revenues in 2013, 2012 and 2011, respectively. Our agreements with Pilot have typically had a one-year term and our current agreement with Pilot expires December 31, 2014. In the event we lose Pilot as a customer or Pilot significantly reduces the volume of biodiesel it buys from us, it could be difficult to replace the lost revenues in the short term and potentially over an extended period, and our profitability and cash flow could be materially harmed. Past news reports indicated that Pilot was the subject of a federal criminal investigation involving alleged fraud related to customer diesel fuel rebates. REG cannot determine what effect, if any, this may have on its future business relationship with Pilot.

Our business is primarily dependent upon one product. As a consequence, we may not be able to adapt to changing market conditions or endure any decline in the biodiesel industry.

Our revenues are currently generated almost entirely from the production and sale of biodiesel, with glycerin and fatty acid sales and the operations of our Services segment representing only a small portion of revenues. To date, our renewable chemicals business has not generated any revenues. Our reliance on biodiesel means that we may not be able to adapt to changing market conditions or to withstand any significant decline in the size or profitability of the biodiesel industry. For example, in 2009 and the beginning of 2010, we were required to periodically idle our plants due to insufficient demand at profitable price points which materially affected our revenues. If we are required to idle our plants in the future or are unable to adapt to changing market conditions, our revenues and results of operations may be materially harmed.

Technological advances and changes in production methods in the biodiesel industry could render our plants obsolete and adversely affect our ability to compete.

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It is expected that technological advances in biodiesel production methods will continue to occur and new technologies for biodiesel production may develop. Advances in the process of converting oils and fats into biodiesel could allow our competitors to produce biodiesel faster and more efficiently and at a substantially lower cost. If we are unable to adapt or incorporate technological advances into our operations, our production facilities could become less competitive or obsolete. Further, it may be necessary for us to make significant expenditures to acquire any new technology and retrofit our plants in order to incorporate new technologies and remain competitive. There is no assurance that third-party licenses for any proprietary technologies that we would need access to in order to remain competitive for either existing processes or new technology will be available to us on commercially reasonable terms or that any new technologies could be incorporated into our plants. In order to execute our strategy to expand into the production of renewable chemicals, additional advanced biofuels, next generation feedstocks and related renewable products, we may need to acquire licenses or other rights to technology from third parties. We can provide no assurance that we will be able to obtain such licenses or rights on favorable terms. If we are unable to obtain, implement or finance new technologies, our production facilities could be less efficient than our competitors, we may not be able to successfully execute our strategy and our results of operations could be substantially harmed.

If we are unable to respond to changes in ASTM or customer standards, our ability to sell biodiesel may be harmed.

We currently produce biodiesel to conform to or exceed standards established by ASTM. ASTM standards for biodiesel and biodiesel blends may be modified in response to new observations from the industries involved with diesel fuel. New tests or more stringent standards may require us to make additional capital investments in, or modify, plant operations to meet these standards. In addition, some biodiesel customers have developed their own biodiesel standards which are stricter than the ASTM standards. If we are unable to meet new ASTM standards or our biodiesel customers’ standards cost effectively or at all, our production technology may become obsolete, and our ability to sell biodiesel may be harmed, negatively impacting our revenues and profitability.

Increases in our transportation costs or disruptions in our transportation services could have a material adverse effect on our business.

Our business depends on transportation services to deliver our products to our customers and to deliver raw materials to us. The costs of these transportation services are affected by the volatility in fuel prices, such as those caused by recent geopolitical and economic events. For example, in 2012, the market rates of leasing new rail cars nearly doubled as a result of increased demand to move domestically drilled crude oil from new supply fields in the upper Midwest to various refineries. We have not been able in the past, and may not be able in the future, to pass along part or all of any of these increases to customers. If we continue to be unable to increase our prices as a result of increased fuel costs charged to us by transportation providers, our gross margins may be materially adversely affected.

If any transportation providers fail to deliver raw materials to us in a timely manner, we may be unable to manufacture products on a timely basis. Shipments of products and raw materials may be delayed due to weather conditions, strikes or other events. Any failure of a third-party transportation provider to deliver raw materials or products in a timely manner could harm our reputation, negatively affect our customer relationships and have a material adverse effect on our business, financial condition and results of operations.

We are dependent upon our key management personnel and critical talent whereby the loss of any of these persons could adversely affect our results of operations.

We are highly dependent upon key members of our management team along with critical talent possessing unique technical skills for the execution of our business plan. We believe that our future success is highly dependent on the contributions of these key employees. There can be no assurance that any individual will continue in his or her capacity for any particular period of time. The loss of any of these key employees could delay or prevent the achievement of our business objectives and have a material adverse effect upon our results of operations and financial position.

We and certain subsidiaries have indebtedness, which subjects us to potential defaults, could adversely affect our ability to raise additional capital to fund our operations and limits our ability to react to changes in the economy or the biodiesel industry.

At December 31, 2013, our total long-term debt was $27.15 million. This includes consolidated long-term debt owed by our Variable Interest Entities, or VIEs, including 416 South Bell, LLC, or Bell, LLC. In December 2011, certain of our subsidiaries entered into a revolving credit agreement with a bank group and Wells Fargo Capital Finance, LLC, which we refer to as the Wells Fargo Revolver. At December 31, 2013, there was $10.99 million outstanding under our lines of credit, all of which we guarantee.

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All of the agreements for our indebtedness contain financial covenants the breach of which would result in an event of default by us or our subsidiary obligor. For a discussion of the financial covenants related to our debt agreements, see “Management’s discussion and analysis of financial condition and results of operations—Liquidity.”

Our subsidiaries are required annually to pay a certain portion of our excess cash flow at our Danville and Newton facilities to their respective lenders, which reduces the cash flow that we receive from these facilities.

Our indebtedness could:

• require us to dedicate a substantial portion of our cash flow from operations to payments of principal, interest on, and other fees related to such indebtedness, thereby reducing the availability of our cash flow to fund working capital and capital expenditures, and for other general corporate purposes;

• increase our vulnerability to general adverse economic and biodiesel industry conditions;

• limit our flexibility in planning for, or reacting to, changes in our business and the biodiesel industry, which may place us at a competitive disadvantage compared to our competitors that have less debt; and

• limit among other things, our ability to borrow additional funds.

We might require additional capital to support business growth, and this capital might not be available on acceptable terms, or at all.

We intend to continue to make investments to support our business growth and may require additional funds to respond to business challenges, including the need to develop our renewable chemicals business or expand or enhance our biodiesel operations or acquire complementary businesses and technologies. Accordingly, we may need to engage in equity or debt financing to secure additional funds. If we raise additional funds through further issuances of equity or convertible debt securities, our stockholders could suffer significant dilution, and any new equity securities we issue could have rights, preferences and privileges superior to those of holders of our common stock. Any debt financing could involve restrictive covenants, which may restrict our flexibility in operating our business and make it more difficult for us to obtain additional capital and to pursue business opportunities, including potential acquisitions. We may not be able to obtain additional financing on terms favorable to us, if at all. If we are unable to obtain adequate financing on terms satisfactory to us, when we require it, our ability to continue to support our business growth and to respond to business challenges could be significantly limited, and our business, operating results, financial condition and prospects could be adversely affected.

Our success depends on our ability to manage our growing and changing operations.

Since our formation, our business has grown significantly in size and complexity. This growth has placed, and is expected to continue to place, significant demands on our management, systems, internal controls and financial and physical resources. In addition, we expect that we will need to further develop our financial and managerial controls and reporting systems to accommodate future growth. This will require us to incur expenses related to hiring additional qualified personnel, retaining professionals to assist in developing the appropriate control systems and expanding our information technology infrastructure. Our inability to manage growth effectively could have a material adverse effect on our results of operations, financial position and cash flows.

We have generated no revenue from sales of renewable chemicals to date and we face significant challenges to developing this business.

We have only recently entered the market for renewable chemicals with our acquisition of LS9 in January 2014. To date, we have not generated any revenues from this business which is still at a pre-commercial stage. In order to generate revenue from our renewable chemicals, we must be able to produce sufficient quantities of our products, which we have not done to date.

In entering this market, we intend to sell renewable chemicals as an alternative to chemicals currently in use, and in some cases the chemicals that we seek to replace have been used for many years. The potential customers for our renewable chemical products generally have well developed manufacturing processes and arrangements with suppliers of the chemical components of their products and may resist changing these processes and components. These potential customers frequently impose lengthy and complex product qualification procedures on their suppliers. Factors that these potential customers consider during the product qualification process include consumer preference, manufacturing considerations such as process changes and capital and other costs associated with transitioning to alternative components, supplier operating history, regulatory issues, product liability and other factors, many of which are unknown to, or not well understood by, us. Satisfying these processes may take many months or years. If we are unable to convince these potential customers that our products are comparable to the chemicals that they currently use or that the use of our products produces benefits to them, we will not be successful in these markets and our business will be adversely affected. Additionally, in contrast to the tax incentives relating to biofuels, tax

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credits and subsidies are not currently available in the United States for consumer products or chemical companies who use renewable chemical products. We do not expect meaningful revenue from our sale of renewable chemicals in the near term.

We may encounter difficulties in effectively integrating the businesses we acquire.

We may face significant challenges in effectively integrating entities and businesses that we acquire, including our acquisition of substantially all of LS9, Inc.'s, or LS9, assets in January 2014, as well as our contemplated acquisition of substantially all of Syntroleum Corporation's, or Syntroleum, assets and we may not realize the benefits anticipated from such acquisitions.  Achieving the anticipated benefits of our acquired businesses will depend in part upon whether we can integrate our businesses in an efficient and effective manner.  Our integration of acquired businesses involves a number of risks, including:

• difficulty in integrating the operations and personnel of the acquired company;

• difficulty in effectively integrating the acquired technologies, products or services with our current technologies, products or services;

• demands on management related to the increase in our size after the acquisition;

• the diversion of management’s attention from daily operations to the integration of acquired businesses and personnel;

• failure to achieve expected synergies and costs savings;

• difficulties in the assimilation and retention of employees;

• difficulties in the assimilation of different cultures and practices, as well as in the assimilation of broad and geographically dispersed personnel and operations;

• difficulties in the integration of departments, systems, including accounting systems, technologies, books and records and procedures, as well as in maintaining uniform standards and controls, including internal control over financial reporting, and related procedures and policies;

• incurring acquisition-related costs or amortization costs for acquired intangible assets that could impact our operating results;

• the need to fund significant working capital requirements of any acquired production facilities;

• potential failure of the due diligence processes to identify significant problems, liabilities or other shortcomings or challenges of an acquired company or technology, including but not limited to, issues with the acquired company’s intellectual property, product quality, environmental liabilities, data back-up and security, revenue recognition or other accounting practices, employee, customer or partner issues or legal and financial contingencies;

• exposure to litigation or other claims in connection with, or inheritance of claims or litigation risk as a result of, an acquisition, including but not limited to, claims from terminated employees, customers, former stockholders or other third parties; and

• incurring significant exit charges if products or services acquired in business combinations are unsuccessful.

We have three partially constructed plants, one non-operational plant, and planned upgrades to our operating plants, each of which would require capital that we may not be able to raise and that may result in an impairment that could negatively impact our financial position, results of operations and future cash flows.

We have three partially constructed plants, one near New Orleans, Louisiana, one in Emporia, Kansas and one in Clovis, New Mexico and one non-operational plant near Atlanta, Georgia. We may choose to invest approximately $145 to $160 million in the aggregate, excluding working capital requirements, before these four plants would be able to commence production. Our Clovis plant is currently being operated as a terminal facility. In order to complete construction these facilities as planned, we will require additional capital. In November 2012, we acquired the above mentioned biodiesel facility near Atlanta, Georgia, which had been idled prior to our acquisition and will remain so until certain repairs or upgrades are made. While we intend to finance certain upgrades to our existing facilities from our cash flow from operations, we will need to raise significant capital to complete construction of the three partially constructed or non-operational facilities and to fund related working capital requirements. It is uncertain when or if financing will be available. It is also likely that the terms of any project financing would include customary financial and other covenants restricting our project subsidiaries, including restrictions on the ability to make distributions, to guarantee indebtedness and to incur liens on the plants of such subsidiaries. We also may engage in acquisitions of assets or facilities in the future that require significant investment to complete or operate including our contemplated acquisition of substantially all of the assets of Syntroleum, which assets include a 50% membership interest in Dynamic Fuels, which owns a currently idled renewable diesel facility in Geismar, Louisiana. If we are unable to obtain such capital on satisfactory terms, or if such capital is otherwise unavailable, or if we encounter cost overruns on these projects such that we have insufficient capital, we may have to postpone completion of these projects indefinitely, which may adversely affect our ability to implement our strategy and our future revenues and future cash flows.

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We may not successfully identify and complete acquisitions and other strategic relationships on favorable terms in order to execute our strategy to grow and diversify our business.

We regularly review domestic and international acquisitions of biofuel production facilities and have acquired most of our facilities from third parties. However, we may be unable to identify suitable acquisition candidates in

the future. Even if we identify appropriate acquisition candidates, we may be unable to complete such acquisitions on favorable terms, if at all. If we are unable to successfully acquire other businesses or facilities, we may not be able to grow our business as planned.

In addition, one of our strategic goals is to expand our biodiesel production capabilities into international markets. In the event we expand our operations into international markets through acquisitions or otherwise, we may be exposed to additional risks, including unexpected changes in foreign laws and regulations, political and economic instability, challenges in managing foreign operations, increased costs to adapt our systems and practices to those used in foreign countries, export duties, currency fluctuations and restrictions, tariffs and other trade barriers, and the burdens of complying with a wide variety of foreign laws, each of which could have a material adverse effect on our business, financial condition, results of operations and liquidity.

We intend to pursue strategic initiatives to diversify our business that will require significant funding and management attention and these initiatives may not be successful.

We are seeking opportunities to diversify our product lines, as a commercialization partner for companies engaged in the development of new advanced biofuels, by using our biorefinery platform to produce renewable chemicals from bio-mass feedstocks and by entering entirely new industries through acquisitions or otherwise, including through our recent acquisition of substantially all the assets of LS9 in January 2014 and the contemplated acquisition of substantially all the assets of Syntroleum's later this year. There is no assurance that new technologies capable of economically producing advanced biofuels will be developed, that the developers of these technologies will select us as their commercialization partner or that the terms of any such collaborative arrangement will be favorable to us. Further, the renewable chemicals market is underdeveloped. Any chemicals that we produce from renewable sources may not prove to be as effective as chemicals produced from petroleum or other sources and, regardless of their effectiveness, renewable chemicals may not be accepted in the chemical marketplace. Furthermore, we may not be able to acquire companies in different industries at attractive valuations or at all. These strategic initiatives will require significant funding and management attention, and if we are not successful in implementing them, our financial condition and results of operations may be harmed.

Our business is subject to seasonal fluctuations, which are likely to cause our revenues and operating results to fluctuate.

Our operating results are influenced by seasonal fluctuations in the price of and demand for biodiesel. Our sales tend to decrease during the winter season due to perceptions that biodiesel will not perform adequately in colder weather. Colder seasonal temperatures can cause the higher cloud point biodiesel we make from inedible animal fats to become cloudy and eventually gel at a higher temperature than petroleum-based diesel or lower cloud point biodiesel made from soybean, canola, used cooking oil or inedible corn oil. Such gelling can lead to plugged fuel filters and other fuel handling and performance problems for customers and suppliers. Reduced demand in the winter for our higher cloud point biodiesel may result in excess supply of such higher cloud point biodiesel and lower prices for such higher cloud point biodiesel. In addition, most of our production facilities are located in colder Midwestern states and our costs of shipping biodiesel to warmer climates generally increase in cold weather months.

In addition, our RINs also have an element of seasonality to them. Since only 20% of an Obligated Party’s annual RVO can be satisfied by prior year RINs, most RINs must come from biofuel produced or imported during the RVO year. As a result, one would expect RIN prices to decrease as the calendar year progresses if the RIN market is oversupplied compared to that year’s RVO and increase if it is undersupplied. For example, in 2012, which had a RVO for biomass-based diesel of one billion gallons, biomass-based diesel RIN prices, as reported by OPIS, began to decrease in September when biomass-based diesel RIN generation neared the equivalent of 900 million gallons, as reported by EMTS. Similarly, in September of 2013 when biomass-based diesel RIN generation reached approximately 960 million gallons compared to a 2013 RVO of 1.28 billion gallons, biomass-based diesel RIN prices, as reported by OPIS, began to decline. As a result of these seasonal fluctuations, comparisons of operating measures between consecutive quarters may not be as meaningful as comparisons between longer reporting periods.

Failure to comply with governmental regulations, including EPA requirements relating to RFS2, could result in the imposition of penalties, fines, or restrictions on our operations and remedial liabilities.

The biodiesel industry is subject to extensive federal, state and local laws and regulations related to the general population’s health and safety and compliance and permitting obligations, including those related to the use, storage, handling, discharge,

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emission and disposal of municipal solid waste and other waste, pollutants or hazardous substances, discharges, air and other emissions, as well as land use and development. Existing laws also impose obligations to clean up contaminated properties or to pay for the cost of such remediation, often upon parties that did not actually cause the contamination. Compliance with these laws, regulations and obligations could require substantial capital expenditures. Failure to comply could result in the imposition of penalties, fines or restrictions on operations and remedial liabilities. These costs and liabilities could adversely affect our operations.

Changes in environmental laws and regulations occur frequently, and any changes that result in more stringent or costly waste handling, storage, transport, disposal or cleanup requirements could require us to make significant expenditures to attain and maintain compliance and may otherwise have a material adverse effect on our business in general and on our results of operations, competitive position or financial condition. We are unable to predict the effect of additional environmental laws and regulations which may be adopted in the future, including whether any such laws or regulations would significantly increase our cost of doing business or affect our operations in any area.

Under certain environmental laws and regulations, we could be held strictly liable for the removal or remediation of previously released materials or property contamination regardless of whether we were responsible for the release or contamination, or if current or prior operations were conducted consistent with accepted standards of practice. Such liabilities can be significant and, if imposed, could have a material adverse effect on our financial condition or results of operations.

In addition to the regulations mentioned above, we are subject to various laws and regulations related to RFS2, most significantly regulations related to the generation and dissemination of RINs. These regulations are highly complex and evolving, requiring us to periodically update our compliance systems. For example, in 2008, we unintentionally generated duplicate RINs as a result of a change to the software we use to manage RIN generation. We voluntarily reported this violation to the EPA and followed EPA guidance in correcting the issue promptly. In 2011, we entered into an administrative settlement agreement with the EPA regarding this violation and paid a fine for this inadvertent violation. Any violation of these regulations by us, inadvertently or otherwise, could result in significant fines and harm our customers’ confidence in the RINs we issue, either of which could have a material adverse effect on our business. For a detailed description of RINs, see “Business—Government Programs Favoring Biodiesel Production and Use—Renewable Identification Numbers.”

In response to certain cases of RIN fraud whereby biodiesel producers were selling biomass-based diesel RINs without having produced the required renewable fuel, the EPA is in the process of implementing a quality assurance program for RIN compliance. Compliance with these or any new regulations or Obligated Party verification procedures could require significant expenditures to attain and maintain compliance. Failure to comply could result in the imposition of penalties, fines, restrictions on operations, loss of customers and remedial liabilities. These costs and liabilities may have a material adverse effect on our business in general and on our results of operations, competitive position or financial condition. We are unable to predict the effect of any additional regulatory or customer requirements which may be adopted in the future, including whether any such regulations or verification procedures would significantly increase our cost of doing business or affect our operations in any area.

Our business may suffer if we are unable to attract or retain talented personnel.

Our success depends on the abilities, expertise, judgment, discretion, integrity, and good faith of our management and employees to manage the business and respond to economic, market and other conditions. We have a relatively small management team and employee base, and the inability to attract suitably qualified replacements or additional staff could adversely affect our business. No assurance can be given that our management team or employee base will continue their employment, or that replacement personnel with comparable skills could be found. If we are unable to attract and retain key personnel and additional employees, our business may be adversely affected.

If we fail to maintain effective internal control over financial reporting, we might not be able to report our financial results accurately or prevent fraud; in that case, our stockholders could lose confidence in our financial reporting, which would harm our business and could negatively impact the value of our stock.

Effective internal controls are necessary for us to provide reliable financial reports and prevent fraud. The process of maintaining our internal controls may be expensive and time consuming and may require significant attention from management. Although we have concluded as of December 31, 2013 that our internal control over financial reporting provides reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles, because of its inherent limitations, internal control over financial reporting may not prevent or detect fraud or misstatements. Failure to implement required new or improved controls, or difficulties encountered in their implementation, could harm our results of operations or cause us to fail to meet our reporting obligations. If we or our independent registered public accounting firm discover a material weakness, the disclosure of that fact could harm the value of our stock and our business.

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A natural disaster, leak, fire or explosion at any of our production plants or customer’s facilities could increase our costs and liabilities.

Because biodiesel and some of its inputs and outputs are combustible and/or flammable, a leak, fire or explosion may occur at a plant or customer’s facility which could result in damage to the plant and nearby properties, injury to employees and others, and interruption of operations. In addition, our Houston facility, due to its coastal location, is vulnerable to hurricanes, which may cause plant damage, injury to employees and others and interruption of operations and all of our plants could incur damage from other natural disasters. A majority of our facilities are also located in the Midwest, which is subject to tornado activity. Furthermore, our REG Life Sciences, LLC, or REG Life Sciences, research and development center is in South San Francisco, California, which is subject to earthquakes. If any of the foregoing events occur, we may incur significant additional costs including, among other things, loss of profits due to unplanned temporary or permanent shutdowns of our facilities, clean-up costs, liability for damages or injuries, legal expenses, and reconstruction expenses, which would seriously harm our results of operations and financial condition.

Our insurance may not protect us against our business and operating risks.

We maintain insurance for some, but not all, of the potential risks and liabilities associated with our business. For some risks, we may not obtain insurance if we believe the cost of available insurance is excessive relative to the risks presented. As a result of market conditions, premiums and deductibles for certain insurance policies can increase substantially and, in some instances, certain insurance policies may become unavailable or available only for reduced amounts of coverage. As a result, we may not be able to renew our existing insurance policies or procure other desirable insurance on commercially reasonable terms, if at all. Although we intend to maintain insurance at levels we believe are appropriate for our business and consistent with industry practice, we will not be fully insured against all risks. In addition, pollution, environmental risks and the risk of natural disasters generally are not fully insurable. Losses and liabilities from uninsured and underinsured events and delay in the payment of insurance proceeds could have a material adverse effect on our financial condition and results of operations.

Confidentiality agreements with employees and others may not adequately prevent disclosures of confidential information, trade secrets and other proprietary information.

We rely in part on trade secret protection to protect our confidential and proprietary information and processes. However, trade secrets are difficult to protect. We have taken measures to protect our trade secrets and proprietary information, but these measures may not be effective. For example, we require new employees and consultants to execute confidentiality agreements upon the commencement of their employment or consulting arrangement with us. These agreements generally require that all confidential information developed by the individual or made known to the individual by us during the course of the individual’s relationship with us be kept confidential and not disclosed to third parties. These agreements also generally provide that knowhow and inventions conceived by the individual in the course of rendering services to us are our exclusive property. Nevertheless, these agreements may be breached, or may not be enforceable, and our proprietary information may be disclosed. Further, despite the existence of these agreements, third parties may independently develop substantially equivalent proprietary information and techniques. Accordingly, it may be difficult for us to protect our trade secrets. Costly and time-consuming litigation could be necessary to enforce and determine the scope of our proprietary rights, and failure to obtain or maintain trade secret protection could adversely affect our competitive business position.

Moreover, we cannot assure you that our technology does not infringe upon any valid claims of patents that other parties own. In the future, if we are found to be infringing on a patent owned by a third party, we might have to seek a license from such third party to use the patented technology. We cannot assure you that, if required, we would be able to obtain such a license on terms acceptable to us, if at all. If a third party brought a legal action against us or our licensors, we could incur substantial costs in defending ourselves, and we cannot assure you that such an action would be resolved in our favor. If such a dispute were to be resolved against us, we could be subject to significant damages.

We are a holding company and there are limitations on our ability to receive dividends and distributions from our subsidiaries.

All of our principal assets, including our biodiesel production facilities, are owned by subsidiaries and some of these subsidiaries are subject to loan covenants that generally restrict them from paying dividends, making distributions or making loans to us or to any other subsidiary. These limitations will restrict our ability to repay indebtedness, finance capital projects or pay dividends to stockholders from our subsidiaries’ cash flows from operations.

In the event we enter into new construction contracts, we may be exposed to a variety of risks that could affect our ability to realize profit.

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While our construction services management business has had only limited external operations over the last three years, we intend to continue to pursue opportunities to provide these services. Substantially all of our revenues from our new facility construction services business have been derived from fixed unit price contracts. Fixed unit price contracts require us to perform the contract for a fixed unit price irrespective of our actual costs. As a result, we realize a profit on these contracts only if we and our subcontractors successfully estimate our costs and then successfully control actual costs and avoid cost overruns. Further, we have historically subcontracted substantially all of our construction work to various engineering and construction companies on a time and materials, rather than fixed, basis. As a result, we have less control over the largest component of our plant construction costs and the risk of cost overruns generally falls on us rather than our subcontractors. If we or our subcontractors do not perform a contract within cost estimates, then cost overruns may cause us to incur losses or cause the contract not to be as profitable as we initially expected. This, in turn, could negatively affect our cash flow, earnings and financial position. As we have acquired assets and begun consolidating the industry, our construction services management business has almost exclusively been focused on internal intercompany projects.

If we or our subcontractors perform extra or change order work that is not approved by the customer in advance we may have a dispute with the customer over whether the work performed is beyond the scope of the work included in the original project plans and specifications or, if the customer agrees that the work performed qualifies as extra work, the price that the customer is willing to pay for the extra work. These disputes may result in us not receiving payment for all or a significant portion of work that we or our subcontractors have performed. Even where the customer agrees to pay for the extra work, we may be required to fund the cost of that work for a lengthy period of time until the change order is approved and paid by the customer. To the extent actual recoveries with respect to change orders or amounts subject to contract disputes or claims are less than the estimates used in our financial statements, the amount of any shortfall will reduce our revenues and profits, and this could have a material adverse effect on our working capital and results of operations.

Risks Related to the Biodiesel Industry

The market price of biodiesel is influenced by the price of petroleum-based distillate fuels, such as ultra-low sulfur diesel, and decreases in the price of petroleum-based distillate fuels or RIN values would very likely decrease the price we can charge for our biodiesel, which could harm our revenues and profitability.

Historically, biodiesel prices have been strongly correlated to petroleum-based diesel prices and in particular ULSD, regardless of the cost of producing biodiesel itself. We market our biofuel as an alternative to petroleum-based fuels. Therefore, if the price of petroleum-based diesel falls, the price of biodiesel could decline, and we may be unable to produce products that are an economically viable alternative to petroleum-based fuels. Petroleum prices are volatile due to global factors, such as the impact of wars, political uprisings, OPEC production quotas, worldwide economic conditions, changes in refining capacity and natural disasters. Additionally, demand for liquid transportation fuels, including biodiesel, is impacted by economic conditions.

Just as a small reduction in the real or anticipated supply of crude oil can have a significant upward impact on the price of petroleum-based fuels, a perceived reduction of such threats can result in a significant reduction in petroleum-based fuel prices. A reduction in petroleum-based fuel prices may have a material adverse affect on our revenues and profits if such price decrease reduces the price we are able to charge for our biodiesel.

There was a sharp decline in RIN prices during third quarter 2012 that carried through the end of 2012. During this period, RIN pricing declined from $1.17 per RIN at June 30, 2012 to $0.64 per RIN at December 31, 2012, as reported by OPIS, which contributed to the decline in price of biodiesel. RIN prices also declined sharply from $1.09 per RIN on July 1, 2013 to $0.35 per RIN at December 31, 2013, as reported by OPIS. A reduction in RIN values, such as those experienced in the second half of 2012 and 2013, may have a material adverse affect on our revenues and profits as such price decrease reduce the price we are able to charge for our biodiesel.

We operate in a highly competitive industry and competition in our industry would increase if new participants enter the biodiesel or biomass-based diesel business.

We operate in a very competitive environment. The biodiesel industry is primarily comprised of smaller entities that engage exclusively in biodiesel production, large integrated agribusiness companies that produce biodiesel along with their soybean crush businesses and increasingly, integrated petroleum companies. We face competition for capital, labor, feedstocks and other resources from these companies. In the United States, we compete with soybean processors and refiners, including Archer-Daniels-Midland Company, LLC, Cargill, Inc. and Louis Dreyfus Commodities. In addition, petroleum refiners are increasingly entering into biodiesel and renewable diesel production, includes Neste Oil with approximately 600 million gallons of global renewable diesel production capacity in Asia and Europe and Valero Energy Corporation with its Diamond Green joint venture renewable diesel plant. These and other competitors that are divisions of larger enterprises may have greater financial resources than we do. We also have many smaller competitors. If our competitors consolidate or otherwise grow and we are unable to similarly increase our scale, our business and prospects may be significantly and adversely affected.

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In addition, petroleum companies and diesel retailers form the primary distribution networks for marketing biodiesel through blended petroleum-based diesel. If these companies increase their direct or indirect biodiesel and renewable diesel production, there will be less need to purchase biodiesel from independent biodiesel producers like us. Such a shift in the market would materially harm our operations, cash flows and financial position.

The development of alternative fuels and energy sources may reduce the demand for biodiesel, resulting in a reduction in our revenues and profitability.

The development of alternative fuels, including a variety of energy alternatives to biodiesel has attracted significant attention and investment. Neste Oil operates four renewable diesel plants: a 240 million gallon per year plant in Singapore, a 240 million gallon per year plant in Rotterdam, Netherlands, and two 60 million gallon per year plants in Porvoo, Finland. Diamond Green Diesel, LLC has completed construction and commenced operations of its 137 million gallon per year renewable diesel plant in Norco, Louisiana in 2013. Under RFS2, renewable diesel made from biomass meets the definition of biomass-based diesel and thus is eligible, along with biodiesel, to satisfy the RFS2 biomass-based diesel requirement described in “Business—Government Programs Favoring Biodiesel Production and Use.” Furthermore, under RFS2, renewable diesel may receive up to 1.7 RINs per gallon, whereas biodiesel currently receives 1.5 RINs per gallon. For a detailed description of RINs and RIN values, see “Business—Government Programs Favoring Biodiesel Production and Use—Renewable Identification Numbers.” As the value of RINs increases, this 0.2 RIN advantage may make renewable diesel more cost-effective, both as a petroleum-based diesel substitute and for meeting RFS2 requirements. If renewable diesel proves to be more cost-effective than biodiesel, our revenues and results of operations would be adversely impacted.

In addition, the EPA may allow other fuels to satisfy the RFS2 requirements and allow RINs to be generated upon the production of these fuels. The EPA recently adopted regulations to amend the definition of “Home Heating Oil” under RFS2, which expands the scope of fuels eligible to generate RINs. This will increase competition within heating oil markets by introducing fuels that could generate more RINs (i.e., cellulosic diesel) and may be more cost competitive than biodiesel utilized as heating oil.

The biodiesel industry will also face increased competition resulting from the advancement of technology by automotive, industrial and power generation manufacturers which are developing more efficient engines, hybrid engines and alternative clean power systems. Improved engines and alternative clean power systems offer a technological solution to address increasing worldwide energy costs, the long-term availability of petroleum reserves and environmental concerns. If and when these clean power systems are able to offer significant efficiency and environmental benefits and become widely available, the biodiesel industry may not be able to compete effectively with these technologies and government requirements for the use of biodiesel may not continue.

The development of alternative fuels and renewable chemicals also puts pressure on feedstock supply and availability to the biodiesel industry. If these emerging technologies compete with biodiesel for feedstocks, are more profitable or have greater governmental support than biodiesel does, then the biodiesel industry may have difficulty in procuring the feedstocks necessary to be successful.

Increased industry-wide production of biodiesel could have a negative effect on our margins and there remains excess production capacity in the biodiesel industry.

According to EPA EMTS data, approximately 1.1 billion gallons of biomass-based diesel RINs were generated in the United States in 2011, 1.14 billion gallons were generated in 2012, and 1.78 billion gallons were generated in 2013. Such production was in excess of the 800 million gallon RFS2 requirement for 2011, the one billion gallon requirement for 2012, and the 1.28 billion gallon requirement for 2013. Should biodiesel production continue to remain above RFS2 required volumes, the resulting supply could put downward pressure on our margins for biodiesel, negatively affecting our profitability. Under RFS2, Obligated Parties are entitled to satisfy up to 20% of their annual volume requirement for any given year with gallons used in the previous year so long as they are in compliance with the RFS2.

EMTS data indicates that Obligated Parties may have carried over approximately 200 million gallons of biomass-based diesel RINs from 2012 into 2013. As an illustrative example, according to EMTS data, biomass-based diesel was produced and imported into the U.S. at average rate of 190 million gallons per month for October. November and December of 2013, the last three months of available EMTS data. In 2013, 1.78 billion gallons of biomass-based diesel RINs were generated. Adding the 2012 carry-over to the 2013 RIN generation, would result in an estimated total biomass-based diesel RIN availability of approximately 2.04 billion gallons, which is approximately 760 million gallons more than required to satisfy the 1.28 billion gallon 2013 biomass-based diesel RVO. The proposed 2014 biomass-based diesel RVO is 1.28 billion gallons, and if adopted would limit the 2014 carryover to 256 million gallons, or 20% of 1.28 billion, thus resulting in an excess supply of 504 million gallons of biomass-based diesel RINs. These excess RINs can be used to fulfill the advanced biofuel RVO or the renewable fuel RVO. If the volume of excess biomass-based diesel RINs exceeds the volume the Obligated Parties desire to use to fulfill their

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advanced biofuel and renewable fuel requirements, the demand for and price of our biodiesel and biomass-based diesel RINs may be reduced, which could harm its revenues and cash flows. Many biodiesel plants in the United States do not currently operate, and of those that do, many do not operate at full capacity. According to the National Biodiesel Board, or NBB, as of September 12, 2012, 2.7 billion gallons per year of biodiesel production capacity in the United States were registered under the RFS2 program by NBB members. In addition to this amount, several hundred more gallons of U.S. based biomass-based diesel production capacity was registered by non-NBB members and another 1.2 billion gallons of biomass-based diesel production was registered by foreign producers. Furthermore, plants under construction and expansion in the United States as of December 31 2011, if completed, could add an additional several hundred million gallons of annual biodiesel production capacity. The annual production capacity of existing plants and plants under construction far exceeds both historic consumption of biodiesel in the United States and required consumption under RFS2. If this excess production capacity was fully utilized for the U.S. market, it would increase competition for our feedstocks, increase the volume of biomass-based diesel on the market and may reduce biodiesel gross margins, harming our revenues and profitability.

The European Commission has imposed anti-dumping and countervailing duties on biodiesel blends imported into Europe, which have effectively eliminated our ability to sell those biodiesel blends in Europe.

In March 2009, as a response to the federal blenders tax credit, the European Commission imposed anti-dumping and anti-subsidy tariffs on biodiesel produced in the United States. These tariffs have effectively eliminated European demand for 20% biodiesel blends, or B20, or higher imported from the United States. The European Commission has extended these tariffs through 2014. In May 2011, the European Commission imposed similar anti-dumping and countervailing duties on biodiesel blends below B20. These duties significantly increase the price at which we and other United States biodiesel producers will be able to sell such biodiesel blends in European markets, making it difficult or impossible to compete in the European biodiesel market. These anti-dumping and countervailing duties therefore decrease the demand for biodiesel produced in the United States and increase the supply of biodiesel available in the United States market. Such market dynamics may negatively impact our revenues and profitability.

If automobile manufacturers and other industry groups express reservations regarding the use of biodiesel, our ability to sell biodiesel will be negatively impacted.

Because it is a relatively new product compared with petroleum diesel, research on biodiesel use in automobiles is ongoing. While most heavy duty automobile manufacturers have approved blends of up to 20% biodiesel, some industry groups have recommended that blends of no more than 5% biodiesel be used for automobile fuel due to concerns about fuel quality, engine performance problems and possible detrimental effects of biodiesel on rubber components and other engine parts. Although some manufacturers have encouraged use of biodiesel fuel in their vehicles, cautionary pronouncements by other manufacturers or industry groups may impact our ability to market our biodiesel.

Perception about “food vs. fuel” could impact public policy which could impair our ability to operate at a profit and substantially harm our revenues and operating margins.

Some people believe that biodiesel may increase the cost of food, as some feedstocks such as soybean oil used to make biodiesel can also be used for food products. This debate is often referred to as “food vs. fuel.” This is a concern to the biodiesel industry because biodiesel demand is heavily influenced by government policy and if public opinion were to erode, it is possible that these policies would lose political support. These views could also negatively impact public perception of biodiesel. Such claims have led some, including members of Congress, to urge the modification of current government policies which affect the production and sale of biofuels in the United States.

Concerns regarding the environmental impact of biodiesel production could affect public policy which could impair our ability to operate at a profit and substantially harm our revenues and operating margins.

Under the EISA, the EPA is required to produce a study every three years of the environmental impacts associated with current and future biofuel production and use, including effects on air and water quality, soil quality and conservation, water availability, energy recovery from secondary materials, ecosystem health and biodiversity, invasive species and international impacts. The first such triennial report was released in February 2012. The 2012 report concludes that (1) the extent of negative impacts to date are limited in magnitude and are primarily associated with the intensification of corn production; (2) whether future impacts are positive or negative will be determined by the choice of feedstock, land use change, cultivation and conservation practices; and (3) realizing potential benefits will require implementation and monitoring of conservation and best management practices, improvements in production efficiency, and implementation of innovative technologies at commercial scales. Should future EPA triennial studies, or other analyses find that biofuel production and use has resulted in, or could in the future result in, adverse environmental impacts, such findings could also negatively impact public perception of biofuel and acceptance of biofuel as an alternative fuel, which also could result in the loss of political support.

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To the extent that state or federal laws are modified or public perception turns against biodiesel, use requirements such as RFS2 and state tax incentives may not continue, which could materially harm our ability to operate profitably.

Problems with product performance, in cold weather or otherwise, could cause consumers to lose confidence in the reliability of biodiesel which, in turn, would have an adverse impact on our ability to successfully market and sell biodiesel.

Concerns about the performance of biodiesel could result in a decrease in customers and revenues and an unexpected increase in expenses. Biodiesel typically has a higher cloud point than petroleum-based diesel. The cloud point is the temperature below which a fuel exhibits a noticeable cloudiness and is the conventional indicator of a fuel’s potential for cold weather problems. The lower the cloud point, the better the fuel should perform in cold weather. According to an article published by Iowa State University Extension, the cloud point of biodiesel is typically between 30 °F and 60 °F, while the cloud point of the most common form of pure petroleum-based diesel fuel is typically less than 20 °F. It is our experience that when biodiesel is mixed with pure petroleum-based diesel to make a two percent biodiesel blend, the cloud point of the blended fuel can be 2 °F to 6 °F higher than petroleum-based diesel and the cloud point of a twenty percent biodiesel blend can be 15 °F to 35 °F higher than petroleum based diesel, depending on the individual cloud points of the biodiesel and petroleum-based diesel. Cold temperatures can therefore cause biodiesel blended fuel to become cloudy and eventually to gel when pure petroleum-based diesel would not, and this can lead to plugged fuel filters and other fuel handling and performance problems for customers and suppliers. The consequences of these higher cloud points may cause demand for biodiesel in northern and eastern United States markets to diminish during the colder months, which are the primary markets in which we currently operate.

The tendency of biodiesel to gel in colder weather may also result in long-term storage problems. In cold climates, fuel may need to be stored in a heated building or heated storage tanks, which result in higher storage costs. This and other performance problems, including the possibility of particulate formation above the cloud point of a blend of biodiesel and petroleum-based diesel, may also result in increased expenses as we try to remedy these performance problems, including the costs of extra cold weather treatment additives. Remedying these performance problems may result in decreased yields, lower process throughput or both, as well as substantial capital costs. Any reduction in the demand for our biodiesel product, or the production capacity of our facilities will reduce our revenues and have an adverse effect on our cash flows and results of operations.

Growth in the sale and distribution of biodiesel is dependent on the expansion of related infrastructure which may not occur on a timely basis, if at all, and our operations could be adversely affected by infrastructure limitations or disruptions.

Growth in the biodiesel industry depends on substantial development of infrastructure for the distribution of biodiesel. Substantial investment required for these infrastructure changes and expansions may not be made on a timely basis or at all. The scope and timing of any infrastructure expansion are generally beyond our control. Also, we compete with other biofuel companies for access to some of the key infrastructure components such as pipeline and terminal capacity. As a result, increased production of biodiesel or other biofuels will increase the demand and competition for necessary infrastructure. Any delay or failure in expanding distribution infrastructure could hurt the demand for or prices of biodiesel, impede delivery of our biodiesel, and impose additional costs, each of which would have a material adverse effect on our results of operations and financial condition. Our business will be dependent on the continuing availability of infrastructure for the distribution of increasing volumes of biodiesel and any infrastructure disruptions could materially harm our business.

We may face competition from imported biodiesel and renewable diesel, which may reduce demand for biodiesel produced by us and cause our revenues and profits to decline.

Biodiesel and renewable diesel imports into the United States have increased significantly and compete with United States produced biodiesel. The imported fuels may benefit from production incentives or other financial incentives in their home countries that offset some of their production costs and enable them to profitably sell biodiesel or renewable diesel in the United States at lower prices than United States-based biodiesel producers. Under RFS2, imported biodiesel and renewable diesel is eligible and, therefore, competes to meet the volumetric requirements for biomass-based diesel and advanced biofuels. If imports continue to increase, this could make it more challenging for us to market or sell biodiesel in the United States, which would have a material adverse effect on our revenues. Imported biodiesel that does not qualify under RFS2, also competes in jurisdictions where there are biodiesel blending requirements.

Nitrogen oxide emissions from biodiesel may harm its appeal as a renewable fuel and increase costs.

In some instances biodiesel may increase emissions of nitrogen oxide as compared to petroleum-based diesel fuel, which could harm air quality. Nitrogen oxide is a contributor to ozone and smog. New Technology Diesel Engines eliminate any such increase. Emissions from older vehicles while the fleet turns over may decrease the appeal of biodiesel to environmental groups

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and agencies who have been historic supporters of the biodiesel industry, potentially harming our ability to market our biodiesel.

In addition, several states may act to regulate potential nitrogen oxide emissions from biodiesel. California is in the process of formulating biodiesel regulations that may limit the volume of biodiesel that can be used or require an additive to reduce potential emissions. In states where such an additive is required to sell biodiesel, the additional cost of the additive may make biodiesel less profitable or make biodiesel less cost competitive against petroleum-based diesel or renewable diesel, which would negatively impact our ability to sell our products in such states and therefore have an adverse effect on our revenues and profitability.

Several biofuels companies throughout the United States have filed for bankruptcy over the last several years due to industry and economic conditions.

A volatile regulatory environment, lack of debt or equity investments and volatile biofuel prices and feedstock costs have likely contributed to the necessity of bankruptcy filings by biofuel producers. Our business has been, and in the future may be, negatively impacted by the industry conditions that influenced the bankruptcy proceedings of other biofuel producers, or we may encounter new competition from buyers of distressed biodiesel properties who enter the industry at a lower cost than original plant investors.

Risks Related to Our Common Stock

The market price for our common stock may be volatile.

Although there is currently an active and liquid trading market for our common stock, the market price for our common stock is likely to be highly volatile and subject to wide fluctuations in response to factors including the following:

• actual or anticipated fluctuations in our financial condition and operating results;

• changes in the performance or market valuations of other companies engaged in our industry;

• issuance of new or updated research reports by securities or industry analysts;

• changes in financial estimates by us or of securities or industry analysts;

• investors’ general perception of us and the industry in which we operate;

• changes in the political climate in the industry in which we operate, existing laws, regulations and policies applicable to our business and products, including RFS2, and the continuation or adoption or failure to continue or adopt renewable energy requirements and incentives, including the blenders tax credit;

• other regulatory developments in our industry affecting us, our customers or our competitors;

• announcements of technological innovations by us or our competitors;

• announcement or expectation of additional financing efforts, including sales or expected sales of additional common stock;

• additions or departures of key management or other personnel;

• litigation;

• inadequate trading volume;

• general market conditions in our industry; and

• general economic and market conditions, including continued dislocations and downward pressure in the capital markets.

In addition, stock markets generally and from time to time experience significant price and volume fluctuations that are not related to the operating performance of particular companies. These market fluctuations may have material adverse effect on the market price of our common stock.

We may issue additional common stock as consideration for future investments or acquisitions.

We have issued in the past, and may issue in the future, our securities in connection with investments and acquisitions. The amount of our common stock or securities convertible into or exchangeable for our common stock issued in connection with an investment or acquisition could constitute a material portion of our then outstanding common stock.

We have never paid dividends on our common stock and we do not anticipate paying any cash dividends in the foreseeable future.

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We have paid no cash dividends on any of our classes of common stock to date, have contractual restrictions against paying cash dividends and currently intend to retain our future earnings to fund the development and growth of our business. In addition, holders of our Series B Preferred Stock are entitled to receive cumulative dividends semi-annually in arrears on June 30 and December 30 of each year at an annual rate of $1.125 per share. We may, at our option, defer a regularly scheduled dividend payment on the Series B Preferred Stock and instead pay accumulated and unpaid dividends on the following dividend payment date, however, we may only defer two such dividend payments and may not defer consecutive dividend payments. We may pay any dividend in cash, by delivering shares of our common stock, or through any combination of cash and shares of common stock. Unless all accumulated and unpaid dividends on the Series B Preferred Stock are paid in full, We may not pay any dividends on other shares of its capital stock. As a result, stockholders must look solely to appreciation of our common stock to realize a gain on their investment. This appreciation may not occur. Investors seeking cash dividends should not invest in our common stock.

Delaware law and our amended and restated certificate of incorporation and bylaws will contain anti-takeover provisions that could delay or discourage takeover attempts that stockholders may consider favorable.

Provisions in our amended and restated certificate of incorporation and bylaws may have the effect of delaying or preventing a change of control or changes in our management. These provisions include the following:

• the right of the board of directors to elect a director to fill a vacancy created by the expansion of the board of directors;

• the requirement for advance notice for nominations for election to the board of directors or for proposing matters that can be acted upon at a stockholders’ meeting;

• the ability of the board of directors to alter our bylaws without obtaining stockholder approval;

• the ability of the board of directors to issue, without stockholder approval, up to 10,000,000 shares of preferred stock with rights set by the board of directors, which rights could be senior to those of common stock;

• a classified board;

• the required approval of holders of at least two-thirds of the shares entitled to vote at an election of directors to adopt, amend or repeal our bylaws or amend or repeal the provisions of our amended and restated certificate of incorporation regarding the classified board, the election and removal of directors and the ability of stockholders to take action by written consent; and

• the elimination of the right of stockholders to call a special meeting of stockholders and to take action by written consent.

In addition, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, or DGCL. These provisions may prohibit or restrict large stockholders, in particular those owning 15% or more of our outstanding voting stock, from merging or combining with us. These provisions in our amended and restated certificate of incorporation and bylaws and under Delaware law could discourage potential takeover attempts and could reduce the price that investors might be willing to pay for shares of our common stock in the future and result in our market price being lower than it would without these provisions.

If securities or industry analysts issue an adverse or misleading opinion regarding our stock or do not publish research or reports about our business, our stock price and trading volume could decline.

The trading market for our Common Stock relies in part on the research and reports that equity research analysts publish about us and our business. It is difficult for companies such as ours to attract independent equity research analysts to cover our common stock. We do not control these analysts or the content and opinions included in their reports. The price of our common stock could decline if one or more equity research analysts downgrade our common stock or if those analysts issue other unfavorable commentary or cease publishing reports about us or our business. Although there is currently an active and liquid trading market for REG common stock, if one or more equity research analysts ceases coverage of our company, we could lose visibility in the market, which in turn could cause our stock price to decline and the market for our common stock to become illiquid.

ITEM 1B. Unresolved Staff Comments

None.

ITEM 2. Properties

The following table lists each of our biodiesel production facilities and its location, use, and nameplate production capacity. Each facility listed below is used by our Biodiesel Segment.

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COMPLETED FACILITIES

Location	Use	Nameplate Production Capacity (mmgy)
Ralston, Iowa	Biodiesel production	12
Seabrook, Texas	Biodiesel production	35
Danville, Illinois	Biodiesel production	45
Newton, Iowa	Biodiesel production	30
Seneca, Illinois	Biodiesel production	60
Albert Lea, Minnesota	Biodiesel production	30
New Boston, Texas	Biodiesel production	15
Ellenwood, Georgia	Biodiesel production	15
Mason City, Iowa	Biodiesel production	30

Our Ellenwood facility was idled by the previous owners prior to our acquisition and will remain so until repairs or upgrades are made. We have not yet set a production date for our Ellenwood facility.

The following table lists our partially constructed or idled biodiesel production facilities, the planned nameplate capacity and the approximate level of completion.

PARTIALLY CONSTRUCTED FACILITIES

Location	Use	Production Capacity (mmgy)	Approximate Completion Level
St. Rose, Louisiana	Biodiesel production	60	45%
Emporia, Kansas	Biodiesel production	60	20%
Clovis, New Mexico	Biodiesel production	15	50%

Through a subsidiary we are a 50% owner of 416 South Bell, LLC, which owns and leases to us our corporate headquarters located at 416 South Bell Avenue, Ames, Iowa 50010, comprised of 60,480 square feet of office and laboratory space, under a lease that expires in December 2017 and is renewable at our option for an additional ten years.

ITEM 3. Legal Proceedings

We are not a party to any material pending legal proceeding, nor is any of our property the subject of any material pending legal proceeding, except ordinary routine litigation arising in the ordinary course of our business and incidental to our business, none of which is expected to have a material adverse impact upon our business, financial position or results of operations.

ITEM 4. Mine Safety Disclosures

None.

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PART II

ITEM 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market For Our Common Equity

Our common stock began trading on the NASDAQ Global market on January 19, 2012. Prior to that time, there was no public market for our stock. The table below sets forth the high and low sales price of our Common Stock.

2013	High		Low
Fourth Quarter	$	16.00	$	8.51
Third Quarter	$	16.50	$	12.77
Second Quarter	$	14.80	$	7.69
First Quarter	$	8.20	$	5.90
2012	High		Low
Fourth Quarter	$	7.50	$	4.28
Third Quarter	$	9.00	$	4.62
Second Quarter	$	10.58	$	6.11
First Quarter (from January 19, 2012)	$	10.65	$	8.56

Holders

As of February 28, 2014, there were approximately 1,820 holders of record of our common stock.

Dividends

We have never paid, and do not intend to pay in the future, a cash dividend on our Common Stock. Holders of our Series B Preferred Stock are entitled to receive cumulative dividends semi-annually in arrears on June 30 and December 30 of each year at an annual rate of $1.125 per share. We may, at our option, defer a regularly scheduled dividend payment and instead pay accumulated and unpaid dividends on the following dividend payment date, however, we may only defer two such dividend payments and may not defer consecutive dividend payments. We may pay any dividend in cash, by delivering shares of Common Stock, or through any combination of cash and shares of Common Stock. Unless all accumulated and unpaid dividends on the Series B Preferred Stock are paid in full, we may not pay any dividends on our capital stock. In addition, we have entered into agreements that contractually restrict our subsidiaries from paying dividends, making distributions or making loans to our parent company or to any other subsidiaries.

Securities Authorized for Issuance Under Equity Compensation Plans

The following table provides certain information as of December 31, 2013, with respect to our equity compensation plans:

PLAN CATEGORY	NUMBER OF SECURITIES TO BE ISSUED UPON EXERCISE OF OUTSTANDING OPTIONS, WARRANTS AND RIGHTS		WEIGHTED AVERAGE EXERCISE PRICE OF OUTSTANDING OPTIONS, WARRANTS AND RIGHTS			NUMBER OF SECURITIES REMAINING AVAILABLE FOR FUTURE ISSUANCE UNDER EQUITY COMPENSATION PLANS
Equity compensation plans approved by security holders	1,961,023	1	$	11.09	2	705,407
Equity compensation plans not approved by security holders	—		—			—
Total	1,961,023		$	11.09		705,407

1 Includes stock options of 87,026, restricted stock units of 500,928 and stock appreciation rights of 1,373,069.

2 Restricted stock units do not have an exercise price and therefore have not been included in the calculation of weighted average exercise price.

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Performance Graph

The following performance graph is not “soliciting material,” is not deemed filed with the SEC, and is not to be incorporated by reference into any of our filings under the Securities Act of 1933 or the Securities Exchange Act of 1934, as amended, respectively.

The following graph shows a comparison of the cumulative total returns from January 19, 2012 to December 31, 2013, for us, the Clean Tech Index and the Russell 3000 Index. The graph assumes that $100 was invested on January 18, 2012 in our common stock, the Clean Tech Index and the Russell 3000 Index, and that all dividends were reinvested.

	01/19/2012		12/31/2012		12/31/2013
REGI	$	100.00	$	58.60	$	114.60
Clean Tech Index	100.00		99.59		136.55
Russell 3000	100.00		109.17		142.96

Use of Proceeds

On January 24, 2012, we completed the initial public offering of shares of our common stock under a registration statement on Form S-1 (File No. 333-175627), which was declared effective by the SEC on January 18, 2012. The net proceeds from the initial public offering were approximately $59.9 million after deducting underwriting discounts and offering expenses payable by us. We used approximately $11 million of the net proceeds from the offering to exercise the option we held to acquire the Seneca Facility. We used the remainder of the net proceeds for working capital, capital expenditures related to improvements of production processes and logistics, and investments, including potential acquisitions, joint ventures and other collaborative arrangements, in new biofuel businesses, production technologies or other assets and in opportunities to extend our biorefinery platform to the production of renewable chemicals and feedstocks.

Sales of Unregistered Securities

On January 22, 2014, we issued 2,230,559 shares of our Common Stock to LS9 pursuant to the terms of that certain Asset Purchase Agreement, dated as of January 18, 2014, by and among LS9, REG, REG Life Sciences and Fortis Advisors LLC, solely in its capacity as the representative of LS9 and the indemnity securityholders named therein.

On February 25, 2014, we issued 49,662 shares of Common Stock with respect to the intangible supply agreement in connection with the purchase of substantially all Tellurian Biodiesel, Inc. and American BDF, LLC assets.

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Issuer Purchases of Equity Securities

There are currently no authorized repurchase programs in effect under which we may repurchase shares of our outstanding common stock.

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ITEM 6. Selected Financial Data

The following selected consolidated financial data should be read together with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and our financial statements and related notes included elsewhere in this annual report.

The selected consolidated balance sheet data as of December 31, 2013 and 2012, and the selected consolidated statements of operations data for each year ended December 31, 2013, 2012 and 2011, have been derived from our audited consolidated financial statements which are included elsewhere in this annual report. The selected consolidated balance sheet data as of December 31,2011, 2010 and 2009, and the selected consolidated statements of operations data for the years ended December 31,2010 and 2009 have been derived from our audited consolidated financial statements not included in this annual report.

	Year Ended December 31,
	2013 (1)		2012 (2)		2011 (3)		2010 (4)			2009
	(In thousands, except per share amounts)
Consolidated Statement of Operations Data:
Total revenues	$	1,498,138	$	1,015,034	$	824,031	$	216,455		$	131,501
Net income (loss) attributable to the company's common stockholders	165,254		43,482		42,753		(119,122		)	(50,928		)
Net income (loss) per share attributable to common stockholders
Basic	5.00		1.53		3.14		(4.28		)	(15.35		)
Diluted	5.00		0.27		3.14		(4.28		)	(15.35		)
Consolidated Balance Sheet Data:
Total assets	$	740,855	$	495,784	$	484,447	$	369,643		$	200,558
Long-term debt	27,151		31,806		73,079		61,024			25,749
Redeemable preferred stock	3,963		83,043		147,779		122,436			149,122

(1) Reflects the acquisition of Soy Energy as of July 30, 2013.

(2) Reflects the acquisition of North Texas Bio Energy as of October 26, 2012 and BullDog Biodiesel on November 16, 2012.

(3) Reflects the acquisition of SoyMor as of July 12, 2011.

(4) Reflects the deconsolidation of Blackhawk as of January 1, 2010, the acquisition of Blackhawk as of February 26, 2010, acquisition of CIE as of March 8, 2010, acquisition and consolidation of Seneca Landlord as of April 8, 2010, acquisition of Tellurian and ABDF as of July 16, 2010, and the acquisition of Clovis as of September 21, 2010.

ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with our consolidated financial statements and notes thereto that appear elsewhere in this report. This discussion contains forward-looking statements reflecting our current expectations that involve risks and uncertainties. Actual results may differ materially from those discussed in these forward-looking statements due to a number of factors, including those set forth in the section entitled “Risk Factors” and elsewhere in this report.

Overview

We are the largest producer of biodiesel in the United States with a nationwide distribution and logistics system. We have been a leader in the biodiesel industry since 1996. We have transitioned from being primarily an operator of a third party-owned network of facilities to now owning eight operating biodiesel production facilities with aggregate nameplate production capacity of 257 million gallons per year, or mmgy. We produce biodiesel primarily from lower cost feedstocks, such as inedible corn oil, used cooking oil and inedible animal fat. A small portion of our biodiesel is produced using virgin vegetable oils, such as soybean oil.

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During 2013, we sold 259 million gallons, including 48 million gallons we purchased from third parties and resold. During 2012, we sold 188 million gallons of biodiesel, including 25 million gallons we purchased from third parties and resold.

Beginning in the second half of 2010, we and the biodiesel industry began to benefit from the implementation of the Renewable Fuel Standard, or RFS2, which became effective July 1, 2010 and requires Obligated Parties, including petroleum refiners and petroleum importers in the 48 contiguous states and Hawaii that have annual renewable fuel volume obligations, to use specified amounts of biomass-based diesel, which includes biodiesel, as discussed further below. In addition, the $1.00 per gallon federal blenders tax credit, which had expired as of December 31, 2011, was reinstated in January 2, 2013 retroactively for all of 2012 and prospectively for 2013. The blenders tax credit again expired on December 31, 2013 and it is uncertain whether the credit will be reinstated. As a result of these regulatory changes, as well as improving general economic conditions and relatively high petroleum prices, the price of and demand for biodiesel increased significantly compared to the years prior to 2011. During 2011, our average price for B100 was $5.23 per gallon. During 2012, our average price per gallon of B100 was $4.60, or 12% lower than the average price in 2011, and we sold 188 million gallons of biodiesel, compared to 150 million gallons sold in 2011. During 2013, our average price per gallons of B100 was $4.58, or 12% lower than the average price in 2011 and 1% lower than the average price in 2012. In 2013, we sold 259 million gallons of biodiesel, an increase of 37% and 73% over 2012 and 2011 gallons sold, respectively.

We own four partially completed biodiesel production facilities. In 2007, we began construction of two 60 mmgy nameplate production capacity facilities, one near New Orleans, Louisiana and the other in Emporia, Kansas. In February 2008, we halted construction of these facilities as a result of conditions in the biodiesel industry and our inability to obtain financing necessary to complete construction of the facilities. Construction of the New Orleans facility is approximately 45% complete and construction of the Emporia facility is approximately 20% complete. Further, during the third quarter of 2010, we acquired a 15 mmgy nameplate biodiesel production capacity facility in Clovis, New Mexico which is approximately 50% complete. Currently, the Clovis facility is being operated as a terminal. In November 2012, we acquired a 15 mmgy nameplate biodiesel production facility near Atlanta, Georgia that was idled prior to our acquisition and will remain so until certain repairs or upgrades are made. We plan to complete construction and upgrade of these facilities as financing becomes available, and subject to market conditions.

On July 30, 2013, we acquired substantially all of the assets of Soy Energy, LLC's, or Soy Energy Assets, in exchange for $10.9 million of cash and the issuance of a $5.1 million promissory note to Soy Energy. The Soy Energy Assets consisted of a 30 mmgy nameplate capacity biodiesel facility and related assets located in Mason City, Iowa. We began producing biodiesel on October 1, 2013 and have begun a $20 million project to upgrade the plant to a multi-feedstock facility.

On December 17, 2013, we entered into an agreement to purchase substantially all of the assets and liabilities of Syntroleum Corporation in exchange for 3,796,000 shares of REG common stock (subject to reduction in the event that the aggregate market value of the REG common stock to be issued would exceed $49 million or if the cash transferred to REG is less than $3.2 million). The assets acquired include a 50% interest in Dynamic Fuels, LLC, a 75 mmgy renewable diesel production facility in Geismar, Louisiana and an extensive patent portfolio of gas-to-liquids and renewable fuel technologies. The closing of this acquisition requires, in addition to other matters, the affirmative vote of a majority of the shares of Syntroleum approving the sale through a shareholder vote.

On January 22, 2014, we acquired industrial biotechnology research and development company LS9, Inc., or LS9, for a purchase price of up to $61.5 million, consisting of up front and earnout payments, in stock and cash. The acquisition is part of our strategy to expand into the production of renewable chemicals, additional advanced biofuels and other products. LS9 is a research and development stage company focused on harnessing the power of microbial fermentation to develop and produce renewable chemicals, fuels and other products. The assets acquired consist mainly of in-process research and development, intellectual property and fixed assets. We have not completed our initial accounting for this business combination as the valuation of the assets acquired and contingent consideration has not been finalized. We do not expect to generate revenue from sales of renewable chemicals in the near term.

On February 12, 2014, we announced the launch of a new division that will sell petroleum-based heating oil and diesel fuel, and enable us to offer more biofuel blends. We will sell heating oil and ultra-low sulfur diesel, or ULSD, at terminals initially throughout the northeastern U.S. as well as BioHeat® blended heating fuel at one of our existing terminal locations and potentially in other locations across North America.

We derive revenues from two reportable business segments: Biodiesel and Services

Biodiesel Segment

Our Biodiesel segment, as reported herein, includes:

• the operations of the following biodiesel production facilities:

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• a 12 mmgy nameplate biodiesel production facility located in Ralston, Iowa;

• a 35 mmgy nameplate biodiesel production facility located near Houston, Texas;

• a 45 mmgy nameplate biodiesel production facility located in Danville, Illinois;

• a 30 mmgy nameplate biodiesel production facility located in Newton, Iowa;

• a 60 mmgy nameplate biodiesel production facility located in Seneca, Illinois, which we operated under a lease beginning in April 2010 and subsequently acquired in January 2012;

• a 30 mmgy nameplate biodiesel production facility located in Albert Lea, Minnesota, since its acquisition in July 2011;

• a 15 mmgy nameplate biodiesel production facility located in New Boston, Texas, since its acquisition in October 2012 that was idled prior to acquisition. We completed repairs to the facility and started producing biodiesel at the facility in June 2013;

• a 30 mmgy nameplate biodiesel production facility located in Mason City, Iowa, since its acquisition in July 2013 that was idle prior to acquisition. We completed repairs to the facility and started producing biodiesel at the facility in October 2013;

• purchases and resale of biodiesel, Renewable Identification Numbers, or RINs, and raw material feedstocks acquired from third parties;

• our sales of biodiesel produced under toll manufacturing arrangements with third party facilities using our feedstocks;

• our production of biodiesel under toll manufacturing arrangements with third parties using their feedstocks at our facilities; and

• incentives received from federal and state programs for renewable fuels.

We derive a small portion of our revenues from the sale of glycerin, free fatty acids and other co-products of the biodiesel production process. In 2012 and 2013, our revenues from the sale of co-products were less than five percent of our total Biodiesel segment revenues. We have not derived any revenues to date from our renewable chemicals business.

In accordance with EPA regulations, we generate 1.5 Renewable Identification Numbers, or RINS, for each gallon of biodiesel we produce. RINs are used to track compliance with RFS2 using the EPA moderated transaction system, or EMTS. RFS2 allows us to attach between zero and 2.5 RINs to any gallon of biodiesel we sell. We generally attach 1.5 RINs when we sell a gallon of biodiesel. As a result, a portion of our selling price for a gallon of biodiesel is generally attributable to RFS2 compliance, but no cost is allocated to the RINs generated by our biodiesel production because RINs are a form of government incentive and not a result of the physical attributes of the biodiesel production. In addition, RINs, once obtained with gallons of biodiesel, may be separated by the acquirer and sold separately. From time to time, we may obtain these RINs from third parties for resale. The value of these RINs obtained from third parties is reflected in “Prepaid expenses and other assets” on our consolidated balance sheet. At each balance sheet date, this RIN inventory is valued at the lower of cost or market and resulting adjustments are reflected in our cost of goods sold for the period. The cost of RINs obtained from third parties is determined using the average cost method. Because we do not allocate costs to RINs generated by our biodiesel production, fluctuations in the value of our RIN inventory represent fluctuations in the value of RINs we have obtained from third parties.

Services Segment

Our Services segment includes:

• biodiesel facility management and operational services, whereby we provide day-to-day management and operational services to biodiesel production facilities as well as other clean-tech companies; and

• construction management services, whereby we act as the construction management and general contractor for the construction of biodiesel production facilities.

Historically, we provided facility operations management services to owners of biodiesel production facilities under management and operational services agreements, or MOSAs. During 2010, we ceased providing services to three of these facilities, acquired one and continued to provide limited services to the other facility. The termination of our MOSAs has not had a significant impact on our financial statements. During 2011, we acquired the remaining facility to which we were providing limited services. Since then, our Services segment has been focused internally on managing and upgrading our facilities.

We have utilized our construction management expertise internally to upgrade our facilities during the last three years. We completed a $22 million upgrade to our Albert Lea facility in the second quarter 2013 and a $5 million upgrade to our Seneca facility. In addition during 2013, we spent $4 million and $1 million in repairs of our recently acquired New Boston and

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Mason City facilities, respectively. We anticipate external revenues derived from construction management services will be minimal in future periods. Demand for our construction management and facility management and operational services depend on capital spending by potential customers and existing customers, which is directly affected by trends in the biodiesel industry. We have not received any orders or elected to offer these services to outside parties for new facility construction services since 2009.

Factors Influencing Our Results of Operations

The principal factors affecting our segments are the market prices for biodiesel and the feedstocks used to produce biodiesel, as well as governmental programs designed to create incentives for the production and use of biodiesel.

Governmental programs favoring biodiesel production and use

Biodiesel has historically been more expensive than petroleum-based diesel, excluding biodiesel incentives and credits. The biodiesel industry’s growth has largely been the result of federal and state programs that require or incentivize biodiesel, which allows biodiesel to compete with petroleum-based diesel on price.

On July 1, 2010, RFS2 was implemented, stipulating volume requirements for the amount of biomass based diesel and other advanced biofuels that must be utilized in the United States each year. Under RFS2, Obligated Parties, including petroleum refiners and fuel importers, must show compliance with these standards. Currently, biodiesel meets two categories of an Obligated Party’s annual renewable fuel required volume obligation, or RVO—biomass-based diesel and undifferentiated advanced biofuel. The RFS2 program required the domestic use of one billion gallons of biodiesel in 2012 and 1.28 billion gallons in 2013. As of this filing, the EPA has not finalized the 2014 RVO. The EPA has proposed that the 2014 and 2015 biomass-based diesel RVO be 1.28 billion gallons for each of those years and a reduced Advanced Biofuel RVO of 2.20 billion gallons rather than the original EISA volume of 3.75 for 2014. Our sales volumes and revenues have benefited from our increased production capacity, as well as an increase in demand relating to the implementation of RFS2.

RFS2 required the use of 800 million gallons of biomass-based diesel in 2011. According to EMTS data, approximately 1.1 billion gallons of biomass-based diesel were produced in 2011, approximately 4% of which was imported. We believe more gallons were produced in 2011 than were required by RFS2 as a result of the fact that the blenders tax credit was set to expire on December 31, 2011. Since Obligated Parties are allowed to satisfy up to 20% of their 2012 RVO with 2011 RINs, we believe many purchasers of biodiesel were taking advantage of the blenders tax credit while it was available. This 2011 overproduction had an impact on demand for biodiesel in 2012. The 2012 RFS2 requirement for biomass-based diesel was one billion gallons. The 2011 carry-over could be used to satisfy up to 200 million gallons of the one billion 2012 requirement. According to EMTS data, approximately 1.14 billion gallons of biomass-based diesel was produced during 2012, indicating that between the 2011 carry-over and 2012 year production, there was sufficient biomass-based diesel produced to satisfy the 2012 RVO of one billion gallons and create carryover towards the 2013 RVO. The 2013 RFS2 requirement for biomass-based diesel was 1.28 billion. According to EMTS data, 1.78 billion gallons of biomass-based diesel was produced in 2013. We anticipate we may experience market conditions similar to those in the first quarter of 2012 as a result of this overproduction. The production and importation of more biodiesel in 2013 than was required to meet the 2013 RVO may be the result of Obligated Parties using biodiesel RINs to satisfy their Advanced Biofuel or conventional biofuel RVOs and may also be the result of many producers, importers and purchasers of biodiesel taking advantage of the blenders tax credit prior to its expiration on December 31, 2013 as we believe was the case in 2011.

The federal blenders tax credit provided a $1.00 refundable tax credit per gallon of 100% pure biodiesel, or B100, to the first blender of biodiesel with petroleum-based diesel fuel. On January 2, 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which reinstated the federal biodiesel blenders tax credit for 2013 and retroactively reinstated the credit for 2012. The retroactive credit for 2012 resulted in a net benefit to us of $57.7 million in the first half of 2013. The net benefit will increase our income before income taxes and equity investments by a similar amount. The federal blenders tax credit expired on December 31, 2013 and it is uncertain whether it will be reinstated again. The expiration of the blenders tax credit along with any amendments that may be made if the blenders credit is reinstated or a similar credit is enacted, could adversely affect our financial results in the future.

Biodiesel and feedstock price fluctuations

Our operating results generally reflect the relationship between the price of biodiesel, including credits and incentives, like RINs and the price of feedstocks used to produce biodiesel.

Biodiesel is a low carbon, renewable alternative to petroleum-based diesel fuel and is primarily sold to the end user after it has been blended with petroleum-based diesel fuel. Biodiesel prices have historically been heavily influenced by petroleum-based diesel fuel prices. Accordingly, biodiesel prices have generally been impacted by the same factors that affect petroleum

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prices, such as worldwide economic conditions, wars and other political events, OPEC production quotas, changes in refining capacity and natural disasters.

Regulatory and legislative factors also influence the price of biodiesel. Biomass-based diesel RIN pricing, a value component that was introduced via RFS2 in July 2010, has had a significant impact on our biodiesel pricing. For example, the value of RINs, as reported by Oil Price Information Service, or OPIS, has been significant to the price of biodiesel, contributing approximately $1.83, or 38%, of the average B100 Upper Midwest spot price of a gallon of biodiesel as reported by The Jacobsen in December 2011 and $0.89 or 22% of the average B100 Upper Midwest spot price of a gallon of biodiesel as reported by The Jacobsen in December 2012. In December 2013, the value of RINs, as reported by OPIS, contributed approximately $0.49, or 13%, of the average B100 Upper Midwest spot price of a gallon of biodiesel as reported by The Jacobsen. During 2013, the value of RINs, as reported by OPIS, have contributed to the average B100 spot price of a gallon of biodiesel, as reported by The Jacobsen, and range from a low of $0.35 per gallon, or 9%, in October to a high of $2.20, or 43%, per gallon in January. There was a sharp decline in RIN prices during the third and fourth quarters of 2013 that carried through the end of the year. During this period, RIN pricing declined from $1.07 per RIN at June 30, 2013 to the low price of $0.24 per RIN in November 2013, finishing the year at $0.35 per RIN on December 31, 2013, as reported by OPIS, which contributed to the decline in average price of biodiesel during 2013.

This decrease in the value of RINs during 2013 and 2012 resulted in a $3.2 million and $19.6 million, respectively, write-down to lower of cost or market on RIN inventory acquired from third parties that occurred throughout the year. See “Note 10 – Other Assets” to our consolidated financial statements. We enter into forward contracts to sell RINs and we use risk management position limits to manage RIN exposure. Because of EPA rules limiting the amount of assigned RINs we can hold at any one time, the value of these assigned RINs held in inventory does not have a material effect on margins from period to period.

During 2013, feedstock expense accounted for 84% of our production cost, while methanol and chemical catalysts expense accounted for 5% and 3% of our costs of goods sold, respectively.

Feedstocks for biodiesel production, such as inedible corn oil, used cooking oil, inedible animal fat and soybean oil are commodities and market prices for them will be affected by a wide range of factors unrelated to the price of biodiesel and petroleum-based diesel fuels. The following table outlines some of the factors influencing supply and price for each feedstock:

Feedstock	Factors Influencing Supply and Price
Inedible Corn Oil	Implementation of inedible corn oil separation systems into existing and new ethanol facilities
	Demand for inedible corn oil from other markets
	Ethanol production
	Export demand
	Extraction system yield
Used Cooking Oil	Export demand
	Population
	Number of restaurants in the vicinity of collection facilities and terminals which is dependent on population density
	Cooking methods and eating habits, which can be impacted by the economy
Inedible Animal Fat	Export demand
	Number of slaughter kills in the United States
	Demand for inedible animal fat from other markets
Soybean Oil	Export demand
	Weather conditions
	Soybean meal demand
	Farmer planting decisions
	Government policies and subsidies
	Crop disease

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During 2013 and 2012, 83% and 84%, respectively, of our feedstocks were comprised of inedible corn oil, used cooking oil and inedible animal fats with the remainder coming from virgin vegetable oil.

Historically, most biodiesel in the United States has been made from soybean oil. Soybean oil prices have fluctuated greatly, but have generally remained at historically high levels since early 2007 due to higher overall commodity prices. Over the period January 2010 to December 2013, soybean oil prices (based on daily closing nearby futures prices on the CBOT for crude soybean oil) have ranged from $0.3584 per pound, or $2.69 per gallon of biodiesel, in July 2010 to $0.5977 per pound, or $4.48 per gallon of biodiesel, in April 2011, assuming 7.5 pounds of soybean oil yields one gallon of biodiesel. The average closing price for soybean oil during 2013 was $0.4585 per pound, or $3.44 per gallon of biodiesel, compared to $0.5224 per pound, or $3.92 per gallon of biodiesel, in 2012.

Over the period from January 2010 to December 2013, the price of choice white grease, an inedible animal fat (based on daily closing nearby futures prices for The Jacobsen reported Missouri River delivery of choice white grease), have ranged from $0.2325 per pound, or $1.86 per gallon of biodiesel, in February 2010 to $0.5250 per pound, or $4.20 per gallon of biodiesel, in June 2011, assuming 8.0 pounds of choice white grease yields one gallon of biodiesel. The average closing price for choice white grease during 2013 was $0.3767 per pound, or $3.01 per gallon of biodiesel, or $0.4133 per pound, or $3.31 per gallon of biodiesel, in 2012.

The graph below illustrates the spread between the cost of producing one gallon of biodiesel made from soybean oil to the cost of producing one gallon of biodiesel made from a lower cost feedstock for the period December 2010 through December 2013. The results were derived using assumed conversion factors for the yield of each feedstock and subtracting the cost of producing one gallon of biodiesel made from each respective lower cost feedstock from the cost of producing one gallon of biodiesel made from soybean oil.

• Soybean oil (crude) prices are based on the monthly average of the daily closing sale price of the nearby soybean oil contract as reported by CBOT (based on 7.5 pounds per gallons).

(1) Used cooking oil prices are based on the monthly average of the daily low sales price of Missouri River yellow grease as reported by The Jacobsen (based on 8.5 pounds per gallon).

(2) Inedible corn oil prices are reported as the monthly average of the daily distillers’ corn oil market values delivered to Illinois as reported by The Jacobsen (based on 8.2 pounds per gallon).

(3) Choice white grease prices are based on the monthly average of the daily low prices of Missouri River choice white grease as reported by The Jacobsen (based on 8.0 pounds per gallon).

Our results of operations generally will benefit when the spread between biodiesel prices and feedstock prices widens and will be harmed when this spread narrows. The following graph shows feedstock cost data of choice white grease and soybean oil on a per gallon basis compared to the sale price data for biodiesel, and the spread between the two, from December 2010 to December 2013.

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(1) Biodiesel prices are based on the monthly average of the midpoint of the high and low prices of B100 (Upper Midwest) as reported by The Jacobsen.

(2) Soybean oil (crude) prices are based on the monthly average of the daily closing sale price of the nearby soybean oil contract as reported by CBOT (based on 7.5 pounds per gallon).

(3) Choice white grease prices are based on the monthly average of the daily low price of Missouri River choice white grease as reported by The Jacobsen (based on 8.0 pounds per gallon).

(4) Spread between biodiesel price and choice white grease price.

(5) Spread between biodiesel price and soybean oil (crude) price.

The 2012 drought in the Midwestern United States and generally strong demand increased the prices of corn and soybeans. High soybean prices were accompanied with strong protein demand and soy crush economics, which resulted in adequate supplies of soybean oil, which is a by-product of soy crushing. Following the drought, there was a decrease in the price of animal fats, which may have been related to increases in slaughter rates, putting more supply on the market. If an increase in the cost of corn and soybeans were to reduce future slaughter rates, the price of animal fats may rise as supply decreases in the future. Widespread availability of palm oil worldwide has resulted in decreased feedstock prices of animal fats and vegetable oils. Increased production of palm oil along with the largest U.S. corn crop and strong North American and South American soybean crops has put downward pressure on prices of animal fats and vegetable oils. Animal fats and oils compete with corn for inclusion in animal feed.

Risk Management

The profitability of the biodiesel production business largely depends on the spread between prices for feedstocks and biodiesel, including RINs, each of which is subject to fluctuations due to market factors and each of which is not significantly correlated. Adverse price movements for these commodities directly affect our operating results. We attempt to protect operating margins by entering into risk management contracts that mitigate price volatility of our feedstocks, such as inedible corn oil, used cooking oil and inedible animal fat and energy prices. We create offsetting positions by using a combination of forward fixed-price physical purchases and sales contracts on feedstock and biodiesel, including risk management futures contracts, swaps and options primarily on heating oil and soybean oil; however, the extent to which we engage in risk management activities varies substantially from time to time, and from feedstock to feedstock, depending on market conditions and other factors. In making risk management decisions, we utilize research conducted by outside firms to provide additional market information.

Inedible corn oil, used cooking oil and inedible animal fat are the primary feedstocks we used to produce biodiesel in 2011, 2012 and 2013. We utilize several varieties of inedible animal fat, such as beef tallow, choice white grease and poultry fat derived from livestock. There is no established futures market for these lower cost feedstocks. The purchase prices for lower cost feedstocks are generally set on a negotiated flat price basis or spread to a prevailing market price reported by the USDA

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price sheet or The Jacobsen. Our limited efforts to risk manage against changing inedible corn oil, used cooking oil and inedible animal fat prices have involved entering into futures contracts, swaps or options on other commodity products, such as soybean oil or heating oil. However, these products do not always experience the same price movements as lower cost feedstocks, making risk management for these feedstocks challenging. We manage feedstock supply risks related to biodiesel production in a number of ways, including, where available, through long-term supply contracts. For example, most of the feedstock requirements for our Ralston facility were supplied under an agreement with West Central which expires on January 31, 2015 and automatically renews for one additional year unless either party provides sufficient notice of cancellation prior to the renewal. The purchase price for soybean oil under these contracts may be indexed to prevailing Chicago Board of Trade, or CBOT, soybean oil market prices with a negotiated market basis. We utilize futures contracts, swaps and options to risk manage, or lock in, the cost of portions of our future soybean oil requirements generally for varying periods up to one year.

Our ability to mitigate our risk of falling biodiesel and RIN prices is limited. We have entered into forward contracts to supply biodiesel. However, pricing under these forward sales contracts generally has been indexed to prevailing market prices, as fixed price contracts for long periods on acceptable terms have generally not been available. There is no established market for biodiesel futures in the United States. Our efforts to hedge against falling biodiesel prices generally involve entering into futures contracts, swaps and options on other commodity products, such as diesel fuel and heating oil. However, price movements on these products are not highly correlated to price movements of biodiesel.

We generate 1.5 biomass-based diesel RINs for each gallon of biodiesel we produce and sell. We also obtain RINs from third party transactions which we hold for resale. There is no established futures market for RINs, which severely limits the ability to risk manage the price of RINs. We enter into forward contracts to sell RINs and we use risk management position limits to manage RIN exposure.

As a result of our strategy, we frequently have gains or losses on derivative financial instruments that are conversely offset by losses or gains on forward fixed-price physical contracts on feedstocks and biodiesel or inventories. Gains and losses on derivative financial instruments are recognized each period in operating results while corresponding gains and losses on physical contracts are generally not recognized until quantities are delivered or title transfers. Our results of operations are impacted when there is a period mismatch of recognized gains or losses associated with the change in fair value of derivative instruments used for risk management purposes at the end of the reporting period when the purchase or sale of feedstocks or biodiesel has not yet occurred and thus the offsetting gain or loss will be recognized in a later accounting period.

We incurred risk management losses of $5.7 million and $4.6 million from our derivative financial instrument trading activity for the year ended December 31, 2013 and 2012, respectively. Changes in the value of these futures or options instruments are recognized in current income or loss. Over the year 2013, risk management losses have represented an expense of $0.02 per gallon sold. Over the last three years, risk management losses have represented an expense of $0.02 per gallon sold.

Seasonality

Our operating results are influenced by seasonal fluctuations in the demand for biodiesel. Our sales tend to decrease during the winter season due to blending concentrations being reduced to adjust for performance during colder weather. Colder seasonal temperatures can cause the higher cloud point biodiesel we make from inedible animal fats to become cloudy and eventually gel at a higher temperature than petroleum-based diesel or lower cloud point biodiesel made from soybean oil, canola oil or inedible corn oil. Such gelling can lead to plugged fuel filters and other fuel handling and performance problems for customers and suppliers. Reduced demand in the winter for our higher cloud point biodiesel can result in excess supply of such higher cloud point biodiesel and lower prices for such higher cloud point biodiesel. In addition, most of our production facilities are located in colder Midwestern states and our costs of shipping increases as more biodiesel is transported to warmer climate states during winter.

RIN prices may also be subject to seasonal fluctuations. As mentioned above, we generate 1.5 biomass-based diesel RINs for each gallon of biodiesel we produce and sell. The RIN is dated for the calendar year in which it is generated. These RINs are used by Obligated Parties to satisfy their annual RVOs under the RFS2 program. Since only 20% of an Obligated Party's annual RVO can be satisfied by prior year RINs, most RINs must come from biofuel produced or imported during the RVO year. As a result, RIN prices can be expected to decrease as the calendar year progresses if the RIN market is oversupplied compared to that year's RVO and increase if it is undersupplied. In 2011, which had an RVO for biomass-based diesel of 800 million gallons, biomass-based diesel RIN prices, as reported by OPIS, began to decrease in October when biomass-based diesel RIN generation neared the equivalent of 800 million gallons of biomass-based diesel, as reported by EMTS. In 2012, which had an RVO for biomass-based diesel of one billion gallons, biomass-based diesel RIN prices, as reported by OPIS, began to decrease in September when biomass-based diesel RIN generation neared the equivalent of 900 million gallons, as

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reported by EMTS. For 2013, biomass-based diesel RIN generation was 1.78 billion gallons when the RVO for biomass-based diesel was 1.28 billion gallons.

Industry capacity and production

Our operating results are influenced by our industry’s capacity and production, including in relation to RFS2 production requirements. According to EMTS data, approximately 1.1 billion gallons of biomass-based diesel was produced in the United States in 2011, primarily reflecting the recommencement of, or increase in, operations at underutilized facilities in response to RFS2 requirements. Such production was in excess of the 800 million gallon RFS2 requirement for 2011. During 2012, according to EMTS data, approximately 1.1 billion gallons of biomass-based diesel was produced, which also was above RFS2 required volumes of 1 billion gallons of biomass-based diesel for 2012. Production in 2011 and 2012 in excess of RFS2 volume requirements put downward pressure on our margins for biodiesel, negatively affecting our profitability. As reported by EMTS, the biomass-based diesel RIN generation was 1.78 billion gallons in 2013 when the RVO for biomass-based diesel was 1.28 billion. As of this filing, the EPA has proposed the 2014 and 2015 biomass-based diesel RVO at 1.28 billion gallons for each year. Under RFS2, Obligated Parties are entitled to satisfy up to 20% of their annual requirement for with prior year RINs, meaning that 2012 gallons could potentially be used to satisfy 256 million gallons of the 1.28 billion gallon requirement for 2013. We saw a similar decline in RIN prices in the third and fourth quarter of 2013 as production rates exceeded the RVO target.

Components of Revenues and Expenses

We derive revenues in our Biodiesel segment from the following sources:

• sales of biodiesel produced at our wholly-owned facilities, including RINs, transportation, storage and insurance costs to the extent paid for by our customers;

• fees from toll manufacturing arrangements at our facilities for third parties;

• revenues from our sale of biodiesel and RINs produced by third parties through toll manufacturing arrangements with us;

• resale of finished biodiesel, RINs acquired from third parties, and raw material feedstocks acquired from others;

• sales of glycerin, other co-products of the biodiesel production process; and

• incentive payments from federal and state governments, including the federal biodiesel blenders tax credit, which we receive directly when we sell our biodiesel blended with petroleum-based diesel, primarily as B99.9, a less than one percent petroleum-based diesel mix with biodiesel, rather than in pure form, or B100, as well as, from the USDA Advanced Biofuel Program.

We derive revenues in our Services segment from the following sources:

• fees received from operations management services that we provide for biodiesel production facilities, typically based on production rates and profitability of the managed facility; and

• amounts received for services performed by us in our role as general contractor and construction manager for biodiesel production facilities.

Cost of goods sold for our Biodiesel segment includes:

• with respect to our production facilities, expenses incurred for feedstocks, catalysts and other chemicals used in the production process, leases, utilities, depreciation, salaries and other indirect expenses related to the production process, and, when required by our customers, transportation, storage and insurance;

• with respect to biodiesel acquired from third parties produced under toll manufacturing arrangements, expenses incurred for feedstocks, transportation, catalysts and other chemicals used in the production process and toll processing fees paid to the facility producing the biodiesel;

• with respect to finished goods and RINs acquired from third parties, the purchase price of biodiesel and RINs on the spot market or under contract, and related expenses for transportation, storage, insurance, labor and other indirect expenses;

• adjustments made to reflect the lower of cost or market values of our finished goods inventory, including RINs acquired from third parties; and

• changes during the applicable accounting period in the market value of derivative and hedging instruments, such as exchange traded contracts, related to feedstocks and commodity fuel products.

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Cost of goods sold for our Services segment includes:

• with respect to our facility management and operations activities, primarily salary expenses for the services of management employees for each facility and others who provide procurement, marketing and various administrative functions; and

• with respect to our construction management services activities, primarily our payments to subcontractors constructing the production facility and providing the biodiesel processing equipment, and, to a much lesser extent, salaries and related expenses for our employees involved in the construction process.

Selling, general and administrative expense consists of expenses generally involving corporate overhead functions and operations at our Ames, Iowa headquarters.

Other income (expense), net is primarily comprised of the changes in fair value of the embedded derivative related to the Series A Preferred Stock conversion feature, changes in fair value of interest rate swap, interest expense, interest income and the changes in valuation of the Seneca Holdco, LLC liability associated with the put and call options on the equity interest in Seneca Landlord, LLC, or Landlord.

Critical Accounting Policies

Our discussion and analysis of our financial condition and results of operations is based upon our financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amount of assets, liabilities, equities, revenues and expenses and related disclosure of contingent assets and liabilities. We evaluate our estimates on an ongoing basis. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for judgments we make about the carrying values of assets and liabilities that are not readily apparent from other sources. Because these estimates can vary depending on the situation, actual results may differ from the estimates.

We believe the following critical accounting policies affect our more significant judgments used in the preparation of our consolidated financial statements:

Revenue recognition.

We recognize revenues from the following sources:

• the sale of biodiesel, including RINs, biodiesel co-products and raw material feedstocks purchased by us or produced by us at owned manufacturing facilities, leased manufacturing facilities and manufacturing facilities with which we have tolling arrangements;

• resale of finished biodiesel, including RINs and raw material feedstocks acquired from others;

• fees received under toll manufacturing agreements with third parties;

• fees received from federal and state incentive programs for renewable fuels;

• fees from construction, operations and project management; and

• fees received for the marketing and sales of biodiesel produced by third parties.

Biodiesel sales, including RINs and raw material feedstock revenues are recognized when there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

We refer to agreements under which a biodiesel facility produces biodiesel for a third party using such third party’s feedstock as tolling arrangements. Generally, the party producing the biodiesel receives a per gallon fee. Fees received under toll manufacturing agreements with third parties are generally established as an agreed upon amount per gallon of biodiesel produced. The fees are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Revenues associated with governmental incentive programs are recognized when the amount to be received is determinable, collectability is reasonably assured and the sale of product giving rise to the incentive has been recognized. Our revenue from governmental incentive programs is comprised of amounts received from the USDA Advanced Biofuel Program, or the USDA Program, and the blender’s tax credit. For a discussion of the blender’s tax credit, see the section entitled “Risk factors—Loss or reductions of tax incentives for biodiesel production or consumption would have a material adverse effect on our revenues and operating margins” and “—Factors Influencing Our Results of Operations—Governmental programs favoring biodiesel production and use.” In connection with the blender’s tax credit, we file a claim with the Internal Revenue Service, or IRS, for a refund of excise taxes each week for gallons we have blended to B99.9 and sold during the prior week. During 2013,

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we have collected these claims in approximately 20 days on average from the time we file and we currently have no filed claims older than one month. Other than routine audits of these claims, we have had no denials or challenges of our claims and no issues with collectability. On January 2, 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which reinstated a set of tax extender items including the reinstatement of the federal biodiesel blenders tax credit for 2013 and retroactively reinstated credit for 2012. The retroactive credit for 2012 resulted in a net benefit to us of $57.7 million in the first half of 2013. The net benefit increased our income before income taxes and equity investments by a similar amount. We recognized the federal biodiesel blenders tax credit for the gallons we blended in 2012 during the first half of 2013 as the law was signed on January 2, 2013. The federal blenders tax credit again expired on December 31, 2013 and it is uncertain whether it will be reinstated. This revocation along with other amendments of any one or more of those laws, could adversely affect our financial results. However, we expect this will impact demand for feedstocks which will result in a decline in feedstock prices and potentially an increase in RIN prices. In connection with the USDA Program, funds are allocated to us based on our proportionate eligible biofuels production and available funds under the USDA Program. Due to the uncertainty of the amounts to be received, we do not record amounts until we have received notification from the USDA or are in receipt of the funds.

Historically, we have provided consulting and construction services under turnkey contracts. These jobs require design and engineering effort for a specific customer purchasing a unique facility. We record revenues on these fixed-price contracts on the percentage of completion basis using the ratio of costs incurred to estimated total costs at completion as the measurement basis for progress toward completion and revenue recognition. The total contract price includes the original contract plus any executed change orders only when the amounts have been received or awarded.

Contract costs include all direct labor and benefits, materials unique to or installed in the project and subcontract costs. Contract accounting requires significant judgment relative to assessing risks, estimating contract costs and making related assumptions for schedule and technical issues. We routinely review estimates related to contracts and reflect revisions to profitability in earnings on a current basis. If a current estimate of total contract cost indicates an ultimate loss on a contract, we would recognize the projected loss in full when it is first determined. We recognize additional contract revenue related to claims when the claim is probable and legally enforceable.

Changes relating to executed change orders, job performance, construction efficiency, weather conditions and other factors affecting estimated profitability may result in revisions to costs and revenues and are recognized in the period in which the revisions are determined.

Billings in excess of costs and estimated earnings on uncompleted contracts represents amounts billed to customers prior to providing related construction services.

Fees for managing ongoing operations of third party plants, marketing biodiesel produced by third party plants and from other services are recognized as services are provided. We also have performance-based incentive agreements that are included as management service revenues. These performance incentives are recognized as revenues when the amount to be received is determinable and collectability is reasonably assured.

In the past, we have acted as a sales agent for certain third parties under our MOSAs, thus we recognized revenues on a net basis in accordance with ASC Topic 605-45, “Revenue Recognition.” We included the fees earned under the MOSAs in revenue. All of our third party MOSAs have expired or were terminated during 2010.

Impairment of Long-Lived Assets and Certain Identifiable Intangibles. We review long-lived assets, including property, plant and equipment and definite-lived intangible assets for impairment in accordance with ASC Topic 360-10, “Property, Plant, and Equipment,” or ASC Topic 360-10. Asset impairment charges are recorded for long-lived assets and intangible assets subject to amortization when events and circumstances indicate that such assets may be impaired and the undiscounted net cash flows estimated to be generated by those assets are less than their carrying amounts. If estimated future undiscounted cash flows are not sufficient to recover the carrying value of the assets, an impairment charge is recorded for the amount by which the carrying amount of the assets exceeds its fair value. Fair value is determined by management estimates using discounted cash flow calculations. The estimate of cash flows arising from the future use of the asset that are used in the impairment analysis requires judgment regarding what we would expect to recover from the future use of the asset.

Significant assumptions used by management in the undiscounted cash flow analysis include the projected demand for biodiesel based on annual renewable fuel volume obligations under RFS2, our capacity to meet that demand, the market price of biodiesel and the cost of feedstock used in the manufacturing process. For facilities under construction, management’s estimates also include the capital expenditures necessary to complete construction of the plant. Our facilities under construction are expected to have substantially similar operating capabilities and results as our current operating facilities. Such operating capabilities would include similar feedstock capabilities, similar access to low cost feedstocks, proximity to shipping from our vendors and to our customers, and our ability to transfer best practices among our various operating facilities to maximize production volumes and reduce operating costs.

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We estimated the future cash flows from the facilities under construction utilizing the following significant assumptions:

Costs to complete: The remaining costs to complete the plant construction were developed by management, using historical and plant-specific knowledge and external estimates. Management’s estimate of costs included those required to finish the general structure of each facility, as well as furnish it with the appropriate equipment necessary to produce biodiesel. There has not been an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction of a long-lived asset (asset group). There can be no assurance actual costs to complete or upgrade these facilities will be consistent with these estimates.

Gallons sold: We estimated the aggregate gallons to be produced and sold based upon nameplate capacity of the plants under construction coupled with historical operating rates for our existing plants.

Gross margin per gallon: We have estimated rising sales prices and costs after 2013. This annual increase is a consequence of anticipated increased demand for biodiesel, market trends expected for the energy industry and normal inflationary pressures. Biodiesel sales prices were estimated using the expected prices for biodiesel, RINs and co-products. When building the estimate for future prices, we weighed historical evidence, CBOT and NYMEX future prices and industry forecasts. To develop the estimated feedstock prices, we utilized soybean oil as a base coupled with a spread to soybean oil for all other feedstocks based on historical experience and expected future price changes.

Plant operation costs: We estimated plant operation costs to increase with production, until a steady cost level is reached once the plants are operating in a stabilized manner. Plant operating costs are estimated based upon costs at currently operating plants and take into account the size of the plants under construction and production volumes.

Period of time used in recovery analysis: To estimate the period of time utilized in the recovery analysis, we followed the guidance included in ASC Topic 360-10-35-31, which states in part that estimates of future cash flows used to test the recoverability of a long-lived asset (asset group) shall be made for the remaining useful life of the asset (asset group) to the entity. For purposes of this Subtopic, the primary asset is the principal long-lived tangible asset being depreciated or intangible asset being amortized that is the most significant component asset from which the asset group derives its cash-flow-generating capacity. We considered the plant assets and their operational functionality and determined that the inner equipment of the plants, (e.g. tanks, separators, filters, heaters, etc.), is the most significant component of the asset group. We have determined that the useful life of this equipment has a range of 10-30 years depending on its use, with the majority of the equipment having a 20 year life. Therefore, we have selected a 20 year period from the original date the assets are placed into service as the time period over which the cash flows would be projected.

Financing of facilities under construction: In 2008, we halted construction on our New Orleans, Louisiana and Emporia, Kansas facilities as a result of conditions in the biodiesel industry and the credit markets. We continue to pursue financing and intend to complete the facilities when industry conditions improve and financing becomes available on terms satisfactory to us. Since construction halted at these facilities in 2008, we have continued to monitor the construction sites and perform routine maintenance on the partially constructed assets. We also have pursued programs under which we could obtain a government guarantee to enhance our ability to obtain financing for these facilities, but at this point have not been able to obtain any such guarantees. We will continue to pursue such government programs in the future to the extent they arise. If available, we would also consider using funds from operations to fund a portion of the construction at these facilities. As currently configured, the assets can be completed as biodiesel production facilities, or with alternative or additional capabilities for the manufacture of specialty chemicals or other renewable products such as advanced biofuels and renewable chemicals. Some of the existing components could be transported for use at our other production facility locations, or they could be sold to third parties for various uses. The Emporia construction project benefits from a city incentive package that continues through 2018. In addition, from time to time we have had discussions with potential investors and commercial partners regarding these facilities. We have also invested in third party engineering studies to revise and enhance construction completion plans on a more cost effective and profit-driven basis. We cannot assure you if or when such facilities will be completed or any alternate transaction regarding such facilities that we may pursue will be consummated.

Our analysis determined that the undiscounted cash flows of each plant exceeded its carrying value by a significant margin and therefore no charge for impairment was needed.

There were no asset impairment charges for the years ended December 31, 2013, 2012 or 2011.

Goodwill asset valuation. While goodwill is not amortized, it is subject to periodic reviews for impairment. As required by ASC Topic 350, “Intangibles—Goodwill and Other,” we review the carrying value of goodwill for impairment annually on July 31 or when we believe impairment indicators exist. Goodwill is allocated and reviewed for impairment by reporting units. Our reporting units consist of its two operating segments, the biodiesel operating segment and services operating segment. The analysis is based on a comparison of the carrying value of the reporting unit to its fair value, determined utilizing a discounted

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cash flow, or DCF, methodology and consideration of a market approach. Additionally, we review the carrying value of goodwill whenever events or changes in business circumstances indicate that the carrying value of the assets may not be recoverable. Changes in estimates of future cash flows caused by items such as unforeseen events or sustained unfavorable changes in market conditions could negatively affect the fair value of the reporting unit’s goodwill asset and result in an impairment charge.

We engaged an independent external valuation specialist to provide assistance in measuring the fair value of our biodiesel and services reporting units using an income approach. The income approach uses a DCF, analysis based on cash flow estimates prepared by us in addition to comparing other selected public guideline company information. The selected DCF method is an invested capital method. In performing the services reporting unit goodwill impairment analysis, cash flows generated from services provided to third parties and to the biodiesel segment were used to determine the reporting unit’s fair value.

The annual impairment tests as of July 31, 2013 determined that the fair value at the biodiesel operating segment exceeded its value by approximately 43% and the services operating segment exceeded its value by approximately 20%. No impairment of goodwill was recorded in 2013, 2012 or 2011. There can be no assurances that future circumstances and/or conditions will not change, which could result in an impairment of goodwill. Such circumstances and/or conditions could include, but are not limited to, further decline in the price of our common stock, deterioration in our financial condition or results of operations, and/or adverse changes in the fair value of our assets and liabilities. Management continues to monitor circumstances and conditions for events that could result in an impairment of our goodwill.

Our declines in income before income taxes and loss from equity investments for the services reporting unit are primarily a result of construction and MOSA revenues being derived from company-owned facilities during this period and the termination of four third party MOSAs, which occurred in early 2010. As a result, substantially all service revenues are inter-segment revenues. Income before income taxes and loss from equity investments, as it appears in the segment footnote disclosure, presents only the income from third parties after the elimination of intersegment revenues and associated costs. Two of these MOSAs ceased because the facilities to which services were being provided were acquired in a business combinations. During the periods presented in the annual financial statements the amount of service revenues earned from third parties declined, but the amount of service revenues earned from the biodiesel segment increased. After incorporating intersegment revenues, presented in the segment footnote, income before income taxes and loss from equity investments increased from 2011 to 2012 and again from 2012 to 2013. Additionally, the operating results for the services segment were significantly impacted by the improvement in the biodiesel industry induced by the volume requirements set forth in RFS2. Since services revenue from facility management and operations is principally earned on a per gallon basis, improvements in industry production volumes generally yield similar improvements in the services reporting unit operating income, cash flows and estimated fair value. Therefore, we do not believe the recent operational results of the services segment represent an indicator of impairment for the reporting unit.

Income taxes. We evaluate our deferred tax assets to determine if valuation allowances are required or should be adjusted. A valuation allowance is established against our deferred tax assets based on consideration of all available evidence, both positive and negative, using a “more likely than not” standard. This assessment considers, among other matters, the nature, frequency and severity of recent losses, forecasts of future profitability, the duration of statutory carry-forward periods, our experience with tax attributes expiring unused and tax planning alternatives. In making such judgments, significant weight is given to evidence that can be objectively verified.

As a result of excluding certain government incentives from taxable income in 2013, we were in a cumulative loss position for the preceding three years which is considered significant negative evidence that is difficult to overcome on a “more likely than not” standard through objectively verifiable data. While our long-term financial outlook remained positive, we concluded that our ability to rely on our long-term outlook and forecasts as to future taxable income was limited due to uncertainty created by the weight of the negative evidence. As a result, we recorded a valuation allowance offsetting our deferred tax assets.

We recognize tax benefits that are more likely than not to be sustained upon examination by tax authorities. The amount recognized is measured as the largest amount of benefit that is greater than 50 percent likely to be realized upon. We believe there is a reasonable basis in the tax law for all of the positions we take on the various federal and state tax returns we file. However, in recognition of the fact that various taxing authorities may not agree with our position on certain issues, we expect to establish and maintain tax reserves. Significant judgment is required in evaluating our tax positions, including evaluating uncertainties around the technical merits and measurement of our tax position to exclude certain government incentives form taxable income.

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Consolidations. On April 8, 2010, we determined that Landlord was a VIE and consolidated it into our financial statements as we are the primary beneficiary (ASC Topic 810). We had a put/call option with Seneca Holdco to purchase Landlord and we leased the plant for production of biodiesel as of December 31, 2011, both of which represent a variable interest in Landlord that are significant to the VIE. Although we did not have an ownership interest in Seneca Holdco, we determined that we were the primary beneficiary because the equity owners are our stockholders; our ability to direct the activities that most significantly impacted Landlord’s economic performance; and the design of the leasing arrangement that ultimately gave us the majority of the benefit from the use of Landlord’s assets. We elected the fair value option available under ASC Topic 825 on the $4.0 million investment made by Seneca Holdco and the associated put and call options. Changes in the fair value after the date of the transaction were recorded in earnings. Those assets were owned by and those liabilities were obligations of Landlord, which we consolidated as the primary beneficiary. On January 24, 2012, we acquired the Seneca Facility pursuant to the exercise of its option under the Put/Call Agreement. See “Note 5 – Acquisitions and Equity Transactions” to our consolidated financial statements for a description of the acquisition.

During 2007, we invested, through a wholly-owned subsidiary, in Bell, LLC, a VIE joint venture, whereby we own 50% of the outstanding units. Commencing January 1, 2011, we have the right to execute a call option with the joint venture member, Dayton Park, LLC, to purchase Bell, LLC; therefore, we determined we were the primary beneficiary of Bell, LLC and consolidated Bell, LLC into our financial statements in accordance with ASC Topic 810. See “Note 6—Variable Interest Entities” to our consolidated financial statements for a description of the consolidation.

Derivatives instruments and hedging activities. The Financial Accounting Standards Board issued ASC Topic 815-40, “Derivatives and Hedging” or ASC 815-40. ASC 815-40 established accounting and reporting standards for derivative instruments and required that an entity recognize all derivatives as either assets or liabilities in the balance sheet and measure those instruments at fair value. We utilize futures contracts, swaps and options to hedge feedstock purchases and biodiesel sales contracts. We have designated the derivatives as non-hedge derivatives that are utilized to manage cash flow. Additionally, we have entered into an interest rate swap with the objective of managing risk caused by fluctuations in market interest rate risks associated with the REG Danville loan. Unrealized gains and losses on the futures contracts, swaps and options are therefore recognized as a component of biodiesel cost of goods sold, and are reflected in current results of operations. Unrealized gains and losses on the interest rate swap are recorded in other income or expense, net.

Valuation of Preferred Stock Embedded Derivatives. In connection with our IPO on January 24, 2012, we gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly-issued Class A common stock and 2,999,493 shares of Series B Preferred Stock with a $75.0 million aggregate liquidation preference and cumulative dividends of 4.5% per annum. No shares of Series A Preferred Stock remain outstanding after the IPO.

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Results of Operations

Fiscal year ended December 31, 2013 and December 31, 2012

Set forth below is a summary of certain financial information (in thousands) for the periods indicated:

	Twelve Months Ended December 31,
	2013			2012
Revenues
Biodiesel	$	1,207,618		$	1,006,471
Biodiesel government incentives	290,393			8,326
Total biodiesel	1,498,011			1,014,797
Services	127			237
Total	1,498,138			1,015,034
Costs of goods sold
Biodiesel	1,258,549			956,448
Services	156			263
Total	1,258,705			956,711
Gross profit	239,433			58,323
Selling, general and administrative expenses	46,123			42,422
Income from operations	193,310			15,901
Other income (expense), net	(2,009		)	7,812
Income tax expense	(4,935		)	(1,454		)
Net income attributable to REG	186,366			22,259
Effects of recapitalization	—			39,107
Accretion of preferred stock to redemption value	—			(1,808		)
Change in undistributed dividends allocated to preferred stockholders	—			(823		)
Distributed dividends to preferred stockholders	(2,055		)	(3,156		)
Effects of participating preferred stock	(16,272		)	(8,952		)
Effects of participating share-based awards	(2,785		)	(3,145		)
Net income (loss) attributable to the Company’s common stockholders	$	165,254		$	43,482

Revenues. Our total revenues increased $483.1 million, or 48%, to $1,498.1 million for the year ended December 31, 2013, from $1,015.0 million for the year ended December 31, 2012. This increase was primarily due to an increase in gallons sold and the reinstatement of the blenders tax credit that was signed into law on January 2, 2013:

Biodiesel. Biodiesel revenues including government incentives increased $483.2 million, or 48%, to $1,498.0 million during the year ended December 31, 2013, from $1,014.8 million for the year ended December 31, 2012. This increase in biodiesel revenues was due to an increase in gallons sold and $282.1 million increase in biodiesel government incentives from 2012 to 2013. Of these increases, $57.7 million was a net benefit reflecting the retroactive application of the blenders tax credit for 2012. The increase in gallons sold reflects increased throughput across our production facilities due to upgrades to our existing facilities and the addition of REG New Boston and REG Mason City. Due to lower RIN and energy prices in 2013, our average B100 sales price per gallon decreased $0.02, or 1%, to $4.58 during the year ended December 31, 2013, compared to $4.60 during the year ended December 31, 2012. The decrease in average sales price from 2012 to 2013 contributed to a $3.8 million revenue decrease when applied to the number of gallons sold during 2012. Gallons sold increased 70.2 million, or 37%, to 258.6 million during the year ended December 31, 2013, compared to 188.4 million during the year ended December 31, 2012. The increase in gallons for the year ended December 31, 2013 accounted for a revenue increase of $322.9 million using 2013 average sales pricing. Sales of separated RIN inventory were $143.5 million and $61.6 million for the years ending December 31, 2013 and 2012, respectively.

Services. Services revenues decreased from the prior year. Service revenues were $0.1 million and $0.2 million for the year ended December 31, 2013 and 2012.

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Costs of goods sold. Our costs of goods sold increased $302.0 million, or 32%, to $1,258.7 million for the year ended December 31, 2013, from $956.7 million for the year ended December 31, 2012. Costs of goods sold as a percentage of revenues were 84% and 94% for the years ended December 31, 2013 and 2012, respectively. The decrease in costs of goods sold as a percentage of revenues in 2013 was primarily due to higher revenues per gallon from reinstatement of the blenders tax credit and lower feed stock costs:

Biodiesel. Biodiesel costs of goods sold increased $302.1 million, or 32%, to $1,258.5 million for the year ended December 31, 2013, compared to $956.4 million for the year ended December 31, 2012. The increase in biodiesel costs of goods sold is primarily the result of the additional gallons sold in the 2013 period partially offset by slightly lower feedstock prices in 2013 as compared to 2012. Average lower cost feedstocks prices for the year ended December 31, 2013 was $0.39 per pound, compared to $0.43 per pound for the year ended December 31, 2012. Soybean oil costs for the year ended December 31, 2013 was $0.45 per pound in comparison to $0.55 per pound for the year ended December 31, 2012. We had losses of $5.7 million from risk management trading activity for the year ended December 31, 2013, compared to losses of $4.6 million from risk management trading for the year ended December 31, 2012, respectively. Biodiesel costs of goods sold as a percentage of revenues were 84% and 94% for the years ended December 31, 2013 and 2012, respectively. The decrease in biodiesel cost of goods sold as a percentage of revenues in 2013 was primarily due to revenues from the reinstated blenders tax credit and higher biodiesel prices as well as declining feedstock prices when compared to 2012. In addition, the decrease in the value of RINs during 2013 resulted in a $2.9 million write-down to lower of cost or market on RIN inventory held throughout the year compared to a write-down of $19.6 million during 2012. Costs of goods sold for separated RIN inventory sales were $144.0 million and $83.1 million for the years ending December 31, 2013 and 2012, respectively.

Services. Costs of services decreased $0.1 million to $0.2 million for the year ended December 31, 2013, from $0.3 million for the year ended December 31, 2012.

Selling, general and administrative expenses. Our selling, general and administrative, or SG&A, expenses were $46.1 million for the year ended December 31, 2013, compared to $42.4 million for the year ended December 31, 2012. SG&A expenses increased $3.7 million, or 9%, for the year ended December 31, 2013. We incurred a $1.7 million increase in professional fee expense, a $1.3 million increase in meeting and travel, $0.4 million increase in depreciation expense and an increase of $0.6 million related to computer expenses. This increase was offset by a $0.3 million decrease in the provision for bad debt expense and a decrease of $1.7 million in wages and benefits expense, which is mostly made up of a decrease in non-cash stock compensation expense of $7.7 million and an increase of $4.3 million in expense related to the annual incentive plan based upon achievement of certain operating and financial results for the respective years.

Other income (expense), net. Other expense was $2.0 million for the year ended December 31, 2013 compared to other income of $7.8 million for the year ended December 31, 2012. Other income is primarily comprised of the changes in fair value of the Series A Preferred Stock conversion feature embedded derivative, changes in fair value of Seneca Holdco liability, interest expense, interest income and the other non-operating items. The change in fair value of the Series A Preferred Stock conversion feature embedded derivative resulted in $12.0 million of income for the year ended December 31, 2012. The change in fair value of the Seneca Holdco liability was $0.3 million of revenue for the year ended December 31, 2012. Interest expense decreased $2.3 million to $2.4 million for the year ended December 31, 2013, from $4.7 million for the year ended December 31, 2012. This decrease was primarily attributable to a decrease in in term debt.

Income tax expense. There was income tax expense recorded during the year ended December 31, 2013 of $4.9 million, compared to an income tax expense of $1.5 million for the year ended December 31, 2012. At December 31, 2013 and 2012, we had net deferred income tax assets of approximately $70.5 million and $3.5 million, respectively, with a valuation allowance of $76.9 million and $0 million, respectively, partially offset by an accrued liability of $1.9 million for both periods related to uncertain tax benefits. As a result, our effective tax rate was 2.7% and 6.1% for the years ended December 31, 2013 and 2012, respectively. We have an income tax receivable of $2.2 million and $4.7 million as of December 31, 2013 and 2012, respectively.

Effects of Recapitalization. In January 2012, we completed an initial public offering of our common stock. Due to the IPO, we recorded the effects from recapitalization of $39.1 million. To account for the exchange of Series A Preferred Stock for the newly issued Series B Preferred Stock and common stock, we compared the fair value of the Series B Preferred Stock and common shares issued to the carrying amount of the Series A preferred shares that were redeemed. The excess of the carrying amount of Series A Preferred Stock that were redeemed over the fair value of the Series B Preferred Stock and common stock that was issued was recorded as an increase to additional paid-in capital and was added to net earnings available to common shareholders.

Preferred stock accretion. There was no preferred stock accretion during the year ended December 31, 2013, compared to $1.8 million for the year ended December 31, 2012 associated with the Series A Preferred Stock that was terminated upon completion of the IPO. During January 2012, as part of our IPO and the conversion of the Series A Preferred Stock to Series B

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Preferred Stock, the accretion of the Series A Preferred Stock was terminated and we determined that no accretion was deemed necessary on the newly issued Series B Preferred Stock. See “Note 4 – Redeemable Preferred Stock” in our consolidated financial statements for a description of the transaction.

Change in undistributed dividends. Undistributed preferred stock dividends were $0 million and $0.8 million for the years ended December 31, 2013 and 2012, respectively. During January 2012, the Series A Preferred Stock converted to Series B Preferred Stock as part of our IPO. All previous undistributed dividends were cancelled as part of the conversion. The new Series B Preferred Stock agreement requires us to pay dividends on a semi-annual basis.

Distributed dividends. Distributed preferred stock dividends were $2.1 million and $3.2 million for the years ended December 31, 2013 and 2012, respectively. Based upon the terms of the Series B Preferred Stockholders, we are required to pay dividends to stockholders on a semi-annual basis. The dividends were paid in June and December of 2013 and 2012.

Effects of participating preferred stock. Effects of participating preferred stock was $16.3 and $9.0 million for the years ended December 31, 2013 and 2012, respectively.

Effects of participating share-based awards. Effects of participating restricted stock units was $2.8 and $3.1 million for the years ended December 31, 2013 and 2012, respectively.

Fiscal year ended December 31, 2012 and December 31, 2011

Set forth below is a summary of certain financial information (in thousands) for the periods indicated:

	Twelve Months Ended December 31,
	2012			2011
Revenues
Biodiesel	$	1,006,471		$	757,987
Biodiesel government incentives	8,326			65,822
Total biodiesel	1,014,797			823,809
Services	237			222
Total	1,015,034			824,031
Costs of goods sold
Biodiesel	956,448			696,622
Services	263			198
Total	956,711			696,820
Gross profit	58,323			127,211
Selling, general and administrative expenses	42,422			34,479
Income from operations	15,901			92,732
Other income (expense), net	7,812			(1,323		)
Income tax expense	(1,454		)	(2,982		)
Income from equity investments	—			442
Net income attributable to REG	22,259			88,869
Effects of recapitalization	39,107			—
Accretion of preferred stock to redemption value	(1,808		)	(25,343		)
Change in undistributed dividends allocated to preferred stockholders	(823		)	(12,723		)
Distributed dividends to preferred stockholders	(3,156		)	—
Effects of participating preferred stock	(8,952		)	(4,186		)
Effects of participating share-based awards	(3,145		)	(3,864		)
Net income attributable to the Company’s common stockholders	$	43,482		$	42,753

Revenues. Our total revenues increased $191.0 million, or 23%, to $1,015.0 million for the year ended December 31, 2012, from $824.0 million for the year ended December 31, 2011. This increase was primarily due to an increase in gallons sold as follows:

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Biodiesel. Biodiesel revenues including government incentives increased $191.0 million, or 23%, to $1,014.8 million during the year ended December 31, 2012, from $823.8 million for the year ended December 31, 2011. This increase in biodiesel revenues was due to an increase in gallons sold. Due to lower RIN and energy prices in 2012, our average B100 sales price per gallons decreased $0.63, or 12%, to $4.60 during the year ended December 31, 2012, compared to $5.23 during the year ended December 31, 2011. The decrease in average sales price from 2011 to 2012 contributed to a $90.8 million revenue decrease when applied to the number of gallons sold during 2011. Gallons sold, excluding tolled gallons, increased 44.2 million, or 31%, to 188.4 million during the year ended December 31, 2012, compared to 144.2 million during the year ended December 31, 2011. The increase in gallons for the year ended December 31, 2012 accounted for a revenue increase of $203.3 million using pricing for the year 2012. We did not toll manufacture any gallons in 2012 for others, compared to 2011 when we tolled 5.6 million gallons at the REG Houston facility. This increase in gallons sold reflects increased production capacity at our Seneca facility and the Albert Lea facility. The $57.5 million decrease in biodiesel government incentives for the year ended December 31, 2012 was due to blenders tax credit expiring on December 31, 2011. The credit was reinstated on January 2, 2013 retroactively for 2012 through December 31, 2013.

Services. Services revenues remained unchanged from the prior year. Service revenues were $0.2 million for the year ended December 31, 2012 and 2011. This was due to our decision to cancel our remaining MOSAs during 2010.

Costs of goods sold. Our costs of goods sold increased $259.9 million, or 37%, to $956.7 million for the year ended December 31, 2012, from $696.8 million for the year ended December 31, 2011. This increase was primarily due to costs associated with the increase in gallons sold in the 2012 period as follows:

Biodiesel. Biodiesel costs of goods sold increased $259.8 million, or 37%, to $956.4 for the year ended December 31, 2012, compared to $696.6 million for the year ended December 31, 2011. The increase in biodiesel costs of goods sold is primarily the result of the additional gallons sold in the 2012 period partially offset by slightly lower feedstock prices in 2012 as compared to 2011. Average lower cost feedstocks prices for the year ended December 31, 2012 was $0.43 per pound, compared to $0.47 per pound for the year ended December 31, 2011. Soybean oil costs for the year ended December 31, 2012 was $0.55 per pound, and was $0.58 per pound for the year ended December 31, 2011. We had losses of $4.6 million from risk management trading activity for the year ended December 31, 2012, compared to gains of $3.0 million from risk management trading for the year ended December 31, 2011, respectively. Our increased losses were largely due to a decrease in soybean oil prices in September 2012 and an increase in heating oil prices during the third quarter of 2012 which resulted in reduced market value of our derivative financial instruments related to fourth quarter biodiesel sales. In addition, the decrease in the value of RINs during 2012 resulted in a $19.6 million write-down to lower of cost or market on RIN inventory held throughout the year.

Services. Costs of services increased $0.1 million to $0.3 million for the year ended December 31, 2012, from $0.2 million for the year ended December 31, 2011. Costs incurred to perform services under the MOSAs decreased due to our decision to cancel the MOSAs during 2010.

Selling, general and administrative expenses. Our selling, general and administrative, or SG&A, expenses were $42.4 million for the year ended December 31, 2012, compared to $34.5 million for the year ended December 31, 2011. SG&A expenses increased $7.9 million, or 23%, for the year ended December 31, 2012. The increase was primarily related to the additional non-cash stock compensation expense of $13.1 million for the year ended December 31, 2012, compared to $5.9 million for the year ended December 31, 2011. We also incurred a $0.5 million increase in insurance expense, a $0.4 million increase in advertising and an increase of $0.4 million related to computer expenses. This increase was offset by a $0.8 million decrease in the provision for bad debt expense and a decrease of $0.9 million in professional fee expense. During 2012 and 2011, we accrued $1.6 million and $3.6 million, respectively in expense related to the annual incentive plan based upon achievement of certain operating and financial results for the respective years.

Other income (expense), net. Other income was $7.8 million for the year ended December 31, 2012 compared to other expense of $1.3 million for the year ended December 31, 2011. Other income is primarily comprised of the changes in fair value of the Series A Preferred Stock conversion feature embedded derivative, changes in fair value of Seneca Holdco liability, interest expense, interest income and the other non-operating items. The change in fair value of the Series A Preferred Stock conversion feature embedded derivative resulted in $12.0 million of income for the year ended December 31, 2012 and $7.9 million of income for the year ended December 31, 2011. The change in fair value of the Seneca Holdco liability was $0.3 million of revenue for the year ended December 31, 2012 and was $2.1 million of expense for the year ended December 31, 2011. Interest expense decreased $3.4 million to $4.7 million for the year ended December 31, 2012, from $8.1 million for the year ended December 31, 2011. This decrease was primarily attributable to a decrease in the amortization expense associated with debt financing fees taken during the 2012 year compared to 2011, as well as the decrease in term debt for the same period.

Income tax expense. There was income tax expense recorded during the year ended December 31, 2012 of $1.5 million, compared to an income tax expense of $3.0 million for the year ended December 31, 2011. During 2010, deferred tax liabilities

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were recorded as a result of the Blackhawk Merger and CIE Asset Acquisition. As the deferred tax liabilities were recorded, the resulting decrease in net deferred tax assets required a lower valuation allowance. The release of the associated valuation allowance recorded after finalization of the Blackhawk and CIE purchase accounting transactions resulted in an income tax benefit for the year ended December 31, 2010. During the third quarter 2011, we revised our forecasted taxable income for year end and projected we would incur an income tax liability for the twelve-months ending December 31, 2011. The forecasted income tax liability results from a significant increase in taxable income, as well as, limitations on our ability to utilize our entire carry-forward net operating losses in 2011. At December 31, 2012, we had net deferred income tax assets of approximately $3.5 million with no valuation allowance, partially offset by an accrued liability of $1.9 million for uncertain tax benefits. We have an income tax receivable of $4.7 million as of December 31, 2012.

Income (loss) from equity investments. There was no gain or loss from equity investments during 2012 compared to a gain of $0.4 million for the year ended December 31, 2011. The change is due to the change of investments from equity method to cost method during the last half of 2010 coupled with a gain of $0.7 from our investment in SoyMor biodiesel when we purchased the assets of SoyMor during July 2011.

Effects of Recapitalization. In January 2012, we completed an initial public offering of our common stock. Due to the IPO, we recorded the effects from recapitalization of $39.1 million. To account for the exchange of Series A Preferred Stock for the newly issued Series B Preferred Stock and common stock, we compared the fair value of the Series B Preferred Stock and common shares issued to the carrying amount of the Series A preferred shares that were redeemed. The excess of the carrying amount of Series A Preferred Stock that were redeemed over the fair value of the Series B Preferred Stock and common stock that was issued was recorded as an increase to additional paid-in capital and was added to net earnings available to common shareholders.

Preferred stock accretion. Preferred stock accretion was $1.8 million for the year ended December 31, 2012, compared to $25.3 million for the year ended December 31, 2011 associated with the Series A Preferred Stock that was terminated upon completion of the IPO. During January 2012, as part of our IPO and the conversion of the Series A Preferred Stock to Series B Preferred Stock, the accretion of the Series A Preferred Stock was terminated and we determined that no accretion was deemed necessary on the newly issued Series B Preferred Stock. See “Note 4 – Redeemable Preferred Stock” in our consolidated financial statements for a description of the transaction.

Change in undistributed dividends. Undistributed preferred stock dividends were $0.8 million and $12.7 million for the years ended December 31, 2012 and 2011, respectively. During January 2012, the Series A Preferred Stock converted to Series B Preferred Stock as part of our IPO. All previous undistributed dividends were cancelled as part of the conversion. The new Series B Preferred Stock agreement requires us to pay dividends on a semi-annual basis.

Distributed dividends. Distributed Preferred Stock dividends were $3.2 million and $0 million for the years ended December 31, 2012 and 2011, respectively. Based upon the terms of the Series B Preferred Stockholders, we are required to pay dividends to stockholders on a semi-annual basis. The dividends were paid in June 2012 and December 2012.

Effects of participating preferred stock. Effects of participating preferred stock was $9.0 and $4.2 million for the years ended December 31, 2012 and 2011, respectively. During the fourth quarter 2011 and the year ended December 31, 2012, we had participation of preferred stockholders in net income attributable to REG.

Effects of participating share-based awards. Effects of participating restricted stock units was $3.1 and $3.9 million for the years ended December 31, 2012 and 2011, respectively. During the fourth quarter 2011 and the year ended December 31, 2012, we had participation of restricted stock units in net income attributable to REG.

Liquidity and Capital Resources

Sources of liquidity. Since inception, a significant portion of our operations have been financed through the sale of our capital stock. From August 1, 2006 through December 31, 2013, we received cash proceeds of $201.0 million from sales of preferred stock and sales of common stock. At December 31, 2013 and 2012, we had cash and cash equivalents of $153.2 million and $66.8 million, respectively. At December 31, 2013, we had total assets of $740.9 million, compared to total assets of $495.8 million at December 31, 2012. At December 31, 2013, we had term debt of $34.2 million, compared to term debt of $37.0 million at December 31, 2012.

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Our term borrowings (in millions) are as follows:

	December 31,
	2013		2012
REG Danville term loan	$	5.6	$	10.1
REG Newton term loan	18.1		21.2
REG Mason City term loan	5.1		—
Other	1.4		1.4
Total notes payable	$	30.2	$	32.7
Bell, LLC promissory note	$	4.0	$	4.3

Our revolving borrowings (in millions) are as follows:

	December 31,
	2013		2012
Revolving lines of credit	$	11.0	$	—

REG Danville, LLC

On November 3, 2011, REG Danville, LLC entered into an Amended and Restated Loan Agreement with Fifth Third Bank, or the Fifth Third Loan. The renewed Fifth Third Loan had a three year term with an automatic one year extension upon certain cumulative principal payment thresholds being met. The loan requires monthly principal payments of $150,000 and interest to be charged using LIBOR plus 5% per annum. The Fifth Third Loan is secured by our Danville facility. The loan agreement contains various loan covenants that restrict REG Danville’s ability to take certain actions, including prohibiting it in certain circumstances from making payments to us. Beginning on December 31, 2011, we are required to make semi-annual principal payments in an amount equal to 50% of REG Danville's Excess Cash Flow. The Fifth Third Loan agreement defines Excess Cash Flow as REG Danville’s EBITDA plus certain affiliate payments less principal payments, interest expense, taxes and unfunded maintenance capital expenditures. The Excess Cash Flow payment for December 31, 2013 and 2012 was $1.4 million, respectively. As of December 31, 2013, there was $5.6 million outstanding under the Fifth Third Loan.

On March 4, 2013, REG Danville entered into the First Amendment to the Amended and Restated Loan Agreement, or the First Amendment, with Fifth Third Loan. The First Amendment includes changes to the debt covenants upon us executing a tax sharing agreement with REG Danville. The tax sharing agreement provides that REG Danville will share the liability for income taxes via an allocation based upon a separate-return approach. Although we are not directly compensated for the use of carry-forward attributes, the tax sharing agreement allows each affiliate to benefit from net operating losses and tax credits that each generates.

On January 28, 2014, REG Danville received approval from Fifth Third Bank of extending the maturity date of its debt to November 3, 2015 based on meeting requirements of cumulative principal payments of $6.4 million towards the debt.

REG Newton, LLC

On March 8, 2010, in connection with the CIE Asset Acquisition, one of our subsidiaries, REG Newton, refinanced a $23.6 million term loan, or the AgStar Loan, and obtained a $2.4 million line of credit, or the AgStar Line, with AgStar Financial Service, PCA, or AgStar. This amount is secured by our Newton facility. The AgStar Loan bears interest at 3% plus the greater of (i) LIBOR or (ii) 2%. Beginning on October 1, 2011, monthly principal payments of approximately $120,000 and accrued interest was due based on a 12-year amortization period.

On December 4, 2013, REG Newton, LLC entered into an Amended and Restated Master Loan Agreement, effective December 1, 2013, with AgStar Financial Services, PCA (Agstar) which replaced the existing Master Loan Agreement, dated March 8, 2010. The Amended and Restated Agreement extends the maturity of the existing term loan by five years until December 1, 2018 and increases the term loan by $5.0 million.The REG Newton term debt is secured by all plant assets owned by REG Newton. Interest is to be accrued based on 30-day LIBOR plus 400 basis points. REG Newton is required to make principal and interest payments of approximately $0.3 million. The loan agreement requires REG Newton to make an annual payment equal to 50% of its Excess Cash Flow calculated based upon the prior year’s audited financial statements within 120 days of the fiscal year end. The AgStar Loan agreement defines Excess Cash Flow as EBITDA, less the sum of required debt

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payments, interest expense, up to $0.5 million in maintenance capital expenditure and allowed distributions.There were no required excess cash flow payments for 2013 or 2012. As of December 31, 2013, there was $18.1 million of principal outstanding under the term loan.

REG Marketing & Logistics Group, LLC & REG Services Group, LLC

In December 2011, we entered into a revolving credit agreement with the lenders thereto and Wells Fargo Capital Finance, LLC, as agent, which we refer to as the Wells Fargo Revolver. The Wells Fargo Revolver provides for the extension of revolving loans in an aggregate principal amount not to exceed $40.0 million, based on eligible inventory, accounts receivable and blenders credits of the subsidiary borrowers and the inventory of certain affiliates. As of December 31, 2013, our additional availability under the Wells Fargo revolver was $20.0 million. The Wells Fargo Revolver has a stated maturity date of December 23, 2016. Our available borrowing capacity under the Wells Fargo Revolver was $28.0 million and amounts outstanding were $11.0 million as of December 31, 2013.

Amounts borrowed under the Wells Fargo Revolver bear interest, in the case of LIBOR rate loans, at a per annum rate equal to the LIBOR rate plus the LIBOR Rate Margin (as defined), which may range from 2.50 to 3.25 percent, based on the Quantity Average Excess Availability Amount (as defined). All other amounts borrowed that are not LIBOR rate loans bear interest at a rate equal to the greatest of (i) (A) 1.75% per annum, (B) the Federal Funds Rate plus 0.5%, (C) the LIBOR Rate (which rate shall be calculated based upon an interest period of three months and will be determined on a daily basis), plus 1.5% points, and (D) the rate of interest announced, from time to time, within Wells Fargo Bank, National Association at its principal office in San Francisco as its “prime rate,” plus (ii) the Base Rate Margin (as defined in the Credit Agreement), which may range from 1.00 to 1.75 percent, based on the Quantity Average Excess Availability Amount. The Base Rate Margin is subject to reduction or increase depending on the amount available for borrowing under the new revolving credit agreement.

The Wells Fargo Revolver contains various loan covenants that restrict each subsidiary borrower’s ability to take certain actions, including restrictions on incurrence of indebtedness, creation of liens, mergers or consolidations, dispositions of assets, repurchase or redemption of capital stock, making certain investments, entering into certain transactions with affiliates or changing the nature of the subsidiary’s business. In addition, the subsidiary borrowers are required to maintain a Fixed Charge Coverage Ratio (as defined in the Wells Fargo Revolver) of at least 1.0 to 1.0 and to have Excess Availability (as defined in the Wells Fargo Revolver) of at least $4 million. The Wells Fargo Revolver is secured by the subsidiary borrowers’ membership interests and substantially all of their assets, and the inventory of REG Albert Lea, LLC, REG Houston, LLC, and REG New Boston, LLC, subject to a $25 million limitation.

Bell, LLC

We have 50% ownership in Bell, LLC, a VIE joint venture that owns and leases to us its corporate office building located in Ames, Iowa. Commencing January 1, 2011, we have the right to execute a call option with the joint venture member, Dayton Park, LLC, to purchase Bell, LLC; therefore, we determined it was the primary beneficiary of Bell, LLC and consolidated Bell, LLC into our financial statements. We are the primary beneficiary due to its ownership interest and as a result of having an exercisable call option that allows us to direct the activities that most significantly impact Bell, LLC’s economic performance and gives us the majority of the benefit from the use of Bell, LLC’s assets. Through consolidation of Bell, LLC on January 1, 2011, we recorded an outstanding promissory note balance of $4.8 million. Bell, LLC makes monthly principal payments of approximately $0.02 million plus interest. The note bears interest at a rate of 3.50% per annum and the note matures January 14, 2018. The note is secured by a mortgage interest in the office building and has an outstanding balance of $4.0 million at December 31, 2013.

REG Mason City, LLC

On July 30, 2013, REG Mason City entered into an agreement with Soy Energy, or Soy Energy Loan. The Soy Energy Loan has a six-year term and is secured by our Mason City facility. The loan requires interest only payments for the first eight months and monthly principal and interest payments of approximately $92,000 starting in April 2014. Interest is based on a fixed rate of 5%. The loan agreement contains a covenant that restricts REG Mason City's ability to take certain actions, including prohibiting it in certain circumstances from making payments to us. The Soy Energy Loan requires annual excess cash flow payments beginning on December 31, 2013. REG Mason City must pay Soy Energy a principal payment in the amount equal to 50% of its excess cash flow. As of December 31, 2013, the balance on the loan was $5.1 million.

REG Ralston, LLC

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In September 2009, we entered into an extended payment terms agreement with West Central to provide up to $3.0 million in outstanding payables for up to 45 days. Both of these agreements provided additional working capital resources to us. As of December 31, 2013, we had $0.6 million outstanding under the West Central agreement.

We and our subsidiaries were in compliance with all restrictive financial covenants associated with the borrowings.

Cash flow. The following table presents information regarding our cash flows and cash and cash equivalents for the years ended December 31, 2013, 2012 and 2011:

	Year Ended December 31,
	2013			2012			2011
				(in thousands)
Net cash flows provided from operating activities	$	139,645		$	44,619		$	51,194
Net cash flows used in investing activities	(54,389		)	(14,546		)	(2,120		)
Net cash flows provided from (used in) financing activities	1,186			3,137			(19,758		)
Net change in cash and cash equivalents	86,442			33,210			29,316
Cash and cash equivalents, end of period	$	153,227		$	66,785		$	33,575

Operating activities. Net cash provided from operating activities was $139.6 million for the year ended December 31, 2013. For 2013, net income was $186.4 million, which includes depreciation and amortization expense of $9.2 million, stock compensation expense of $5.4 million and an increase in expense for deferred taxes of $9.9 million. We also used $72.4 million to fund net working capital requirements, consisting of a $40.6 million increase in inventory, $64.5 million increase in accounts receivable, a $10.0 million increase in prepaid expenses and a increase in deferred revenues of $15.5 million, which was partially offset by a $27.2 million increase in accounts payable and accruals.

Net cash provided from operating activities was $44.6 million for the year ended December 31, 2012. For 2012, net income was $22.3 million, which includes depreciation and amortization expense of $7.9 million, stock compensation expense of $13.1 million, a decrease in the non-cash change in the preferred stock embedded derivative liability of $12.0 million, a decrease in the non-cash change in the Seneca Holdco, LLC liability of $0.2 million, a decrease of $7.1 million for the premium paid to Seneca Landlord on the original investment and an increase in expense for deferred taxes and uncertain tax positions of $3.0 million. We also provided $15.2 million to fund net working capital requirements, consisting of a $3.1 million increase in inventory, $32.0 million decrease in accounts receivable, a $0.4 million increase in prepaid expenses and a decrease in deferred revenues of $6.7 million, which was partially offset by a $6.6 million decrease in accounts payable and accruals. Net cash provided from operating activities was $51.2 million for the year ended December 31, 2011. For 2011, net income was $88.9 million, which includes depreciation and amortization expense of $9.5 million, stock compensation expense of $5.9 million, a decrease in the non-cash change in the preferred stock embedded derivative liability of $7.9 million and an increase in the non-cash change in the Seneca Holdco, LLC liability of $1.5 million. We also used $42.5 million to fund net working capital requirements, consisting of a $13.0 million increase in inventory due to increase sales volume, $35.4 million increase in accounts receivable, a $12.0 million increase in prepaid expenses and a decrease in deferred revenues of $2.6 million, which was partially offset by a $20.5 million increase in accounts payable and accruals. The net result was a cash source from operations of $51.2 million.

Investing activities. Net cash used in investing activities for the year ended December 31, 2013 was $54.4 million, consisting of net cash used to pay for facility construction of $39.1 million for upgrades at REG Albert Lea, REG New Boston, REG Mason City and REG Seneca. We also used cash to pay for an acquisition of Soy Energy, LLC in the amount of $10.9 million and $4.7 million for other investments.

Net cash used in investing activities for the year ended December 31, 2012 was $14.5 million, consisting of net cash used to pay for facility construction of $12.7 million for upgrades at REG Albert Lea and REG Seneca and cash used to pay for three acquisitions in the amount of $1.8 million. Net cash used for investing activities for the year ended December 31, 2011 was $2.1 million, consisting of net cash used to pay for facility construction of $4.8 million and cash provided from the release of restricted cash in the amount of $2.7 million.

Financing activities. Net cash provided from financing activities for the year ended December 31, 2013 was $1.2 million. We paid $0.3 million related to the net exercise of certain restricted stock units, $1.3 million for the payment of preferred stock dividends and $0.2 million for debt issuance cost. We drew $11.0 million on our line of credit, borrowed $3.0 million of term debt and paid down $11.0 million of term debt.

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Net cash provided from financing activities for the year ended December 31, 2012 was $3.1 million. We received $63.7 million from the completion of our IPO before expenses. We paid $1.7 million for the issuance of common stock and preferred stock related to the IPO, $3.1 million related to the net exercise of certain restricted stock units, $3.2 million for the payment of preferred stock dividends and $0.1 million for debt issuance cost. We paid down $4.0 million on our line of credit, repaid $4.0 million for the investment in Seneca Landlord and paid down $44.5 million of term debt, which mostly related to paying off in full the term debt at REG Seneca. Net cash used for financing activities for the year ended December 31, 2011 was $19.8 million. We paid down $7.7 million on the Danville note and $3.0 million on other term notes. Our net decrease on revolving line of credits was $5.5 million. We also paid $2.2 million for the pending issuance of common stock and $1.4 million for debt issuance cost.

Capital expenditures. We have three partially constructed plants, one near New Orleans, Louisiana, one in Emporia, Kansas, one in Clovis, New Mexico and one non-operational plant near Atlanta, Georgia. We expect additional investments of approximately $145 to $160 million in the aggregate, excluding working capital requirements, may be invested before these plants would be able to commence production. These facilities would add an expected 150 mmgy. Our Clovis plant is currently being operated as a terminal facility. We plan to make significant capital expenditures when debt or equity financing becomes available to complete construction of these four facilities. In 2013, we completed upgrades to our Albert Lea facility, our New Boston facility, our Mason City facility and our Seneca facility. We completed capital projects related to these facility upgrades of approximately $22 million, $4 million, $1 million and $5 million, respectively, in 2013. We also plan to undertake an additional $20 million upgrade at our Mason City facility along with various facility upgrades at our existing facilities to further expand processing capabilities. We may enter into additional tolling arrangements with third parties from time to time where third parties will produce biodiesel on our behalf using our feedstocks. Such arrangements may require investments of additional working capital during the tolling periods.

We continue to be in discussions with lenders in an effort to enter into equity and debt financing arrangements to meet our projected financial needs for facilities under construction and capital improvement projects for our operating facilities. Since these discussions are ongoing, we are uncertain when or if financing will be available. The financing may consist of common or preferred stock, debt, project financing or a combination of these financing techniques. Additional debt would increase our leverage and interest costs and would likely be secured by certain of our assets. Additional equity or equity-linked financings would likely have a dilutive effect on our existing and future stockholders. It is likely that the terms of any project financing would include customary financial and other covenants on our project subsidiaries, including restrictions on the ability to make distributions, to guarantee indebtedness and to incur liens on the plants of such subsidiaries.

Series B Preferred Stock

In connection with the recapitalization of our capital stock, we issued an aggregate of three million shares of Series B Preferred Stock to former holders of our Series A Preferred Stock. Holders of our Series B Preferred Stock are entitled to receive cumulative dividends semi-annually in arrears on June 30 and December 30 of each year at an annual rate of $1.125 per share. We may, at our option, defer a regularly scheduled dividend payment and instead pay accumulated and unpaid dividends on the following dividend payment date; however, we may only defer two such dividend payments and may not defer consecutive dividend payments. We may pay any dividend in cash, by delivering shares of Common Stock, or through any combination of cash and shares of Common Stock. If we elect to make any such payment by delivering shares of Common Stock, those shares will be valued at the average of the daily volume weighted average price of the Common Stock on each of the ten consecutive trading days ending on the trading day immediately preceding the record date for that dividend. During 2013, we paid our June 30 and December 30 dividend payments which totaled $1.3 million.

During 2013, there were 2,851,793 shares of Series B Preferred Stock converted to 5,763,508 shares of common stock. The amount of Series B Preferred Stock outstanding was 143,313 shares at December 31, 2013.

On June 30, 2015, each holder of our Series B Preferred Stock may require us to redeem their shares of Series B Preferred Stock at a price per share equal to $25 per share plus any accumulated and unpaid dividends. As of the date of this filing, the amount of this potential obligation would be approximately $3.6 million.

Contractual Obligations:

The following table describes our commitments to settle contractual obligations in cash as of December 31, 2013:

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	Payments Due by Period
	Total		Less Than 1 Year		Years 1-3		Years 4-5		More Than 5 Years
	(In thousands)
Long Term Debt (1)	$	39,412	$	8,740	$	18,491	$	12,181	$	—
Operating Lease Obligations (2)	76,788		11,948		26,596		15,402		22,842
Purchase Obligations (3)	44,625		44,475		150		—		—
Other Long-Term Liabilities (4)	2,061		40		121		—		—
	$	162,886	$	65,203	$	45,358	$	27,583	$	22,842

(1) See footnotes to the financial statements for additional detail. Includes fixed interest associated with these obligations.

(2) Operating lease obligations consist of terminals, rail cars, vehicles and ground leases.

(3) Purchase obligations for our production facilities and partially completed facilities.

(4) Includes incentive compliance and other facility obligations. Also, represents $1.9 million of liability for unrecognized tax benefits as the timing and amounts of cash payments are uncertain the amounts have not been classified by period.

Adjusted EBITDA

We use earnings before interest, taxes, depreciation and amortization, adjusted for certain additional items, identified in the table below, or Adjusted EBITDA, as a supplemental performance measure. We present Adjusted EBITDA because we believe it assists investors in analyzing our performance across reporting periods on a consistent basis by excluding items that we do not believe are indicative of our core operating performance. In addition, we use Adjusted EBITDA to evaluate, assess and benchmark our financial performance on a consistent and a comparable basis and as a factor in determining incentive compensation for our executives.

The following table provides our Adjusted EBITDA for the periods presented, as well as a reconciliation to net income:

													Year ended December 31,															Year ended December 31,
(In thousands)	1Q-2013			2Q-2013			3Q-2013			4Q-2013			2013			1Q-2012			2Q-2012			3Q-2012			4Q-2012			2012
Net income (loss)	$	46,403		$	23,130		$	86,703		$	30,130		$	186,366		$	14,017		$	14,433		$	(6,040	)	$	(151	)	$	22,259
Adjustments:
Income tax (benefit) expense	30,189			15,314			(42,051		)	1,483			4,935			1,363			4,471			(2,165		)	(2,215		)	1,454
Interest expense	576			604			577			640			2,397			1,053			1,059			1,150			1,417			4,679
Other income (expense), net	(117		)	(93		)	(66		)	(112		)	(388		)	(37		)	(28		)	(56		)	(46		)	(167		)
Change in fair value of Seneca Holdco liability	—			—			—			—			—			(349		)	—			—			—			(349		)
Change in fair value of preferred stock conversion feature embedded derivatives	—			—			—			—			—			(11,975		)	—			—			—			(11,975		)
Stock issued for glycerin agreement termination	—			—			—			—			—			1,898			—			—			—			1,898
Straight-line lease expense	(159		)	(162		)	(163		)	(162		)	(646		)	(102		)	(104		)	(31		)	(51		)	(288		)
Depreciation	2,080			2,296			2,598			2,731			9,705			2,026			2,069			2,097			1,832			8,024
Amortization	(199		)	(191		)	(181		)	(181		)	(752		)	(139		)	(206		)	(208		)	(200		)	(753		)
Non-recurring business interruption (1)	(863		)	—			—			—			(863		)	—			—			—			863			863
Blenders tax credit (2)	(57,372		)	(373		)	—			—			(57,745		)	10,448			16,625			18,912			11,760			57,745
Non-cash stock compensation	1,356			1,029			1,484			1,547			5,416			4,964			4,758			2,965			432			13,119
Adjusted EBITDA	$	21,894		$	41,554		$	48,901		$	36,076		$	148,425		$	23,167		$	43,077		$	16,624		$	13,641		$	96,509

(1) We incurred a non-recurring business interruption charge at one of our production facilities in November 2012; we reflected the gain contingency in our operating performance of 2012 having received the corresponding insurance proceeds in February 2013, thus excluding it from first quarter 2013 adjusted EBITDA.

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(2) On January 2, 2013, the American Taxpayer Relief Act of 2012 was signed into law, which reinstated a set of tax extender items including the reinstatement of the federal biodiesel blenders tax credit for 2013 and retroactively reinstated the credit for 2012. The retroactive credit for 2012 resulted in a net benefit to us that was recognized in first quester 2013, but because this credit relates to the operating performance and results of 2012, it is excluded from 2013 adjusted EBITDA and allocated to the 2012 periods based upon gallons sold. Excluding the $57.7 million federal biodiesel blenders tax credit from the 2012 year results in adjusted EBITDA of $38.8 million for 2012.

Adjusted EBITDA is a supplemental performance measure that is not required by, or presented in accordance with, generally accepted accounting principles, or GAAP. Adjusted EBITDA should not be considered as an alternative to net income or any other performance measure derived in accordance with GAAP, or as alternatives to cash flows from operating activities or a measure of our liquidity or profitability. Adjusted EBITDA has limitations as an analytical tool, and should not be considered in isolation, or as a substitute for any of our results as reported under GAAP. Some of these limitations are:

• Adjusted EBITDA does not reflect our cash expenditures for capital assets or the impact of certain cash clauses that we consider not to be an indication of our ongoing operations;

• Adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital requirements;

• Adjusted EBITDA does not reflect the interest expense, or the cash requirements necessary to service interest or principal payments, on our indebtedness;

• although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and Adjusted EBITDA does not reflect cash requirements for such replacements;

• stock-based compensation expense is an important element of our long term incentive compensation program, although we have excluded it as an expense when evaluating our operating performance; and

• other companies, including other companies in our industry, may calculate these measures differently than we do, limiting their usefulness as a comparative measure.

Off-Balance Sheet Arrangements

We have no off-balance sheet arrangements.

Recent Accounting Pronouncements

For a discussion of new accounting pronouncements affecting us, refer to “Note 2 – Summary of Significant Accounting Policies” to our consolidated financial statements.

ITEM 7A. Quantitative and Qualitative Disclosures about Market Risk

The primary objectives of our investment activity are to preserve principal, provide liquidity and maximize income without significantly increasing risk. Some of the securities we invest in are subject to market risk. This means that a change in prevailing interest rates may cause the principal amount of the investment to fluctuate. To minimize this risk, we maintain a portfolio of cash equivalents in short-term investments in money market funds.

Commodity Price Risk

Over the period from January 2010 through December 2013, average diesel prices based on Platts reported pricing for Group 3 (Midwest) have ranged from a high of approximately $3.64 per gallon reported in October 2012 to a low of approximately $1.82 per gallon in February 2010, with prices averaging $2.59 per gallon during this period. Over the period from January 2010 through December 2013, soybean oil prices (based on closing sales prices on the CBOT nearby futures, for crude soybean oil) have ranged from a high of $0.5977 per pound in April 2011 to a low of $0.3584 per pound in July 2010, with closing sales prices averaging $0.4883 per pound during this period. Over the period from January 2010 through December 2013, animal fat prices (based on prices from The Jacobsen Missouri River, for choice white grease) have ranged from a high of $0.5250 per pound in June 2011 to a low of $0.2325 per pound in February 2010, with sales prices averaging $0.3850 per pound during this period. Over the period from July 2010 through December 2013, RIN prices (based on prices from OPIS) have ranged from a high of $1.99 in September 2011 to a low of $0.21 in November 2013, with sales prices averaging $1.07 during this period.

Higher feedstock prices or lower biodiesel prices result in lower profit margins and, therefore, represent unfavorable market conditions. Traditionally, we have not been able to pass along increased feedstock prices to our biodiesel customers. The availability and price of feedstocks are subject to wide fluctuations due to unpredictable factors such as weather conditions during the growing season, rendering volumes, carry-over from the previous crop year and current crop year yield, governmental policies with respect to agriculture and supply and demand.

54

We have prepared a sensitivity analysis to estimate our exposure to market risk with respect to our sales contracts, lower cost feedstock requirements, soybean oil requirements and the related exchange-traded contracts for 2013. Market risk is estimated as the potential loss in fair value, resulting from a hypothetical 10% adverse change in the fair value of our lower cost feedstock and soybean oil requirements and biodiesel sales. The results of this analysis, which may differ from actual results, are as follows:

	2013 Volume (in millions)	Units	Hypothetical Adverse Change in Price		Annual Gross Profit (in millions)		Percentage Change in Gross Profit
Biodiesel	258.6	gallons	10	%	$	120.8	50.1	%
Lower Cost Feedstocks	1,564.1	pounds	10	%	$	60.8	25.2	%
Soybean Oil	327.4	pounds	10	%	$	15.7	6.5	%

We attempt to protect operating margins by entering into risk management contracts that mitigate price volatility of our feedstocks, such as inedible animal fat and inedible corn oil and energy prices. We create offsetting positions by using a combination of forward physical purchases and sales contracts on feedstock and biodiesel, including risk management futures contracts, swaps and options primarily on heating oil and soybean oil; however, the extent to which we engage in risk management activities varies substantially from time to time, and from feedstock to feedstock, depending on market conditions and other factors. A 10% adverse change in the prices of heating oil would have a negative effect on the fair value of these instruments of $8.1 million. A 10% adverse change in the price of soybean oil would have a negative effect on the fair value of these instruments of $0.5 million.

Interest Rate Risk

We are subject to interest rate risk in connection with our $1.0 million loan from the proceeds of Variable Rate Demand Industrial Development Revenue Bonds, or IFA Bonds, issued by the Iowa Finance Authority to finance our Ralston facility. The IFA Bonds bear interest at a variable rate determined by the remarketing agent from time to time as the rate necessary to produce a bid for the purchase of all of the Bonds at a price equal to the principal amount thereof plus any accrued interest at the time of determination, but not in excess of 10% per annum. The interest rate on the bonds was 0.09% for the last week of December 2013. A hypothetical increase in interest rate of 10% would not have a material effect on our annual interest expense.

We are subject to interest rate risk relating to REG Danville’s $5.6 million term debt financing which was renewed on November 3, 2011 according to the Amended and Restated Loan Agreement with Fifth Third Bank. The renewed term loan has a three year term with an automatic one year extension upon certain cumulative principal payment thresholds being met. The term loan bears interest at a fluctuating rate based on LIBOR. Interest will accrue on the outstanding balance of the term loan at LIBOR plus 500 basis points. Interest accrued on the outstanding balance of the loan at December 31, 2013 at 5.17%.

REG Danville entered into an interest rate swap agreement in connection with the aforementioned term loan in December 23, 2011 to be effective January 1, 2012. The swap agreement effectively fixes the variable component of the interest rate at 0.92% on a notional amount of approximately $3.3 million of REG Danville’s term loan through July 2015. The fair value of the interest rate swap agreement was $0.1 million and $0.1 million at December 31, 2013 and 2012, respectively, and is recorded in the other noncurrent liabilities. The interest rate swap agreement is not designated as a cash flow or fair value hedge. Gains and losses based on the fair value change in the interest rate swap agreement are recognized in the statement of operations as a change in the fair value of interest rate swap agreement. A hypothetical increase in interest rate of 10% would not have a material effect on our annual interest.

REG Newton is subject to interest rate risk relating to its $18.1 million term debt financing from AgStar. Interest will accrue on the outstanding balance of the term loan at 30-day LIBOR plus 400 basis points (effective rate at December 31, 2013 of 4.17%). A hypothetical increase in interest rate of 10% would not have a material effect on our annual interest expense.

We are subject to interest rate risk under our Wells Fargo Revolver entered into on December 23, 2011 under which we had $11.0 million borrowed and outstanding at December 31, 2013. Amounts borrowed under the Wells Fargo Revolver bear interest, in the case of LIBOR rate loans, at a per annum rate equal to the LIBOR rate plus the LIBOR Rate Margin (as defined in the Wells Fargo Revolver), which may range from 2.50 to 3.25 percent, based on the Quantity Average Excess Availability Amount (as defined in the Wells Fargo Revolver). All other amounts borrowed that are not LIBOR rate loans bear interest at a rate equal to the greatest of (i) (A) 1.75% per annum, (B) the Federal Funds Rate plus 0.5%, (C) the LIBOR Rate (which rate shall be calculated based upon an interest period of three months and will be determined on a daily basis), plus 1.5% points, and (D) the rate of interest announced, from time to time, within Wells Fargo Bank, National Association at its principal office in San Francisco as its “prime rate,” plus (ii) the Base Rate Margin (as defined in the Wells Fargo Revolver), which may range from 1.00 to 1.75 percent, based on the Quantity Average Excess Availability Amount. The Base Rate Margin is subject to

55

reduction or increase depending on the amount available for borrowing under the Wells Fargo Revolver. The loan was a base rate loan as of December 31, 2013 (effective rate at December 31, 2013 of 3.75%). A hypothetical increase in interest rate of 10% would not have a material effect on our annual interest expense.

Inflation

To date, inflation has not significantly affected our operating results, though costs for petroleum-based diesel fuel, feedstocks, construction, labor, taxes, repairs, maintenance and insurance are all subject to inflationary pressures. Inflationary pressure in the future could affect our ability to sell the biodiesel we produce, maintain our production facilities adequately, build new biodiesel production facilities and expand our existing facilities as well as the demand for our facility construction management and operations management services.

56

ITEM 8. Financial Statements and Supplementary Data

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

Renewable Energy Group, Inc.

416 S. Bell Ave

Ames, Iowa

We have audited the accompanying consolidated balance sheets of Renewable Energy Group, Inc. and subsidiaries (the “Company”) as of December 31, 2013 and 2012, and the related consolidated statements of operations, redeemable preferred stock and equity, and cash flows for each of the three years in the period ended December 31, 2013. Our audits also included the financial statement schedule listed in the Index at Item 15. We also have audited the Company's internal control over financial reporting as of December 31, 2013, based on criteria established in Internal Control - Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company's management is responsible for these financial statements and financial statement schedule, for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on these financial statements and financial statement schedule and an opinion on the Company's internal control over financial reporting based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company's internal control over financial reporting is a process designed by, or under the supervision of, the company's principal executive and principal financial officers, or persons performing similar functions, and effected by the company's board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Renewable Energy Group, Inc. and subsidiaries as of December 31, 2013 and 2012, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2013, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statement schedule, when considered in relation to the basic consolidated financial statements taken as a whole, present fairly, in all material respects, the information set forth therein. Also, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2013, based on the criteria established in Internal Control - Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

/s/ Deloitte & Touche LLP

Des Moines, Iowa

February 28, 2014

57

RENEWABLE ENERGY GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

AS OF DECEMBER 31, 2013 AND 2012

(IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

	2013			2012
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	153,227		$	66,785
Accounts receivable, net (includes amounts owed by related parties of $426 and $771, respectively)	82,911			18,768
Inventories	85,814			45,206
Deferred income taxes	—			2,512
Prepaid expenses and other assets	25,568			15,812
Total current assets	347,520			149,083
Property, plant and equipment, net	286,044			242,885
Property, plant and equipment, net—variable interest entities	5,180			5,405
Goodwill	84,864			84,864
Intangible assets, net	4,867			4,609
Deferred income taxes	—			969
Investments	7,351			2,618
Other assets (includes amounts owed by related party of $35 and $692, respectively)	5,029			5,351
TOTAL ASSETS	$	740,855		$	495,784
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Revolving line of credit	$	10,986		$	—
Current maturities of notes payable	6,729			4,955
Current maturities of notes payable—variable interest entities	300			283
Accounts payable (includes amounts owed to related parties of $552 and $2,950, respectively)	48,727			28,131
Accrued expenses and other liabilities	12,305			6,475
Deferred income taxes	3,687			—
Deferred revenue	15,503			—
Total current liabilities	98,237			39,844
Unfavorable lease obligation	7,905			9,035
Deferred income taxes	2,691			—
Notes payable	23,422			27,776
Notes payable—variable interest entities	3,729			4,030
Other liabilities	6,838			7,292
Total liabilities	142,822			87,977
COMMITMENTS AND CONTINGENCIES (NOTE 21)
Series B Preferred Stock ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, redemption amount $3,583 and $74,878, respectively)	3,963			83,043
EQUITY:
Company stockholders’ equity:
Common stock ($.0001 par value; 300,000,000 shares authorized; 36,506,221 and 30,559,935 shares outstanding, respectively)	4			3
Common stock—additional paid-in-capital	359,671			273,989
Warrants—additional paid-in-capital	147			147
Retained earnings	238,134			53,823
Treasury stock (530,898 and 462,985 shares, respectively)	(3,886		)	(3,198		)
Total equity	594,070			324,764
TOTAL LIABILITIES AND EQUITY	$	740,855		$	495,784

See notes to consolidated financial statements.

58

RENEWABLE ENERGY GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

	2013			2012			2011
REVENUES:
Biodiesel sales	$	1,207,618		$	1,006,465		$	752,826
Biodiesel sales—related parties	—			6			5,161
Biodiesel government incentives	290,393			8,326			65,822
	1,498,011			1,014,797			823,809
Services	127			237			222
	1,498,138			1,015,034			824,031
COSTS OF GOODS SOLD:
Biodiesel	1,209,191			902,084			433,060
Biodiesel—related parties	49,358			54,364			263,562
Services	156			263			198
	1,258,705			956,711			696,820
GROSS PROFIT	239,433			58,323			127,211
SELLING, GENERAL, AND ADMINISTRATIVE EXPENSES (includes related party amounts of $37, $158, and $1,505, respectively)	46,123			42,422			34,479
INCOME FROM OPERATIONS	193,310			15,901			92,732
OTHER INCOME (EXPENSE), NET:
Change in fair value of preferred stock conversion feature embedded derivatives	—			11,975			7,939
Change in fair value of Seneca Holdco liability	—			349			(2,097		)
Other income	388			167			930
Interest expense (includes related party amounts of $30, $32, and $761, respectively)	(2,397		)	(4,679		)	(8,095		)
	(2,009		)	7,812			(1,323		)
INCOME BEFORE INCOME TAXES AND INCOME FROM EQUITY INVESTMENTS	191,301			23,713			91,409
INCOME TAX EXPENSE	(4,935		)	(1,454		)	(2,982		)
INCOME FROM EQUITY INVESTMENTS	—			—			442
NET INCOME	186,366			22,259			88,869
EFFECTS OF RECAPITALIZATION	—			39,107			—
LESS—ACCRETION OF SERIES A PREFERRED STOCK TO REDEMPTION VALUE	—			(1,808		)	(25,343		)
LESS—CHANGES IN UNDISTRIBUTED DIVIDENDS ALLOCATED TO PREFERRED STOCKHOLDERS	—			(823		)	(12,723		)
LESS—DISTRIBUTED DIVIDENDS TO PREFERRED STOCKHOLDERS	(2,055		)	(3,156		)	—
LESS—EFFECT OF PARTICIPATING PREFERRED STOCK	(16,272		)	(8,952		)	(4,186		)
LESS—EFFECT OF PARTICIPATING SHARE-BASED AWARDS	(2,785		)	(3,145		)	(3,864		)
NET INCOME ATTRIBUTABLE TO THE COMPANY’S COMMON STOCKHOLDERS	$	165,254		$	43,482		$	42,753
Net income per share attributable to common stockholders:
Basic	$	5.00		$	1.53		$	3.14
Diluted	$	5.00		$	0.27		$	3.14
Weighted-average shares used to compute net income per share attributable to common stockholders:
Basic	33,045,164			28,381,676			13,607,840
Diluted	33,052,879			34,340,466			13,607,840

See notes to consolidated financial statements

59

RENEWABLE ENERGY GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF REDEEMABLE PREFERRED STOCK AND EQUITY

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011 (IN THOUSANDS EXCEPT SHARE AND PER SHARE AMOUNTS)

	Redeemable Preferred Stock Shares		Redeemable Preferred Stock			Company Stockholders’ Equity
						Common Stock Shares	Common Stock		Class A Common Stock Shares		Class A Common Stock			Common Stock- Additional Paid-in Capital			Warrants- Additional Paid-in Capital			Retained Earnings			Treasury Stock			Total
BALANCE, January 1, 2011	13,455,522		$	122,436		—	$	—	13,251,264		$	1		$	82,636		$	4,820		$	(52,341	)	$	—		$	35,116
Issuance of common stock in acquisitions	—		—			—	—		673,544		—			16,350			—			—			—			16,350
Stock compensation expense	—		—			—	—		—		—			5,934			—			—			—			5,934
Warrants exercised	—		—			—	—		8,383		—			128			(80		)	—			—			48
Warrants expired	—		—			—	—		—		—			1,042			(1,042		)	—			—			—
Conversion of restricted stock issuance	—		—			—	—		50,000		—			—			—			—			—			—
Purchase of treasury stock related to restricted stock unit conversion	—		—			—	—		(21,036	)	—			—			—			—			(398		)	(398		)
Accretion of preferred stock to redemption value	—		25,343			—	—		—		—			(25,343		)	—			—			—			(25,343		)
Net income	—		—			—	—		—		—			—			—			88,869			—			88,869
BALANCE, December 31, 2011	13,455,522		147,779			—	—		13,962,155		1			80,747			3,698			36,528			(398		)	120,576
Derecognition of Series A Preferred Stock	(13,455,522	)	(149,587		)	—	—		—		—			—			—			—			—			—
Issuance of Series B Preferred Stock and common stock	2,999,493		83,165			—	—		7,660,612		1			111,795			(3,551		)	—			—			108,245
Issuance of common stock in initial public offering, net of issuance cost of $8,892	—		—			7,200,000	1		(342,860	)	—			59,918			—			—			—			59,919
Issuance of common stock	—		—			—	—		318,501		—			3,958			—			—			—			3,958
Issuance of common stock in acquisition	—		—			900,000	—		—		—			4,329			—			—			—			4,329
Conversion of Class A common stock to common stock	—		—			21,598,408	2		(21,598,408	)	(2		)	—			—			—			—			—
Conversion of Series B preferred stock to common stock	(4,387	)	(122		)	8,957	—		—		—			123			—			(1		)	—			122
Conversion of restricted stock units to common stock (net of 441,949 shares of treasury stock purchased)	—		—			852,570	—		—		—			—			—			—			(2,800		)	(2,800		)
Stock compensation expense	—		—			—	—		—		—			13,119			—			—			—			13,119
Accretion of Series A Preferred Stock to redemption value	—		1,808			—	—		—		—			—			—			(1,808		)	—			(1,808		)
Series B preferred stock dividends paid	—		—			—	—		—		—			—			—			(3,155		)	—			(3,155		)
Net income	—		—			—	—		—		—			—			—			22,259			—			22,259
BALANCE, December 31, 2012	2,995,106		$	83,043		30,559,935	3		—		—			273,989			147			53,823			(3,198		)	324,764
Issuance of common stock	—		—			58,501	—		—		—			423			—			—			—			423
Conversion of Series B Preferred Stock to common stock	(2,851,793	)	(79,080		)	5,763,508	1		—		—			79,843			—			—			—			79,844
Conversion of restricted stock units to common stock (net of 67,913 shares of treasury stock purchased)	—		—			124,277	—		—		—			—			—			—			(688		)	(688		)
Stock compensation expense	—		—			—	—		—		—			5,416			—			—			—			5,416
Series B Preferred Stock dividends paid	—		—			—	—		—		—			—			—			(2,055		)	—			(2,055		)
Net income	—		—			—	—		—		—			—			—			186,366			—			186,366
BALANCE, December 31, 2013	143,313		$	3,963		36,506,221	$	4	—		$	—		$	359,671		$	147		$	238,134		$	(3,886	)	$	594,070

See notes to consolidated financial statements.

60

RENEWABLE ENERGY GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS)

	2013			2012			2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	186,366		$	22,259		$	88,869
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation expense	9,705			8,024			7,184
Amortization expense of assets and liabilities, net	(463		)	(103		)	2,291
Loss on disposal of property, plant and equipment	815			—			—
Provision for doubtful accounts	309			563			1,389
Stock compensation expense	5,416			13,119			5,934
(Income) from equity method investees	—			—			(442		)
Deferred tax expense (benefit)	9,859			2,986			(4,967		)
Change in fair value of preferred stock conversion feature embedded derivatives	—			(11,975		)	(7,939		)
Change in fair value of Seneca Holdco liability	—			(249		)	1,497
Premium paid for Seneca Landlord investment	—			(7,063		)	—
Expense settled with stock issuance	—			1,898			—
Forgiveness of note payable	—			—			(86		)
Changes in asset and liabilities, net of effects from mergers and acquisitions:
Accounts receivable	(64,460		)	32,014			(35,421		)
Inventories	(40,608		)	(3,096		)	(13,047		)
Prepaid expenses and other assets	(9,984		)	(394		)	(11,951		)
Accounts payable	22,386			(4,002		)	14,153
Accrued expenses and other liabilities	4,801			(2,614		)	6,321
Deferred revenue	15,503			(6,748		)	(2,591		)
Net cash flows provided from operating activities	139,645			44,619			51,194
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash paid for purchase of property, plant and equipment	(39,053		)	(12,654		)	(4,806		)
Cash proceeds from involuntary disposal of fixed assets	330			—			—
Change in restricted cash	—			(64		)	2,664
Cash paid for investments	(4,733		)	(37		)	—
Consolidation of Bell, LLC	—			—			22
Cash paid for acquisitions	(10,933		)	(1,791		)	—
Net cash flows used in investing activities	(54,389		)	(14,546		)	(2,120		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on line of credit	1,538,615			1,331,557			40,564
Repayments on line of credit	(1,527,629		)	(1,335,592		)	(46,079		)
Cash received for issuance of note payable	3,000			—			10,000
Cash paid on notes payable	(10,999		)	(44,509		)	(20,695		)
Cash paid for debt issuance costs	(203		)	(138		)	(1,443		)
Repayment of investment in Seneca Landlord	—			(4,000		)	—
Cash received from initial public offering	—			63,747			—
Cash paid for issuance of common stock and preferred stock	(25		)	(1,699		)	(2,153		)
Cash received upon exercise of warrant	—			—			48
Cash paid for treasury stock	(282		)	(3,074		)	—
Cash paid for preferred stock dividends	(1,291		)	(3,155		)	—
Net cash flows provided from (used in) financing activities	1,186			3,137			(19,758		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	86,442			33,210			29,316
CASH AND CASH EQUIVALENTS, Beginning of period	66,785			33,575			4,259
CASH AND CASH EQUIVALENTS, End of period	$	153,227		$	66,785		$	33,575

(continued)

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RENEWABLE ENERGY GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS)

	2013			2012		2011
SUPPLEMENTAL DISCLOSURES OF CASH FLOWS INFORMATION:
Cash paid (received) for income taxes	$	(7,475	)	$	3,537	$	(7,172	)
Cash paid for interest	$	2,336		$	3,984	$	5,418
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Effects of recapitalization				$	39,107
Accretion of preferred stock to redemption value				$	1,808	$	25,343
Common stock repurchased included in accrued expenses and other liabilities	$	529		$	124	$	398
Amounts included in period-end accounts payable for:
Purchases of property, plant and equipment	$	2,037		$	3,884	$	898
Debt issuance costs	$	16		$	48	$	85
Equity issuance costs	$	89				$	999
Incentive common stock liability for supply agreement	$	583		$	423	$	1,469
Removal of equity method investee as a result of consolidation						$	1,613
Issuance of common stock per exercise of Seneca Landlord put/call option				$	591
Issuance of common stock for dividends	$	764		$	1
In-kind contribution through acquisition				$	1,336
Issuance of note payable for acquisition	$	5,135
See "Note 5 - Acquisitions and Equity Transactions" for noncash items related to company acquisitions
See "Note 6 - Variable Interest Entities" for noncash items related to the consolidation of Bell, LLC

See notes to consolidated financial statements.

(concluded)

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RENEWABLE ENERGY GROUP, INC. AND SUBSIDIARIES

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

For The Three Years Ended December 31, 2013, 2012 and 2011

(In Thousands, Except Share and Per Share Amounts)

NOTE 1—ORGANIZATION, PRESENTATION, AND NATURE OF THE BUSINESS

Renewable Energy Group, Inc. (the "Company") is a leading North American biodiesel producer with a nationwide distribution and logistics system. The Company participates in each aspect of biodiesel production, from acquiring feedstock, managing construction and operating biodiesel production facilities, to marketing, selling and distributing biodiesel and its co-products.

The Company operates a network of eight operating biodiesel production facilities with aggregate nameplate production capacity of 257 million gallons per year, or mmgy. A number of these plants are “multi-feedstock capable” which allows them to use a broad range of lower cost feedstocks, such as inedible corn oil, used cooking oil and inedible animal fats in addition to vegetable oils, such as soybean oil and canola oil.

The Company also has three partially constructed production facilities and one non-operational production facility. In 2007, the Company commenced construction of two60 mmgy production facilities, one near New Orleans, Louisiana and the other in Emporia, Kansas. In 2008, the Company halted construction of these facilities as a result of conditions in the biodiesel industry and the credit markets. Construction of the New Orleans facility is approximately 45% complete and construction of the Emporia facility is approximately 20% complete. In September 2010, the Company acquired a 15 mmgy production facility in Clovis, New Mexico which is approximately 50% complete. Currently, the Clovis facility is being operated as a terminal. In November 2012, the Company completed our acquisition of Bulldog Biodiesel, LLC, a 15 mmgy production facility near Atlanta, Georgia, that was non-operational at the time the Company purchased it and will remain idled until certain repairs or upgrades are made. The Company will need to raise additional capital to complete construction of these plants and fund working capital requirements. It is uncertain when or if financing will be available.

The biodiesel industry and the Company’s business have benefited from the continuation of certain federal and state incentives. The federal blenders tax credit expired on December 31, 2013 and it is uncertain whether it will be reinstated. This revocation along with other amendments of any one or more of those laws, could adversely affect the financial results of the Company.

NOTE 2—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Consolidation

The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries, and entities which it controls. All significant intercompany balances and transactions have been eliminated for consolidated reporting purposes.

Cash and Cash Equivalents

Cash and cash equivalents consists of money market funds and demand deposits with financial institutions. The Company considers all highly liquid debt instruments purchased with an original maturity of three months or less to be cash equivalents.

Accounts Receivable

Accounts receivable are carried at invoiced amount less allowance for doubtful accounts. Management estimates the allowance for doubtful accounts based on existing economic conditions, the financial conditions of customers, and the amount and age of past due accounts. Receivables are considered past due if full payment is not received by the contractual due date. Past due accounts are generally written off against the allowance for doubtful accounts only after reasonable collection attempts have been exhausted. Activity regarding the allowance for doubtful accounts was as follows:

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Balance, January 1, 2011	$	316
Amount charged to selling, general and administrative expenses	1,389
Charge-offs, net of recovery	(270		)
Balance, December 31, 2011	1,435
Amount charged to selling, general and administrative expenses	563
Charge-offs, net of recovery	(26		)
Balance, December 31, 2012	1,972
Amount charged to selling, general and administrative expenses	309
Charge-offs, net of recovery	(157		)
Balance, December 31, 2013	$	2,124

Inventories

Inventories are valued at the lower of cost or market. There were no lower of cost or market adjustments made to the inventory values reported as of December 31, 2013 and 2012. Cost is determined based on the first-in, first-out method.

Renewable Identification Numbers (RINs)

When the Company produces and sells a gallon of biodiesel, 1.5 RINs per gallon are generated. RINs are used to track compliance with Renewable Fuel Standards (RFS2). RFS2 allows the Company to attach between zero and 2.5 RINs to any gallon of biodiesel. When the Company sells a gallon of biodiesel, 1.5 RINs are generally attached. As a result, a portion of the selling price for a gallon of biodiesel is generally attributable to RFS2 compliance. However, RINs that the Company generates are a form of government incentive and not a result of the physical attributes of the biodiesel production. Therefore, no cost is allocated to the RIN when it is generated, regardless of whether the RIN is transferred with the biodiesel produced or held by the Company pending attachment to other biodiesel production sales. In addition, the Company also obtains RINs from third parties who have separated the RINs from gallons of biomass-based diesel. From time to time, the Company holds varying amounts of these separated RINs for resale. RINs obtained from third parties are initially recorded at their cost and are subsequently revalued at the lower of cost or market as of the last day of each accounting period and the resulting adjustments are reflected in costs of goods sold for the period. The value of RINs obtained from third parties is reflected in “Prepaid expenses and other assets” on the consolidated balance sheet. The cost of goods sold related to the sale of these RINs is determined using the average cost method, while market prices are determined by RIN values, as reported by the Oil Price Information Service (OPIS).

Derivative Instruments

Derivatives are recorded on the balance sheet at fair value with changes in fair value recognized in current period earnings.

Valuation of Series A Preferred Stock Conversion Feature Embedded Derivatives

The conversion feature of the Series A Preferred Stock was accounted for as an embedded derivative prior to the conversion of Series A Preferred Stock in January 2012. This embedded derivative was a liability representing the estimated fair value of Series A Preferred Stock holders right to receive the fair market value of the Common Stock issuable upon conversion of the Series A Preferred Stock on the redemption date. The value of this derivative was adjusted each quarter based on changes in the estimated fair value, and a corresponding income or expense was recorded in change in fair value of the Preferred Stock conversion feature embedded derivatives in the Company’s statements of operations. The Company used the Black-Scholes options pricing model to estimate the fair value and assumptions included the expected volatility of the value of the Company’s equity, the expected conversion date, an appropriate risk-free interest rate and the estimated fair value of the Company’s equity.

Valuation of Seneca Holdco Liability

The Company recorded a liability (Seneca Holdco Liability) at fair value, with changes in value recognized currently in earnings, for its obligation under a Put/Call Agreement with Seneca Holdco, LLC (Seneca Holdco) to purchase Seneca Landlord, LLC (Seneca Landlord) whose assets consisted primarily of a 60 mmgy biodiesel production facility in Seneca, Illinois (Seneca Facility) until the Company exercised its option and acquired the Seneca Facility in January 2012. Seneca Landlord was indirectly owned by three significant stockholders of the Company or their affiliates: Bunge North America, Inc. USRG Holdco IX, LLC, and West Central Cooperative.

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The fair value of the Seneca Holdco Liability was determined by probability weighting the present value of gains or losses realized under each option in the Put/Call Agreement. The Put/Call Agreement had a term of seven years and was exercisable by either party at a price based on a pre-defined formula. The valuation required the development and use of highly subjective assumptions including (i) the value of the Landlord’s equity, (ii) expectations regarding future changes in the value of the Landlord’s equity, (iii) expectations about the probability of either option being exercised, including the Company’s ability to list its securities on an exchange or complete a public offering and (iv) an appropriate risk-free rate. Company management considered current public equity markets, relevant regulatory issues, industry conditions and the Company’s position within the industry when estimating the probability that the Company would raise additional capital.

Preferred Stock Accretion

The Company accreted the carrying value of the Series A Preferred Stock to its redemption value until January 2012 when it was converted in connection with the Initial Public Offering (IPO). Accretion of $1,808 and $25,343 for the years ended December 31, 2012 and 2011, respectively, was recognized as a reduction to income available to common stockholders in accordance with paragraph 15 of ASC Topic 480-10-S99.

The Company recorded the Series B Preferred Stock at fair value, which was a premium over its redemption value; therefore no accretion is recorded for the Series B Preferred Stock.

Non-monetary Exchanges

The Company records assets acquired and liabilities assumed through the exchange of non-monetary assets based on the fair value of the assets and liabilities acquired or the fair value of the consideration exchanged, whichever is more readily determinable.

Property, Plant and Equipment

Property, plant and equipment is recorded at cost less accumulated depreciation. Maintenance and repairs are expensed as incurred. Depreciation expense is computed on a straight-line method based upon estimated useful lives of the assets. Estimated useful lives are as follows:

Automobiles and trucks	5 years
Computers and office equipment	5 years
Office furniture and fixtures	7 years
Machinery and equipment	5-30 years
Leasehold improvements	the lesser of the lease term or 30 years
Buildings and improvements	30-40 years

As of December 31, 2013, 2012 and 2011, the Company capitalized interest incurred on debt during the construction of assets of $335, $33 and $0, respectively.

Goodwill

Goodwill is tested for impairment annually on July 31 or when impairment indicators exist. Goodwill is allocated and tested for impairment by reporting units. The Company’s reporting units consist of its two operating segments, the biodiesel operating segment and services operating segment. The analysis is based on a comparison of the carrying value of the reporting unit to its fair value, determined utilizing both a discounted cash flow methodology and a market comparable methodology. The determination of whether or not the asset has become impaired involves a significant level of judgment in the assumptions underlying the approach used to determine the value of the Company’s reporting units. Changes in estimates of future cash flows caused by items such as unforeseen events or sustained unfavorable changes in market conditions could negatively affect the fair value of the reporting unit’s goodwill asset and result in an impairment charge. The annual impairment test determined that the fair value of the biodiesel operating segment exceeded its carrying value by approximately 43% and the services operating segment exceeded its carrying value by approximately 20%. There was no impairment of goodwill recorded in any of the periods presented.

The following table summarizes goodwill for the Company’s business segments:

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	Biodiesel		Services		Total
Beginning balance - January 1, 2012	$	68,784	$	16,080	$	84,864
Acquisitions	—		—		—
Ending balance - December 31, 2012	68,784		16,080		84,864
Acquisitions	—		—		—
Ending balance - December 31, 2013	$	68,784	$	16,080	$	84,864

Impairment of Assets

The Company tests its long-lived assets for recoverability when events or circumstances indicate that its carrying amount may not be recoverable. Significant assumptions used in the undiscounted cash flow analysis include the projected demand for biodiesel based on annual renewable fuel volume obligations under the Renewable Fuel Standards (RFS2), the Company's capacity to meet that demand, the market price of biodiesel and the cost of feedstock used in the manufacturing process. For facilities under construction, estimates also include the capital expenditures necessary to complete construction of the plant. The Company’s facilities under construction are expected to have substantially similar operating capabilities and results as the current operating facilities. Such operating capabilities would include similar feedstock capabilities, similar access to low cost feedstocks, proximity to shipping from our vendors and to our customers and our ability to transfer best practices among the Company's various operating facilities to maximize production volumes and reduce operating costs. There were no asset impairment charges for the years ended December 31, 2013, 2012 and 2011.

Investments

The Company has made investments in several biofuels businesses. These investments are recorded at cost and assessed for impairment at each reporting period. There were no impairment charges for the years ended December 31, 2013, 2012 and 2011.

Unfavorable Lease Obligation

The Company assumed a ground lease of a terminal facility in Houston, Texas as part of an acquisition which required the Company to pay above market rentals through the remainder of the lease term expiring in 2021. The unfavorable lease obligation is amortized over the contractual period the Company is required to make rental payments under the lease. The amount expected to be amortized each year for the remainder of the contract is $1,129.

Revenue Recognition

The Company recognizes revenues from the following sources:

• the sale of biodiesel and its co-products, as well as Renewable Identification Numbers (RINs) and raw material feedstocks, purchased or produced by the Company at owned manufacturing facilities and manufacturing facilities with which the Company has tolling arrangements;

• the resale of biodiesel, RINs and raw material feedstocks acquired from third parties;

• fees received under toll manufacturing agreements with third parties;

• incentives received from federal and state programs for renewable fuels; and

• fees received for the marketing and sales of biodiesel produced by third parties and from managing operations of third party facilities.

Biodiesel, including RINs, and raw material feedstock revenues are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Fees received under toll manufacturing agreements with third parties are generally established as an agreed upon amount per gallon of biodiesel produced. The fees are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Revenues associated with the governmental incentive programs are recognized when the amount to be received is determinable, collectability is reasonably assured and the sale of product giving rise to the incentive has been recognized. The Company received funds from the United States Department of Agriculture (USDA) in the amount of $2,813, $1,161 and $9,913 for the years ended December 31, 2013, 2012 and 2011, respectively. The Company records amounts when it has received notification of a payment from the USDA or is in receipt of the funds and records the awards under the Program in "Biodiesel government incentives" as they are closely associated with the Company's biodiesel production activities.

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While in general the Company has not historically offered sales incentives to customers, the uncertainty around the reinstatement of the federal blenders tax credit led to the introduction of such an incentive during 2012. Specifically, during 2012 the Company negotiated contracts with certain customers to allow such customers to share in the value of federal blenders tax payments if the law were to be reinstated. The federal blenders tax credit was reinstated on January 2, 2013 and the Company recognized $69,534 of cash payments owed to customers as a reduction of Biodiesel sales revenue. The Company did not have similar contracts before 2012.

Freight

Amounts billed to customers for freight are included in biodiesel sales. Costs incurred for freight are included in costs of goods sold.

Advertising Costs

Advertising costs are charged to expense as they are incurred. Advertising and promotional expenses were $648, $485 and $251 for the years ended December 31, 2013, 2012 and 2011, respectively.

Research and Development

The Company expenses research and development costs as incurred. Research and development costs totaled $258, $14 and $22 for the years ended December 31, 2013, 2012 and 2011, respectively.

Employee Benefits Plan

The Company sponsors an employee savings plan under Section 401(k) of the Internal Revenue Code. The Company makes matching contributions equal to 50% of the participant’s pre-tax contribution up to a maximum of 6% of the participant’s eligible earnings. Total expense related to the Company’s defined contribution plan was approximately $533, $456 and $323 for the years ended December 31, 2013, 2012 and 2011, respectively.

Stock-Based Compensation

Stock-based compensation expense is measured at the grant-date fair value of the award and recognized as compensation expense over the vesting period.

Income Taxes

Deferred income taxes are recognized for differences between the financial statement and tax bases of assets and liabilities at enacted statutory tax rates in effect for the years in which differences are expected to reverse. Consideration is given to positive and negative evidence related to the realization of the deferred tax assets and valuation allowances are established to reduce deferred tax assets to the amounts expected to be realized. Significant judgment is required in making this assessment.

Recapitalization

In connection with the Company's IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly-issued Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.5% per annum. All Series A Preferred Stock was converted and no Series A Preferred Stock remains outstanding. The Company recorded the effects from the exchange of Series A Preferred Stock for Series B Preferred Stock and Common Stock as an extinguishment in accordance with ASC Topic 260-10-S99-2.

Accordingly, the Company recognized an addition to the income available to common shareholders in the amount of $39,107. This amount was determined by comparing the fair value of the Series B Preferred Stock and Common Stock issued of $152,327 to the carrying amount of the Series A preferred shares that were redeemed of $191,434. The excess of the carrying amount of Series A Preferred Stock that were redeemed over the fair value of the Series B Preferred Stock and Common Stock that were issued was recorded as an increase to additional paid-in capital and was added to net earnings available to common shareholders of $39,107. The Series B Preferred Stock fair value was determined using Monte Carlo simulation methodology with the assistance of external third-party experts to calculate the fair-value using the Company's common stock at time of conversion. The significant assumptions included the volatility rate and risk-free rate based upon the yield of the U.S. Industrials B curve.

Variable Interest Entities

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The Company uses both quantitative and qualitative analysis when evaluating its variable interest entities (VIE’s) and determining the primary beneficiary (PB) of a VIE. The Company consolidates a VIE if it has both (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance and (b) the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.

Concentrations

Certain customers represented greater than 10% of the total consolidated revenues of the Company for the three years ended December 31, 2013, 2012 and 2011. All customer amounts disclosed in the table are related to biodiesel sales:

	2013		2012		2011
Customer A	$	243,258	$	363,372	$	189,773

The Company maintains cash balances at financial institutions, which may at times exceed the $250 coverage by the U.S. Federal Deposit Insurance Company.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements and reported amounts of revenues and expenses during the reporting periods. These estimates are based on information that is currently available to management and on various assumptions that the Company believes to be reasonable under the circumstances. Actual results could differ from those estimates.

New Accounting Pronouncements

In July 2013, the FASB issued ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (Topic 740). The amendments to ASU 2013-11 provide guidance on the financial statement presentation of unrecognized tax benefit when a net operating loss carryforward, a similar loss, or a tax credit carryforward exists. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The Company will reflect the impact of these amendments beginning with the Company's Quarterly Report on Form 10-Q for the period ending March 31, 2014. The Company does not anticipate a material impact to the Company's financial position, results of operations or cash flows as a result of this change.

NOTE 3—STOCKHOLDERS’ EQUITY OF THE COMPANY

Common Stock

The Company has authorized capital stock consisting of 450,000,000 shares, all with a par value of $.0001 per share, which includes 300,000,000 shares of Common Stock (the class of common stock offered in the IPO), 140,000,000 shares of Common Stock A and 10,000,000 shares of Preferred Stock including 3,000,000 shares of Series B Preferred Stock.

Each holder of Common Stock is entitled to one vote for each share of Common Stock held on all matters submitted to a vote of stockholders. Subject to preferences that may apply to shares of previously outstanding Series A Preferred Stock and currently outstanding Series B Preferred Stock as outlined below, the holders of outstanding shares of Common Stock are entitled to receive dividends. After the payment of all preferential amounts required to the holders of Series B Preferred Stock, all of the remaining assets of the Company available for distribution shall be distributed ratably among the holders of Common Stock.

On January 3, 2012, the Company effected a one-for-2.5 reverse stock split on the shares issued and outstanding. All numbers of common shares and per share data in the accompanying consolidated financial statements and related notes have been retroactively adjusted.

On January 24, 2012, the Company completed an IPO of shares of Common Stock in which it sold 7,200,000 shares at a price to the public of $10 per share, which included 342,860 shares of Common Stock from selling shareholders. The IPO raised approximately $59,919 net of underwriting fees and offering costs. In connection with the Company’s IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly issued Class A Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.50% per annum.

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During the third quarter 2013, the Company's closing sale price of its Common Stock exceeded $15.00 for at least 20 days in a 30 consecutive trading day period with the average daily trading volume exceeding 200,000 shares. Therefore, the Company opted to cause 50% of the then-outstanding shares of Series B Preferred Stock to be converted as provided for in the preferred stock shareholder agreement. The Company converted 518,365 shares of Series B Preferred Stock into 1,047,465 shares of Common Stock.

Common Stock Warrants

Under the Company’s outstanding warrants, the holder may purchase the number of shares of Common Stock underlying each warrant held for a purchase price of $11.16 per share. The warrant holder may “net exercise” the warrants and use the common shares received upon exercise of the warrants outstanding as the consideration for payment of the exercise price.

The warrant holders are generally protected from anti-dilution by adjustments for any stock dividends, stock split, combination, or other recapitalization.

On January 24, 2012, certain common stock warrant holders were converted to Class A Common Stock as part of the stock recapitalization. Warrant holders converted 287,561 common stock warrants to 134,181 shares of Common Stock.

The following table summarizes the number of shares reserved for the exercise of common stock purchase warrants as of December 31:

Issued to	Issuance Date	Expiration Date	Exercise Price Per Share		Warrants Outstanding 2013	Warrants Outstanding 2012
Blackhawk warrant holders	February 26, 2010	February 25, 2015	$	11.16	17,916	17,916

No common stock warrants were issued during 2013 or 2012.

Stock Issuance Costs

In addition to the warrants, other direct costs of obtaining capital by issuing the common and preferred stock were deducted from related proceeds with the net amount recorded as preferred stock or stockholders’ equity. Direct costs incurred for the years ended December 31, 2013, 2012 and 2011 were $114, $700 and $3,152, respectively.

NOTE 4—REDEEMABLE PREFERRED STOCK

The rights, preferences, privileges and restrictions granted to and imposed on the preferred stock are set forth below. The holders of preferred stock are generally protected from anti-dilution by adjustments for any stock dividends, stock split, combination or other recapitalization.

In connection with the Company’s IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly-issued Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.5% per annum. Prior to conversion, Series A Preferred Stock accrued dividends at the rate of $0.88 per share per annum, was entitled to voting rights on an as converted basis, had liquidation preference over common stock, and had certain redemption rights. All Series A Preferred Stock was converted and no Series A Preferred Stock remains outstanding.

Series B Preferred Stock

Dividend Provisions

The holders of the Series B Preferred Stock are entitled to receive, when, as and if declared by the Company Board, cumulative dividends on each outstanding share of Series B Preferred Stock at the annual rate of 4.50% of the stated value. Dividends are payable semi-annually in arrears on June 30 and December 30 of each year. The Company may, at its option, defer a regularly scheduled dividend payment and instead pay accumulated and unpaid dividends on the following dividend payment date. The Company can only defer two such dividend payments and may not defer consecutive dividend payments. The Company will pay any dividend in cash, by delivering shares of Common Stock or through any combination of cash and shares of Common Stock. During May 2012, the Company Board declared its first dividend with respect to the Series B Preferred Stock in the amount of $0.49 per share in cash. Total dividends paid on June 30, 2012 were $1,470. The payment was pro-rated to give effect to the fact that the Series B Preferred Stock was not issued until January 24, 2012. During December 2012, the Company Board declared its second dividend with respect to the Series B Preferred Stock in the amount of $0.5625 per share in cash. The second dividend was paid in December 2012 in the amount of $1,685. The Company declared and paid

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dividends in 2013 with respect to the Series B Preferred Stock in the amount of $0.5625 per share cash. The dividends were paid in June 2013 and December 2013 in the amount of $1,205 and $80, respectively.

Liquidation Rights

In the event of any voluntary or involuntary liquidation, dissolution or winding up of affairs, a holder of Series B Preferred Stock will be entitled to be paid, before any distribution or payment may be made to any holders of junior stock, an amount per share of Series B Preferred Stock, ( the "Liquidation Preference"), equal to the sum of the stated value of a share of Series B Preferred Stock of $25.00, (the "Stated Value"), plus the amount of any accumulated and unpaid dividends, whether or not declared, to, but excluding, the date of payment.

If upon any liquidation or dissolution, the remaining net assets of the Company are insufficient to pay the amount that the Series B preferred stockholders are due as indicated above, the holders of Series B Preferred Stock will share ratably in any distribution of the remaining assets of the Company.

Conversion Rights

At any time following the lock-up expiration date, the holder of any shares of Series B Preferred Stock will have the right to convert such shares, together with accumulated and unpaid dividends (whether or not declared) into shares of Common Stock at a conversion rate in effect at such time. The initial conversion rate for each $25.00 of Liquidation Preference will be equal to $25.00 divided by a price that is 125% of the public offering price in the IPO.

The conversion rate is subject to adjustment from time to time upon the following events: a distribution or dividend of Common Stock, certain subdivisions and combinations of the Common Stock, the issuance to holders of Common Stock of certain rights or warrants to purchase Common Stock, certain dividends or distributions of capital stock, evidences of indebtedness, other assets or cash to holders of Common Stock, or, under certain circumstances, a payment the Company makes in respect of a tender offer or exchange offer for Common Stock.

If, at any time following the lock-up expiration date, the closing sale price of the Common Stock exceeds $15.00 for at least 20 trading days in any 30 consecutive trading day period and the average daily trading volume of the Common Stock for at least 20 trading days in such period exceeds 200,000 shares or $2,500, then the Company may, at its option, cause up to 50% of the then-outstanding shares of Series B Preferred Stock, and corresponding accumulated and unpaid dividends, to be converted into shares of Common Stock at the then-applicable conversion rate. This occurred and was affected in 2013. If, at any time following the lock-up expiration date, the closing sale price of the Common Stock exceeds $16.00 for at least 20 trading days in any 30 consecutive trading day period and the average daily trading volume of the Common Stock for at least 20 trading days in such period exceeds 200,000 shares or $2,500, the Company may, at its option, cause up to all of the then-outstanding shares of Series B Preferred Stock, and corresponding accumulated and unpaid dividends, to be converted into shares of Common Stock at the then-applicable conversion rate.

Voting Rights

Each holder of the Series B Preferred Stock is entitled to vote their shares of Series B Preferred Stock on an as-converted basis on any matters presented to holders of Common Stock. Except as required by law, holders of Series B Preferred Stock will vote on an as-converted basis together with the holders of Common Stock and with the holders of any other class or series of the Company’s capital stock entitled to vote with the Common Stock, as a single class.

The vote or consent of at least 75% of the outstanding shares of the Series B Preferred Stock, voting as a separate class, shall be necessary to amend, alter or repeal the terms of the Series B Preferred Stock so as to adversely affect the powers, preferences or rights of the Series B Preferred Stock.

Redemption Rights

Except as set forth below, the Company may not redeem the Series B Preferred Stock prior to the date, (the "Initial Optional Redemption Date") which is 18 months following the lock-up expiration date. On or after the Initial Optional Redemption Date, the Series B Preferred Stock may be redeemed at the Company’s option, in whole or in part, for cash at a price per share equal to the Stated Value, plus any accumulated and unpaid dividends (the "Redemption Price"). If a change of control transaction occurs any time before the Initial Optional Redemption Date, then the Company may elect to redeem all, but not part, of the outstanding shares of Series B Preferred Stock for cash at the Redemption Price plus a “make-whole” payment for each share of Series B Preferred Stock equal to $2.25 less the amount of any dividends paid on such share since the original issuance date of the Series B Preferred Stock.

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If before March 31, 2015, the Company conducts an equity offering or offerings for cash that results in aggregate net proceeds in excess of $20,000, then, subject to the Company having legally available funds, the Company will offer to purchase or redeem the maximum number of shares of Series B Preferred Stock at a price equal to the Stated Value plus the amount of any accumulated and unpaid dividends to, but excluding, the purchase date that may be purchased or redeemed using 25% of those net proceeds. Before the Initial Optional Redemption Date, the Company will use those net proceeds to offer to purchase, in a tender offer, Series B Preferred Stock, and after the Initial Optional Redemption Date, the Company will use those net proceeds to redeem Series B Preferred Stock.

On June 30, 2015, each holder of Series B Preferred Stock will have the right to require the Company to redeem its shares at the Redemption Price, subject to the Company having legally available funds. If at any time dividends on any shares of Series B Preferred Stock are unpaid as of the specific dividend payment date and the non-payment continues for a period of 30 days, then the holders of not less than 25% of the then-outstanding Series B Preferred Stock may require the Company, subject to our having legally available funds, to redeem all outstanding shares of Series B Preferred Stock at the Redemption Price.

NOTE 5—ACQUISITIONS AND EQUITY TRANSACTIONS

SoyMor Biodiesel, LLC

On July 12, 2011, the Company and REG Albert Lea, LLC (REG Albert Lea), a subsidiary of the Company, completed its asset acquisition of SoyMor. Pursuant to the Asset Purchase Agreement, dated June 8, 2011, the Company issued 673,544 shares of Common Stock in exchange for the transfer of substantially all the assets of SoyMor and assumed certain liabilities. The assets of SoyMor consisted primarily of a 30 mmgy nameplate capacity biodiesel facility located in Albert Lea, Minnesota, as well as, a co-located soy lecithin production facility. The Company recorded a gain from the equity investment of $661 due to step-up acquisition accounting for SoyMor. The equity investment gain was recorded in income (loss) from equity investments on the condensed consolidated statement of operations.

The Company determined that the SoyMor assets did not constitute a business as defined under ASC Topic 805, Business Combinations (ASC Topic 805), on the basis that the SoyMor assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit or return to the Company. As a result, the Company accounted for the SoyMor assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition, and no significant contingent assets or liabilities were acquired or assumed in the acquisition.

The following table summarized the allocation of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition:

	Allocation at July 12, 2011
Assets (liabilities) acquired:
Inventory	$	78
Property, plant and equipment	18,886
Debt	(1,001		)
Fair value of investment prior to allocation	(1,613		)
Fair value of common stock issued	$	16,350

The acquisition price is summarized as follows:

	Value at July 12, 2011
	Fair Value		Fair Value per Share
Fair value of stock issued:
Common Stock	$	16,350	$	24.28

Seneca Landlord, LLC

On January 24, 2012, the Company acquired the Seneca Facility pursuant to the exercise of its option under the Funding, Investor Fee and Put/Call Agreement (Put/Call Agreement). Pursuant to the Put/Call Agreement, the Company acquired all of

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the equity interest of Seneca Landlord, which owned the Seneca Facility, in exchange for $12,000, of which approximately $937 was previously paid, and 60,000 shares of the Company’s Class A Common Stock.

Seneca Landlord was determined to be a consolidated variable interest entity (VIE) prior to the exercise of the option available under the Put/Call Agreement, thus the basis of the assets recorded were not impacted by its exercise. The payment of cash and Class A Common Stock shown below was used to relieve the Company’s obligation reflected on the condensed consolidated balance sheet as the Seneca Holdco Liability.

A summary of the acquisition price is as follows:

	Value at January 24, 2012
	Fair Value		Fair Value per Share
Fair value of consideration issued:
Cash	$	11,063
Class A Common Stock	591		$	9.85
Total	$	11,654

North Texas Bio Energy, LLC

On October 26, 2012, the Company and REG New Boston, LLC (New Boston), a subsidiary of the Company, completed its acquisition of North Texas Bio Energy, LLC (NTBE). Pursuant to the Asset Purchase Agreement, the Company acquired substantially all of the assets of NTBE in exchange for 900,000 shares of the Company’s common stock and $324 in cash. The assets of NTBE consisted of an idled 15 mmgy nameplate capacity biodiesel facility and related assets, located in New Boston, Texas.

The Company determined that the NTBE assets did not constitute a business as defined under ASC Topic 805 on the basis that the NTBE assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit or return to the Company. As a result, the Company accounted for the NTBE assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition, and no significant contingent assets or liabilities were acquired or assumed in the acquisition.

The following table summarized the allocation of the purchase price to the fair values of the assets acquired at the date of acquisition:

	Allocation at October 26, 2012
Assets acquired:
Other current assets	$	17
Property, plant and equipment	4,636
Fair value of common stock issued	$	4,653

The acquisition price is summarized as follows:

	Value at October 26, 2012
	Fair Value		Fair Value per Share
Fair value of consideration issued:
Cash	$	324
Class A Common Stock	4,329		$	4.81
Total	$	4,653

BullDog Biodiesel, LLC

On November 16, 2012, the Company and REG Atlanta, LLC (Atlanta), a subsidiary of the Company, completed its acquisition of BullDog Biodiesel, LLC. Pursuant to the Asset Purchase Agreement, the Company acquired substantially all of

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the assets of BullDog in exchange for $1,323 in cash and $1,336 of in-kind contribution. The assets of BullDog consisted of an idled 15 mmgy nameplate capacity biodiesel facility and related assets, located near Atlanta, Georgia. The facility had been idled prior to our acquisition and will remain so until certain repairs or upgrades are made.

The Company determined that the BullDog assets were not a business as defined under ASC Topic 805 on the basis that the BullDog assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit or return to the Company. As a result, the Company accounted for the BullDog assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition, and no significant contingent assets or liabilities were acquired or assumed in the acquisition.

The following table summarized the allocation of the purchase price to the fair values of the assets acquired at the date of acquisition:

	Allocation at November 16, 2012
Assets acquired:
Other current assets	$	13
Property, plant and equipment	2,646
Total	$	2,659

The acquisition price is summarized as follows:

	Value at November 16, 2012
Fair value of consideration issued:
Cash	$	1,323
In-kind contribution	1,336
Total	$	2,659

Soy Energy, LLC

On July 30, 2013, the Company and REG Mason City, LLC (REG Mason City), a subsidiary of the Company, completed the acquisition of substantially all the assets of Soy Energy, LLC's (Soy Energy) assets in exchange for $10,933 cash and the issuance of a $5,135 promissory note to Soy Energy. The assets of Soy Energy consisted of a 30 mmgy nameplate capacity biodiesel facility and related assets, located in Mason City, Iowa.

The Company determined that the Soy Energy assets were not a business as defined under ASC Topic 805, on the basis that the assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit to the Company. As a result, the Company accounted for the Soy Energy assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition.

The allocation of the purchase price to the fair values of the assets acquired at the date of acquisition is as follows:

	Allocation at July 30, 2013
Assets (liabilities) acquired:
Property, plant and equipment	$	16,085
Other current liabilities	(17		)
Total	$	16,068

NOTE 6—VARIABLE INTEREST ENTITIES

The Company has a 50% ownership in 416 S. Bell, LLC (Bell, LLC), a VIE joint venture that owns and leases to the Company its corporate office building in Ames, Iowa. Commencing January 1, 2011, the Company has the right to execute a call option with the joint venture member, Dayton Park, LLC (Dayton Park), to purchase Bell, LLC and commencing on January 1, 2013, Dayton Park has the right to execute a put option with the Company to sell Bell, LLC. The Company

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determined it was the primary beneficiary of Bell, LLC and has consolidated Bell, LLC into the Company’s financial statements since January 1, 2011. The Company is the primary beneficiary due to its ownership interest and having an exercisable call option that allows the Company to direct the activities that most significantly impact Bell, LLC’s economic performance and gives the Company the majority of the benefit from the use of Bell, LLC’s assets. Through the initial consolidation of Bell, LLC, the Company had an outstanding promissory note balance of $4,757 with interest accrued monthly at a rate of 5.7% per annum, with a maturity date of February 15, 2013. During February 2013, the Bell, LLC promissory note was amended to reflect the current interest rate of 3.5% per annum and maturity date of January 14, 2018. The note is secured by a mortgage interest in the office building.

The following table summarizes the fair values of the assets and liabilities recorded by the Company as a result of the consolidation of Bell, LLC:

	Allocation at January 1, 2011
Assets (liabilities) acquired:
Cash	$	22
Property, plant and equipment	5,881
Noncurrent assets	4
Other current liabilities	(17		)
Debt	(4,757		)
Other noncurrent liabilities	(567		)
Carrying value of previously held equity method investment	$	566

NOTE 7—INVENTORIES

Inventories consist of the following at December 31:

	2013		2012
Raw materials	$	13,393	$	9,835
Work in process	1,456		448
Finished goods	70,965		34,923
Total	$	85,814	$	45,206

NOTE 8—PROPERTY, PLANT AND EQUIPMENT

Company owned property, plant and equipment consists of the following at December 31:

	2013			2012
Land	$	2,442		$	987
Building and improvements	72,453			50,688
Leasehold improvements	6,887			6,879
Machinery and equipment	166,552			127,167
	248,334			185,721
Accumulated depreciation	(37,362		)	(28,097		)
	210,972			157,624
Construction in process	75,072			85,261
Total	$	286,044		$	242,885

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Property, plant and equipment of consolidated VIE’s consists of the following at December 31:

	2013			2012
Land	$	404		$	404
Building and improvements	6,290			6,290
	6,694			6,694
Accumulated depreciation	(1,514		)	(1,289		)
Total	$	5,180		$	5,405

NOTE 9—INTANGIBLE ASSETS

Amortizing intangible assets consist of the following at December 31:

	2013			2012
Raw material supply agreement intangibles	$	5,502		$	4,919
Ground lease	200			200
Accumulated amortization	(835		)	(510		)
Total intangible assets	$	4,867		$	4,609

The raw material supply agreement acquired is amortized over its 15 year term based on actual usage under the agreement and expires in 2025. The Company determined the estimated amount of raw materials to be purchased over the life of the agreement to calculate a per pound rate of consumption. The rate is then multiplied by the actual usage each period for expense reporting purposes.

Amortization expense of $325, $252 and $200 for intangible assets is included in cost of goods sold – biodiesel in the statement of operations for the years ended December 31, 2013, 2012 and 2011, respectively.

Estimated amortization expense for fiscal years ended December 31 is as follows:

2014	$	418
2015	479
2016	492
2017	506
2018	521
Thereafter	2,451
Total	$	4,867

NOTE 10—OTHER ASSETS

Prepaid expenses and other current assets consist of the following at December 31:

	2013		2012
Commodity derivatives and related collateral, net	$	13,675	$	7,637
Prepaid insurance	1,804		1,109
Prepaid service contracts	610		552
Prepaid storage	—		515
Deposits	293		857
RIN inventory	6,455		99
Income taxes receivable	2,197		4,735
Other	534		308
Total	$	25,568	$	15,812

RIN inventory is valued at the lower of cost or market and consists of (i) RINs the Company generates in connection with its production of biodiesel and (ii) RINs acquired from third parties. RINs generated by the Company are recorded at no cost, as these RINs are government incentives and not a tangible output from its biodiesel production. The cost of RINs acquired from

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third parties is determined using the average cost method. RIN market value is based upon pricing as reported by the Oil Price Information Service (OPIS). Since RINs generated by the Company have zero cost associated to them, the lower of cost or market adjustment in RIN inventory reflects only the value of RINs obtained from third parties. RIN inventory values were adjusted in the amount of $1,277 and $21 at December 31, 2013 and 2012, respectively, to reflect the lower of cost or market.

Other noncurrent assets consist of the following at December 31:

	2013		2012
Debt issuance costs (net of accumulated amortization of $715 and $923, respectively)	$	832	$	946
Spare parts inventory	3,671		3,546
Other	526		859
Total	$	5,029	$	5,351

NOTE 11—ACCRUED EXPENSES AND OTHER LIABILITIES

Accrued expenses and other liabilities consist of the following at December 31:

	2013		2012
Accrued property taxes	$	1,271	$	1,201
Accrued employee compensation	8,138		3,375
Accrued interest	109		47
Unfavorable lease obligation, current portion	1,129		1,129
Incentive stock liability	583		423
Excise tax payable	545		136
Other	530		164
Total	$	12,305	$	6,475

Other noncurrent liabilities consist of the following at December 31:

	2013		2012
Fair value of interest rate swap	$	19	$	46
Liability for unrecognized tax benefits	1,900		1,900
Deferred grant revenue	745		745
Straight-line lease liability	3,581		4,011
Bell, LLC member investment on consolidation	593		590
Total	$	6,838	$	7,292

NOTE 12—BORROWINGS

The Company’s term borrowings at December 31 are as follows:

	2013		2012
REG Danville term loan	$	5,626	$	10,060
REG Newton term loan	18,143		21,175
REG Mason City term loan	5,135		—
Other	1,247		1,496
Total notes payable	$	30,151	$	32,731
Bell, LLC promissory note - variable interest entity	$	4,029	$	4,313

REG Danville, LLC

On November 3, 2011, REG Danville, LLC entered into an Amended and Restated Loan Agreement with Fifth Third Bank (Fifth Third Loan). The renewed Fifth Third Loan had a three year term with an automatic one year extension upon certain cumulative principal payment thresholds being met. The loan requires monthly principal payments of $150 and interest

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based on a rate of LIBOR plus 5% per annum. The effective rate was 5.17% at December 31, 2013. The loan is secured by the Company's Danville facility. The loan agreement contains various loan covenants that restrict REG Danville’s ability to take certain actions, including prohibiting it in certain circumstances from making payments to the Company. The Fifth Third Loan requires semi-annual excess cash flow payments which began on December 31, 2011. REG Danville must pay Fifth Third a principal payment in the amount equal to 50% of REG Danville's Excess Cash Flow. The Fifth Third Loan agreement defines excess cash flow as REG Danville’s EBITDA plus certain affiliate payments less principal payments, interest expense, taxes and unfunded maintenance capital expenditures. The excess cash flow payment required for December 31, 2013 and 2012 are $1,425 and $1,429, respectively.

On March 4, 2013, REG Danville entered into the First Amendment to the Amended and Restated Loan Agreement (First Amendment) with Fifth Third Bank. The First Amendment includes changes to the debt covenants based upon the Company executing a tax sharing agreement with REG Danville. The tax sharing agreement provides that REG Danville will share the liability for income taxes via an allocation based upon a separate-return approach. Although the Company is not directly compensated for the use of carry-forward attributes, the tax sharing agreement allows each affiliate to benefit from net operating losses and tax credits that each generates.

On January 28, 2014, REG Danville received approval from Fifth Third Bank of extending the maturity date of its debt to November 3, 2015 based on meeting requirements of cumulative principal payments of $6,400 towards the debt.

REG Newton, LLC

On December 4, 2013, REG Newton, LLC entered into an Amended and Restated Master Loan Agreement, effective December 1, 2013, with AgStar Financial Services, PCA (AgStar) which replaced the existing Master Loan Agreement, dated March 8, 2010. The Amended and Restated Agreement extends the maturity of the existing term loan by five years until December 1, 2018 and increases the term loan by $5,000. The REG Newton term debt is secured by all plant assets owned by REG Newton. Interest is to be accrued based on 30-day LIBOR plus 400 basis points (effective rate at December 31, 2013 was 4.17%). REG Newton is required to make monthly principal and interest payments of approximately $270. The loan agreement requires REG Newton to make an annual payment equal to 50% of its Excess Cash Flow calculated based upon the prior year’s audited financial statements within 120 days of the fiscal year end. The AgStar Loan agreement defines Excess Cash Flow as EBITDA, less the sum of required debt payments, interest expense, up to $500 in maintenance capital expenditure and allowed distributions. There were no required excess cash flow payments for 2013 or 2012.

REG Mason City, LLC

On July 30, 2013, REG Mason City entered into an agreement with Soy Energy (Soy Energy Loan). The Soy Energy Loan has a six-year term and is secured by the Mason City facility. The loan requires interest only payments for the first eight months and monthly principal and interest payments of approximately $92 starting in April 2014. Interest is based on a fixed rate of 5%. The loan agreement contains a covenant that restricts REG Mason City's ability to take certain actions, including prohibiting it in certain circumstances from making payments to the Company. The Soy Energy Loan requires annual excess cash flow payments equal to 50% of its excess cash flow. The agreement defines excess cash flow as REG Mason City's EBITDA less principal payments, interest expense, and maintenance capital expenditures. There was no required excess cash flow payment for 2013.

REG Marketing & Logistics Group, LLC & REG Services Group, LLC

The Company’s revolving borrowings at December 31 are as follows:

	2013		2012
Total revolving loans (current)	$	10,986	$	—

The Company has a revolving credit facility that two of the Company’s subsidiaries entered into on December 23, 2011 with a bank group and Wells Fargo Capital Finance, LLC, as agent, (the "Wells Fargo Revolver"). The Company guaranteed the obligations of its subsidiaries under the Wells Fargo Revolver, which provides for the extension of revolving loans in an aggregate principal amount not to exceed $40,000, based on eligible inventory, accounts receivable and blenders tax credits of the subsidiary borrowers and the inventory of certain affiliates. There is the opportunity for additional lender increases up to a maximum commitment of $60,000. The Wells Fargo Revolver has a stated maturity date of December 23, 2016. Amounts borrowed under the Wells Fargo Revolver bear interest, in the case of LIBOR rate loans, at a per annum rate equal to the LIBOR rate plus the LIBOR Rate Margin (as defined), which may range from 2.50% to 3.25%. All other amounts borrowed that are not LIBOR rate loans bear interest at a rate equal to the greatest of (i) 1.75% per annum, (ii) the Federal Funds Rate

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plus 0.5%, (iii) the LIBOR Rate plus 1.5%, or (iv) the “prime rate” plus 1.00% to 1.75%. The effective interest rate was 3.75% at December 31, 2013.

The Wells Fargo Revolver contains various loan covenants that restrict each subsidiary borrower’s ability to take certain actions, including restrictions on incurrence of indebtedness, creation of liens, mergers or consolidations, dispositions of assets, repurchase or redemption of capital stock, making certain investments, entering into certain transactions with affiliates or changing the nature of the subsidiary’s business. In addition, the subsidiary borrowers are required to maintain a Fixed Charge Coverage Ratio (as defined in the Wells Fargo Revolver) of at least 1.0 to 1.0 and to have Excess Availability (as defined in the Wells Fargo Revolver) of at least $4,000. The new revolving credit agreement is secured by the subsidiary borrowers’ membership interests and substantially all of their assets, and the inventory of certain subsidiaries, subject to a $25,000 limitation.

The credit agreements of the subsidiaries mentioned above contain various customary affirmative and negative covenants. Many of the agreements, but not all, also contain certain financial covenants, including a current ratio, net worth ratio, fixed charge coverage ratio, maximum funded debt to earnings before interest depreciation and amortization ratio and a maximum capital expenditure limitation. Negative covenants include restrictions on incurring certain liens; making certain payments, such as distributions and dividend payments; making certain investments; transferring or selling assets; making certain acquisitions; and incurring additional indebtedness. The agreements generally provide that the payment of obligations may be accelerated upon the occurrence of customary events of default, including, but not limited to, non-payment, change of control or insolvency.

As of December 31, 2013, the Company was in compliance with all restrictive financial covenants associated with its borrowings.

Maturities of the term borrowings are as follows for the years ending December 31:

2014	$	7,029
2015	6,699
2016	4,380
2017	4,218
2018	11,223
Thereafter	631
Total	34,180
Less: current portion	(7,029		)
	$	27,151

NOTE 13—INCOME TAXES

The Company historically included revenue from certain government incentive payments in taxable income on its federal and state income tax returns. In connection with the U.S. Internal Revenue Service audits of the 2011 and 2010 years, the Company proposed that these government incentive payments should be excluded from taxable income. The U.S. Internal Revenue Service accepted this position and on August 1, 2013, the Company received notification from the congressional Joint Committee on Taxation approving the audit results and associated refund claim. Based on information obtained in connection with these audits, the Company changed its position related to these government incentive payments to exclude them from taxable income for years 2008 through the current year. This change had a significant impact on the Company’s provision for income taxes in 2013 since this change reduced taxable income in each year between 2008 and 2013. The majority of this reduction increased the Company's net operating loss carry forwards available to offset future taxable income rather than resulting in a refund of taxes previously paid. As a result of excluding these government incentive payments, the Company currently has cumulative losses in recent years and has established a valuation allowance to reduce its total deferred tax assets to the amount more-likely-than-not to be realized

The tax effects of temporary differences that give rise to the Company’s deferred tax assets and liabilities at December 31 are as follows:

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	2013						2012
	Current			Noncurrent			Current			Noncurrent
Deferred Tax Assets:
Goodwill	$	—		$	10,791		$	—		$	11,999
Net operating loss carryforwards	—			81,761			—			4,806
Tax credit carryforwards	—			3,068			—			3,068
Start-up costs	—			1,231			—			1,362
Stock-based compensation	—			2,137			—			1,214
Houston terminal lease	—			1,892			—			2,139
Accrued compensation	2,908			—			1,113			—
Inventory capitalization	1,053			—			985			—
Allowance for doubtful accounts	866			—			802			—
Other	150			1,064			236			678
Deferred tax assets	4,977			101,944			3,136			25,266
Deferred Tax Liabilities:
Prepaid expenses	(949		)	—			(596		)	—
Property, plant and equipment	—			(30,568		)	—			(23,425		)
Deferred revenue	(4,127		)	—			—			—
Other	(8		)	(731		)	(28		)	(872		)
Deferred tax liabilities	(5,084		)	(31,299		)	(624		)	(24,297		)
Net deferred tax assets (liabilities)	(107		)	70,645			2,512			969
Valuation allowance	(3,580		)	(73,336		)	—			—
Net deferred taxes	$	(3,687	)	$	(2,691	)	$	2,512		$	969

In evaluating available evidence, the Company considers, among other factors, historical financial performance, expectation of future earnings, length of statutory carry forward periods and ability to carry back losses to prior periods, experience with operating loss and tax credit carry forwards not expiring unused, tax planning strategies and timing for the of reversals of temporary differences. In evaluating losses, management considers the nature, frequency and severity of losses in light of the conditions giving rise to those losses. As a result of excluding government incentive payments, the Company currently has cumulative losses in recent years and has established a valuation allowance of to reduce its total deferred tax assets to the amount more-likely-than-not to be realized. Activity regarding the valuation allowance for deferred tax assets was as follows:

	2013		2012			2011
Beginning of year balance	$	—	$	7,337		$	38,662
Changes in valuation allowance charged to income	76,916		(7,337		)	(31,325		)
End of year balance	$	76,916	$	—		$	7,337

At December 31, 2013, the Company has recorded a deferred tax asset of $81,761 reflecting the benefit of federal and state net operating loss carry-forwards. Federal net operating losses total $208,129 and will begin to expire in 2028, while the amount and expiration dates of state net operating losses vary by jurisdiction. Changes in ownership of the Company, as defined by Section 382 of the Internal Revenue Code of 1986, as amended, may limit the utilization of federal and state net operating losses and credit carry forwards in any one year. The Company has performed a study to determine the impact of changes in ownership on utilization of carry forward attributes, the results of which have been incorporated into our financial statements.

At December 31, 2013, the Company had federal small agri-biodiesel producer tax credit carry-forwards of approximately $3,068. If not utilized, these small agri-biodiesel producer tax credits will expire at various times between 2026 and 2028.

Income tax benefit (expense) for the years ended December 31 is as follows:

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	2013			2012			2011
Current income tax benefit (expense)
Federal	$	2,432		$	(912	)	$	(4,883	)
State	2,492			(588		)	(3,066		)
	4,924			(1,500		)	(7,949		)
Deferred income tax benefit (expense)
Federal	15,297			(9,857		)	(4,709		)
State	3,736			(1,187		)	(1,703		)
Net operating loss carryforwards created (utilized)	48,024			3,753			(19,946		)
	67,057			(7,291		)	(26,358		)
Income tax benefit (expense) before valuation allowances	71,981			(8,791		)	(34,307		)
Deferred tax valuation allowances	(76,916		)	7,337			31,325
Income tax expense	$	(4,935	)	$	(1,454	)	$	(2,982	)

A reconciliation of the reported amount of income tax expense to the amount computed by applying the statutory federal income tax rate to earnings from continuing operations before income taxes is as follows:

	2013			2012			2011
U.S. Federal income tax expense at a statutory rate of 35 percent	$	(66,955	)	$	(8,256	)	$	(32,090	)
State taxes, net of federal income tax benefit	6,905			(684		)	(3,020		)
Tax position on government incentives	131,829			—			—
Loss on embedded derivative	—			4,191			2,779
Reduction in stock-based compensation deferred tax asset	—			(3,686		)	—
Domestic production activities deduction	—			—			307
Seneca Landlord	—			200			(1,701		)
Unrecognized tax benefits	—			(400		)	—
Other	202			(156		)	(582		)
Total (expense) benefits for income taxes before valuation allowances	71,981			(8,791		)	(34,307		)
Valuation allowances	(76,916		)	7,337			31,325
Total expense for income taxes	$	(4,935	)	$	(1,454	)	$	(2,982	)

In accordance with ASC Topic 740, Income Taxes, the Company periodically reviews its portfolio of uncertain tax positions. An uncertain tax position represents the Company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a tax return not yet filed, that has not been reflected in measuring income tax expense for financial reporting purposes. The Company does not recognize income tax benefits associated with uncertain tax positions where it is determined that it is not more-likely-than-not, based on the technical merits, that the position will be sustained upon examination.

A reconciliation of the total amounts of unrecognized tax benefits at December 31 is as follows:

	2013		2012		2011
Beginning of year balance	$	1,900	$	1,500	$	1,500
Increases to tax positions expected to be taken	—		—		—
Increases to tax positions taken during prior years	—		400		—
Decreases to tax positions taken during prior years	—		—		—
Decreases due to lapse of statute of limitations	—		—		—
End of year balance	$	1,900	$	1,900	$	1,500

The amount of unrecognized tax benefits that would affect the effective tax rate if the tax benefits were recognized was $0, $1,428 and $1,041 at December 31, 2013, 2012 and 2011, respectively. The remaining liability for unrecognized tax benefits is related to tax positions for which there is a related deferred tax asset. The Company does not believe it is reasonably possible that the amounts of unrecognized tax benefits existing as of December 31, 2013 will significantly increase or decrease

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over the next twelve months. Interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense. The Company has not recorded any such amounts in the periods presented.

The U.S. Internal Revenue Service has examined the Company's federal income tax returns through 2008, as well as 2010 and 2011. All other years are subject to examination, while various state income tax returns also remain subject to examination by state taxing authorities.

NOTE 14—STOCK-BASED COMPENSATION

On October 26, 2011, the stockholders approved the 2009 Stock Incentive Plan (the 2009 Plan) which authorizes up to 4,160,000 shares of Company Common Stock to be issued for the award of restricted stock, restricted stock units (RSU’s) and stock appreciation rights (SAR’s) at the discretion of the Company Board as compensation to employees, consultants of the Company and to non-employee directors. The expense is measured at the grant-date fair value of the award and recognized as compensation expense on a straight-line basis over the service period, which is the vesting period. There was no cash flow impact resulting from the grants of these awards. The 2009 Plan is generally protected from anti-dilution via adjustments for any stock dividends, stock split, combination or other recapitalization.

The Company recorded stock-based compensation expense of $5,416, $13,119 and $5,934 for the years ended December 31, 2013, 2012 and 2011, respectively. The stock-based compensation costs were included as a component of selling, general and administrative expenses. At December 31, 2013, there was $7,655 of unrecognized compensation expense related to unvested awards, which is expected to be recognized over a period of approximately 3.7 years.

Stock Options

The following table summarizes information about Common Stock options granted, exercised, forfeited, vested and exercisable:

	Number of Options		Weighted  Average Exercise Price	Weighted Average Contractual Term
Options outstanding - January 1, 2011	87,526		23.75	5.6 years
Granted	—
Exercised	—
Forfeited	(500	)	23.75
Options outstanding - December 31, 2011	87,026		23.75	4.6 years
Granted	—
Exercised	—
Forfeited	—
Options outstanding - December 31, 2012	87,026		23.75	3.6 years
Granted	—
Exercised	—
Forfeited	—
Options outstanding - December 31, 2013	87,026		23.75	2.6 years
Options exercisable - December 31, 2013	87,026		23.75	2.6 years

All stock options that remain outstanding are fully vested and exercisable. There was no intrinsic value of options granted, exercised or outstanding during the periods presented.

Restricted Stock Units

The following table summarizes information about the Company’s Common Stock RSU’s granted, vested, exercised and forfeited:

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	Number of Awards		Weighted Average Issue Price
Awards outstanding - January 1, 2011	1,154,086			$12.50
Issued	299,033			$33.75
Vested and restriction lapsed	(50,000	)		$33.75
Forfeited	(6,400	)		$12.53
Awards outstanding - December 31, 2011	1,396,719			$16.29
Issued	411,456			$8.93
Vested and restriction lapsed	(1,294,519	)		$13.65
Forfeited	(8,040	)		$10.51
Awards outstanding - December 31, 2012	505,616			$17.14
Issued	204,183			$11.96
Vested and restriction lapsed	(192,190	)		$15.72
Forfeited	(16,681	)		$9.98
Awards outstanding - December 31, 2013	500,928			$15.81

The RSU’s convert into one share of common stock upon vesting. RSU’s cliff vest at the earlier of expressly provided service or performance conditions. The service period for these RSU awards, excluding those issued to the Company’s Board of Directors (one year) and certain executive management (four year), is a three year period from the grant date. The performance conditions provide for accelerated vesting upon various conditions including a change in control or other common stock liquidity events. As a result of the Company’s IPO on January 24, 2012 (see “Note 3— Stockholders’ Equity of the Company”) a common stock liquidity-related performance condition was satisfied and 1,294,519 shares vested in relation to this event during 2012.

Stock Appreciation Rights

The following table summarizes information about SAR’s granted, forfeited, vested and exercisable:

	Number of SAR’s		Weighted  Average Exercise Price	Weighted Average Contractual Term
SAR's outstanding - January 1, 2012	—
Granted	1,055,805		9.47
Exercised	—
Forfeited	(1,960	)	9.19
SAR's outstanding - December 31, 2012	1,053,845		9.47	9.3 years
Granted	335,057		12.85
Exercised	(5,106	)	8.92
Forfeited	(10,727	)	10.85
SAR's outstanding - December 31, 2013	1,373,069		10.28	8.6 years
SAR's exercisable - December 31, 2013	250,370		9.49	8.6 years
SAR's expected to vest - December 31, 2013	1,136,280		10.45	8.6 years

The SAR’s vest 25% annually on each of the four anniversary dates following the grant date and expire after ten years. The fair value of each SAR grant is estimated using the Black-Scholes option-pricing model as set forth in the table below:

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	2013	2012
The weighted average fair value of stock appreciation rights issued (per unit)	$2.54 - $6.51	$2.73 - $3.99
Dividend yield	—%	—%
Weighted average risk-free interest rate	0.7% - 1.8%	0.7% - 0.9%
Weighted average expected volatility	40%	40%
Expected life in years	6.25	6.25

There was no intrinsic value of options granted, exercised or outstanding during the periods presented.

NOTE 15—RELATED PARTY TRANSACTIONS

Related parties include certain investors as well as entities in which the Company has an equity method investment or an investment combined with a MOSA or board seat. Investors defined as related parties include (i) the investor having ten percent or more ownership, including convertible preferred stock, in the Company or (ii) the investor holding a board seat on the Company Board. After the IPO, the number of related parties decreased due to the dilution of ownership of prior investors as well as the reduction of the number of board seats on the Company Board held by related party investors. The Company will report related party transactions before and after the IPO based on the related party characteristics mentioned above.

Summary of Related Party Transactions - Consolidated Statements of Operations
		2013		2012		2011
	Revenues - Biodiesel sales (a)	$	—	$	6	$	5,161
	Cost of goods sold - Biodiesel (b)	$	49,358	$	54,364	$	263,562
	Selling, general and administrative expenses (c)	$	37	$	158	$	1,505
	Interest expense (d)	$	30	$	32	$	761
(a)	Represents transactions with related parties as follows:
	West Central	$	—	$	6	$	11
	Bunge	—		—		2,124
	ED & F Man	—		—		3,026
		$	—	$	6	$	5,161
(b)	Represents transactions with related parties as follows:
	West Central	$	49,358	$	50,415	$	48,510
	Bunge	—		3,949		203,092
	ED & F Man	—		—		11,960
		$	49,358	$	54,364	$	263,562
(c)	Represents transactions with related parties as follows:
	West Central	$	37	$	45	$	102
	Bunge	—		113		1,403
		$	37	$	158	$	1,505
(d)	Represents transactions with related parties as follows:
	West Central	$	30	$	23	$	96
	Bunge	—		9		308
	USRG	—		—		357
		$	30	$	32	$	761

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Summary of Related Party Balances - Consolidated Balance Sheets
		2013		2012
	Accounts receivable (a)	$	426	$	771
	Other assets (a)	$	35	$	692
	Accounts payable (a)	$	552	$	2,950
(a)	Represents balances with West Central

West Central Cooperative

The Company purchases once-refined soybean oil from West Central Cooperative (West Central) and is required to pay interest for amounts owed on extended trade terms. The Company also had biodiesel and co-product sales to West Central.

West Central leases the land under the Company’s production facility at Ralston, Iowa to the Company at an annual cost of one dollar. The Company is responsible for the property taxes, insurance, utilities and repairs for the facility relating to this lease. The lease has an initial term of twenty years and the Company has options to renew the lease for an additional thirty years.

In 2006, the Company executed an asset use agreement with West Central to provide for the use of certain assets, such as office space, maintenance equipment and utilities. The agreement requires the Company to pay West Central its proportionate share of certain costs incurred by West Central. This agreement has the same term as the land lease. During February 2012, the Company renegotiated the asset use agreement. The new agreement provides for the use of certain assets, such as buildings, equipment and utilities, which will be charged to the Company based on fixed and variable components.

At the time of the signing of the contribution agreement, the Company entered into a contract for services with West Central, to provide certain corporate and administrative services such as human resources, information technology and accounting. The agreement requires the Company to pay West Central the proportionate share of the costs associated with the provision of services, plus a 15% margin. The agreement had an initial one-year term and is cancellable thereafter upon six months’ notice by either party. As part of the renegotiated asset usage agreement, the services agreement was cancelled in February 2012.

In connection with the SoyMor acquisition, REG Albert Lea, LLC (REG Albert Lea) assumed a loan with West Central. REG Albert Lea was required to make monthly interest payments. The loan was paid off in May 2012.

Bunge North America

Prior to 2012, the Company purchased feedstocks from Bunge North America, Inc. (Bunge) for the production of biodiesel. The costs associated with the purchased feedstocks were reflected in costs of goods sold – biodiesel when sold to the end customer. The Company also made sales of biodiesel and raw materials to Bunge.

The Company entered into an agreement for Bunge to provide services related to the procurement of raw materials and the purchase and resale of biodiesel produced by the Company. The Company was required to pay interest for the aggregate outstanding amounts owed to Bunge. Also, as part of the agreement, the Company was required to pay an incentive fee to Bunge for meeting certain hedging goals utilizing Bunge’s advice. On November 8, 2011, the Company gave notice of termination to Bunge in accordance with the agreement. The agreement expired May 2012.

ED & F Man Holdings Ltd.

In August 2006, the Company entered into a glycerin marketing agreement and various terminal lease agreements with one of ED & F Man Holdings Ltd’s (ED & F Man) then wholly-owned subsidiaries, Westway Feed Products, Inc. (Westway). This contract was terminated and expired in August 2011.

The Company also entered into a tolling agreement with ED & F Man for biodiesel to be produced out of the Company’s Houston, Texas biodiesel production facility during 2010. Additionally, the Company purchased biodiesel from ED & F Man for resale and had raw material sales to ED & F Man. There has been no activity or agreements in place during 2013 or 2012.

USRG Holdco IX, LLC

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In August 2011, REG Albert Lea entered into a loan with USRG in the amount of $10,000 for the purpose of purchasing feedstocks and chemicals for REG Albert Lea’s biodiesel production facility. REG Albert Lea was required to pay interest monthly for the aggregate amount owned to USRG. The loan was repaid in due course prior to maturity in December 2011.

NOTE 16—OPERATING LEASES

The Company leases certain land and equipment under operating leases. Total rent expense under operating leases was $12,549, $11,114 and $7,299 for the years ended December 31, 2013, 2012 and 2011, respectively. For each of the next five calendar years and thereafter, future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess of one year are as follows:

	Total Payments
2014	$	11,948
2015	9,401
2016	8,856
2017	8,339
2018	8,001
Thereafter	30,243
Total minimum payments	$	76,788

The Company's leases consist primarily of access to distribution terminals, biodiesel storage facilities, railcars and vehicles. At the end of the lease term the Company, generally, has the option to (a) return the leased equipment to the lessor, (b) purchase the property at its then fair value or (c) renew its lease at the then fair rental value on a year-to-year basis or for an agreed upon term. Certain leases allow for adjustment to minimum rentals in future periods as determined by the Consumer Price Index.

NOTE 17 — DERIVATIVE INSTRUMENTS

The Company has entered into derivatives to hedge its exposure to price risk related to feedstock inventory and biodiesel finished goods inventory. Additionally, the Company has entered into an interest rate swap with the objective of managing risk caused by fluctuations in interest rates associated with the REG Danville note payable. The Company does not enter into derivative transactions for trading purposes.

All of the Company’s derivatives are designated as non-hedge derivatives and are utilized to manage cash flow. Although the contracts may be effective economic hedges of specified risks, they are not designated as, nor accounted for, as hedging instruments. Unrealized gains and losses on commodity futures, swaps and options contracts used to hedge feedstock purchases or biodiesel inventory are recognized as a component of biodiesel costs of goods sold reflected in current results of operations. Commodity hedge gains and losses are generally offset by other corresponding changes in gross margin through changes in either biodiesel sales price and/or feedstock price. Unrealized gains and losses on the interest rate swap are recorded in other income (expense), net in the Company’s statements of operations. All derivative financial instruments are recorded on the balance sheet at fair value.

As of December 31, 2013, the Company has entered into heating oil and soybean oil derivative instruments and an interest rate swap agreement. The Company has entered into heating oil and soy oil commodity-based derivatives in order to protect gross profit margins from potentially adverse effects of price volatility on biodiesel sales where the prices are set at a future date. As of December 31, 2013, the Company had 1,076 open commodity contracts. In addition, the Company manages interest rate risk associated with the REG Danville variable interest rate note payable using a fixed rate swap. The interest rate swap agreement has an outstanding notional value of $3,295 as of December 31, 2013. The agreement effectively fixes the variable component of the interest rate on the Term Loan at 0.92% through July 2015. The fair value of the interest rate swap agreements was $19 and $46 at December 31, 2013 and 2012, respectively, and is recorded in the other noncurrent liabilities.

As of December 31, 2013, the Company posted $13,896 of collateral associated with its commodity-based derivatives with a net liability position of $221.

The Company’s preferred stock embedded conversion feature related to the Series A Preferred Stock that was converted upon our IPO is further discussed in “Note 2—Summary of Significant Accounting Policies.”

The following tables provide details regarding the Company’s derivative financial instruments:

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	As of December 31, 2013
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swap		$	—	Other liabilities	$	19
Commodity futures	Prepaid expenses and other assets	62		Prepaid expenses and other assets	—
Commodity swaps	Prepaid expenses and other assets	75		Prepaid expenses and other assets	491
Commodity options	Prepaid expenses and other assets	188		Prepaid expenses and other assets	55
Total derivatives		$	325		$	565

	As of December 31, 2012
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swap		$	—	Other liabilities	$	46
Commodity swaps	Prepaid expenses and other assets	305		Prepaid expenses and other assets	476
Commodity options	Prepaid expenses and other assets	143		Prepaid expenses and other assets	388
Total derivatives		$	448		$	910

		2013			2012			2011
	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income on Derivatives			Amount of Gain (Loss) Recognized in Income on Derivatives			Amount of Gain (Loss) Recognized in Income on Derivatives
Embedded derivative	Change in fair value of preferred stock conversion feature embedded derivatives	$	—		$	11,975		$	7,939
Interest rate swap	Other income (loss)	26			(5		)	571
Commodity futures	Cost of goods sold - Biodiesel	258			(4		)	(97		)
Commodity swaps	Cost of goods sold - Biodiesel	(5,775		)	(4,254		)	2,557
Commodity options	Cost of goods sold - Biodiesel	(139		)	(364		)	567
Total		$	(5,630	)	$	7,348		$	11,537

The tables below represent the amounts subject to an enforceable master netting arrangement not otherwise disclosed:

	2013
	Asset Derivatives			Liability Derivatives
Gross amounts recognized	$	14,221		$	565
Gross amounts offset in the Statement of Financial Position	(325		)	(325		)
Net amounts presented in the Statement of Financial Position	13,896			240
Gross amounts not offset in the Statement of Financial Position	(13,896		)	—
Net amount	$	—		$	240

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	2012
	Asset Derivatives			Liability Derivatives
Gross amounts recognized	$	8,501		$	910
Gross amounts offset in the Statement of Financial Position	(448		)	(448		)
Net amounts presented in the Statement of Financial Position	8,053			462
Gross amounts not offset in the Statement of Financial Position	(8,053		)	—
Net amount	$	—		$	462

NOTE 18—FAIR VALUE MEASUREMENT

The fair value hierarchy prioritizes the inputs used in measuring fair value as follows:

• Level 1—Quoted prices for identical instruments in active markets.

• Level 2—Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations, in which all significant inputs are observable in active markets.

• Level 3—Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

A summary of assets (liabilities) measured at fair value is as follows:

	As of December 31, 2013
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(19	)	$	—	$	(19	)	$	—
Commodity futures	62			—		62			—
Commodity swaps	(416		)	—		(416		)	—
Commodity options	133			—		133			—
	$	(240	)	$	—	$	(240	)	$	—

	As of December 31, 2012
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(46	)	$	—	$	(46	)	$	—
Commodity swaps	(171		)	—		(171		)	—
Commodity options	(245		)	—		(245		)	—
	$	(462	)	$	—	$	(462	)	$	—

The following is a reconciliation of the beginning and ending balances for liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the years ended as follows:

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	Preferred Stock Embedded Derivatives			Seneca Holdco Liability
Ending balance - January 1, 2011	$	(61,761	)	$	(10,406	)
Total unrealized gains (losses)	7,939			(2,097		)
Purchase accounting consolidation	—			600
Ending balance - December 31, 2011	(53,822		)	(11,903		)
Total realized gains	11,975			349
Purchases	—			—
Issuance	—			—
Settlements	41,847			11,554
Ending balance - December 31, 2012	—			—
Total unrealized gains (losses)	—			—
Purchases	—			—
Issuance	—			—
Settlements	—			—
Ending balance - December 31, 2013	$	—		$	—

The Company used the following methods and assumptions to estimate fair value of its financial instruments:

Valuation of Preferred Stock embedded conversion feature derivatives: The estimated fair value of the derivative instruments embedded in the Company’s outstanding preferred stock was determined using the option pricing method to allocate the fair value of the underlying stock to the various components comprising the security, including the embedded derivative. The allocation was performed based on each class of preferred stock’s liquidation preference and relative seniority. Derivative liabilities are adjusted to reflect fair value at each period end. The effects of interactions between embedded derivatives are calculated and accounted for in arriving at the overall fair value of the financial instruments.

Interest rate swap: The fair value of the interest swap was determined based on a discounted cash flow approach using market observable swap curves.

Commodity derivatives: The instruments held by the Company consist primarily of futures contracts, swap agreements, purchased put options and written call options. The fair value of contracts based on quoted prices of identical assets in an active exchange-traded market is reflected in Level 1. Contract fair value is determined based on quoted prices of similar contracts in over-the-counter markets and are reflected in Level 2.

Seneca Holdco liability: The liability represents the combination of the Call Option and the Put Option related to the purchase of membership interest of Seneca Landlord. The fair value of the Seneca Holdco liability was determined using an option pricing model and represents the probability weighted present value of the gain that is realized upon exercise of each option.

Notes payable and lines of credit: The fair value of long-term debt and lines of credit was established using discounted cash flow calculations and current market rates reflecting Level 2 inputs.

The estimated fair values of the Company’s financial instruments, which are not recorded at fair value are as follows as of December 31:

	2013						2012
	Asset (Liability) Carrying Amount			Estimated Fair Value			Asset (Liability) Carrying Amount			Estimated Fair Value
Financial Liabilities:
Notes payable and lines of credit	$	(45,166	)	$	(45,094	)	$	(37,044	)	$	(37,000	)

NOTE 19—NET INCOME PER SHARE

Basic net income per common share is presented in conformity with the two-class method required for participating securities. Participating securities include, or have included, Series A Preferred Stock, Series B Preferred Stock and RSU's.

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Under the two-class method, net income is reduced for distributed and undistributed dividends earned in the current period. The remaining earnings are then allocated to common stock and the participating securities.

The holders of the Series A Preferred Stock accrued dividends at the rate of $0.88 per share per annum. Dividends were cumulative, accrued on a daily basis from the date of issuance and compounded annually from the date of issuance. If dividends on the Series A Preferred Stock had not been paid or declared, the deficiency would have paid or declared before any dividend is declared for Common Stock. Dividends in arrears did not bear interest. Holders of the Series A Preferred Stock were allowed to participate in the dividends to common stockholders in the event that dividends on Common Stock exceed that of the Series A Preferred Stock as if the Series A Preferred Stock had been converted to Common Stock at the beginning of the year. Series A Preferred Stock was converted to common shares at the time of the Company's initial public offering.

The holders of the Series B Preferred Stock accrue dividends at a rate of $1.125 per share per annum. Dividends are cumulative, accrue on a daily basis from the date of issuance and compound annually from the date of issuance. If dividends on the Series B Preferred Stock have not been paid or declared, the deficiency shall be paid or declared before any dividend is declared for Common Stock. Dividends in arrears do not bear interest. Holders of the Series B Preferred Stock are allowed to participate in the dividends to common stockholders in the event that dividends on Common Stock exceed that of the Series B Preferred Stock as if the Series B Preferred Stock had been converted to Common Stock at the beginning of the year.

The Company calculates the effects of participating securities on diluted earnings per share (EPS) using both the “if-converted or treasury stock” and "two-class" methods and discloses the method which results in a more dilutive effect. The effects of Common Stock options, warrants, and stock appreciation rights on diluted EPS are calculated using the treasury stock method unless the effects are anti-dilutive to EPS.

The following potentially dilutive weighted average securities were excluded from the calculation of diluted net income (loss) per share attributable to common stockholders during the periods presented as the effect was anti-dilutive:

	Year Ended December 31,
	2013	2012	2011
Options to purchase common stock	87,026	87,026	87,207
Restricted stock units	—	754,359	1,230,092
Stock appreciation rights	1,030,926	1,196,975	—
Warrants to purchase common stock	—	35,987	355,886
Redeemable preferred shares	—	—	5,382,209
Total	1,117,952	2,074,347	7,055,394

The following table presents the calculation of diluted net income per share for the years ended December 31, 2013 and 2012. For the year ended December 31, 2011, the effect from all convertible securities were anti-dilutive (in thousands, except share and per share data):

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	2013			2012
Net income attributable to the Company's common stockholders - Basic	$	165,254		$	43,482
Less: effects of recapitalization	—			(39,107		)
Plus: change in undistributed dividends allocated to preferred stockholders	—			823
Plus: distributed dividends to Preferred Stockholders	2,055			3,156
Plus: accretion of Series A Preferred Stock to redemption value	—			1,808
Plus: (gain) loss due to change in fair value of Series A Preferred Stock conversion feature embedded derivatives	—			(11,975		)
Plus: effect of participating securities	19,057			12,097
Net income attributable to common stockholders	186,366			10,284
Less: effect of participating securities	(21,108		)	(1,108		)
Net income attributable to the Company's common stockholders - Diluted	$	165,258		$	9,176
Shares:
Weighted-average shares outstanding - Basic	33,045,164			28,381,676
Adjustment to reflect conversion of preferred stock	—			5,958,790
Adjustment to reflect stock appreciation right conversions	7,065			—
Adjustment to reflect warrants to purchase common stock	650			—
Weighted-average shares outstanding - Diluted	33,052,879			34,340,466
Net income per share attributable to common stockholders - Diluted	$	5.00		$	0.27

NOTE 20—REPORTABLE SEGMENTS

The Company reports its reportable segments based on services provided to customers, which includes Biodiesel, Services and Corporate and other activities. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. The Company has chosen to differentiate the reportable segments based on the products and services each segment offers.

The Biodiesel segment processes waste vegetable oils, animal fats, virgin vegetable oils and other feedstocks and methanol into biodiesel. The Biodiesel segment also includes the Company’s purchases and resale of biodiesel produced by third parties. Revenue is derived from the purchases and sales of biodiesel, RINs and raw material feedstocks acquired from third parties, sales of biodiesel produced under toll manufacturing arrangements with third party facilities, sales of processed biodiesel from Company facilities, related by-products and renewable energy government incentive payments. The Services segment offers services for managing the construction of biodiesel production facilities and managing ongoing operations of third party plants and collects fees related to the services provided. The Company does not allocate items that are of a non-operating nature or corporate expenses to the business segments. Intersegment revenues are reported by the Services segment, which manages the construction and operations of facilities included in the Biodiesel segment. Revenues are recorded by the Services segment at cost. Corporate expenses consist of corporate office expenses including compensation, benefits, occupancy and other administrative costs, including management service expenses.

The following table represents the significant items by reportable segment for the results of operations for the years ended December 31, 2013, 2012 and 2011:

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	2013			2012			2011
Net sales:
Biodiesel	$	1,498,011		$	1,014,797		$	823,809
Services	63,980			38,031			13,027
Intersegment revenues	(63,853		)	(37,794		)	(12,805		)
	$	1,498,138		$	1,015,034		$	824,031
Income before income taxes and income from equity investments:
Biodiesel	$	239,462		$	58,349		$	127,187
Services	(29		)	(26		)	24
Corporate and other (a)	(48,132		)	(34,610		)	(35,802		)
	$	191,301		$	23,713		$	91,409
Depreciation and amortization expense, net:
Biodiesel	$	8,199		$	7,111		$	8,833
Services	120			38			4
Corporate and other (a)	923			772			638
	$	9,242		$	7,921		$	9,475
Cash paid for purchases of property, plant and equipment:
Biodiesel	$	36,770		$	11,409		$	3,823
Services	504			396			53
Corporate and other (a)	1,779			849			930
	$	39,053		$	12,654		$	4,806

	2013		2012		2011
Goodwill:
Biodiesel	$	68,784	$	68,784	$	68,784
Services	16,080		16,080		16,080
	$	84,864	$	84,864	$	84,864
Assets:
Biodiesel	$	444,945	$	357,305	$	341,863
Services	20,542		20,033		20,474
Corporate and other (b)	275,368		118,446		122,110
	$	740,855	$	495,784	$	484,447

(a) Corporate and other includes income/(expense) not associated with the reportable segments, such as corporate general and administrative expenses, shared service expenses, interest expense and interest income, all reflected on an accrual basis of accounting.

(b) Corporate and other includes cash and other assets not associated with the reportable segments, including investments.

NOTE 21—COMMITMENTS AND CONTINGENCIES

The Company is involved in legal proceedings in the normal course of business. The Company currently believes that any ultimate liability arising out of such proceedings will not have a material adverse effect on the Company’s financial position, results of operations or cash flows.

NOTE 22—SUPPLEMENTAL QUARTERLY INFORMATION (UNAUDITED)

The following table represents the significant items for the results of operations on a quarterly basis for the years ended December 31, 2013 and 2012:

91

	Three Months Ended March 31, 2013			Three Months Ended June 30, 2013			Three Months Ended September 30, 2013			Three Months Ended December 31, 2013
Revenues	$	264,368		$	384,735		$	458,444		$	390,591
Gross profit	86,695			50,181			57,849			44,708
Selling, general, and administrative expenses	9,644			11,226			12,686			12,567
Income from operations	77,051			38,955			45,163			32,141
Other income (expense), net	(459		)	(511		)	(511		)	(528		)
Net income	46,403			23,130			86,703			30,130
Net income per share attributable to common stockholders - basic	1.25			0.63			2.32			0.81
Net income per share attributable to common stockholders - diluted	1.25			0.62			2.31			0.80

	Three Months Ended March 31, 2012		Three Months Ended June 30, 2012			Three Months Ended September 30, 2012			Three Months Ended December 31, 2012
Revenues	$	188,247	$	271,927		$	322,912		$	231,948
Gross profit	17,034		30,949			2,791			7,549
Selling, general, and administrative expenses	12,962		11,014			9,902			8,544
Income (loss) from operations	4,072		19,935			(7,111		)	(995		)
Other income (expense), net	11,308		(1,031		)	(1,094		)	(1,371		)
Net income (loss)	14,017		14,433			(6,040		)	(151		)
Net income (loss) per share attributable to common stockholders - basic	1.60		0.39			(0.24		)	(0.03		)
Net income (loss) per share attributable to common stockholders - diluted	0.06		0.39			(0.24		)	(0.03		)

NOTE 23—SUBSEQUENT EVENTS

On December 17, 2013, the Company and REG Synthetic Fuels, LLC, a wholly-owned subsidiary of the Company, entered into an Asset Purchase Agreement with Syntroleum Corporation (Syntroleum) to acquire substantially all assets, including all of Syntroleum's intellectual property and its 50% equity interest in Dynamic Fuels, LLC. As consideration for the asset sale, REG Synthetic Fuels will assume substantially all material assets and liabilities of Syntroleum and Syntroleum will receive 3,796,000 shares of the Company's common stock, subject to downward adjustment (based on the value of the Company's Common Stock at closing, as calculated under the Asset Purchase Agreement) to the extent that Syntroleum’s cash on hand at closing is less than $3,200; provided, that, if the per share value of the Company’s Common Stock at closing (as calculated under the Asset Purchase Agreement) is equal to or greater than $12.91, then the number of shares of the Company's common stock will be equal to (i) $49,000, divided by (ii) the Company's Common Stock value at closing (as calculated under the Asset Purchase Agreement). The closing of the transaction is conditioned upon Syntroleum’s receipt of the approval of the holders of a majority of Syntroleum’s outstanding shares of common stock and other specified closing conditions. Accordingly, this transaction is not reflected in the Company's financial statements as of December 31, 2013.

On January 22, 2014, REG Life Sciences, LLC, a wholly-owned subsidiary of the Company, acquired substantially all of the assets and certain liabilities of LS9, Inc. (LS9) as part of its strategy to expand into the production of renewable chemicals, additional advanced biofuels and other products. LS9 is a research and development stage company focused on harnessing the power of microbial fermentation to develop and produce renewable chemicals, fuels and other products. The assets acquired consist mainly of in-process research and development, intellectual property and fixed assets. The Company has not completed its initial accounting for this business combination as the valuation of the assets acquired and contingent consideration has not been finalized.

As consideration for the asset sale, LS9 received (i) $15,275 in cash and (ii) 2,230,559 shares of the Company’s Common Stock (LS9 Stock Consideration) and may receive over a six-year period earnout payments, if any, with a value of up to a maximum amount of $21,500 (LS9 Earnout Payments), subject to achievement of certain milestones related to the development

92

and commercialization of products from LS9’s technology. Of the LS9 Stock Consideration, 541,288 shares will be held in escrow for 18 months and applied towards the indemnification obligations of LS9 and certain of its securityholders.

The Earnout Payments will be payable, at REG Life Sciences’ election, as follows: (i) by the delivery to LS9 of shares of the Company’s Common Stock equal to the amount of the applicable Earnout Payment divided by the average closing sales price of the Company’s Common Stock as reported on the NASDAQ Global Select Market for the 30-trading day period ending on the third trading day preceding the date of the applicable Earnout Payment, (ii) by delivery to LS9 by wire transfer of immediately available funds of an amount in dollars equal to the applicable Earnout Payment, or (iii) by delivery to LS9 of any combination of shares of the Company’s Common Stock and amounts in dollars.

On February 24, 2014, the Company’s Board of Directors authorized the Company, at management's discretion, to redeem all outstanding shares of Series B Preferred Stock. The Company plans to execute the cash redemption prior to the end of first quarter 2014.

* * * * * *

93

ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

ITEM 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our management, under the supervision of and with the participation of the Chief Executive Officer and Chief Financial Officer performed an evaluation of the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”)) as of the end of the period covered by this report, December 31, 2013. In connection with our evaluation of disclosure controls and procedures, we have concluded that our disclosure controls and procedures are effective as of December 31, 2013.

Management’s Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act).

Management conducted an evaluation of the effectiveness of our internal control over financial reporting based on the framework in Internal Control-Integrated Framework (1992) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 31, 2013.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods are subject to the risks that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Deloitte & Touche LLP has audited our internal control over financial reporting as of December 31, 2013 and has issued an attestation report regarding its assessment included herein.

Changes in Internal Control over Financial Reporting

There have been no changes during our quarter ended December 31, 2013 in our internal control over financial reporting (as defined in Rules 13a-15(f) under the Exchange Act) that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

ITEM 9B. Other Information

None.

94

PART III

ITEM 10. Directors, Executive Officers and Corporate Governance

This Item is incorporated by reference to our definitive proxy statement on Schedule 14A, which will be filed within 120 days after the close of the fiscal year covered by this report on Form 10-K, or if our proxy statement is not filed by that date, will be included in an amendment to this Report on Form 10-K.

ITEM 11. Executive Compensation

This Item is incorporated by reference to our definitive proxy statement on Schedule 14A, which will be filed within 120 days after the close of the fiscal year covered by this report on Form 10-K, or if our proxy statement is not filed by that date, will be included in an amendment to this Report on Form 10-K.

ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

This Item is incorporated by reference to our definitive proxy statement on Schedule 14A, which will be filed within 120 days after the close of the fiscal year covered by this report on Form 10-K, or if our proxy statement is not filed by that date, will be included in an amendment to this Report on Form 10-K.

ITEM 13. Certain Relationships and Related Transactions, and Director Independence

This Item is incorporated by reference to our definitive proxy statement on Schedule 14A, which will be filed within 120 days after the close of the fiscal year covered by this report on Form 10-K, or if our proxy statement is not filed by that date, will be included in an amendment to this Report on Form 10-K.

ITEM 14. Principal Accounting Fees and Services

This Item is incorporated by reference to our definitive proxy statement on Schedule 14A, which will be filed within 120 days after the close of the fiscal year covered by this report on Form 10-K, or if our proxy statement is not filed by that date, will be included in an amendment to this Report on Form 10-K.

95

PART IV

ITEM 15. Exhibits, Financial Statement Schedules

(a) Financial Statements

(i) Consolidated Balance Sheets as of December 31, 2013 and 2012

(ii) Consolidated Statements of Operations for the years ended December 31, 2013, 2012 and 2011

(iii) Consolidated Statements of Redeemable Preferred Stock and Equity (Deficit) for the years ended December 31, 2013, 2012 and 2011

(iv) Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012 and 2011

(v) Notes to the Consolidated Financial Statements for the three years ended December 31, 2013, 2012 and 2011.

(b) Exhibits

The Exhibits filed as part of this Annual Report on Form 10-K, or incorporated by reference, are listed on the Exhibit Index immediately preceding such Exhibits, which Exhibit Index is incorporated herein by reference.

96

(c) Financial Statement Schedules

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

FINANCIAL INFORMATION OF PARENT COMPANY

CONDENSED BALANCE SHEETS

AS OF DECEMBER 31, 2013 AND 2012

(IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

	2013			2012
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	1,581		$	11,287
Notes receivable	—			8,618
Deferred income taxes	7,018			—
Prepaid expenses and other assets	2,668			5,518
Total current assets	11,267			25,423
Property, plant and equipment, net	3,823			2,193
Intangible assets, net	4,749			4,476
Investment in subsidiaries	614,330			403,549
Intercompany receivables	1,177			721
Long term note receivables	—			14,093
Other assets	122			11
TOTAL ASSETS	$	635,468		$	450,466
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	2,083		$	3,799
Accrued expenses	2,728			1,392
Deferred income taxes	—			529
Total current liabilities	4,811			5,720
Deferred income taxes	32,624			36,939
Total liabilities	37,435			42,659
COMMITMENTS AND CONTINGENCIES
SERIES B PREFERRED STOCK ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, respectively; redemption amount $3,583 and $74,878, respectively)	3,963			83,043
EQUITY:
Company stockholders' equity:
Common stock ($.0001 par value; 300,000,000 shares authorized; 36,506,221 and 30,559,935 shares outstanding, respectively)	4			3
Common stock - additional paid-in-capital	359,671			273,989
Warrants - additional paid-in-capital	147			147
Retained earnings	238,134			53,823
Treasury stock (530,898 and 462,985 shares outstanding, respectively)	(3,886		)	(3,198		)
Total stockholders' equity	594,070			324,764
TOTAL LIABILITIES AND EQUITY	$	635,468		$	450,466

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements elsewhere herein.

97

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

FINANCIAL INFORMATION OF PARENT COMPANY

CONDENSED STATEMENTS OF OPERATIONS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS)

	2013			2012			2011
Equity in earnings of subsidiaries of continuing operations	$	178,100		$	20,071		$	98,432
Income from services provided to subsidiaries	4,760			5,138			500
Total income	182,860			25,209			98,932
General and administrative expenses	(17,404		)	(25,473		)	(13,019		)
Change in fair value of preferred stock conversion feature embedded derivatives	—			11,975			7,939
Change in fair value of Seneca Holdco liability	—			349			(2,097		)
Other income	39			109			35
Interest expense	(2		)	(199		)	(14		)
Interest income	1,504			414			134
Income before income taxes and income (loss) from equity investments	166,997			12,384			91,910
Income tax benefit (expense)	19,369			9,804			(2,982		)
Income (loss) from equity investments	—			71			(59		)
Net income	186,366			22,259			88,869
Effects of recapitalization	—			39,107			—
Less - accretion of Series A preferred stock to redemption value	—			(1,808		)	(25,343		)
Less - changes in undistributed dividends allocated to preferred stockholders	—			(823		)	(12,723		)
Less - distributed dividends to preferred stockholders	(2,055		)	(3,156		)	—
Less - effects of participating preferred stock	(16,272		)	(8,952		)	(4,186		)
Less - effect of participating share-based awards	(2,785		)	(3,145		)	(3,864		)
Net income attributable to the company's common stockholders	$	165,254		$	43,482		$	42,753

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements elsewhere herein.

98

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

FINANCIAL INFORMATION OF PARENT COMPANY

CONDENSED STATEMENTS OF CASH FLOWS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS)

	2013			2012			2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	186,366		$	22,259		$	88,869
Adjustments to reconcile net income to net cash flows from operating activities:
Equity in earnings of continuing operations	(178,100		)	(20,071		)	(98,432		)
Depreciation expense	255			157			410
Amortization expense	314			240			189
Provision for doubtful accounts	—			12			—
Stock compensation expense	5,416			13,119			5,934
(Income) loss from equity method investees	—			(71		)	59
Deferred tax benefit	(12,239		)	(7,794		)	(4,967		)
Change in fair value of preferred stock conversion feature embedded derivatives	—			(11,975		)	(7,939		)
Change in fair value of Seneca Holdco liability	—			(249		)	2,097
Expense settled with stock issuance	—			1,898			—
Dividends received from subsidiary	162,969			—			6,802
Premium paid for Seneca Landlord investment	—			(7,063		)	—
Changes in asset and liabilities, net of effects from mergers and acquisitions:
Accounts receivable	(514		)	675			(564		)
Prepaid expenses and other assets	2,849			(4,978		)	(204		)
Accounts payable	(1,246		)	2,254			674
Accrued expenses	770			(973		)	1,818
Net cash flows provided from (used in) operating activities	166,840			(12,560		)	(5,254		)
CASH FLOWS FROM INVESTING ACTIVITIES:
Change in investments in subsidiaries	(153,343		)	(352		)	(158		)
Cash paid for purchase of property, plant and equipment	(2,444		)	(666		)	(679		)
Cash paid for acquisitions	(10,933		)	(1,647		)	—
Net cash flows used in investing activities	(166,720		)	(2,665		)	(837		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash paid on note receivable to subsidiaries	(35,982		)	(22,711		)	(1,482		)
Cash received on note receivable from subsidiaries	27,754			—			4,671
Cash paid on note payable from subsidiaries	—			(3,846		)	—
Cash received on note payable from subsidiaries	—			1,250			2,596
Repayment of investment in Seneca Landlord	—			(4,000		)	—
Cash received upon exercise of warrants	—			—			48
Cash received from initial public offering	—			63,747			—
Cash paid for issuance cost of common and preferred stock	(25		)	(1,699		)	(1,199		)
Cash paid for treasury stock	(282		)	(3,074		)	—
Cash paid for preferred stock dividends	(1,291		)	(3,155		)	—
Net cash flows provided from (used in) financing activities	(9,826		)	26,512			4,634
NET CHANGE IN CASH AND CASH EQUIVALENTS	(9,706		)	11,287			(1,457		)
CASH AND CASH EQUIVALENTS, Beginning of period	11,287			—			1,457
CASH AND CASH EQUIVALENTS, End of period	$	1,581		$	11,287		$	—

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements elsewhere herein.

99

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

NOTES TO THE CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY

For The Three Years Ended December 31, 2013, 2012 and 2011

NOTE 1—BASIS OF PRESENTATION

The accompanying condensed financial statements (the Parent Company Financial Statements) of Renewable Energy Group, Inc., including the notes thereto, should be read in conjunction with the consolidated financial statements of Renewable Energy Group, Inc. and subsidiaries (the Company) and the notes thereto. The condensed financial statements and notes thereto are presented in accordance with the rules and regulations of the Securities and Exchange Commission (the SEC) and do not contain certain information included in the Company’s Annual Report to Shareholders for the fiscal year ended December 31, 2013.

The condensed financial information of Renewable Energy Group, Inc. includes only the financial information for the Registrant, Renewable Energy Group, Inc., excluding all of its consolidated subsidiaries. The accompanying financial statement information reflects the financial position, results of operations and cash flows of the Registrant on a separate, parent company basis. All subsidiaries of Renewable Energy Group, Inc. are reflected as investments accounted for using the equity method. In accordance with Rule 12-04 of Regulation S-X, these parent-only financial statements do not include all of the information and footnotes required by Generally Accepted Accounting Principles (GAAP) in the United States (U.S.) for annual financial statements. Because these parent-only financial statements and notes do not include all of the information and footnotes required by GAAP in the U.S. for annual financial statements, these parent-only financial statements and other information included should be read in conjunction with Renewable Energy Group, Inc.’s audited Consolidated Financial Statements for the year ended December 31, 2013. The schedule is required based upon the limitations on dividends and distributions that its subsidiaries can make to the Registrant under the terms of their debt agreements as described in the Note 12 — Borrowings to the consolidated financial statements.

The preparation of the Parent Company Financial Statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts and disclosures in the condensed financial statements and accompanying notes. Actual results could differ materially from those estimates.

NOTE 2—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements for additional accounting policies.

NOTE 3—INCOME TAXES

The Parent Company Financial Statements recognizes deferred tax assets and liabilities for the differences between the financial reporting and tax basis assets and liabilities at the financial statement date using enacted tax rates expected to be in effect in the year the differences are expected to reverse. The Parent Company Financial Statements are included in the Company’s consolidated income tax return. However, the Parent Company Financial Statement’s income tax assets and liabilities are computed on a stand-alone basis.

100

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

RENEWABLE ENERGY GROUP, INC.
By:	/s/    Daniel J. Oh
	Daniel J. Oh
	President and Chief Executive Officer

Date: February 28, 2014

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Chad Stone and Chad A. Baker, and each of them, his true and lawful attorneys-in-fact, each with full power of substitution, for him in any and all capacities, to sign any amendments to this report on Form 10-K and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact or their substitute or substitutes may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

		Date
/s/    Daniel J. Oh	President, Chief Executive Officer and Director (Principal Executive Officer)	February 28, 2014
Daniel J. Oh
/s/    Chad Stone	Chief Financial Officer (Principal Financial Officer)	February 28, 2014
Chad Stone
/s/    Chad A. Baker	Controller (Principal Accounting Officer)	February 28, 2014
Chad A. Baker
/s/    Jeffrey Stroburg	Director (Chairman)	February 28, 2014
Jeffrey Stroburg
/s/    Delbert Christensen	Director	February 28, 2014
Delbert Christensen
/s/    Randolph L. Howard	Director	February 28, 2014
Randolph L. Howard
/s/    Michael A. Jackson	Director	February 28, 2014
Michael A. Jackson
/s/    Michael Scharf	Director	February 28, 2014
Michael Scharf
/s/    Christopher Sorrells	Director	February 28, 2014
Christopher Sorrells

101

EXHIBIT INDEX

Exhibit Number	Description
3.1	Third Amended and Restated Certificate of Incorporation of Renewable Energy Group, Inc. (the “Company”), effective as of January 24, 2012 (incorporated by reference to Exhibit 3.1 to the Company’s Registration Statement on Form S-1/A filed September 8, 2011)
3.2	Amended and Restated Bylaws of the Company (incorporated by reference to Exhibit 3.2 to the Company’s Registration Statement on Form S-1/A filed November 18, 2011)
4.1	Form of Common Stock Certificate of the Company (incorporated by reference to Exhibit 4.1 to the Company’s Registration Statement on Form S-1/A filed November 18, 2011)
10.1	Master Loan Agreement, dated as of March 8, 2010, by and between AgStar Financial Services, PCA and REG Newton, LLC (incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-1/A filed September 8, 2011)
10.2	First Supplement to the Master Loan Agreement, dated as of March 8, 2010, by and between AgStar Financial Services, PCA and REG Newton, LLC (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the three months ended March 31, 2010)
10.3	Second Supplement to the Master Loan Agreement, dated as of March 8, 2010, between AgStar Financial Services, PCA and REG Newton, LLC (incorporated by reference to Exhibit 10.3 to the Company’s Registration Statement on Form S-1/A filed September 8, 2011)
10.4	REG Newton, LLC Revolving Line of Credit Note, dated March 8, 2010 (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the three months ended March 31, 2010)
10.5	REG Newton, LLC Term Note, dated March 8, 2010 (incorporated by reference to Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q for the three months ended March 31, 2010)
10.6	First Amendment to Second Supplement to the Master Loan Agreement, dated as of March 8, 2010, between AgStar Financial Services, PCA and REG Newton, LLC (incorporated by reference to Exhibit 10.6 to the Company’s Registration Statement on Form S-1/A filed September 8, 2011)
10.7	First Allonge to Revolving Line of Credit Note, dated March 8, 2010 (incorporated by reference to Exhibit 10.7 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2010)
10.8	Stockholder Agreement, dated February 26, 2010, by and among REG Newco, Inc., certain holders of REG Newco, Inc. common stock and certain holders of REG Newco, Inc. Series A Preferred Stock (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed March 4, 2010)
10.9	First Amendment to the Stockholder Agreement of REG Newco, Inc. dated June 29, 2010 (incorporated by reference to Exhibit 10.15 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2010)
10.10	Registration Rights Agreement, dated February 26, 2010, by and among REG Newco, Inc., certain holders of REG Newco, Inc. common stock and certain holders of REG Newco, Inc. Series A Preferred Stock (incorporated by reference to Exhibit 10.16 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2010)
10.11	Ground Lease by and between West Central Cooperative and the Company dated July 31, 2006 (incorporated by reference to Exhibit 10.9 to the Company’s Registration Statement on Form S-4/A filed October 5, 2009)
10.12	2009 Stock Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the three months ended June 30, 2010)
10.13	Agreement for Purchase and Sale of Assets and Common Stock by and among ARES Corporation, Clovis Biodiesel, LLC, REG Clovis, LLC and the Company dated August 24, 2010 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the three months ended September 30, 2010)
10.14	Investment Agreement, dated as of July 15, 2011, by and among the Company and certain holders of the Company’s Series A Preferred Stock (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed July 21, 2011)
10.15	Second Amendment to Stockholders Agreement, dated as of July 15, 2011, by and among the Company and certain stockholders of the Company (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed July 21, 2011)

102

Exhibit Number	Description
10.16	Consent and Amendment to Registration Rights Agreement, dated as of July 15, 2011, by and among the Company and certain stockholders of the Company (incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed July 21, 2011)
10.17	Limited Waiver Agreement, dated as of May 13, 2011, by and between Fifth Third Bank and REG Danville, LLC (incorporated by reference to Exhibit 10.36 to the Company’s Registration Statement on Form S-1/A filed October 26, 2011)
10.18	Employment Agreement, dated as of September 28, 2011, by and between the Company and Daniel J. Oh (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed September 28, 2011)
10.19	Termination Agreement and Mutual Release, dated as of July 15, 2011, by and among USRG Holdco IX, LLC, the Company, and REG Services, LLC (incorporated by reference to Exhibit 10.41 to the Company’s Registration Statement on Form S-1/A filed September 8, 2011)
10.20	Amended and Restated Loan Agreement dated November 3, 2011 by and between REG Danville, LLC and Fifth Third Bank (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed November 9, 2011)
10.21	Asset Purchase Agreement, by and among, Soymor Cooperative, Soymor Biodiesel, LLC, REG Albert Lea, LLC, and the Company, dated June 8, 2011 (incorporated by reference to Exhibit 10.48 to the Company’s Registration Statement on Form S-1/A filed November 28, 2011)
10.22	Credit Agreement dated as of December 23, 2011 by and among the lenders identified on the signature pages thereto, Wells Fargo Capital Finance, LLC, REG Services Group, LLC and REG Marketing & Logistics Group, LLC (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed December 29, 2011)
10.23	General Continuing Guaranty dated as of December 23, 2011 in favor of Wells Fargo Capital Finance, LLC, as agent (incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed December 29, 2011)
21.1	List of Subsidiaries
23.1	Consent of Deloitte & Touche LLP, Independent Registered Public Accounting Firm
24.1	Power of Attorney (included in the signature page to this report)
31.1	Certification of Daniel J. Oh pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chad Stone pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – Chief Executive Officer.
32.2	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 – Financial Officer.
101.1	The following financial information of the Company and its subsidiaries for the fiscal year ended December 31, 2013, is formatted in XBRL interactive data files: (i) Consolidated Balance Sheets, (ii) Consolidated Statements of Operations; (iii) Consolidated Statements of Redeemable Preferred Stock and Equity; (iii) Consolidated Statements of Cash Flows; and (v) Notes to Consolidated Financial Statements. As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Section 18 of the Securities Exchange Act of 1934 and is not otherwise subject to liability under those sections.
101.2	The following financial information of Parent Company for the fiscal year ended December 31, 2013, is formatted in XBRL interactive data files: (i) Condensed Balance Sheets, (ii) Condensed Statements of Operations; (iii) Condensed Statements of Redeemable Preferred Stock and Equity; and (iii) Condensed Statements of Cash Flows. As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Section 18 of the Securities Exchange Act of 1934 and is not otherwise subject to liability under those sections.

103

EX-21.1

Exhibit 21.1

RENEWABLE ENERGY GROUP, INC. SUBSIDIARIES
REG Biofuels, LLC	Iowa
REG Marketing & Logistics Group, LLC	Iowa
REG Services Group, LLC	Iowa
REG Energy Services, LLC	Iowa
REG Capital, LLC	Iowa
REG Synthetic Fuels, LLC	Iowa
REG Life Sciences, LLC	Iowa
REG Canada Holdings Inc.	British Columbia
REG Construction & Technology Group, LLC	Iowa
REG Ventures, LLC	Iowa
REG Venture Services, LLC	Iowa
REG Real Estate Holdings, LLC	Iowa
REG Ralston, LLC	Iowa
REG Houston, LLC	Texas
REG Danville, LLC	Delaware
REG Albert Lea, LLC	Iowa
REG Newton, LLC	Iowa
REG Seneca, LLC	Iowa
REG New Orleans, LLC	Iowa
REG New Boston, LLC	Iowa
REG Mason City, LLC	Iowa
REG Emporia, LLC	Iowa
REG Clovis, LLC	Iowa
REG Atlanta, LLC	Iowa
REG Okeechobee, LLC	Iowa
REG Processing Systems, LLC	Iowa
416 S. Bell, LLC 50% owned	Iowa

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-161187 on Form S-8 and Registration Statement No. 333-186822 on Form S-3 of our report dated February 28, 2014 relating to the consolidated financial statements and financial statement schedule of Renewable Energy Group, Inc. and subsidiaries, and the effectiveness of Renewable Energy Group, Inc. and subsidiaries’ internal control over financial reporting, appearing in this Annual Report on Form 10-K of Renewable Energy Group, Inc. for the year ended December 31, 2013.

/s/ Deloitte & Touche LLP

Des Moines, Iowa

February 28, 2014

EX-31.1

Exhibit 31.1

I, Daniel J. Oh, certify that:

1. I have reviewed this annual report on Form 10-K of Renewable Energy Group, Inc.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: February 28, 2014

/s/ Daniel J. Oh

Daniel J. Oh

Chief Executive Officer

EX-31.2

Exhibit 31.2

I, Chad Stone, certify that:

1. I have reviewed this annual report on Form 10-K of Renewable Energy Group, Inc.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Dated: February 28, 2014

/s/ Chad Stone

Chad Stone

Chief Financial Officer

EX-32.1

Exhibit 32.1

SECTION 1350 CERTIFICATIONS

I, Daniel J. Oh, Chief Executive Officer of Renewable Energy Group, Inc. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge the Annual Report on Form 10-K of the Company (the “Report”), which accompanies this Certificate, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and all information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: February 28, 2014

/s/ Daniel J. Oh

Daniel J. Oh

Chief Executive Officer

EX-32.2

Exhibit 32.2

SECTION 1350 CERTIFICATIONS

I, Chad Stone, Chief Financial Officer of Renewable Energy Group, Inc. (the “Company”), certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge the Annual Report on Form 10-K of the Company (the “Report”), which accompanies this Certificate, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and all information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: February 28, 2014

/s/ Chad Stone

Chad Stone

Chief Financial Officer

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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Company owned property, plant and equipment consists of the following at December 31:

	2013			2012
Land	$	2,442		$	987
Building and improvements	72,453			50,688
Leasehold improvements	6,887			6,879
Machinery and equipment	166,552			127,167
	248,334			185,721
Accumulated depreciation	(37,362		)	(28,097		)
	210,972			157,624
Construction in process	75,072			85,261
Total	$	286,044		$	242,885

Property, plant and equipment of consolidated VIE’s consists of the following at December 31:

	2013			2012
Land	$	404		$	404
Building and improvements	6,290			6,290
	6,694			6,694
Accumulated depreciation	(1,514		)	(1,289		)
Total	$	5,180		$	5,405

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Reportable Segments - (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment for the results of operations
Net sales:	$ 1,498,138		$ 1,015,034		$ 824,031
Income before income taxes and income from equity investments:	191,301		23,713		91,409
Depreciation and amortization expense, net:	9,242		7,921		9,475
Cash paid for purchases of property, plant and equipment:	39,053		12,654		4,806
Goodwill:	84,864		84,864		84,864
Assets:	740,855		495,784		484,447
Biodiesel
Segment for the results of operations
Goodwill:	68,784		68,784		68,784
Services
Segment for the results of operations
Goodwill:	16,080		16,080		16,080
Operating Segments | Biodiesel
Segment for the results of operations
Net sales:	1,498,011		1,014,797		823,809
Income before income taxes and income from equity investments:	239,462		58,349		127,187
Depreciation and amortization expense, net:	8,199		7,111		8,833
Cash paid for purchases of property, plant and equipment:	36,770		11,409		3,823
Goodwill:	68,784		68,784		68,784
Assets:	444,945		357,305		341,863
Operating Segments | Services
Segment for the results of operations
Net sales:	63,980		38,031		13,027
Income before income taxes and income from equity investments:	(29)		(26)		24
Depreciation and amortization expense, net:	120		38		4
Cash paid for purchases of property, plant and equipment:	504		396		53
Goodwill:	16,080		16,080		16,080
Assets:	20,542		20,033		20,474
Intersegment revenues
Segment for the results of operations
Net sales:	(63,853)		(37,794)		(12,805)
Corporate and other
Segment for the results of operations
Income before income taxes and income from equity investments:	(48,132)	[1]	(34,610)	[1]	(35,802)	[1]
Depreciation and amortization expense, net:	923	[1]	772	[1]	638	[1]
Cash paid for purchases of property, plant and equipment:	1,779	[1]	849	[1]	930	[1]
Assets:	$ 275,368	[2]	$ 118,446	[2]	$ 122,110	[2]

[1] Corporate and other includes income/(expense) not associated with the reportable segments, such as corporate general and administrative expenses, shared service expenses, interest expense and interest income, all reflected on an accrual basis of accounting.

[2] Corporate and other includes cash and other assets not associated with the reportable segments, including investments.

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Summary of Significant Accounting Policies - Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Activity regarding the allowance for doubtful accounts
Beginning Balance	$ 1,972	$ 1,435	$ 316
Amount charged to selling, general and administrative expenses	309	563	1,389
Charge-offs, net of recovery	(157)	(26)	(270)
Ending Balance	$ 2,124	$ 1,972	$ 1,435

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Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of derivative financial instruments by balance sheet location

The following tables provide details regarding the Company’s derivative financial instruments:

	As of December 31, 2013
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swap		$	—	Other liabilities	$	19
Commodity futures	Prepaid expenses and other assets	62		Prepaid expenses and other assets	—
Commodity swaps	Prepaid expenses and other assets	75		Prepaid expenses and other assets	491
Commodity options	Prepaid expenses and other assets	188		Prepaid expenses and other assets	55
Total derivatives		$	325		$	565

	As of December 31, 2012
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swap		$	—	Other liabilities	$	46
Commodity swaps	Prepaid expenses and other assets	305		Prepaid expenses and other assets	476
Commodity options	Prepaid expenses and other assets	143		Prepaid expenses and other assets	388
Total derivatives		$	448		$	910

Summary of derivative financial instruments by location of gain (loss)

		2013			2012			2011
	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income on Derivatives			Amount of Gain (Loss) Recognized in Income on Derivatives			Amount of Gain (Loss) Recognized in Income on Derivatives
Embedded derivative	Change in fair value of preferred stock conversion feature embedded derivatives	$	—		$	11,975		$	7,939
Interest rate swap	Other income (loss)	26			(5		)	571
Commodity futures	Cost of goods sold - Biodiesel	258			(4		)	(97		)
Commodity swaps	Cost of goods sold - Biodiesel	(5,775		)	(4,254		)	2,557
Commodity options	Cost of goods sold - Biodiesel	(139		)	(364		)	567
Total		$	(5,630	)	$	7,348		$	11,537

Summary of derivative financial instruments by enforceable master netting arrangement

The tables below represent the amounts subject to an enforceable master netting arrangement not otherwise disclosed:

	2013
	Asset Derivatives			Liability Derivatives
Gross amounts recognized	$	14,221		$	565
Gross amounts offset in the Statement of Financial Position	(325		)	(325		)
Net amounts presented in the Statement of Financial Position	13,896			240
Gross amounts not offset in the Statement of Financial Position	(13,896		)	—
Net amount	$	—		$	240

	2012
	Asset Derivatives			Liability Derivatives
Gross amounts recognized	$	8,501		$	910
Gross amounts offset in the Statement of Financial Position	(448		)	(448		)
Net amounts presented in the Statement of Financial Position	8,053			462
Gross amounts not offset in the Statement of Financial Position	(8,053		)	—
Net amount	$	—		$	462

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Acquisitions and Equity Transactions - (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended				0 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2013 gal	Dec. 31, 2012	Dec. 31, 2011	Jul. 12, 2011	Jul. 12, 2011 SoyMor Biodiesel, LLC gal	Dec. 31, 2013 SoyMor Biodiesel, LLC	Jan. 24, 2012 Seneca Landlord, LLC	Dec. 31, 2013 Seneca Landlord, LLC	Oct. 26, 2012 North Texas Bio Energy, LLC gal	Dec. 31, 2013 North Texas Bio Energy, LLC	Nov. 16, 2012 BullDog Biodiesel, LLC gal	Dec. 31, 2013 BullDog Biodiesel, LLC	Jul. 30, 2013 Soy Energy, LLC gal	Dec. 31, 2013 Soy Energy, LLC
Acquisitions and Equity Transactions (Textual) [Abstract]
Original execution date						Jun. 08, 2011		Jan. 24, 2012		Oct. 26, 2012		Nov. 16, 2012		Jul. 30, 2013
Cost of acquired entity purchase price previously paid							$ 937
Class A Common Stock							60,000		900,000
Production capacity per year	257,000,000				30,000,000				15,000,000		15,000,000		30,000,000
Common stock, shares issued				673,544
Gain from the equity investment					661
Cash	10,933	1,791	0				11,063		324		1,323		10,933
Cash							12,000
Issuance of note payable for acquisition	5,135												5,135
In-kind consideration											$ 1,336

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Summary of Significant Accounting Policies - Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2013
Automobiles and trucks
Estimated useful lives
Estimated useful lives	5 years
Computers and office equipment
Estimated useful lives
Estimated useful lives	5 years
Office furniture and fixtures
Estimated useful lives
Estimated useful lives	7 years
Machinery and equipment | Minimum
Estimated useful lives
Estimated useful lives	5 years
Machinery and equipment | Maximum
Estimated useful lives
Estimated useful lives	30 years
Leasehold improvements
Estimated useful lives
Estimated useful lives	30 years
Buildings and improvements | Minimum
Estimated useful lives
Estimated useful lives	30 years
Buildings and improvements | Maximum
Estimated useful lives
Estimated useful lives	40 years

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Other Assets - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of prepaid expense and other current assets
Commodity derivatives and related collateral, net	$ 13,675	$ 7,637
Prepaid insurance	1,804	1,109
Prepaid service contracts	610	552
Prepaid storage	0	515
Deposits	293	857
RIN inventory	6,455	99
Income taxes receivable	2,197	4,735
Other	534	308
Total	$ 25,568	$ 15,812

XML

Derivative Instruments - Balance Sheet Location (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Derivative fair value net
Derivative asset, Fair Value	$ 325,000	$ 448,000
Derivative liability, Fair value	565,000	910,000
Interest rate swap
Derivative fair value net
Derivative asset, Fair Value	0	0
Interest rate swap | Other liabilities
Derivative fair value net
Derivative liability, Fair value	19,000	46,000
Commodity futures | Prepaid expenses and other assets
Derivative fair value net
Derivative asset, Fair Value	62,000
Derivative liability, Fair value	0
Commodity swaps | Prepaid expenses and other assets
Derivative fair value net
Derivative asset, Fair Value	75,000	305,000
Derivative liability, Fair value	491,000	476,000
Commodity options | Prepaid expenses and other assets
Derivative fair value net
Derivative asset, Fair Value	188,000	143,000
Derivative liability, Fair value	$ 55,000	$ 388,000

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Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2013

Related Party Transactions [Abstract]

Summary of Related Party Transactions

The Company will report related party transactions before and after the IPO based on the related party characteristics mentioned above.

Summary of Related Party Transactions - Consolidated Statements of Operations
		2013		2012		2011
	Revenues - Biodiesel sales (a)	$	—	$	6	$	5,161
	Cost of goods sold - Biodiesel (b)	$	49,358	$	54,364	$	263,562
	Selling, general and administrative expenses (c)	$	37	$	158	$	1,505
	Interest expense (d)	$	30	$	32	$	761
(a)	Represents transactions with related parties as follows:
	West Central	$	—	$	6	$	11
	Bunge	—		—		2,124
	ED & F Man	—		—		3,026
		$	—	$	6	$	5,161
(b)	Represents transactions with related parties as follows:
	West Central	$	49,358	$	50,415	$	48,510
	Bunge	—		3,949		203,092
	ED & F Man	—		—		11,960
		$	49,358	$	54,364	$	263,562
(c)	Represents transactions with related parties as follows:
	West Central	$	37	$	45	$	102
	Bunge	—		113		1,403
		$	37	$	158	$	1,505
(d)	Represents transactions with related parties as follows:
	West Central	$	30	$	23	$	96
	Bunge	—		9		308
	USRG	—		—		357
		$	30	$	32	$	761

Summary of Related Party Balances

Summary of Related Party Balances - Consolidated Balance Sheets
		2013		2012
	Accounts receivable (a)	$	426	$	771
	Other assets (a)	$	35	$	692
	Accounts payable (a)	$	552	$	2,950
(a)	Represents balances with West Central

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Basis of Consolidation

Basis of Consolidation

The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries, and entities which it controls. All significant intercompany balances and transactions have been eliminated for consolidated reporting purposes.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents consists of money market funds and demand deposits with financial institutions. The Company considers all highly liquid debt instruments purchased with an original maturity of three months or less to be cash equivalents.

Accounts Receivable

Accounts Receivable

Accounts receivable are carried at invoiced amount less allowance for doubtful accounts. Management estimates the allowance for doubtful accounts based on existing economic conditions, the financial conditions of customers, and the amount and age of past due accounts. Receivables are considered past due if full payment is not received by the contractual due date. Past due accounts are generally written off against the allowance for doubtful accounts only after reasonable collection attempts have been exhausted. Activity regarding the allowance for doubtful accounts was as follows:

Balance, January 1, 2011	$	316
Amount charged to selling, general and administrative expenses	1,389
Charge-offs, net of recovery	(270		)
Balance, December 31, 2011	1,435
Amount charged to selling, general and administrative expenses	563
Charge-offs, net of recovery	(26		)
Balance, December 31, 2012	1,972
Amount charged to selling, general and administrative expenses	309
Charge-offs, net of recovery	(157		)
Balance, December 31, 2013	$	2,124

Inventories

Inventories

Inventories are valued at the lower of cost or market. There were no lower of cost or market adjustments made to the inventory values reported as of December 31, 2013 and 2012. Cost is determined based on the first-in, first-out method.

Renewable Identification Numbers (RINs)

Renewable Identification Numbers (RINs)

When the Company produces and sells a gallon of biodiesel, 1.5 RINs per gallon are generated. RINs are used to track compliance with Renewable Fuel Standards (RFS2). RFS2 allows the Company to attach between zero and 2.5 RINs to any gallon of biodiesel. When the Company sells a gallon of biodiesel, 1.5 RINs are generally attached. As a result, a portion of the selling price for a gallon of biodiesel is generally attributable to RFS2 compliance. However, RINs that the Company generates are a form of government incentive and not a result of the physical attributes of the biodiesel production. Therefore, no cost is allocated to the RIN when it is generated, regardless of whether the RIN is transferred with the biodiesel produced or held by the Company pending attachment to other biodiesel production sales. In addition, the Company also obtains RINs from third parties who have separated the RINs from gallons of biomass-based diesel. From time to time, the Company holds varying amounts of these separated RINs for resale. RINs obtained from third parties are initially recorded at their cost and are subsequently revalued at the lower of cost or market as of the last day of each accounting period and the resulting adjustments are reflected in costs of goods sold for the period. The value of RINs obtained from third parties is reflected in “Prepaid expenses and other assets” on the consolidated balance sheet. The cost of goods sold related to the sale of these RINs is determined using the average cost method, while market prices are determined by RIN values, as reported by the Oil Price Information Service (OPIS).

Derivative Instruments and Hedging Activities

Derivative Instruments

Derivatives are recorded on the balance sheet at fair value with changes in fair value recognized in current period earnings.

Valuation of Series A Preferred Stock Conversion Feature Embedded Derivatives

Valuation of Series A Preferred Stock Conversion Feature Embedded Derivatives

The conversion feature of the Series A Preferred Stock was accounted for as an embedded derivative prior to the conversion of Series A Preferred Stock in January 2012. This embedded derivative was a liability representing the estimated fair value of Series A Preferred Stock holders right to receive the fair market value of the Common Stock issuable upon conversion of the Series A Preferred Stock on the redemption date. The value of this derivative was adjusted each quarter based on changes in the estimated fair value, and a corresponding income or expense was recorded in change in fair value of the Preferred Stock conversion feature embedded derivatives in the Company’s statements of operations. The Company used the Black-Scholes options pricing model to estimate the fair value and assumptions included the expected volatility of the value of the Company’s equity, the expected conversion date, an appropriate risk-free interest rate and the estimated fair value of the Company’s equity.

Valuation of Seneca Holdco Liability

Valuation of Seneca Holdco Liability

The Company recorded a liability (Seneca Holdco Liability) at fair value, with changes in value recognized currently in earnings, for its obligation under a Put/Call Agreement with Seneca Holdco, LLC (Seneca Holdco) to purchase Seneca Landlord, LLC (Seneca Landlord) whose assets consisted primarily of a 60 mmgy biodiesel production facility in Seneca, Illinois (Seneca Facility) until the Company exercised its option and acquired the Seneca Facility in January 2012. Seneca Landlord was indirectly owned by three significant stockholders of the Company or their affiliates: Bunge North America, Inc. USRG Holdco IX, LLC, and West Central Cooperative.

The fair value of the Seneca Holdco Liability was determined by probability weighting the present value of gains or losses realized under each option in the Put/Call Agreement. The Put/Call Agreement had a term of seven years and was exercisable by either party at a price based on a pre-defined formula. The valuation required the development and use of highly subjective assumptions including (i) the value of the Landlord’s equity, (ii) expectations regarding future changes in the value of the Landlord’s equity, (iii) expectations about the probability of either option being exercised, including the Company’s ability to list its securities on an exchange or complete a public offering and (iv) an appropriate risk-free rate. Company management considered current public equity markets, relevant regulatory issues, industry conditions and the Company’s position within the industry when estimating the probability that the Company would raise additional capital.

Preferred Stock Accretion

Preferred Stock Accretion

The Company accreted the carrying value of the Series A Preferred Stock to its redemption value until January 2012 when it was converted in connection with the Initial Public Offering (IPO). Accretion of $1,808 and $25,343 for the years ended December 31, 2012 and 2011, respectively, was recognized as a reduction to income available to common stockholders in accordance with paragraph 15 of ASC Topic 480-10-S99.

The Company recorded the Series B Preferred Stock at fair value, which was a premium over its redemption value; therefore no accretion is recorded for the Series B Preferred Stock.

Non-monetary Exchanges

Non-monetary Exchanges

The Company records assets acquired and liabilities assumed through the exchange of non-monetary assets based on the fair value of the assets and liabilities acquired or the fair value of the consideration exchanged, whichever is more readily determinable.

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment is recorded at cost less accumulated depreciation. Maintenance and repairs are expensed as incurred. Depreciation expense is computed on a straight-line method based upon estimated useful lives of the assets. Estimated useful lives are as follows:

Automobiles and trucks	5 years
Computers and office equipment	5 years
Office furniture and fixtures	7 years
Machinery and equipment	5-30 years
Leasehold improvements	the lesser of the lease term or 30 years
Buildings and improvements	30-40 years

As of December 31, 2013, 2012 and 2011, the Company capitalized interest incurred on debt during the construction of assets of $335, $33 and $0, respectively.

Goodwill

Goodwill

Goodwill is tested for impairment annually on July 31 or when impairment indicators exist. Goodwill is allocated and tested for impairment by reporting units. The Company’s reporting units consist of its two operating segments, the biodiesel operating segment and services operating segment. The analysis is based on a comparison of the carrying value of the reporting unit to its fair value, determined utilizing both a discounted cash flow methodology and a market comparable methodology. The determination of whether or not the asset has become impaired involves a significant level of judgment in the assumptions underlying the approach used to determine the value of the Company’s reporting units. Changes in estimates of future cash flows caused by items such as unforeseen events or sustained unfavorable changes in market conditions could negatively affect the fair value of the reporting unit’s goodwill asset and result in an impairment charge. The annual impairment test determined that the fair value of the biodiesel operating segment exceeded its carrying value by approximately 43% and the services operating segment exceeded its carrying value by approximately 20%. There was no impairment of goodwill recorded in any of the periods presented.

The following table summarizes goodwill for the Company’s business segments:

	Biodiesel		Services		Total
Beginning balance - January 1, 2012	$	68,784	$	16,080	$	84,864
Acquisitions	—		—		—
Ending balance - December 31, 2012	68,784		16,080		84,864
Acquisitions	—		—		—
Ending balance - December 31, 2013	$	68,784	$	16,080	$	84,864

Impairment of Assets

Impairment of Assets

The Company tests its long-lived assets for recoverability when events or circumstances indicate that its carrying amount may not be recoverable. Significant assumptions used in the undiscounted cash flow analysis include the projected demand for biodiesel based on annual renewable fuel volume obligations under the Renewable Fuel Standards (RFS2), the Company's capacity to meet that demand, the market price of biodiesel and the cost of feedstock used in the manufacturing process. For facilities under construction, estimates also include the capital expenditures necessary to complete construction of the plant. The Company’s facilities under construction are expected to have substantially similar operating capabilities and results as the current operating facilities. Such operating capabilities would include similar feedstock capabilities, similar access to low cost feedstocks, proximity to shipping from our vendors and to our customers and our ability to transfer best practices among the Company's various operating facilities to maximize production volumes and reduce operating costs. There were no asset impairment charges for the years ended December 31, 2013, 2012 and 2011.

Investments

Investments

The Company has made investments in several biofuels businesses. These investments are recorded at cost and assessed for impairment at each reporting period. There were no impairment charges for the years ended December 31, 2013, 2012 and 2011.

Unfavorable Lease Obligation

Unfavorable Lease Obligation

The Company assumed a ground lease of a terminal facility in Houston, Texas as part of an acquisition which required the Company to pay above market rentals through the remainder of the lease term expiring in 2021. The unfavorable lease obligation is amortized over the contractual period the Company is required to make rental payments under the lease. The amount expected to be amortized each year for the remainder of the contract is $1,129.

Revenue Recognition

Revenue Recognition

The Company recognizes revenues from the following sources:

• the sale of biodiesel and its co-products, as well as Renewable Identification Numbers (RINs) and raw material feedstocks, purchased or produced by the Company at owned manufacturing facilities and manufacturing facilities with which the Company has tolling arrangements;

• the resale of biodiesel, RINs and raw material feedstocks acquired from third parties;

• fees received under toll manufacturing agreements with third parties;

• incentives received from federal and state programs for renewable fuels; and

• fees received for the marketing and sales of biodiesel produced by third parties and from managing operations of third party facilities.

Biodiesel, including RINs, and raw material feedstock revenues are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Fees received under toll manufacturing agreements with third parties are generally established as an agreed upon amount per gallon of biodiesel produced. The fees are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Revenues associated with the governmental incentive programs are recognized when the amount to be received is determinable, collectability is reasonably assured and the sale of product giving rise to the incentive has been recognized. The Company received funds from the United States Department of Agriculture (USDA) in the amount of $2,813, $1,161 and $9,913 for the years ended December 31, 2013, 2012 and 2011, respectively. The Company records amounts when it has received notification of a payment from the USDA or is in receipt of the funds and records the awards under the Program in "Biodiesel government incentives" as they are closely associated with the Company's biodiesel production activities.

While in general the Company has not historically offered sales incentives to customers, the uncertainty around the reinstatement of the federal blenders tax credit led to the introduction of such an incentive during 2012. Specifically, during 2012 the Company negotiated contracts with certain customers to allow such customers to share in the value of federal blenders tax payments if the law were to be reinstated. The federal blenders tax credit was reinstated on January 2, 2013 and the Company recognized $69,534 of cash payments owed to customers as a reduction of Biodiesel sales revenue. The Company did not have similar contracts before 2012.

Freight

Freight

Amounts billed to customers for freight are included in biodiesel sales. Costs incurred for freight are included in costs of goods sold.

Advertising Costs

Advertising Costs

Advertising costs are charged to expense as they are incurred. Advertising and promotional expenses were $648, $485 and $251 for the years ended December 31, 2013, 2012 and 2011, respectively.

Research and Development

Research and Development

The Company expenses research and development costs as incurred. Research and development costs totaled $258, $14 and $22 for the years ended December 31, 2013, 2012 and 2011, respectively.

Employee Benefits Plan

Employee Benefits Plan

The Company sponsors an employee savings plan under Section 401(k) of the Internal Revenue Code. The Company makes matching contributions equal to 50% of the participant’s pre-tax contribution up to a maximum of 6% of the participant’s eligible earnings. Total expense related to the Company’s defined contribution plan was approximately $533, $456 and $323 for the years ended December 31, 2013, 2012 and 2011, respectively.

Stock-Based Compensation

Stock-Based Compensation

Stock-based compensation expense is measured at the grant-date fair value of the award and recognized as compensation expense over the vesting period.

Income Taxes

Income Taxes

Deferred income taxes are recognized for differences between the financial statement and tax bases of assets and liabilities at enacted statutory tax rates in effect for the years in which differences are expected to reverse. Consideration is given to positive and negative evidence related to the realization of the deferred tax assets and valuation allowances are established to reduce deferred tax assets to the amounts expected to be realized. Significant judgment is required in making this assessment.

Recapitalization

Recapitalization

In connection with the Company's IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly-issued Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.5% per annum. All Series A Preferred Stock was converted and no Series A Preferred Stock remains outstanding. The Company recorded the effects from the exchange of Series A Preferred Stock for Series B Preferred Stock and Common Stock as an extinguishment in accordance with ASC Topic 260-10-S99-2.

Accordingly, the Company recognized an addition to the income available to common shareholders in the amount of $39,107. This amount was determined by comparing the fair value of the Series B Preferred Stock and Common Stock issued of $152,327 to the carrying amount of the Series A preferred shares that were redeemed of $191,434. The excess of the carrying amount of Series A Preferred Stock that were redeemed over the fair value of the Series B Preferred Stock and Common Stock that were issued was recorded as an increase to additional paid-in capital and was added to net earnings available to common shareholders of $39,107. The Series B Preferred Stock fair value was determined using Monte Carlo simulation methodology with the assistance of external third-party experts to calculate the fair-value using the Company's common stock at time of conversion. The significant assumptions included the volatility rate and risk-free rate based upon the yield of the U.S. Industrials B curve.

Variable Interest Entities

Variable Interest Entities

The Company uses both quantitative and qualitative analysis when evaluating its variable interest entities (VIE’s) and determining the primary beneficiary (PB) of a VIE. The Company consolidates a VIE if it has both (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance and (b) the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.

Concentrations

Concentrations

Certain customers represented greater than 10% of the total consolidated revenues of the Company for the three years ended December 31, 2013, 2012 and 2011. All customer amounts disclosed in the table are related to biodiesel sales:

	2013		2012		2011
Customer A	$	243,258	$	363,372	$	189,773

The Company maintains cash balances at financial institutions, which may at times exceed the $250 coverage by the U.S. Federal Deposit Insurance Company.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements and reported amounts of revenues and expenses during the reporting periods. These estimates are based on information that is currently available to management and on various assumptions that the Company believes to be reasonable under the circumstances. Actual results could differ from those estimates.

New Accounting Pronouncements

New Accounting Pronouncements

In July 2013, the FASB issued ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (Topic 740). The amendments to ASU 2013-11 provide guidance on the financial statement presentation of unrecognized tax benefit when a net operating loss carryforward, a similar loss, or a tax credit carryforward exists. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The Company will reflect the impact of these amendments beginning with the Company's Quarterly Report on Form 10-Q for the period ending March 31, 2014. The Company does not anticipate a material impact to the Company's financial position, results of operations or cash flows as a result of this change.

Fair Value Measurement

The fair value hierarchy prioritizes the inputs used in measuring fair value as follows:

• Level 1—Quoted prices for identical instruments in active markets.

• Level 2—Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations, in which all significant inputs are observable in active markets.

• Level 3—Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

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Other Assets - Other Noncurrent Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of other noncurrent assets
Debt issuance costs (net of accumulated amortization of $715 and $923, respectively)	$ 832	$ 946
Spare parts inventory	3,671	3,546
Other	526	859
Total	$ 5,029	$ 5,351

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Schedule I - Financial Information of Parent Company - Condensed Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 186,366	$ 22,259	$ 88,869
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation expense	9,705	8,024	7,184
Amortization expense	(463)	(103)	2,291
Provision for doubtful accounts	309	563	1,389
Stock compensation expense	(5,416)	(13,119)	(5,934)
(Income) from equity method investees	0	0	(442)
Deferred tax benefit	(67,057)	7,291	26,358
Change in fair value of preferred stock conversion feature embedded derivatives	0	(11,975)	(7,939)
Change in fair value of Seneca Holdco liability	0	(249)	1,497
Expense settled with stock issuance	0	1,898	0
Premium paid for Seneca Landlord investment	0	(7,063)	0
Changes in asset and liabilities, net of effects from mergers and acquisitions:
Accounts receivable	(64,460)	32,014	(35,421)
Prepaid expenses and other assets	(9,984)	(394)	(11,951)
Accounts payable	22,386	(4,002)	14,153
Accrued expenses	4,801	(2,614)	6,321
Net cash flows provided from (used in) operating activities	139,645	44,619	51,194
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash paid for purchase of property, plant and equipment	(39,053)	(12,654)	(4,806)
Cash paid for acquisitions	(10,933)	(1,791)	0
Net cash flows used in investing activities	(54,389)	(14,546)	(2,120)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash paid on note payable from subsidiaries	(10,999)	(44,509)	(20,695)
Cash received upon exercise of warrants	0	0	48
Cash received from initial public offering	0	63,747	0
Cash paid for issuance of common stock and preferred stock	(25)	(1,699)	(2,153)
Cash paid for treasury stock	(282)	(3,074)	0
Cash paid for preferred stock dividends	(1,291)	(3,155)	0
Net cash flows provided from (used in) financing activities	1,186	3,137	(19,758)
NET CHANGE IN CASH AND CASH EQUIVALENTS	86,442	33,210	29,316
CASH AND CASH EQUIVALENTS, Beginning of period	66,785	33,575	4,259
CASH AND CASH EQUIVALENTS, End of period	153,227	66,785	33,575
Parent Company
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	186,366	22,259	88,869
Adjustments to reconcile net income to net cash flows from operating activities:
Equity in earnings of continuing operations	(178,100)	(20,071)	(98,432)
Depreciation expense	255	157	410
Amortization expense	314	240	189
Provision for doubtful accounts	0	12	0
Stock compensation expense	5,416	13,119	5,934
(Income) from equity method investees	0	(71)	59
Deferred tax benefit	(12,239)	(7,794)	(4,967)
Change in fair value of preferred stock conversion feature embedded derivatives	0	(11,975)	(7,939)
Change in fair value of Seneca Holdco liability	0	(249)	2,097
Expense settled with stock issuance	0	1,898	0
Dividends received from subsidiary	162,969	0	6,802
Premium paid for Seneca Landlord investment	0	(7,063)	0
Changes in asset and liabilities, net of effects from mergers and acquisitions:
Accounts receivable	(514)	675	(564)
Prepaid expenses and other assets	2,849	(4,978)	(204)
Accounts payable	(1,246)	2,254	674
Accrued expenses	770	(973)	1,818
Net cash flows provided from (used in) operating activities	166,840	(12,560)	(5,254)
CASH FLOWS FROM INVESTING ACTIVITIES:
Change in investments in subsidiaries	(153,343)	(352)	(158)
Cash paid for purchase of property, plant and equipment	(2,444)	(666)	(679)
Cash paid for acquisitions	(10,933)	(1,647)	0
Net cash flows used in investing activities	(166,720)	(2,665)	(837)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash paid on note receivable to subsidiaries	(35,982)	(22,711)	(1,482)
Cash received on note receivable from subsidiaries	27,754	0	4,671
Cash paid on note payable from subsidiaries	0	(3,846)	0
Cash received on note payable from subsidiaries	0	1,250	2,596
Repayment of investment in Seneca Landlord	0	(4,000)	0
Cash received upon exercise of warrants	0	0	48
Cash received from initial public offering		63,747
Cash paid for issuance of common stock and preferred stock	(25)	(1,699)	(1,199)
Cash paid for treasury stock	(282)	(3,074)	0
Cash paid for preferred stock dividends	(1,291)	(3,155)	0
Net cash flows provided from (used in) financing activities	(9,826)	26,512	4,634
NET CHANGE IN CASH AND CASH EQUIVALENTS	(9,706)	11,287	(1,457)
CASH AND CASH EQUIVALENTS, Beginning of period	11,287	0	1,457
CASH AND CASH EQUIVALENTS, End of period	$ 1,581	$ 11,287	$ 0

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Inventories - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Inventories
Raw materials	$ 13,393	$ 9,835
Work in process	1,456	448
Finished goods	70,965	34,923
Total	$ 85,814	$ 45,206

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Income Taxes - Income Tax Benefit (Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current income tax benefit (expense)
Federal	$ 2,432	$ (912)	$ (4,883)
State	2,492	(588)	(3,066)
Current income tax (expense) benefit	4,924	(1,500)	(7,949)
Deferred income tax benefit (expense)
Federal	15,297	(9,857)	(4,709)
State	3,736	(1,187)	(1,703)
Net operating loss carryforwards created (utilized)	48,024	3,753	(19,946)
Deferred income tax (expense) benefit	67,057	(7,291)	(26,358)
Income tax benefit (expense) before valuation allowances	71,981	(8,791)	(34,307)
Changes in valuation allowance charged to income	(76,916)	7,337	31,325
Income tax expense	$ (4,935)	$ (1,454)	$ (2,982)

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Summary of Significant Accounting Policies - Concentrations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Concentration Risk [Line Items]
Revenues	$ 390,591	$ 458,444	$ 384,735	$ 264,368	$ 231,948	$ 322,912	$ 271,927	$ 188,247	$ 1,498,138	$ 1,015,034	$ 824,031
Customer A
Concentration Risk [Line Items]
Revenues									$ 243,258	$ 363,372	$ 189,773

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Fair Value Measurement - (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Asset (Liability) Carrying Amount
Estimated fair values of the Company's financial instruments
Notes payable and lines of credit	$ (45,166)	$ (37,044)
Estimated Fair Value
Estimated fair values of the Company's financial instruments
Notes payable and lines of credit	$ (45,094)	$ (37,000)

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Intangible Assets - Estimated Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Estimated amortization expense
2014	$ 418
2015	479
2016	492
2017	506
2018	521
Thereafter	2,451
Total intangible assets	$ 4,867	$ 4,609

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Borrowings - Maturities of Borrowings (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Summary of maturities of the term borrowings
2014	$ 7,029
2015	6,699
2016	4,380
2017	4,218
2018	11,223
Thereafter	631
Total	34,180
Less: current portion	(7,029)
Noncurrent	$ 27,151

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Accrued Expenses and Other Liabilities - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of accrued expenses and other liabilities
Accrued property taxes	$ 1,271	$ 1,201
Accrued employee compensation	8,138	3,375
Accrued interest	109	47
Unfavorable lease obligation, current portion	1,129	1,129
Incentive stock liability	583	423
Excise tax payable	545	136
Other	530	164
Total	$ 12,305	$ 6,475

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Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets:
Goodwill, Noncurrent	$ 10,791	$ 11,999
Net operating loss carryforwards, Noncurrent	81,761	4,806
Tax credit carryforwards, Noncurrent	3,068	3,068
Start-up costs, Noncurrent	1,231	1,362
Stock-based compensation, Noncurrent	2,137	1,214
Houston terminal lease, Noncurrent	1,892	2,139
Accrued compensation, Current	2,908	1,113
Inventory capitalization, Current	1,053	985
Allowance for doubtful accounts, Current	866	802
Other, Current	150	236
Other, Noncurrent	1,064	678
Deferred tax assets Current	4,977	3,136
Deferred tax assets Noncurrent	101,944	25,266
Deferred Tax Liabilities:
Prepaid expenses, Current	(949)	(596)
Property, plant and equipment, Noncurrent	(30,568)	(23,425)
Deferred revenue, Current	(4,127)	0
Other, current	(8)	(28)
Other, Noncurrent	(731)	(872)
Deferred tax liabilities, Current	(5,084)	(624)
Deferred tax liabilities, Noncurrent	(31,299)	(24,297)
Net deferred tax assets, Current	(107)	2,512
Net deferred tax assets, Noncurrent	70,645	969
Valuation Allowance, Current	(3,580)	0
Valuation Allowance, Noncurrent	(73,336)	0
Net deferred tax, Current	(3,687)	2,512
Net deferred tax, Noncurrent	$ (2,691)	$ 969

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Intangible Assets - (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Indefinite-lived Intangible Assets [Line Items]
Amortization expense	$ 325	$ 252	$ 200
Raw Material Supply Agreement
Indefinite-lived Intangible Assets [Line Items]
Raw material supply agreement useful life	15 years

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Variable Interest Entities - (Details) (Bell, LLC, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Bell, LLC
Assets (liabilities) acquired:
Cash	$ 22
Property, plant and equipment	5,881
Noncurrent assets	4
Other current liabilities	(17)
Debt	(4,757)
Other noncurrent liabilities	(567)
Carrying value of previously held equity method investment	$ 566

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Derivative Instruments

12 Months Ended

Dec. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

DERIVATIVE INSTRUMENTS

The Company has entered into derivatives to hedge its exposure to price risk related to feedstock inventory and biodiesel finished goods inventory. Additionally, the Company has entered into an interest rate swap with the objective of managing risk caused by fluctuations in interest rates associated with the REG Danville note payable. The Company does not enter into derivative transactions for trading purposes.

All of the Company’s derivatives are designated as non-hedge derivatives and are utilized to manage cash flow. Although the contracts may be effective economic hedges of specified risks, they are not designated as, nor accounted for, as hedging instruments. Unrealized gains and losses on commodity futures, swaps and options contracts used to hedge feedstock purchases or biodiesel inventory are recognized as a component of biodiesel costs of goods sold reflected in current results of operations. Commodity hedge gains and losses are generally offset by other corresponding changes in gross margin through changes in either biodiesel sales price and/or feedstock price. Unrealized gains and losses on the interest rate swap are recorded in other income (expense), net in the Company’s statements of operations. All derivative financial instruments are recorded on the balance sheet at fair value.

As of December 31, 2013, the Company has entered into heating oil and soybean oil derivative instruments and an interest rate swap agreement. The Company has entered into heating oil and soy oil commodity-based derivatives in order to protect gross profit margins from potentially adverse effects of price volatility on biodiesel sales where the prices are set at a future date. As of December 31, 2013, the Company had 1,076 open commodity contracts. In addition, the Company manages interest rate risk associated with the REG Danville variable interest rate note payable using a fixed rate swap. The interest rate swap agreement has an outstanding notional value of $3,295 as of December 31, 2013. The agreement effectively fixes the variable component of the interest rate on the Term Loan at 0.92% through July 2015. The fair value of the interest rate swap agreements was $19 and $46 at December 31, 2013 and 2012, respectively, and is recorded in the other noncurrent liabilities.

As of December 31, 2013, the Company posted $13,896 of collateral associated with its commodity-based derivatives with a net liability position of $221.

The Company’s preferred stock embedded conversion feature related to the Series A Preferred Stock that was converted upon our IPO is further discussed in “Note 2—Summary of Significant Accounting Policies.”

The following tables provide details regarding the Company’s derivative financial instruments:

	As of December 31, 2013
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swap		$	—	Other liabilities	$	19
Commodity futures	Prepaid expenses and other assets	62		Prepaid expenses and other assets	—
Commodity swaps	Prepaid expenses and other assets	75		Prepaid expenses and other assets	491
Commodity options	Prepaid expenses and other assets	188		Prepaid expenses and other assets	55
Total derivatives		$	325		$	565

	As of December 31, 2012
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Interest rate swap		$	—	Other liabilities	$	46
Commodity swaps	Prepaid expenses and other assets	305		Prepaid expenses and other assets	476
Commodity options	Prepaid expenses and other assets	143		Prepaid expenses and other assets	388
Total derivatives		$	448		$	910

		2013			2012			2011
	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income on Derivatives			Amount of Gain (Loss) Recognized in Income on Derivatives			Amount of Gain (Loss) Recognized in Income on Derivatives
Embedded derivative	Change in fair value of preferred stock conversion feature embedded derivatives	$	—		$	11,975		$	7,939
Interest rate swap	Other income (loss)	26			(5		)	571
Commodity futures	Cost of goods sold - Biodiesel	258			(4		)	(97		)
Commodity swaps	Cost of goods sold - Biodiesel	(5,775		)	(4,254		)	2,557
Commodity options	Cost of goods sold - Biodiesel	(139		)	(364		)	567
Total		$	(5,630	)	$	7,348		$	11,537

The tables below represent the amounts subject to an enforceable master netting arrangement not otherwise disclosed:

	2013
	Asset Derivatives			Liability Derivatives
Gross amounts recognized	$	14,221		$	565
Gross amounts offset in the Statement of Financial Position	(325		)	(325		)
Net amounts presented in the Statement of Financial Position	13,896			240
Gross amounts not offset in the Statement of Financial Position	(13,896		)	—
Net amount	$	—		$	240

	2012
	Asset Derivatives			Liability Derivatives
Gross amounts recognized	$	8,501		$	910
Gross amounts offset in the Statement of Financial Position	(448		)	(448		)
Net amounts presented in the Statement of Financial Position	8,053			462
Gross amounts not offset in the Statement of Financial Position	(8,053		)	—
Net amount	$	—		$	462

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Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Dilutive weighted average securities were excluded from the calculation of diluted net income (loss) per share attributable to common stockholders during the periods

The following potentially dilutive weighted average securities were excluded from the calculation of diluted net income (loss) per share attributable to common stockholders during the periods presented as the effect was anti-dilutive:

	Year Ended December 31,
	2013	2012	2011
Options to purchase common stock	87,026	87,026	87,207
Restricted stock units	—	754,359	1,230,092
Stock appreciation rights	1,030,926	1,196,975	—
Warrants to purchase common stock	—	35,987	355,886
Redeemable preferred shares	—	—	5,382,209
Total	1,117,952	2,074,347	7,055,394

Calculation of diluted net income per share

The following table presents the calculation of diluted net income per share for the years ended December 31, 2013 and 2012. For the year ended December 31, 2011, the effect from all convertible securities were anti-dilutive (in thousands, except share and per share data):

	2013			2012
Net income attributable to the Company's common stockholders - Basic	$	165,254		$	43,482
Less: effects of recapitalization	—			(39,107		)
Plus: change in undistributed dividends allocated to preferred stockholders	—			823
Plus: distributed dividends to Preferred Stockholders	2,055			3,156
Plus: accretion of Series A Preferred Stock to redemption value	—			1,808
Plus: (gain) loss due to change in fair value of Series A Preferred Stock conversion feature embedded derivatives	—			(11,975		)
Plus: effect of participating securities	19,057			12,097
Net income attributable to common stockholders	186,366			10,284
Less: effect of participating securities	(21,108		)	(1,108		)
Net income attributable to the Company's common stockholders - Diluted	$	165,258		$	9,176
Shares:
Weighted-average shares outstanding - Basic	33,045,164			28,381,676
Adjustment to reflect conversion of preferred stock	—			5,958,790
Adjustment to reflect stock appreciation right conversions	7,065			—
Adjustment to reflect warrants to purchase common stock	650			—
Weighted-average shares outstanding - Diluted	33,052,879			34,340,466
Net income per share attributable to common stockholders - Diluted	$	5.00		$	0.27

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Accrued Expenses and Other Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accrued Liabilities [Abstract]

Summary of accrued expenses and other liabilities

Accrued expenses and other liabilities consist of the following at December 31:

	2013		2012
Accrued property taxes	$	1,271	$	1,201
Accrued employee compensation	8,138		3,375
Accrued interest	109		47
Unfavorable lease obligation, current portion	1,129		1,129
Incentive stock liability	583		423
Excise tax payable	545		136
Other	530		164
Total	$	12,305	$	6,475

Summary of other noncurrent liabilities

Other noncurrent liabilities consist of the following at December 31:

	2013		2012
Fair value of interest rate swap	$	19	$	46
Liability for unrecognized tax benefits	1,900		1,900
Deferred grant revenue	745		745
Straight-line lease liability	3,581		4,011
Bell, LLC member investment on consolidation	593		590
Total	$	6,838	$	7,292

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Intangible Assets - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Components of Intangible assets
Raw material supply agreement intangibles	$ 5,502	$ 4,919
Ground lease	200	200
Accumulated amortization	(835)	(510)
Total intangible assets	$ 4,867	$ 4,609

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Stock-Based Compensation - (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 26, 2011
Stock-Based Compensation (Textual) [Abstract]
Common Stock				4,160,000
Stock-based compensation cost relating to the stock options and restricted stock units	$ 5,416	$ 13,119	$ 5,934
Unrecognized compensation expense	$ 7,655
Expected period of unrecognized compensation expense	3 years 8 months 13 days
Stock Appreciation Rights, grant expiry date	10 years
Restricted stock units
Stock-Based Compensation (Textual) [Abstract]
Conversion of common stock upon vesting	1
Service period for RSU awards	3 years
Initial public offering effective date	Jan. 24, 2012
Amount of Awards, Exercised/Restricted stock units vested	192,190	1,294,519	50,000
Restricted stock units | Board of Directors
Stock-Based Compensation (Textual) [Abstract]
Service period for RSU awards	1 year
Restricted stock units | Certain executive management
Stock-Based Compensation (Textual) [Abstract]
Service period for RSU awards	4 years
Stock appreciation rights
Stock-Based Compensation (Textual) [Abstract]
Percentage of SAR's vesting annually	25.00%

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Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2013

Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]

Fair values of the assets and liabilities recorded by the Company

The following table summarizes the fair values of the assets and liabilities recorded by the Company as a result of the consolidation of Bell, LLC:

	Allocation at January 1, 2011
Assets (liabilities) acquired:
Cash	$	22
Property, plant and equipment	5,881
Noncurrent assets	4
Other current liabilities	(17		)
Debt	(4,757		)
Other noncurrent liabilities	(567		)
Carrying value of previously held equity method investment	$	566

A summary of assets (liabilities) measured at fair value is as follows:

	As of December 31, 2013
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(19	)	$	—	$	(19	)	$	—
Commodity futures	62			—		62			—
Commodity swaps	(416		)	—		(416		)	—
Commodity options	133			—		133			—
	$	(240	)	$	—	$	(240	)	$	—

	As of December 31, 2012
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(46	)	$	—	$	(46	)	$	—
Commodity swaps	(171		)	—		(171		)	—
Commodity options	(245		)	—		(245		)	—
	$	(462	)	$	—	$	(462	)	$	—

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Supplemental Quarterly Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Significant items for the results of operations on a quarterly basis

The following table represents the significant items for the results of operations on a quarterly basis for the years ended December 31, 2013 and 2012:

	Three Months Ended March 31, 2013			Three Months Ended June 30, 2013			Three Months Ended September 30, 2013			Three Months Ended December 31, 2013
Revenues	$	264,368		$	384,735		$	458,444		$	390,591
Gross profit	86,695			50,181			57,849			44,708
Selling, general, and administrative expenses	9,644			11,226			12,686			12,567
Income from operations	77,051			38,955			45,163			32,141
Other income (expense), net	(459		)	(511		)	(511		)	(528		)
Net income	46,403			23,130			86,703			30,130
Net income per share attributable to common stockholders - basic	1.25			0.63			2.32			0.81
Net income per share attributable to common stockholders - diluted	1.25			0.62			2.31			0.80

	Three Months Ended March 31, 2012		Three Months Ended June 30, 2012			Three Months Ended September 30, 2012			Three Months Ended December 31, 2012
Revenues	$	188,247	$	271,927		$	322,912		$	231,948
Gross profit	17,034		30,949			2,791			7,549
Selling, general, and administrative expenses	12,962		11,014			9,902			8,544
Income (loss) from operations	4,072		19,935			(7,111		)	(995		)
Other income (expense), net	11,308		(1,031		)	(1,094		)	(1,371		)
Net income (loss)	14,017		14,433			(6,040		)	(151		)
Net income (loss) per share attributable to common stockholders - basic	1.60		0.39			(0.24		)	(0.03		)
Net income (loss) per share attributable to common stockholders - diluted	0.06		0.39			(0.24		)	(0.03		)

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Acquisitions and Equity Transactions - BullDog Biodiesel, LLC Purchase Price Allocation (Details) (BullDog Biodiesel, LLC, USD $) In Thousands, unless otherwise specified	Nov. 16, 2012
BullDog Biodiesel, LLC
Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition
Other current assets	$ 13
Property, plant and equipment	(2,646)
Total	$ 2,659

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Net Income Per Share - EPS Reconciliation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]
NET INCOME ATTRIBUTABLE TO THE COMPANY’S COMMON STOCKHOLDERS									$ 165,254	$ 43,482	$ 42,753
Less: effects of recapitalization									0	(39,107)	0
Plus: change in undistributed dividends allocated to preferred stockholders									0	(823)	(12,723)
Plus: distributed dividends to Preferred Stockholders									2,055	3,156	0
Accretion of preferred stock to redemption value									0	1,808	25,343
Plus: (gain) loss due to change in fair value of Series A Preferred Stock conversion feature embedded derivatives									0	(11,975)
Plus: effect of participating securities									19,057	12,097
Net income attributable to common stockholders									186,366	10,284
Less: effect of participating securities									(21,108)	(1,108)
Net income attributable to the Company's common stockholders - Diluted									$ (165,258)	$ (9,176)
Weighted-average shares outstanding - Basic									33,045,164	28,381,676	13,607,840
Adjustment to reflect conversion of preferred stock									0	5,958,790
Adjustment to reflect stock appreciation right conversions									7,065	0
Adjustment to reflect warrants to purchase common stock									650	0
Weighted-average shares outstanding - Diluted									33,052,879	34,340,466	13,607,840
Net income per share attributable to common stockholders - diluted	$ 0.80	$ 2.31	$ 0.62	$ 1.25	$ (0.03)	$ (0.24)	$ 0.39	$ 0.06	$ 5.00	$ 0.27	$ 3.14

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Redeemable Preferred Stock - (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended	12 Months Ended					12 Months Ended	1 Months Ended	3 Months Ended	1 Months Ended				3 Months Ended	6 Months Ended	12 Months Ended		12 Months Ended	1 Months Ended	12 Months Ended
	Jan. 31, 2012	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Partial Conversion	Dec. 31, 2013 Full Conversion	Dec. 31, 2013 Minimum	Jan. 24, 2012 Common Stock	Sep. 30, 2013 Common Stock	Dec. 31, 2012 Series B Preferred Stock	Jun. 30, 2012 Series B Preferred Stock	Jan. 24, 2012 Series B Preferred Stock	Jan. 31, 2012 Series B Preferred Stock	Sep. 30, 2013 Series B Preferred Stock	Jun. 30, 2013 Series B Preferred Stock	Dec. 31, 2013 Series B Preferred Stock	May 31, 2012 Series B Preferred Stock	Dec. 31, 2013 Series B Preferred Stock Make-whole Payment	Jan. 24, 2012 Series A Preferred Stock	Dec. 31, 2013 Series A Preferred Stock
Class of Stock [Line Items]
Conversion of Class A common stock/Series B Preferred Stock to common stock, Shares									7,660,612				2,999,493	2,999,493
Dividends payable per share											$ 0.5625						$ 0.5625	$ 0.49
Percentage of vote for Series B Preferred Stock shares outstanding																	75.00%
Initial Optional Redemption Date																	18 months
Redemption conversion less any dividends paid																			$ 2.25
Preferred stock redemption amount											$ 74,878		$ 74,987				$ 3,583
Fair market value per share																	$ 25.00
Preferred stock cumulative dividends	4.50%												4.50%				4.50%
Preferred Stock accrued dividends																	$ 1.125			$ 0.88	$ 0.88
Dividends are payable semi-annually in arrears on June 30 and December 30 of each year			Dividends are payable semi-annually in arrears on June 30 and December 30 of each year.
Dividend paid			1,291	3,155	0						1,685	1,470				1,205	80
Share price						$ 15.00	$ 16.00			$ 15.00
Minimum trading days								20 days		20 days
Percentage of outstanding shares of preferred stock series															50.00%		50.00%
Aggregate net proceeds from equity offering																	20,000
Percentage of proceeds from equity offering used in redemption of preferred stock																	25.00%
Preferred stock dividend payment duration																	30 days
Consecutive trading days			30 days							30 days
Percentage of preferred stock holding																	25.00%
Average daily trading volume			$ 2,500
Initial conversion rate for each $25.00 of Liquidation Preference will be equal to $25.00 divided by a price that is 125% of the public offering price in the IPO.			Initial conversion rate for each $25.00 of Liquidation Preference will be equal to $25.00 divided by a price that is 125% of the public offering price in the IPO.
Liquidation Preference			$ 25.00
Percentage of public offering used for calculating liquidation preference			125.00%
Average daily trading volume, shares		200,000	200,000
Dividend payment date												Jun. 30, 2012
Preferred stock redemption date																	Jun. 30, 2015

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Operating Leases (Tables)

12 Months Ended

Dec. 31, 2013

Leases, Operating [Abstract]

Future minimum lease payments under operating leases

For each of the next five calendar years and thereafter, future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess of one year are as follows:

	Total Payments
2014	$	11,948
2015	9,401
2016	8,856
2017	8,339
2018	8,001
Thereafter	30,243
Total minimum payments	$	76,788

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Organization, Presentation, and Nature of the Business

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Presentation, and Nature of the Business

ORGANIZATION, PRESENTATION, AND NATURE OF THE BUSINESS

Renewable Energy Group, Inc. (the "Company") is a leading North American biodiesel producer with a nationwide distribution and logistics system. The Company participates in each aspect of biodiesel production, from acquiring feedstock, managing construction and operating biodiesel production facilities, to marketing, selling and distributing biodiesel and its co-products.

The Company operates a network of eight operating biodiesel production facilities with aggregate nameplate production capacity of 257 million gallons per year, or mmgy. A number of these plants are “multi-feedstock capable” which allows them to use a broad range of lower cost feedstocks, such as inedible corn oil, used cooking oil and inedible animal fats in addition to vegetable oils, such as soybean oil and canola oil.

The Company also has three partially constructed production facilities and one non-operational production facility. In 2007, the Company commenced construction of two60 mmgy production facilities, one near New Orleans, Louisiana and the other in Emporia, Kansas. In 2008, the Company halted construction of these facilities as a result of conditions in the biodiesel industry and the credit markets. Construction of the New Orleans facility is approximately 45% complete and construction of the Emporia facility is approximately 20% complete. In September 2010, the Company acquired a 15 mmgy production facility in Clovis, New Mexico which is approximately 50% complete. Currently, the Clovis facility is being operated as a terminal. In November 2012, the Company completed our acquisition of Bulldog Biodiesel, LLC, a 15 mmgy production facility near Atlanta, Georgia, that was non-operational at the time the Company purchased it and will remain idled until certain repairs or upgrades are made. The Company will need to raise additional capital to complete construction of these plants and fund working capital requirements. It is uncertain when or if financing will be available.

The biodiesel industry and the Company’s business have benefited from the continuation of certain federal and state incentives. The federal blenders tax credit expired on December 31, 2013 and it is uncertain whether it will be reinstated. This revocation along with other amendments of any one or more of those laws, could adversely affect the financial results of the Company.

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Schedule I - Financial Information of Parent Company - Condensed Balance Sheets (Parenthetical) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Jan. 03, 2012	Jul. 12, 2011	Dec. 31, 2013 Series B Preferred Stock	Dec. 31, 2012 Series B Preferred Stock	Jan. 24, 2012 Series B Preferred Stock	Jan. 03, 2012 Series B Preferred Stock	Dec. 31, 2013 Parent Company	Dec. 31, 2012 Parent Company	Dec. 31, 2013 Parent Company Series B Preferred Stock	Dec. 31, 2012 Parent Company Series B Preferred Stock
Preferred stock, par value					$ 0.0001	$ 0.0001					$ 0.0001	$ 0.0001
Preferred stock, shares authorized					3,000,000	3,000,000		3,000,000			3,000,000	3,000,000
Preferred stock, shares outstanding					143,313	2,995,106,000					143,313	2,995,106
Preferred stock redemption amount					$ 3,583	$ 74,878	$ 74,987				$ 3,583	$ 74,878
Common stock, par value	$ 0.0001	$ 0.0001	$ 0.0001						$ 0.0001	$ 0.0001
Common stock, shares authorized	300,000,000	300,000,000	450,000,000						300,000,000	300,000,000
Common Stock, shares outstanding	36,506,221	30,559,935							36,506,221	30,559,935
Common stock, shares issued				673,544
Treasury stock, shares outstanding	530,898	462,985							530,898	462,985

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Acquisitions and Equity Transactions - SoyMor Biodiesel, LLC Purchase Price Allocation (Details) (SoyMor Biodiesel, LLC, USD $) In Thousands, unless otherwise specified	Jul. 12, 2011
SoyMor Biodiesel, LLC
Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition
Inventory	$ (78)
Property, plant and equipment	(18,886)
Debt	(1,001)
Fair value of investment prior to allocation	1,613
Fair value of common stock issued	$ 16,350

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Borrowings (Tables)

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Company's borrowings

The Company’s term borrowings at December 31 are as follows:

	2013		2012
REG Danville term loan	$	5,626	$	10,060
REG Newton term loan	18,143		21,175
REG Mason City term loan	5,135		—
Other	1,247		1,496
Total notes payable	$	30,151	$	32,731
Bell, LLC promissory note - variable interest entity	$	4,029	$	4,313

Summary of company's revolving borrowings

The Company’s revolving borrowings at December 31 are as follows:

	2013		2012
Total revolving loans (current)	$	10,986	$	—

Summary of maturities of the term borrowings

Maturities of the term borrowings are as follows for the years ending December 31:

2014	$	7,029
2015	6,699
2016	4,380
2017	4,218
2018	11,223
Thereafter	631
Total	34,180
Less: current portion	(7,029		)
	$	27,151

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

The Company is involved in legal proceedings in the normal course of business. The Company currently believes that any ultimate liability arising out of such proceedings will not have a material adverse effect on the Company’s financial position, results of operations or cash flows.

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Reportable Segments

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Reportable Segments

REPORTABLE SEGMENTS

The Company reports its reportable segments based on services provided to customers, which includes Biodiesel, Services and Corporate and other activities. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. The Company has chosen to differentiate the reportable segments based on the products and services each segment offers.

The Biodiesel segment processes waste vegetable oils, animal fats, virgin vegetable oils and other feedstocks and methanol into biodiesel. The Biodiesel segment also includes the Company’s purchases and resale of biodiesel produced by third parties. Revenue is derived from the purchases and sales of biodiesel, RINs and raw material feedstocks acquired from third parties, sales of biodiesel produced under toll manufacturing arrangements with third party facilities, sales of processed biodiesel from Company facilities, related by-products and renewable energy government incentive payments. The Services segment offers services for managing the construction of biodiesel production facilities and managing ongoing operations of third party plants and collects fees related to the services provided. The Company does not allocate items that are of a non-operating nature or corporate expenses to the business segments. Intersegment revenues are reported by the Services segment, which manages the construction and operations of facilities included in the Biodiesel segment. Revenues are recorded by the Services segment at cost. Corporate expenses consist of corporate office expenses including compensation, benefits, occupancy and other administrative costs, including management service expenses.

The following table represents the significant items by reportable segment for the results of operations for the years ended December 31, 2013, 2012 and 2011:

	2013			2012			2011
Net sales:
Biodiesel	$	1,498,011		$	1,014,797		$	823,809
Services	63,980			38,031			13,027
Intersegment revenues	(63,853		)	(37,794		)	(12,805		)
	$	1,498,138		$	1,015,034		$	824,031
Income before income taxes and income from equity investments:
Biodiesel	$	239,462		$	58,349		$	127,187
Services	(29		)	(26		)	24
Corporate and other (a)	(48,132		)	(34,610		)	(35,802		)
	$	191,301		$	23,713		$	91,409
Depreciation and amortization expense, net:
Biodiesel	$	8,199		$	7,111		$	8,833
Services	120			38			4
Corporate and other (a)	923			772			638
	$	9,242		$	7,921		$	9,475
Cash paid for purchases of property, plant and equipment:
Biodiesel	$	36,770		$	11,409		$	3,823
Services	504			396			53
Corporate and other (a)	1,779			849			930
	$	39,053		$	12,654		$	4,806

	2013		2012		2011
Goodwill:
Biodiesel	$	68,784	$	68,784	$	68,784
Services	16,080		16,080		16,080
	$	84,864	$	84,864	$	84,864
Assets:
Biodiesel	$	444,945	$	357,305	$	341,863
Services	20,542		20,033		20,474
Corporate and other (b)	275,368		118,446		122,110
	$	740,855	$	495,784	$	484,447

(a) Corporate and other includes income/(expense) not associated with the reportable segments, such as corporate general and administrative expenses, shared service expenses, interest expense and interest income, all reflected on an accrual basis of accounting.

(b) Corporate and other includes cash and other assets not associated with the reportable segments, including investments.

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Related Party Transactions - (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013
West Central
Related Party Transaction (Textual) [Abstract]
Annual land lease cost	$ 1
The proportionate share of the costs associated with the provision of services	15.00%
Notice period of services agreement	6 months
USRG Holdco IX, LLC
Related Party Transaction (Textual) [Abstract]
Loan with USRG for purchasing feedstocks and chemicals	$ 10,000,000
Servicing Contracts | West Central
Related Party Transaction (Textual) [Abstract]
Related party transaction initial term	1 year
Lease Agreements
Related Party Transaction (Textual) [Abstract]
Agreement initial term	20 years
Additional renewal period	30 years

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Summary of Significant Accounting Policies - Goodwill (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill for Company's business segments
Beginning Balance	$ 84,864	$ 84,864
Acquisitions	0	0
Ending Balance	84,864	84,864
Biodiesel
Goodwill for Company's business segments
Beginning Balance	68,784	68,784
Acquisitions	0	0
Ending Balance	68,784	68,784
Services
Goodwill for Company's business segments
Beginning Balance	16,080	16,080
Acquisitions	0	0
Ending Balance	$ 16,080	$ 16,080

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Tax effects of temporary differences that give rise to the Company's deferred tax assets and liabilities

The tax effects of temporary differences that give rise to the Company’s deferred tax assets and liabilities at December 31 are as follows:

	2013						2012
	Current			Noncurrent			Current			Noncurrent
Deferred Tax Assets:
Goodwill	$	—		$	10,791		$	—		$	11,999
Net operating loss carryforwards	—			81,761			—			4,806
Tax credit carryforwards	—			3,068			—			3,068
Start-up costs	—			1,231			—			1,362
Stock-based compensation	—			2,137			—			1,214
Houston terminal lease	—			1,892			—			2,139
Accrued compensation	2,908			—			1,113			—
Inventory capitalization	1,053			—			985			—
Allowance for doubtful accounts	866			—			802			—
Other	150			1,064			236			678
Deferred tax assets	4,977			101,944			3,136			25,266
Deferred Tax Liabilities:
Prepaid expenses	(949		)	—			(596		)	—
Property, plant and equipment	—			(30,568		)	—			(23,425		)
Deferred revenue	(4,127		)	—			—			—
Other	(8		)	(731		)	(28		)	(872		)
Deferred tax liabilities	(5,084		)	(31,299		)	(624		)	(24,297		)
Net deferred tax assets (liabilities)	(107		)	70,645			2,512			969
Valuation allowance	(3,580		)	(73,336		)	—			—
Net deferred taxes	$	(3,687	)	$	(2,691	)	$	2,512		$	969

Valuation allowance for deferred tax assets

Activity regarding the valuation allowance for deferred tax assets was as follows:

	2013		2012			2011
Beginning of year balance	$	—	$	7,337		$	38,662
Changes in valuation allowance charged to income	76,916		(7,337		)	(31,325		)
End of year balance	$	76,916	$	—		$	7,337

Income tax benefit (expense)

Income tax benefit (expense) for the years ended December 31 is as follows:

	2013			2012			2011
Current income tax benefit (expense)
Federal	$	2,432		$	(912	)	$	(4,883	)
State	2,492			(588		)	(3,066		)
	4,924			(1,500		)	(7,949		)
Deferred income tax benefit (expense)
Federal	15,297			(9,857		)	(4,709		)
State	3,736			(1,187		)	(1,703		)
Net operating loss carryforwards created (utilized)	48,024			3,753			(19,946		)
	67,057			(7,291		)	(26,358		)
Income tax benefit (expense) before valuation allowances	71,981			(8,791		)	(34,307		)
Deferred tax valuation allowances	(76,916		)	7,337			31,325
Income tax expense	$	(4,935	)	$	(1,454	)	$	(2,982	)

Effective income tax rate continuing operations tax rate reconciliation

A reconciliation of the reported amount of income tax expense to the amount computed by applying the statutory federal income tax rate to earnings from continuing operations before income taxes is as follows:

	2013			2012			2011
U.S. Federal income tax expense at a statutory rate of 35 percent	$	(66,955	)	$	(8,256	)	$	(32,090	)
State taxes, net of federal income tax benefit	6,905			(684		)	(3,020		)
Tax position on government incentives	131,829			—			—
Loss on embedded derivative	—			4,191			2,779
Reduction in stock-based compensation deferred tax asset	—			(3,686		)	—
Domestic production activities deduction	—			—			307
Seneca Landlord	—			200			(1,701		)
Unrecognized tax benefits	—			(400		)	—
Other	202			(156		)	(582		)
Total (expense) benefits for income taxes before valuation allowances	71,981			(8,791		)	(34,307		)
Valuation allowances	(76,916		)	7,337			31,325
Total expense for income taxes	$	(4,935	)	$	(1,454	)	$	(2,982	)

Reconciliation of total amounts of unrecognized tax benefits

A reconciliation of the total amounts of unrecognized tax benefits at December 31 is as follows:

	2013		2012		2011
Beginning of year balance	$	1,900	$	1,500	$	1,500
Increases to tax positions expected to be taken	—		—		—
Increases to tax positions taken during prior years	—		400		—
Decreases to tax positions taken during prior years	—		—		—
Decreases due to lapse of statute of limitations	—		—		—
End of year balance	$	1,900	$	1,900	$	1,500

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Supplemental Quarterly Information (Unaudited)

12 Months Ended

Dec. 31, 2013

Quarterly Financial Information Disclosure [Abstract]

Supplemental Quarterly Information (Unaudited)

SUPPLEMENTAL QUARTERLY INFORMATION (UNAUDITED)

The following table represents the significant items for the results of operations on a quarterly basis for the years ended December 31, 2013 and 2012:

	Three Months Ended March 31, 2013			Three Months Ended June 30, 2013			Three Months Ended September 30, 2013			Three Months Ended December 31, 2013
Revenues	$	264,368		$	384,735		$	458,444		$	390,591
Gross profit	86,695			50,181			57,849			44,708
Selling, general, and administrative expenses	9,644			11,226			12,686			12,567
Income from operations	77,051			38,955			45,163			32,141
Other income (expense), net	(459		)	(511		)	(511		)	(528		)
Net income	46,403			23,130			86,703			30,130
Net income per share attributable to common stockholders - basic	1.25			0.63			2.32			0.81
Net income per share attributable to common stockholders - diluted	1.25			0.62			2.31			0.80

	Three Months Ended March 31, 2012		Three Months Ended June 30, 2012			Three Months Ended September 30, 2012			Three Months Ended December 31, 2012
Revenues	$	188,247	$	271,927		$	322,912		$	231,948
Gross profit	17,034		30,949			2,791			7,549
Selling, general, and administrative expenses	12,962		11,014			9,902			8,544
Income (loss) from operations	4,072		19,935			(7,111		)	(995		)
Other income (expense), net	11,308		(1,031		)	(1,094		)	(1,371		)
Net income (loss)	14,017		14,433			(6,040		)	(151		)
Net income (loss) per share attributable to common stockholders - basic	1.60		0.39			(0.24		)	(0.03		)
Net income (loss) per share attributable to common stockholders - diluted	0.06		0.39			(0.24		)	(0.03		)

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Subsequent Events

12 Months Ended

Dec. 31, 2013

Subsequent Events [Abstract]

Subsequent Events

SUBSEQUENT EVENTS

On December 17, 2013, the Company and REG Synthetic Fuels, LLC, a wholly-owned subsidiary of the Company, entered into an Asset Purchase Agreement with Syntroleum Corporation (Syntroleum) to acquire substantially all assets, including all of Syntroleum's intellectual property and its 50% equity interest in Dynamic Fuels, LLC. As consideration for the asset sale, REG Synthetic Fuels will assume substantially all material assets and liabilities of Syntroleum and Syntroleum will receive 3,796,000 shares of the Company's common stock, subject to downward adjustment (based on the value of the Company's Common Stock at closing, as calculated under the Asset Purchase Agreement) to the extent that Syntroleum’s cash on hand at closing is less than $3,200; provided, that, if the per share value of the Company’s Common Stock at closing (as calculated under the Asset Purchase Agreement) is equal to or greater than $12.91, then the number of shares of the Company's common stock will be equal to (i) $49,000, divided by (ii) the Company's Common Stock value at closing (as calculated under the Asset Purchase Agreement). The closing of the transaction is conditioned upon Syntroleum’s receipt of the approval of the holders of a majority of Syntroleum’s outstanding shares of common stock and other specified closing conditions. Accordingly, this transaction is not reflected in the Company's financial statements as of December 31, 2013.

On January 22, 2014, REG Life Sciences, LLC, a wholly-owned subsidiary of the Company, acquired substantially all of the assets and certain liabilities of LS9, Inc. (LS9) as part of its strategy to expand into the production of renewable chemicals, additional advanced biofuels and other products. LS9 is a research and development stage company focused on harnessing the power of microbial fermentation to develop and produce renewable chemicals, fuels and other products. The assets acquired consist mainly of in-process research and development, intellectual property and fixed assets. The Company has not completed its initial accounting for this business combination as the valuation of the assets acquired and contingent consideration has not been finalized.

As consideration for the asset sale, LS9 received (i) $15,275 in cash and (ii) 2,230,559 shares of the Company’s Common Stock (LS9 Stock Consideration) and may receive over a six-year period earnout payments, if any, with a value of up to a maximum amount of $21,500 (LS9 Earnout Payments), subject to achievement of certain milestones related to the development and commercialization of products from LS9’s technology. Of the LS9 Stock Consideration, 541,288 shares will be held in escrow for 18 months and applied towards the indemnification obligations of LS9 and certain of its securityholders.

The Earnout Payments will be payable, at REG Life Sciences’ election, as follows: (i) by the delivery to LS9 of shares of the Company’s Common Stock equal to the amount of the applicable Earnout Payment divided by the average closing sales price of the Company’s Common Stock as reported on the NASDAQ Global Select Market for the 30-trading day period ending on the third trading day preceding the date of the applicable Earnout Payment, (ii) by delivery to LS9 by wire transfer of immediately available funds of an amount in dollars equal to the applicable Earnout Payment, or (iii) by delivery to LS9 of any combination of shares of the Company’s Common Stock and amounts in dollars.

On February 24, 2014, the Company’s Board of Directors authorized the Company, at management's discretion, to redeem all outstanding shares of Series B Preferred Stock. The Company plans to execute the cash redemption prior to the end of first quarter 2014.

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 186,366	$ 22,259	$ 88,869
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation expense	9,705	8,024	7,184
Amortization expense of assets and liabilities, net	(463)	(103)	2,291
Loss on disposal of property, plant and equipment	815	0	0
Provision for doubtful accounts	309	563	1,389
Stock compensation expense	5,416	13,119	5,934
(Income) from equity method investees	0	0	(442)
Deferred tax expense (benefit)	9,859	2,986	(4,967)
Change in fair value of preferred stock conversion feature embedded derivatives	0	(11,975)	(7,939)
Change in fair value of Seneca Holdco liability	0	(249)	1,497
Premium paid for Seneca Landlord investment	0	(7,063)	0
Expense settled with stock issuance	0	1,898	0
Forgiveness of note payable	0	0	(86)
Changes in asset and liabilities, net of effects from mergers and acquisitions:
Accounts receivable	(64,460)	32,014	(35,421)
Inventories	(40,608)	(3,096)	(13,047)
Prepaid expenses and other assets	(9,984)	(394)	(11,951)
Accounts payable	22,386	(4,002)	14,153
Accrued expenses and other liabilities	4,801	(2,614)	6,321
Deferred revenue	15,503	(6,748)	(2,591)
Net cash flows provided from operating activities	139,645	44,619	51,194
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash paid for purchase of property, plant and equipment	(39,053)	(12,654)	(4,806)
Cash proceeds from involuntary disposal of fixed assets	330	0	0
Change in restricted cash	0	(64)	2,664
Cash paid for investments	(4,733)	(37)	0
Consolidation of Bell, LLC	0	0	22
Cash paid for acquisitions	(10,933)	(1,791)	0
Net cash flows used in investing activities	(54,389)	(14,546)	(2,120)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings on line of credit	1,538,615	1,331,557	40,564
Repayments on line of credit	(1,527,629)	(1,335,592)	(46,079)
Cash received for issuance of note payable	3,000	0	10,000
Cash paid on notes payable	(10,999)	(44,509)	(20,695)
Cash paid for debt issuance costs	(203)	(138)	(1,443)
Repayment of investment in Seneca Landlord	0	(4,000)	0
Cash received from initial public offering	0	63,747	0
Cash paid for issuance of common stock and preferred stock	(25)	(1,699)	(2,153)
Cash received upon exercise of warrant	0	0	48
Cash paid for treasury stock	(282)	(3,074)	0
Cash paid for preferred stock dividends	(1,291)	(3,155)	0
Net cash flows provided from (used in) financing activities	1,186	3,137	(19,758)
NET CHANGE IN CASH AND CASH EQUIVALENTS	86,442	33,210	29,316
CASH AND CASH EQUIVALENTS, Beginning of period	66,785	33,575	4,259
CASH AND CASH EQUIVALENTS, End of period	153,227	66,785	33,575
SUPPLEMENTAL DISCLOSURES OF CASH FLOWS INFORMATION:
Cash paid (received) for income taxes	(7,475)	3,537	(7,172)
Cash paid for interest	2,336	3,984	5,418
SUPPLEMENTAL DISCLOSURE OF NON-CASH INVESTING AND FINANCING ACTIVITIES:
Effects of recapitalization	0	39,107	0
Accretion of preferred stock to redemption value	0	1,808	25,343
Common stock repurchased included in accrued expenses and other liabilities	529	124	398
Amounts included in period-end accounts payable for:
Purchases of property, plant and equipment	2,037	3,884	898
Debt issuance costs	16	48	85
Equity issuance costs	89		999
Incentive common stock liability for supply agreement	583	423	1,469
Removal of equity method investee as a result of consolidation			1,613
Issuance of common stock per exercise of Seneca Landlord put/call option		591
Issuance of common stock for dividends	764	1
In-kind contribution through acquisition		1,336
Issuance of note payable for acquisition	$ 5,135

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Schedule I - Financial Information of Parent Company

12 Months Ended

Dec. 31, 2013

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Schedule I - Financial Information of Parent Company

RENEWABLE ENERGY GROUP, INC.

FINANCIAL INFORMATION OF PARENT COMPANY

CONDENSED BALANCE SHEETS

AS OF DECEMBER 31, 2013 AND 2012

(IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

	2013			2012
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	1,581		$	11,287
Notes receivable	—			8,618
Deferred income taxes	7,018			—
Prepaid expenses and other assets	2,668			5,518
Total current assets	11,267			25,423
Property, plant and equipment, net	3,823			2,193
Intangible assets, net	4,749			4,476
Investment in subsidiaries	614,330			403,549
Intercompany receivables	1,177			721
Long term note receivables	—			14,093
Other assets	122			11
TOTAL ASSETS	$	635,468		$	450,466
LIABILITIES AND EQUITY
CURRENT LIABILITIES:
Accounts payable	$	2,083		$	3,799
Accrued expenses	2,728			1,392
Deferred income taxes	—			529
Total current liabilities	4,811			5,720
Deferred income taxes	32,624			36,939
Total liabilities	37,435			42,659
COMMITMENTS AND CONTINGENCIES
SERIES B PREFERRED STOCK ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, respectively; redemption amount $3,583 and $74,878, respectively)	3,963			83,043
EQUITY:
Company stockholders' equity:
Common stock ($.0001 par value; 300,000,000 shares authorized; 36,506,221 and 30,559,935 shares outstanding, respectively)	4			3
Common stock - additional paid-in-capital	359,671			273,989
Warrants - additional paid-in-capital	147			147
Retained earnings	238,134			53,823
Treasury stock (530,898 and 462,985 shares outstanding, respectively)	(3,886		)	(3,198		)
Total stockholders' equity	594,070			324,764
TOTAL LIABILITIES AND EQUITY	$	635,468		$	450,466

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements elsewhere herein.

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

FINANCIAL INFORMATION OF PARENT COMPANY

CONDENSED STATEMENTS OF OPERATIONS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS)

	2013			2012			2011
Equity in earnings of subsidiaries of continuing operations	$	178,100		$	20,071		$	98,432
Income from services provided to subsidiaries	4,760			5,138			500
Total income	182,860			25,209			98,932
General and administrative expenses	(17,404		)	(25,473		)	(13,019		)
Change in fair value of preferred stock conversion feature embedded derivatives	—			11,975			7,939
Change in fair value of Seneca Holdco liability	—			349			(2,097		)
Other income	39			109			35
Interest expense	(2		)	(199		)	(14		)
Interest income	1,504			414			134
Income before income taxes and income (loss) from equity investments	166,997			12,384			91,910
Income tax benefit (expense)	19,369			9,804			(2,982		)
Income (loss) from equity investments	—			71			(59		)
Net income	186,366			22,259			88,869
Effects of recapitalization	—			39,107			—
Less - accretion of Series A preferred stock to redemption value	—			(1,808		)	(25,343		)
Less - changes in undistributed dividends allocated to preferred stockholders	—			(823		)	(12,723		)
Less - distributed dividends to preferred stockholders	(2,055		)	(3,156		)	—
Less - effects of participating preferred stock	(16,272		)	(8,952		)	(4,186		)
Less - effect of participating share-based awards	(2,785		)	(3,145		)	(3,864		)
Net income attributable to the company's common stockholders	$	165,254		$	43,482		$	42,753

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements elsewhere herein.

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

FINANCIAL INFORMATION OF PARENT COMPANY

CONDENSED STATEMENTS OF CASH FLOWS

FOR THE YEARS ENDED DECEMBER 31, 2013, 2012 AND 2011

(IN THOUSANDS)

	2013			2012			2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	186,366		$	22,259		$	88,869
Adjustments to reconcile net income to net cash flows from operating activities:
Equity in earnings of continuing operations	(178,100		)	(20,071		)	(98,432		)
Depreciation expense	255			157			410
Amortization expense	314			240			189
Provision for doubtful accounts	—			12			—
Stock compensation expense	5,416			13,119			5,934
(Income) loss from equity method investees	—			(71		)	59
Deferred tax benefit	(12,239		)	(7,794		)	(4,967		)
Change in fair value of preferred stock conversion feature embedded derivatives	—			(11,975		)	(7,939		)
Change in fair value of Seneca Holdco liability	—			(249		)	2,097
Expense settled with stock issuance	—			1,898			—
Dividends received from subsidiary	162,969			—			6,802
Premium paid for Seneca Landlord investment	—			(7,063		)	—
Changes in asset and liabilities, net of effects from mergers and acquisitions:
Accounts receivable	(514		)	675			(564		)
Prepaid expenses and other assets	2,849			(4,978		)	(204		)
Accounts payable	(1,246		)	2,254			674
Accrued expenses	770			(973		)	1,818
Net cash flows provided from (used in) operating activities	166,840			(12,560		)	(5,254		)
CASH FLOWS FROM INVESTING ACTIVITIES:
Change in investments in subsidiaries	(153,343		)	(352		)	(158		)
Cash paid for purchase of property, plant and equipment	(2,444		)	(666		)	(679		)
Cash paid for acquisitions	(10,933		)	(1,647		)	—
Net cash flows used in investing activities	(166,720		)	(2,665		)	(837		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Cash paid on note receivable to subsidiaries	(35,982		)	(22,711		)	(1,482		)
Cash received on note receivable from subsidiaries	27,754			—			4,671
Cash paid on note payable from subsidiaries	—			(3,846		)	—
Cash received on note payable from subsidiaries	—			1,250			2,596
Repayment of investment in Seneca Landlord	—			(4,000		)	—
Cash received upon exercise of warrants	—			—			48
Cash received from initial public offering	—			63,747			—
Cash paid for issuance cost of common and preferred stock	(25		)	(1,699		)	(1,199		)
Cash paid for treasury stock	(282		)	(3,074		)	—
Cash paid for preferred stock dividends	(1,291		)	(3,155		)	—
Net cash flows provided from (used in) financing activities	(9,826		)	26,512			4,634
NET CHANGE IN CASH AND CASH EQUIVALENTS	(9,706		)	11,287			(1,457		)
CASH AND CASH EQUIVALENTS, Beginning of period	11,287			—			1,457
CASH AND CASH EQUIVALENTS, End of period	$	1,581		$	11,287		$	—

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements elsewhere herein.

SCHEDULE I

RENEWABLE ENERGY GROUP, INC.

NOTES TO THE CONDENSED FINANCIAL STATEMENTS OF PARENT COMPANY

For The Three Years Ended December 31, 2013, 2012 and 2011

NOTE 1—BASIS OF PRESENTATION

The accompanying condensed financial statements (the Parent Company Financial Statements) of Renewable Energy Group, Inc., including the notes thereto, should be read in conjunction with the consolidated financial statements of Renewable Energy Group, Inc. and subsidiaries (the Company) and the notes thereto. The condensed financial statements and notes thereto are presented in accordance with the rules and regulations of the Securities and Exchange Commission (the SEC) and do not contain certain information included in the Company’s Annual Report to Shareholders for the fiscal year ended December 31, 2013.

The condensed financial information of Renewable Energy Group, Inc. includes only the financial information for the Registrant, Renewable Energy Group, Inc., excluding all of its consolidated subsidiaries. The accompanying financial statement information reflects the financial position, results of operations and cash flows of the Registrant on a separate, parent company basis. All subsidiaries of Renewable Energy Group, Inc. are reflected as investments accounted for using the equity method. In accordance with Rule 12-04 of Regulation S-X, these parent-only financial statements do not include all of the information and footnotes required by Generally Accepted Accounting Principles (GAAP) in the United States (U.S.) for annual financial statements. Because these parent-only financial statements and notes do not include all of the information and footnotes required by GAAP in the U.S. for annual financial statements, these parent-only financial statements and other information included should be read in conjunction with Renewable Energy Group, Inc.’s audited Consolidated Financial Statements for the year ended December 31, 2013. The schedule is required based upon the limitations on dividends and distributions that its subsidiaries can make to the Registrant under the terms of their debt agreements as described in the Note 12 — Borrowings to the consolidated financial statements.

The preparation of the Parent Company Financial Statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts and disclosures in the condensed financial statements and accompanying notes. Actual results could differ materially from those estimates.

NOTE 2—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

See notes to the Renewable Energy Group, Inc. and subsidiaries consolidated financial statements for additional accounting policies.

NOTE 3—INCOME TAXES

The Parent Company Financial Statements recognizes deferred tax assets and liabilities for the differences between the financial reporting and tax basis assets and liabilities at the financial statement date using enacted tax rates expected to be in effect in the year the differences are expected to reverse. The Parent Company Financial Statements are included in the Company’s consolidated income tax return. However, the Parent Company Financial Statement’s income tax assets and liabilities are computed on a stand-alone basis.

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Borrowings - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Company's borrowings
Total notes payable	$ 30,151	$ 32,731
REG Danville term loan
Company's borrowings
Total notes payable	5,626	10,060
REG Newton term loan
Company's borrowings
Total notes payable	18,143	21,175
REG Mason City term loan
Company's borrowings
Total notes payable	5,135	0
Other
Company's borrowings
Total notes payable	1,247	1,496
Bell, LLC promissory note | Variable Interest Entity
Company's borrowings
Total notes payable	$ 4,029	$ 4,313

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Subsequent Events - (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended			1 Months Ended
	Dec. 17, 2013 Syntroleum Corporation	Dec. 17, 2013 Syntroleum Corporation Dynamic Fuels, LLC	Dec. 07, 2013 Syntroleum Corporation Downward Adjustment	Jan. 22, 2014 LS9, Inc Subsequent Event	Jan. 22, 2014 LS9, Inc Held In Escrow Subsequent Event
Subsequent Event [Line Items]
Interest acquired		50.00%
Shares issued in business combination	3,796,000			2,230,559	541,288
Earnout Payments				$ 21,500
Cash received			3,200	15,275
Share price			$ 12.91
Issuable stock, benchmark for contingently issuable shares			$ 49,000
Period held in escrow					18 months

XML

Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Components of Intangible assets

Amortizing intangible assets consist of the following at December 31:

	2013			2012
Raw material supply agreement intangibles	$	5,502		$	4,919
Ground lease	200			200
Accumulated amortization	(835		)	(510		)
Total intangible assets	$	4,867		$	4,609

Estimated amortization expense

Estimated amortization expense for fiscal years ended December 31 is as follows:

2014	$	418
2015	479
2016	492
2017	506
2018	521
Thereafter	2,451
Total	$	4,867

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Organization, Presentation, and Nature of the Business - (Details)	12 Months Ended								12 Months Ended
	Dec. 31, 2013 facility gal	Dec. 31, 2007 facility	Dec. 31, 2008 Louisiana	Dec. 31, 2007 Louisiana gal	Dec. 31, 2008 Kansas	Dec. 31, 2007 Kansas gal	Dec. 31, 2010 New Mexico gal	Nov. 30, 2012 Georgia gal	Dec. 31, 2013 Construction in Progress facility
Organization, Presentation, and Nature of the Business (Textual) [Abstract]
Number of operating biodiesel production facilities	8	2							3
Number of non-operating biodiesel production facilities	1
Production capacity per year	257,000,000			60,000,000		60,000,000	15,000,000	15,000,000
Percentage of production capacity facility completed			45.00%		20.00%		50.00%
Tax Credit Expiration Date	Dec. 31, 2013

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Variable Interest Entities - (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Promissory Note	Dec. 31, 2011 Promissory Note	Jan. 02, 2011 Promissory Note
Variable Interest Entity [Line Items]
Percentage of ownership	50.00%
Notes payable	$ 23,422	$ 27,776		$ 4,757
Interest accrued monthly rate					5.70%
Maturity date	Feb. 15, 2013
Current interest rate			3.50%
Current Maturity date	Jan. 14, 2018

XML

Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 153,227	$ 66,785
Accounts receivable, net (includes amounts owed by related parties of $426 and $771, respectively)	82,911	18,768
Inventories	85,814	45,206
Deferred income taxes	0	2,512
Prepaid expenses and other assets	25,568	15,812
Total current assets	347,520	149,083
Property, plant and equipment, net	286,044	242,885
Property, plant and equipment, net—variable interest entities	5,180	5,405
Goodwill	84,864	84,864
Intangible assets, net	4,867	4,609
Deferred income taxes		969
Investments	7,351	2,618
Other assets (includes amounts owed by related party of $35 and $692, respectively)	5,029	5,351
TOTAL ASSETS	740,855	495,784
CURRENT LIABILITIES:
Revolving line of credit	10,986	0
Current maturities of notes payable	6,729	4,955
Current maturities of notes payable—variable interest entities	300	283
Accounts payable (includes amounts owed to related parties of $552 and $2,950, respectively)	48,727	28,131
Accrued expenses and other liabilities	12,305	6,475
Deferred income taxes	3,687	0
Deferred revenue	15,503	0
Total current liabilities	98,237	39,844
Unfavorable lease obligation	7,905	9,035
Deferred income taxes	(2,691)	0
Notes payable	23,422	27,776
Notes payable—variable interest entities	3,729	4,030
Other liabilities	6,838	7,292
Total liabilities	142,822	87,977
COMMITMENTS AND CONTINGENCIES (NOTE 21)
Company stockholders’ equity:
Common stock ($.0001 par value; 300,000,000 shares authorized; 36,506,221 and 30,559,935 shares outstanding, respectively)	4	3
Common stock—additional paid-in-capital	359,671	273,989
Warrants—additional paid-in-capital	147	147
Retained earnings	238,134	53,823
Treasury stock (530,898 and 462,985 shares, respectively)	(3,886)	(3,198)
Total equity	594,070	324,764
TOTAL LIABILITIES AND EQUITY	740,855	495,784
Series B Preferred Stock
CURRENT LIABILITIES:
Series B Preferred Stock ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, redemption amount $3,583 and $74,878, respectively)	$ 3,963	$ 83,043

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Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Common Stock options granted, exercised, forfeited, vested and exercisable

The following table summarizes information about Common Stock options granted, exercised, forfeited, vested and exercisable:

	Number of Options		Weighted  Average Exercise Price	Weighted Average Contractual Term
Options outstanding - January 1, 2011	87,526		23.75	5.6 years
Granted	—
Exercised	—
Forfeited	(500	)	23.75
Options outstanding - December 31, 2011	87,026		23.75	4.6 years
Granted	—
Exercised	—
Forfeited	—
Options outstanding - December 31, 2012	87,026		23.75	3.6 years
Granted	—
Exercised	—
Forfeited	—
Options outstanding - December 31, 2013	87,026		23.75	2.6 years
Options exercisable - December 31, 2013	87,026		23.75	2.6 years

Summary about the Company's Common Stock restricted stock units granted, vested, exercised and forfeited

The following table summarizes information about the Company’s Common Stock RSU’s granted, vested, exercised and forfeited:

	Number of Awards		Weighted Average Issue Price
Awards outstanding - January 1, 2011	1,154,086			$12.50
Issued	299,033			$33.75
Vested and restriction lapsed	(50,000	)		$33.75
Forfeited	(6,400	)		$12.53
Awards outstanding - December 31, 2011	1,396,719			$16.29
Issued	411,456			$8.93
Vested and restriction lapsed	(1,294,519	)		$13.65
Forfeited	(8,040	)		$10.51
Awards outstanding - December 31, 2012	505,616			$17.14
Issued	204,183			$11.96
Vested and restriction lapsed	(192,190	)		$15.72
Forfeited	(16,681	)		$9.98
Awards outstanding - December 31, 2013	500,928			$15.81

Summary about the stock appreciate rights granted, forfeited, vested and exercisable

The following table summarizes information about SAR’s granted, forfeited, vested and exercisable:

	Number of SAR’s		Weighted  Average Exercise Price	Weighted Average Contractual Term
SAR's outstanding - January 1, 2012	—
Granted	1,055,805		9.47
Exercised	—
Forfeited	(1,960	)	9.19
SAR's outstanding - December 31, 2012	1,053,845		9.47	9.3 years
Granted	335,057		12.85
Exercised	(5,106	)	8.92
Forfeited	(10,727	)	10.85
SAR's outstanding - December 31, 2013	1,373,069		10.28	8.6 years
SAR's exercisable - December 31, 2013	250,370		9.49	8.6 years
SAR's expected to vest - December 31, 2013	1,136,280		10.45	8.6 years

Assumptions for Black-Scholes options pricing model/Estimated fair value of SAR grant using Black-Scholes options pricing model

The fair value of each SAR grant is estimated using the Black-Scholes option-pricing model as set forth in the table below:

	2013	2012
The weighted average fair value of stock appreciation rights issued (per unit)	$2.54 - $6.51	$2.73 - $3.99
Dividend yield	—%	—%
Weighted average risk-free interest rate	0.7% - 1.8%	0.7% - 0.9%
Weighted average expected volatility	40%	40%
Expected life in years	6.25	6.25

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Stock-Based Compensation - Fair Value of SAR Frants Using Black-Scholes Option-Pricing Model (Details) (Stock appreciation rights, Black Scholes, USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Estimated fair value of SAR grant using Black-Scholes options pricing model
Dividend yield	0.00%	0.00%
Weighted average expected volatility	40.00%	40.00%
Expected life in years	6 years 3 months	6 years 3 months
Minimum
Estimated fair value of SAR grant using Black-Scholes options pricing model
The weighted average fair value of stock appreciation rights issued (per unit)	$ 2.54	$ 2.73
Weighted average risk-free interest rate, Minimum	0.70%	0.70%
Maximum
Estimated fair value of SAR grant using Black-Scholes options pricing model
The weighted average fair value of stock appreciation rights issued (per unit)	$ 6.51	$ 3.99
Weighted average risk-free interest rate, Maximum	1.80%	0.90%

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Supplemental Quarterly Information (Unaudited) - (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Significant items for the results of operations on a quarterly basis
Revenues	$ 390,591	$ 458,444	$ 384,735	$ 264,368	$ 231,948	$ 322,912	$ 271,927	$ 188,247	$ 1,498,138	$ 1,015,034	$ 824,031
Gross profit	44,708	57,849	50,181	86,695	7,549	2,791	30,949	17,034	239,433	58,323	127,211
Selling, general, and administrative expenses	12,567	12,686	11,226	9,644	8,544	9,902	11,014	12,962	46,123	42,422	34,479
Income from operations	32,141	45,163	38,955	77,051	(995)	(7,111)	19,935	4,072	193,310	15,901	92,732
Other income (expense), net	(528)	(511)	(511)	(459)	(1,371)	(1,094)	(1,031)	11,308	(2,009)	7,812	(1,323)
Net income	$ 30,130	$ 86,703	$ 23,130	$ 46,403	$ (151)	$ (6,040)	$ 14,433	$ 14,017	$ 186,366	$ 22,259	$ 88,869
Net income per share attributable to common stockholders - basic	$ 0.81	$ 2.32	$ 0.63	$ 1.25	$ (0.03)	$ (0.24)	$ 0.39	$ 1.60	$ 5.00	$ 1.53	$ 3.14
Net income per share attributable to common stockholders - diluted	$ 0.80	$ 2.31	$ 0.62	$ 1.25	$ (0.03)	$ (0.24)	$ 0.39	$ 0.06	$ 5.00	$ 0.27	$ 3.14

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Consolidated Statements of Redeemable Preferred Stock and Equity Statement (USD $) In Thousands, except Share data, unless otherwise specified	Total USD ($)	Initial public offering USD ($)	Series A Preferred Stock USD ($)	Series B Preferred Stock USD ($)	Series B Preferred Stock Initial public offering	Redeemable Preferred Stock USD ($)	Redeemable Preferred Stock Initial public offering USD ($)	Redeemable Preferred Stock Series A Preferred Stock USD ($)	Redeemable Preferred Stock Series B Preferred Stock USD ($)	Common Stock USD ($)	Common Stock Initial public offering USD ($)	Common Stock Series A Preferred Stock USD ($)	Common Stock Series B Preferred Stock USD ($)	Class A Common Stock USD ($)	Class A Common Stock Initial public offering USD ($)	Class A Common Stock Series A Preferred Stock USD ($)	Class A Common Stock Series B Preferred Stock USD ($)	Common Stock- Additional Paid-in Capital USD ($)	Common Stock- Additional Paid-in Capital Initial public offering USD ($)	Common Stock- Additional Paid-in Capital Series A Preferred Stock USD ($)	Common Stock- Additional Paid-in Capital Series B Preferred Stock USD ($)	Warrants- Additional Paid-in Capital USD ($)	Warrants- Additional Paid-in Capital Initial public offering USD ($)	Warrants- Additional Paid-in Capital Series A Preferred Stock USD ($)	Warrants- Additional Paid-in Capital Series B Preferred Stock USD ($)	Retained Earnings USD ($)	Retained Earnings Initial public offering USD ($)	Retained Earnings Series A Preferred Stock USD ($)	Retained Earnings Series B Preferred Stock USD ($)	Treasury Stock USD ($)	Treasury Stock Initial public offering USD ($)	Treasury Stock Series A Preferred Stock USD ($)	Treasury Stock Series B Preferred Stock USD ($)
Beginning Balance at Dec. 31, 2010	$ 35,116					$ 122,436								$ 1				$ 82,636				$ 4,820				$ (52,341)
Beginning Balance, Shares at Dec. 31, 2010						13,455,522								13,251,264
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in acquisition	16,350																	16,350
Issuance of common stock in acquisition, Shares														673,544
Stock compensation expense	5,934																	5,934
Warrants exercised	48																	128				(80)
Warrants exercised, Shares														8,383
Warrants expired																		1,042				(1,042)
Purchase of treasury stock related to restricted stock unit conversion	(398)																													(398)
Purchase of treasury stock related to restricted stock unit conversion, Shares														(21,036)
Conversion of restricted stock issuance, Shares														(50,000)
Accretion of preferred stock to redemption value	(25,343)					25,343												(25,343)
Net income	88,869																									88,869
Ending Balance at Dec. 31, 2011	120,576					147,779								1				80,747				3,698				36,528				(398)
Ending Balance, Shares at Dec. 31, 2011						13,455,522								13,962,155
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in acquisition	4,329																	4,329
Issuance of common stock in acquisition, Shares										900,000
Derecognition of Series A Preferred Stock								149,587
Derecognition of Series A Preferred Stock, Shares								(13,455,522)
Conversion of Class A common stock/Series B Preferred Stock to common stock				122					(122)	2				(2)							123								(1)
Conversion of Class A common stock/Series B Preferred Stock to common stock, Shares									(4,387)	21,598,408			8,957	(21,598,408)
Issuance of common stock in initial public offering, net of issuance cost of $8,892		59,919									1								59,918
Issuance of common stock in initial public offering, net of issuance cost of $8,892, Shares											(7,200,000)				(342,860)
Issuance of common stock	3,958			108,245					83,165								1	3,958			111,795				(3,551)
Issuance of common stock, Shares				7,660,612					2,999,493					318,501
Stock compensation expense	13,119																	13,119
Purchase of treasury stock related to restricted stock unit conversion	(2,800)																													(2,800)
Purchase of treasury stock related to restricted stock unit conversion, Shares	(441,949,000)
Conversion of restricted stock issuance, Shares										(852,570)
Accretion of preferred stock to redemption value			(1,808)					1,808																				(1,808)
Series B preferred stock dividends paid				(3,155)																									(3,155)
Net income	22,259																									22,259
Ending Balance at Dec. 31, 2012	324,764					83,043				3								273,989				147				53,823				(3,198)
Ending Balance, Shares at Dec. 31, 2012						2,995,106				30,559,935
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Conversion of Class A common stock/Series B Preferred Stock to common stock	79,844					(79,080)				1								79,843
Conversion of Class A common stock/Series B Preferred Stock to common stock, Shares						(2,851,793)				5,763,508
Issuance of common stock	423																	423
Issuance of common stock, Shares										58,501
Stock compensation expense	5,416																	5,416
Purchase of treasury stock related to restricted stock unit conversion	(688)																													(688)
Purchase of treasury stock related to restricted stock unit conversion, Shares	(67,913)
Conversion of restricted stock issuance, Shares										(124,277)
Series B preferred stock dividends paid	(2,055)																									(2,055)
Net income	186,366																									186,366
Ending Balance at Dec. 31, 2013	$ 594,070					$ 3,963				$ 4				$ 0				$ 359,671				$ 147				$ 238,134				$ (3,886)
Ending Balance, Shares at Dec. 31, 2013						143,313				36,506,221

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Stock-Based Compensation - Restricted Stock Units (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Common Stock options granted, exercised, forfeited, vested and exercisable
Number of Awards outstanding, Ending Balance			0
Restricted stock units
Common Stock options granted, exercised, forfeited, vested and exercisable
Number of Awards outstanding, Beginning Balance	505,616.000	1,396,719.000	1,154,086
Number of Awards, Issued	204,183	411,456	299,033
Number of Awards, Vest and restriction lapsed	(192,190)	(1,294,519)	(50,000)
Number of Awards, Forfeited	(16,681)	(8,040)	(6,400)
Number of Awards outstanding, Ending Balance	500,928.000	505,616.000	1,396,719.000
Weighted Average Issue Price, Awards outstanding, Beginning Balance	$ 17.14	$ 16.29	$ 12.50
Weighted Average Issue Price, Issued	$ 11.96	$ 8.93	$ 33.75
Weighted Average Issue Price, Vested and restriction lapsed	$ 15.72	$ 13.65	$ 33.75
Weighted Average Issue Price, Forfeited	$ 9.98	$ 10.51	$ 12.53
Weighted Average Issue Price, Awards outstanding, Ending Balance	$ 15.81	$ 17.14	$ 16.29

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Stockholders' Equity of the Company - (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Summary of the number of shares reserved for the exercise of common stock purchase warrants
Exercise Price Per Share	11.16
Blackhawk warrant holders
Summary of the number of shares reserved for the exercise of common stock purchase warrants
Issuance Date	Feb. 26, 2010
Expiration Date	Feb. 25, 2015
Exercise Price Per Share	11.16
Warrants Outstanding	17,916	17,916

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Related Party Transactions - Summary of Related Party Balances - Consolidated Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of Related Party Balances
Accounts receivable	$ 426	$ 771
Other assets	35	692
Accounts payable	552	2,950
West Central
Summary of Related Party Balances
Accounts receivable	426	771
Other assets	35	692
Accounts payable	$ 552	$ 2,950

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Stockholders' Equity of the Company (Tables)

12 Months Ended

Dec. 31, 2013

Stockholders' Equity Attributable to Parent [Abstract]

Summary of the number of shares reserved for the exercise of common stock purchase warrants

The following table summarizes the number of shares reserved for the exercise of common stock purchase warrants as of December 31:

Issued to	Issuance Date	Expiration Date	Exercise Price Per Share		Warrants Outstanding 2013	Warrants Outstanding 2012
Blackhawk warrant holders	February 26, 2010	February 25, 2015	$	11.16	17,916	17,916

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Acquisitions and Equity Transactions - North Texas Bio Energy, LLC Purchase Price Allocation (Details) (North Texas Bio Energy, LLC, USD $) In Thousands, unless otherwise specified	Oct. 26, 2012
North Texas Bio Energy, LLC
Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition
Other current assets	$ 17
Property, plant and equipment	(4,636)
Fair value of common stock issued	$ 4,653

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Stock-Based Compensation

12 Months Ended

Dec. 31, 2013

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

STOCK-BASED COMPENSATION

On October 26, 2011, the stockholders approved the 2009 Stock Incentive Plan (the 2009 Plan) which authorizes up to 4,160,000 shares of Company Common Stock to be issued for the award of restricted stock, restricted stock units (RSU’s) and stock appreciation rights (SAR’s) at the discretion of the Company Board as compensation to employees, consultants of the Company and to non-employee directors. The expense is measured at the grant-date fair value of the award and recognized as compensation expense on a straight-line basis over the service period, which is the vesting period. There was no cash flow impact resulting from the grants of these awards. The 2009 Plan is generally protected from anti-dilution via adjustments for any stock dividends, stock split, combination or other recapitalization.

The Company recorded stock-based compensation expense of $5,416, $13,119 and $5,934 for the years ended December 31, 2013, 2012 and 2011, respectively. The stock-based compensation costs were included as a component of selling, general and administrative expenses. At December 31, 2013, there was $7,655 of unrecognized compensation expense related to unvested awards, which is expected to be recognized over a period of approximately 3.7 years.

Stock Options

The following table summarizes information about Common Stock options granted, exercised, forfeited, vested and exercisable:

	Number of Options		Weighted  Average Exercise Price	Weighted Average Contractual Term
Options outstanding - January 1, 2011	87,526		23.75	5.6 years
Granted	—
Exercised	—
Forfeited	(500	)	23.75
Options outstanding - December 31, 2011	87,026		23.75	4.6 years
Granted	—
Exercised	—
Forfeited	—
Options outstanding - December 31, 2012	87,026		23.75	3.6 years
Granted	—
Exercised	—
Forfeited	—
Options outstanding - December 31, 2013	87,026		23.75	2.6 years
Options exercisable - December 31, 2013	87,026		23.75	2.6 years

All stock options that remain outstanding are fully vested and exercisable. There was no intrinsic value of options granted, exercised or outstanding during the periods presented.

Restricted Stock Units

The following table summarizes information about the Company’s Common Stock RSU’s granted, vested, exercised and forfeited:

	Number of Awards		Weighted Average Issue Price
Awards outstanding - January 1, 2011	1,154,086			$12.50
Issued	299,033			$33.75
Vested and restriction lapsed	(50,000	)		$33.75
Forfeited	(6,400	)		$12.53
Awards outstanding - December 31, 2011	1,396,719			$16.29
Issued	411,456			$8.93
Vested and restriction lapsed	(1,294,519	)		$13.65
Forfeited	(8,040	)		$10.51
Awards outstanding - December 31, 2012	505,616			$17.14
Issued	204,183			$11.96
Vested and restriction lapsed	(192,190	)		$15.72
Forfeited	(16,681	)		$9.98
Awards outstanding - December 31, 2013	500,928			$15.81

The RSU’s convert into one share of common stock upon vesting. RSU’s cliff vest at the earlier of expressly provided service or performance conditions. The service period for these RSU awards, excluding those issued to the Company’s Board of Directors (one year) and certain executive management (four year), is a three year period from the grant date. The performance conditions provide for accelerated vesting upon various conditions including a change in control or other common stock liquidity events. As a result of the Company’s IPO on January 24, 2012 (see “Note 3— Stockholders’ Equity of the Company”) a common stock liquidity-related performance condition was satisfied and 1,294,519 shares vested in relation to this event during 2012.

Stock Appreciation Rights

The following table summarizes information about SAR’s granted, forfeited, vested and exercisable:

	Number of SAR’s		Weighted  Average Exercise Price	Weighted Average Contractual Term
SAR's outstanding - January 1, 2012	—
Granted	1,055,805		9.47
Exercised	—
Forfeited	(1,960	)	9.19
SAR's outstanding - December 31, 2012	1,053,845		9.47	9.3 years
Granted	335,057		12.85
Exercised	(5,106	)	8.92
Forfeited	(10,727	)	10.85
SAR's outstanding - December 31, 2013	1,373,069		10.28	8.6 years
SAR's exercisable - December 31, 2013	250,370		9.49	8.6 years
SAR's expected to vest - December 31, 2013	1,136,280		10.45	8.6 years

The SAR’s vest 25% annually on each of the four anniversary dates following the grant date and expire after ten years. The fair value of each SAR grant is estimated using the Black-Scholes option-pricing model as set forth in the table below:

	2013	2012
The weighted average fair value of stock appreciation rights issued (per unit)	$2.54 - $6.51	$2.73 - $3.99
Dividend yield	—%	—%
Weighted average risk-free interest rate	0.7% - 1.8%	0.7% - 0.9%
Weighted average expected volatility	40%	40%
Expected life in years	6.25	6.25

There was no intrinsic value of options granted, exercised or outstanding during the periods presented.

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Acquisitions and Equity Transactions (Tables)

12 Months Ended

Dec. 31, 2013

SoyMor Biodiesel, LLC

Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition

The following table summarized the allocation of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition:

	Allocation at July 12, 2011
Assets (liabilities) acquired:
Inventory	$	78
Property, plant and equipment	18,886
Debt	(1,001		)
Fair value of investment prior to allocation	(1,613		)
Fair value of common stock issued	$	16,350

Summary of acquisition price

The acquisition price is summarized as follows:

	Value at July 12, 2011
	Fair Value		Fair Value per Share
Fair value of stock issued:
Common Stock	$	16,350	$	24.28

Seneca Landlord, LLC

Summary of acquisition price

A summary of the acquisition price is as follows:

	Value at January 24, 2012
	Fair Value		Fair Value per Share
Fair value of consideration issued:
Cash	$	11,063
Class A Common Stock	591		$	9.85
Total	$	11,654

North Texas Bio Energy, LLC

Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition

The following table summarized the allocation of the purchase price to the fair values of the assets acquired at the date of acquisition:

	Allocation at October 26, 2012
Assets acquired:
Other current assets	$	17
Property, plant and equipment	4,636
Fair value of common stock issued	$	4,653

Summary of acquisition price

The acquisition price is summarized as follows:

	Value at October 26, 2012
	Fair Value		Fair Value per Share
Fair value of consideration issued:
Cash	$	324
Class A Common Stock	4,329		$	4.81
Total	$	4,653

BullDog Biodiesel, LLC

Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition

The following table summarized the allocation of the purchase price to the fair values of the assets acquired at the date of acquisition:

	Allocation at November 16, 2012
Assets acquired:
Other current assets	$	13
Property, plant and equipment	2,646
Total	$	2,659

Summary of acquisition price

The acquisition price is summarized as follows:

	Value at November 16, 2012
Fair value of consideration issued:
Cash	$	1,323
In-kind contribution	1,336
Total	$	2,659

Soy Energy, LLC

Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition

Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition.

The allocation of the purchase price to the fair values of the assets acquired at the date of acquisition is as follows:

	Allocation at July 30, 2013
Assets (liabilities) acquired:
Property, plant and equipment	$	16,085
Other current liabilities	(17		)
Total	$	16,068

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Related Party Transactions - Summary of Related Party Transactions - Consolidated Statements of Operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary of Related Party Transactions
Revenues - Biodiesel sales	$ 0	$ 6	$ 5,161
Cost of goods sold - Biodiesel	49,358	54,364	263,562
Selling, general, and administrative expenses	37	158	1,505
Interest expense	30	32	761
West Central
Summary of Related Party Transactions
Revenues - Biodiesel sales	0	6	11
Cost of goods sold - Biodiesel	49,358	50,415	48,510
Selling, general, and administrative expenses	37	45	102
Interest expense	30	23	96
Bunge
Summary of Related Party Transactions
Revenues - Biodiesel sales	0	0	2,124
Cost of goods sold - Biodiesel	0	3,949	203,092
Selling, general, and administrative expenses	0	113	1,403
Interest expense	0	9	308
ED & F Man
Summary of Related Party Transactions
Revenues - Biodiesel sales	0	0	3,026
Cost of goods sold - Biodiesel	0	0	11,960
USRG
Summary of Related Party Transactions
Interest expense	$ 0	$ 0	$ 357

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Operating Leases

12 Months Ended

Dec. 31, 2013

Leases, Operating [Abstract]

Operating Leases

OPERATING LEASES

The Company leases certain land and equipment under operating leases. Total rent expense under operating leases was $12,549, $11,114 and $7,299 for the years ended December 31, 2013, 2012 and 2011, respectively. For each of the next five calendar years and thereafter, future minimum lease payments under operating leases that have initial or remaining noncancelable lease terms in excess of one year are as follows:

	Total Payments
2014	$	11,948
2015	9,401
2016	8,856
2017	8,339
2018	8,001
Thereafter	30,243
Total minimum payments	$	76,788

The Company's leases consist primarily of access to distribution terminals, biodiesel storage facilities, railcars and vehicles. At the end of the lease term the Company, generally, has the option to (a) return the leased equipment to the lessor, (b) purchase the property at its then fair value or (c) renew its lease at the then fair rental value on a year-to-year basis or for an agreed upon term. Certain leases allow for adjustment to minimum rentals in future periods as determined by the Consumer Price Index.

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Acquisitions and Equity Transactions - BullDog Biodiesel, LLC Acquisition Price (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Nov. 16, 2012 BullDog Biodiesel, LLC
Fair value of consideration issued:
Cash	$ 10,933	$ 1,791	$ 0	$ 1,323
In-kind consideration				1,336
Total				$ 2,659

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Fair Value Measurement - (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Preferred stock embedded derivatives
Liabilities measured at fair value on a recurring basis
Beginning balance		$ (53,822)	$ (61,761)
Total unrealized gains (losses)	0	11,975	7,939
Purchase accounting consolidation			0
Purchases	0	0
Issuance	0	0
Settlements	0	41,847
Ending balance			(53,822)
Seneca Holdco Liability
Liabilities measured at fair value on a recurring basis
Beginning balance		(11,903)	(10,406)
Total unrealized gains (losses)	0	349	(2,097)
Purchase accounting consolidation			600
Purchases	0	0
Issuance	0	0
Settlements	0	11,554
Ending balance			$ (11,903)

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Consolidated Statements of Redeemable Preferred Stock and Equity (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Treasury stock purchased	441,949,000
Issuance of common stock in initial public offering, net of issuance cost	$ 8,892

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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Jan. 24, 2012	Jan. 03, 2012
Accounts receivable, amounts owed by related parties	$ 426	$ 771
Other assets, amounts owed by related party	35	692
Accounts payable, amounts owed to related parties	552	2,950
Common stock, par value	$ 0.0001	$ 0.0001		$ 0.0001
Common stock, shares authorized	300,000,000	300,000,000		450,000,000
Common stock, shares, outstanding	36,506,221	30,559,935
Treasury stock, shares outstanding	530,898	462,985
Series B Preferred Stock
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	3,000,000	3,000,000		3,000,000
Preferred stock, shares outstanding	143,313	2,995,106,000
Preferred stock redemption amount	$ 3,583	$ 74,878	$ 74,987

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Intangible Assets

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

INTANGIBLE ASSETS

Amortizing intangible assets consist of the following at December 31:

	2013			2012
Raw material supply agreement intangibles	$	5,502		$	4,919
Ground lease	200			200
Accumulated amortization	(835		)	(510		)
Total intangible assets	$	4,867		$	4,609

The raw material supply agreement acquired is amortized over its 15 year term based on actual usage under the agreement and expires in 2025. The Company determined the estimated amount of raw materials to be purchased over the life of the agreement to calculate a per pound rate of consumption. The rate is then multiplied by the actual usage each period for expense reporting purposes.

Amortization expense of $325, $252 and $200 for intangible assets is included in cost of goods sold – biodiesel in the statement of operations for the years ended December 31, 2013, 2012 and 2011, respectively.

Estimated amortization expense for fiscal years ended December 31 is as follows:

2014	$	418
2015	479
2016	492
2017	506
2018	521
Thereafter	2,451
Total	$	4,867

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- (Details Textual) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments (Textual) [Abstract]
Open commodity contracts	1,076
Variable interest rate on the Term Loan fixed under derivative agreement	0.92%
Net position	$ 221
Interest rate swap
Derivative Instruments (Textual) [Abstract]
Interest rate swap agreement, outstanding notional amount	3,295
Fair value of the interest rate swap agreements	19	46
Commodity Contract
Derivative Instruments (Textual) [Abstract]
Collateral associated with commodity-based derivatives	$ 13,896

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Stock-Based Compensation - Stock Options (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Common Stock options granted, exercised, forfeited, vested and exercisable
Options outstanding, Beginning Balance	87,026.000	87,026.000	87,526
Options outstanding, Weighted Average Exercise Price, Beginning Balance	$ 23.75	$ 23.75	$ 23.75
Options outstanding, Weighted Average Contractual Term, Beginning Balance	2 years 7 months 6 days	3 years 7 months 6 days	4 years 7 months 6 days	5 years 7 months 6 days
Number of Options, Forfeited	0	0	(500)
Weighted Average Exercise Price, Forfeited			$ 23.75
Options outstanding, Ending Balance	87,026.000	87,026.000	87,026.000	87,526
Options outstanding, Weighted Average Exercise Price, Ending Balance	$ 23.75	$ 23.75	$ 23.75	$ 23.75
Options outstanding, Weighted Average Contractual Term, Ending Balance	2 years 7 months 6 days	3 years 7 months 6 days	4 years 7 months 6 days	5 years 7 months 6 days
Options exercisable	87,026
Options exercisable, Weighted Average Exercise Price	$ 23.75
Options exercisable, Weighted Average Contractual Term	2 years 7 months 6 days

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Income Taxes - Unrecognized Tax Benefits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of total amounts of unrecognized tax benefits
Beginning of year balance	$ 1,900	$ 1,500	$ 1,500
Increases to tax positions expected to be taken	0	0	0
Increases to tax positions taken during prior years	0	400	0
Decreases to tax positions taken during prior years	0	0	0
Decreases due to lapse of statute of limitations	0	0	0
End of year balance	$ 1,900	$ 1,900	$ 1,500

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Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 25, 2014	Jun. 30, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	Renewable Energy Group, Inc.
Entity Central Index Key	0001463258
Document Type	10-K
Document Period End Date	Dec. 31, 2013
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Public Float			$ 358,842,000
Entity Common Stock, Shares Outstanding		38,787,018

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Other Assets

12 Months Ended

Dec. 31, 2013

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Assets

OTHER ASSETS

Prepaid expenses and other current assets consist of the following at December 31:

	2013		2012
Commodity derivatives and related collateral, net	$	13,675	$	7,637
Prepaid insurance	1,804		1,109
Prepaid service contracts	610		552
Prepaid storage	—		515
Deposits	293		857
RIN inventory	6,455		99
Income taxes receivable	2,197		4,735
Other	534		308
Total	$	25,568	$	15,812

RIN inventory is valued at the lower of cost or market and consists of (i) RINs the Company generates in connection with its production of biodiesel and (ii) RINs acquired from third parties. RINs generated by the Company are recorded at no cost, as these RINs are government incentives and not a tangible output from its biodiesel production. The cost of RINs acquired from third parties is determined using the average cost method. RIN market value is based upon pricing as reported by the Oil Price Information Service (OPIS). Since RINs generated by the Company have zero cost associated to them, the lower of cost or market adjustment in RIN inventory reflects only the value of RINs obtained from third parties. RIN inventory values were adjusted in the amount of $1,277 and $21 at December 31, 2013 and 2012, respectively, to reflect the lower of cost or market.

Other noncurrent assets consist of the following at December 31:

	2013		2012
Debt issuance costs (net of accumulated amortization of $715 and $923, respectively)	$	832	$	946
Spare parts inventory	3,671		3,546
Other	526		859
Total	$	5,029	$	5,351

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Other Assets - (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Other Assets (Textual) [Abstract]
Accumulated amortization on debt issuance costs	$ 715	$ 923
Inventory reduced to lower of cost or market	$ 1,277	$ 21

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Income Taxes - Effective Income Tax Rate Reconciliation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Statutory rate	35.00%
Effective income tax rate continuing operations tax rate reconciliation
U.S. Federal income tax expense at a statutory rate of 35 percent	$ (66,955)	$ (8,256)	$ (32,090)
State taxes, net of federal income tax benefit	6,905	(684)	(3,020)
Tax position on government incentives	131,829	0	0
Loss on embedded derivative	0	4,191	2,779
Reduction in stock-based compensation deferred tax asset	0	(3,686)	0
Domestic production activities deduction	0	0	(307)
Seneca Landlord	0	200	(1,701)
Unrecognized tax benefits	0	(400)	0
Other	202	(156)	(582)
Total (expense) benefits for income taxes before valuation allowances	71,981	(8,791)	(34,307)
Valuation allowances	(76,916)	7,337	31,325
INCOME TAX EXPENSE	$ (4,935)	$ (1,454)	$ (2,982)

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Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
REVENUES:
Biodiesel sales	$ 1,207,618	$ 1,006,465	$ 752,826
Biodiesel sales—related parties	0	6	5,161
Biodiesel government incentives	290,393	8,326	65,822
Total biodiesel sales	1,498,011	1,014,797	823,809
Services	127	237	222
Total revenue	1,498,138	1,015,034	824,031
COSTS OF GOODS SOLD:
Biodiesel	1,209,191	902,084	433,060
Biodiesel—related parties	49,358	54,364	263,562
Services	156	263	198
Total cost of goods sold	1,258,705	956,711	696,820
GROSS PROFIT	239,433	58,323	127,211
SELLING, GENERAL, AND ADMINISTRATIVE EXPENSES (includes related party amounts of $37, $158, and $1,505, respectively)	46,123	42,422	34,479
INCOME FROM OPERATIONS	193,310	15,901	92,732
OTHER INCOME (EXPENSE), NET:
Change in fair value of preferred stock conversion feature embedded derivatives	0	11,975	7,939
Change in fair value of Seneca Holdco liability	0	349	(2,097)
Other income	388	167	930
Interest expense (includes related party amounts of $30, $32, and $761, respectively)	(2,397)	(4,679)	(8,095)
Total other income (expenses)	(2,009)	7,812	(1,323)
INCOME BEFORE INCOME TAXES AND INCOME FROM EQUITY INVESTMENTS	191,301	23,713	91,409
INCOME TAX EXPENSE	(4,935)	(1,454)	(2,982)
INCOME FROM EQUITY INVESTMENTS	0	0	442
NET INCOME	186,366	22,259	88,869
EFFECTS OF RECAPITALIZATION	0	39,107	0
LESS—ACCRETION OF SERIES A PREFERRED STOCK TO REDEMPTION VALUE	0	(1,808)	(25,343)
LESS—CHANGES IN UNDISTRIBUTED DIVIDENDS ALLOCATED TO PREFERRED STOCKHOLDERS	0	(823)	(12,723)
LESS—DISTRIBUTED DIVIDENDS TO PREFERRED STOCKHOLDERS	(2,055)	(3,156)	0
LESS—EFFECT OF PARTICIPATING PREFERRED STOCK	(16,272)	(8,952)	(4,186)
LESS—EFFECT OF PARTICIPATING SHARE-BASED AWARDS	(2,785)	(3,145)	(3,864)
NET INCOME ATTRIBUTABLE TO THE COMPANY’S COMMON STOCKHOLDERS	$ 165,254	$ 43,482	$ 42,753
Net income per share attributable to common stockholders:
Basic (in dollars per share)	$ 5.00	$ 1.53	$ 3.14
Diluted (in dollars per share)	$ 5.00	$ 0.27	$ 3.14
Weighted-average shares used to compute net income per share attributable to common stockholders:
Basic (in shares)	33,045,164	28,381,676	13,607,840
Diluted (in shares)	33,052,879	34,340,466	13,607,840

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Redeemable Preferred Stock

12 Months Ended

Dec. 31, 2013

Temporary Equity Disclosure [Abstract]

Redeemable Preferred Stock

REDEEMABLE PREFERRED STOCK

The rights, preferences, privileges and restrictions granted to and imposed on the preferred stock are set forth below. The holders of preferred stock are generally protected from anti-dilution by adjustments for any stock dividends, stock split, combination or other recapitalization.

In connection with the Company’s IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly-issued Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.5% per annum. Prior to conversion, Series A Preferred Stock accrued dividends at the rate of $0.88 per share per annum, was entitled to voting rights on an as converted basis, had liquidation preference over common stock, and had certain redemption rights. All Series A Preferred Stock was converted and no Series A Preferred Stock remains outstanding.

Series B Preferred Stock

Dividend Provisions

The holders of the Series B Preferred Stock are entitled to receive, when, as and if declared by the Company Board, cumulative dividends on each outstanding share of Series B Preferred Stock at the annual rate of 4.50% of the stated value. Dividends are payable semi-annually in arrears on June 30 and December 30 of each year. The Company may, at its option, defer a regularly scheduled dividend payment and instead pay accumulated and unpaid dividends on the following dividend payment date. The Company can only defer two such dividend payments and may not defer consecutive dividend payments. The Company will pay any dividend in cash, by delivering shares of Common Stock or through any combination of cash and shares of Common Stock. During May 2012, the Company Board declared its first dividend with respect to the Series B Preferred Stock in the amount of $0.49 per share in cash. Total dividends paid on June 30, 2012 were $1,470. The payment was pro-rated to give effect to the fact that the Series B Preferred Stock was not issued until January 24, 2012. During December 2012, the Company Board declared its second dividend with respect to the Series B Preferred Stock in the amount of $0.5625 per share in cash. The second dividend was paid in December 2012 in the amount of $1,685. The Company declared and paid dividends in 2013 with respect to the Series B Preferred Stock in the amount of $0.5625 per share cash. The dividends were paid in June 2013 and December 2013 in the amount of $1,205 and $80, respectively.

Liquidation Rights

In the event of any voluntary or involuntary liquidation, dissolution or winding up of affairs, a holder of Series B Preferred Stock will be entitled to be paid, before any distribution or payment may be made to any holders of junior stock, an amount per share of Series B Preferred Stock, ( the "Liquidation Preference"), equal to the sum of the stated value of a share of Series B Preferred Stock of $25.00, (the "Stated Value"), plus the amount of any accumulated and unpaid dividends, whether or not declared, to, but excluding, the date of payment.

If upon any liquidation or dissolution, the remaining net assets of the Company are insufficient to pay the amount that the Series B preferred stockholders are due as indicated above, the holders of Series B Preferred Stock will share ratably in any distribution of the remaining assets of the Company.

Conversion Rights

At any time following the lock-up expiration date, the holder of any shares of Series B Preferred Stock will have the right to convert such shares, together with accumulated and unpaid dividends (whether or not declared) into shares of Common Stock at a conversion rate in effect at such time. The initial conversion rate for each $25.00 of Liquidation Preference will be equal to $25.00 divided by a price that is 125% of the public offering price in the IPO.

The conversion rate is subject to adjustment from time to time upon the following events: a distribution or dividend of Common Stock, certain subdivisions and combinations of the Common Stock, the issuance to holders of Common Stock of certain rights or warrants to purchase Common Stock, certain dividends or distributions of capital stock, evidences of indebtedness, other assets or cash to holders of Common Stock, or, under certain circumstances, a payment the Company makes in respect of a tender offer or exchange offer for Common Stock.

If, at any time following the lock-up expiration date, the closing sale price of the Common Stock exceeds $15.00 for at least 20 trading days in any 30 consecutive trading day period and the average daily trading volume of the Common Stock for at least 20 trading days in such period exceeds 200,000 shares or $2,500, then the Company may, at its option, cause up to 50% of the then-outstanding shares of Series B Preferred Stock, and corresponding accumulated and unpaid dividends, to be converted into shares of Common Stock at the then-applicable conversion rate. This occurred and was affected in 2013. If, at any time following the lock-up expiration date, the closing sale price of the Common Stock exceeds $16.00 for at least 20 trading days in any 30 consecutive trading day period and the average daily trading volume of the Common Stock for at least 20 trading days in such period exceeds 200,000 shares or $2,500, the Company may, at its option, cause up to all of the then-outstanding shares of Series B Preferred Stock, and corresponding accumulated and unpaid dividends, to be converted into shares of Common Stock at the then-applicable conversion rate.

Voting Rights

Each holder of the Series B Preferred Stock is entitled to vote their shares of Series B Preferred Stock on an as-converted basis on any matters presented to holders of Common Stock. Except as required by law, holders of Series B Preferred Stock will vote on an as-converted basis together with the holders of Common Stock and with the holders of any other class or series of the Company’s capital stock entitled to vote with the Common Stock, as a single class.

The vote or consent of at least 75% of the outstanding shares of the Series B Preferred Stock, voting as a separate class, shall be necessary to amend, alter or repeal the terms of the Series B Preferred Stock so as to adversely affect the powers, preferences or rights of the Series B Preferred Stock.

Redemption Rights

Except as set forth below, the Company may not redeem the Series B Preferred Stock prior to the date, (the "Initial Optional Redemption Date") which is 18 months following the lock-up expiration date. On or after the Initial Optional Redemption Date, the Series B Preferred Stock may be redeemed at the Company’s option, in whole or in part, for cash at a price per share equal to the Stated Value, plus any accumulated and unpaid dividends (the "Redemption Price"). If a change of control transaction occurs any time before the Initial Optional Redemption Date, then the Company may elect to redeem all, but not part, of the outstanding shares of Series B Preferred Stock for cash at the Redemption Price plus a “make-whole” payment for each share of Series B Preferred Stock equal to $2.25 less the amount of any dividends paid on such share since the original issuance date of the Series B Preferred Stock.

If before March 31, 2015, the Company conducts an equity offering or offerings for cash that results in aggregate net proceeds in excess of $20,000, then, subject to the Company having legally available funds, the Company will offer to purchase or redeem the maximum number of shares of Series B Preferred Stock at a price equal to the Stated Value plus the amount of any accumulated and unpaid dividends to, but excluding, the purchase date that may be purchased or redeemed using 25% of those net proceeds. Before the Initial Optional Redemption Date, the Company will use those net proceeds to offer to purchase, in a tender offer, Series B Preferred Stock, and after the Initial Optional Redemption Date, the Company will use those net proceeds to redeem Series B Preferred Stock.

On June 30, 2015, each holder of Series B Preferred Stock will have the right to require the Company to redeem its shares at the Redemption Price, subject to the Company having legally available funds. If at any time dividends on any shares of Series B Preferred Stock are unpaid as of the specific dividend payment date and the non-payment continues for a period of 30 days, then the holders of not less than 25% of the then-outstanding Series B Preferred Stock may require the Company, subject to our having legally available funds, to redeem all outstanding shares of Series B Preferred Stock at the Redemption Price.

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Stockholders' Equity of the Company

12 Months Ended

Dec. 31, 2013

Stockholders' Equity Attributable to Parent [Abstract]

Stockholders' Equity of the Company

STOCKHOLDERS’ EQUITY OF THE COMPANY

Common Stock

The Company has authorized capital stock consisting of 450,000,000 shares, all with a par value of $.0001 per share, which includes 300,000,000 shares of Common Stock (the class of common stock offered in the IPO), 140,000,000 shares of Common Stock A and 10,000,000 shares of Preferred Stock including 3,000,000 shares of Series B Preferred Stock.

Each holder of Common Stock is entitled to one vote for each share of Common Stock held on all matters submitted to a vote of stockholders. Subject to preferences that may apply to shares of previously outstanding Series A Preferred Stock and currently outstanding Series B Preferred Stock as outlined below, the holders of outstanding shares of Common Stock are entitled to receive dividends. After the payment of all preferential amounts required to the holders of Series B Preferred Stock, all of the remaining assets of the Company available for distribution shall be distributed ratably among the holders of Common Stock.

On January 3, 2012, the Company effected a one-for-2.5 reverse stock split on the shares issued and outstanding. All numbers of common shares and per share data in the accompanying consolidated financial statements and related notes have been retroactively adjusted.

On January 24, 2012, the Company completed an IPO of shares of Common Stock in which it sold 7,200,000 shares at a price to the public of $10 per share, which included 342,860 shares of Common Stock from selling shareholders. The IPO raised approximately $59,919 net of underwriting fees and offering costs. In connection with the Company’s IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly issued Class A Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.50% per annum.

During the third quarter 2013, the Company's closing sale price of its Common Stock exceeded $15.00 for at least 20 days in a 30 consecutive trading day period with the average daily trading volume exceeding 200,000 shares. Therefore, the Company opted to cause 50% of the then-outstanding shares of Series B Preferred Stock to be converted as provided for in the preferred stock shareholder agreement. The Company converted 518,365 shares of Series B Preferred Stock into 1,047,465 shares of Common Stock.

Common Stock Warrants

Under the Company’s outstanding warrants, the holder may purchase the number of shares of Common Stock underlying each warrant held for a purchase price of $11.16 per share. The warrant holder may “net exercise” the warrants and use the common shares received upon exercise of the warrants outstanding as the consideration for payment of the exercise price.

The warrant holders are generally protected from anti-dilution by adjustments for any stock dividends, stock split, combination, or other recapitalization.

On January 24, 2012, certain common stock warrant holders were converted to Class A Common Stock as part of the stock recapitalization. Warrant holders converted 287,561 common stock warrants to 134,181 shares of Common Stock.

The following table summarizes the number of shares reserved for the exercise of common stock purchase warrants as of December 31:

Issued to	Issuance Date	Expiration Date	Exercise Price Per Share		Warrants Outstanding 2013	Warrants Outstanding 2012
Blackhawk warrant holders	February 26, 2010	February 25, 2015	$	11.16	17,916	17,916

No common stock warrants were issued during 2013 or 2012.

Stock Issuance Costs

In addition to the warrants, other direct costs of obtaining capital by issuing the common and preferred stock were deducted from related proceeds with the net amount recorded as preferred stock or stockholders’ equity. Direct costs incurred for the years ended December 31, 2013, 2012 and 2011 were $114, $700 and $3,152, respectively.

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Related Party Transactions

12 Months Ended

Dec. 31, 2013

Related Party Transactions [Abstract]

Related Party Transactions

RELATED PARTY TRANSACTIONS

Related parties include certain investors as well as entities in which the Company has an equity method investment or an investment combined with a MOSA or board seat. Investors defined as related parties include (i) the investor having ten percent or more ownership, including convertible preferred stock, in the Company or (ii) the investor holding a board seat on the Company Board. After the IPO, the number of related parties decreased due to the dilution of ownership of prior investors as well as the reduction of the number of board seats on the Company Board held by related party investors. The Company will report related party transactions before and after the IPO based on the related party characteristics mentioned above.

Summary of Related Party Transactions - Consolidated Statements of Operations
		2013		2012		2011
	Revenues - Biodiesel sales (a)	$	—	$	6	$	5,161
	Cost of goods sold - Biodiesel (b)	$	49,358	$	54,364	$	263,562
	Selling, general and administrative expenses (c)	$	37	$	158	$	1,505
	Interest expense (d)	$	30	$	32	$	761
(a)	Represents transactions with related parties as follows:
	West Central	$	—	$	6	$	11
	Bunge	—		—		2,124
	ED & F Man	—		—		3,026
		$	—	$	6	$	5,161
(b)	Represents transactions with related parties as follows:
	West Central	$	49,358	$	50,415	$	48,510
	Bunge	—		3,949		203,092
	ED & F Man	—		—		11,960
		$	49,358	$	54,364	$	263,562
(c)	Represents transactions with related parties as follows:
	West Central	$	37	$	45	$	102
	Bunge	—		113		1,403
		$	37	$	158	$	1,505
(d)	Represents transactions with related parties as follows:
	West Central	$	30	$	23	$	96
	Bunge	—		9		308
	USRG	—		—		357
		$	30	$	32	$	761

Summary of Related Party Balances - Consolidated Balance Sheets
		2013		2012
	Accounts receivable (a)	$	426	$	771
	Other assets (a)	$	35	$	692
	Accounts payable (a)	$	552	$	2,950
(a)	Represents balances with West Central

West Central Cooperative

The Company purchases once-refined soybean oil from West Central Cooperative (West Central) and is required to pay interest for amounts owed on extended trade terms. The Company also had biodiesel and co-product sales to West Central.

West Central leases the land under the Company’s production facility at Ralston, Iowa to the Company at an annual cost of one dollar. The Company is responsible for the property taxes, insurance, utilities and repairs for the facility relating to this lease. The lease has an initial term of twenty years and the Company has options to renew the lease for an additional thirty years.

In 2006, the Company executed an asset use agreement with West Central to provide for the use of certain assets, such as office space, maintenance equipment and utilities. The agreement requires the Company to pay West Central its proportionate share of certain costs incurred by West Central. This agreement has the same term as the land lease. During February 2012, the Company renegotiated the asset use agreement. The new agreement provides for the use of certain assets, such as buildings, equipment and utilities, which will be charged to the Company based on fixed and variable components.

At the time of the signing of the contribution agreement, the Company entered into a contract for services with West Central, to provide certain corporate and administrative services such as human resources, information technology and accounting. The agreement requires the Company to pay West Central the proportionate share of the costs associated with the provision of services, plus a 15% margin. The agreement had an initial one-year term and is cancellable thereafter upon six months’ notice by either party. As part of the renegotiated asset usage agreement, the services agreement was cancelled in February 2012.

In connection with the SoyMor acquisition, REG Albert Lea, LLC (REG Albert Lea) assumed a loan with West Central. REG Albert Lea was required to make monthly interest payments. The loan was paid off in May 2012.

Bunge North America

Prior to 2012, the Company purchased feedstocks from Bunge North America, Inc. (Bunge) for the production of biodiesel. The costs associated with the purchased feedstocks were reflected in costs of goods sold – biodiesel when sold to the end customer. The Company also made sales of biodiesel and raw materials to Bunge.

The Company entered into an agreement for Bunge to provide services related to the procurement of raw materials and the purchase and resale of biodiesel produced by the Company. The Company was required to pay interest for the aggregate outstanding amounts owed to Bunge. Also, as part of the agreement, the Company was required to pay an incentive fee to Bunge for meeting certain hedging goals utilizing Bunge’s advice. On November 8, 2011, the Company gave notice of termination to Bunge in accordance with the agreement. The agreement expired May 2012.

ED & F Man Holdings Ltd.

In August 2006, the Company entered into a glycerin marketing agreement and various terminal lease agreements with one of ED & F Man Holdings Ltd’s (ED & F Man) then wholly-owned subsidiaries, Westway Feed Products, Inc. (Westway). This contract was terminated and expired in August 2011.

The Company also entered into a tolling agreement with ED & F Man for biodiesel to be produced out of the Company’s Houston, Texas biodiesel production facility during 2010. Additionally, the Company purchased biodiesel from ED & F Man for resale and had raw material sales to ED & F Man. There has been no activity or agreements in place during 2013 or 2012.

USRG Holdco IX, LLC

In August 2011, REG Albert Lea entered into a loan with USRG in the amount of $10,000 for the purpose of purchasing feedstocks and chemicals for REG Albert Lea’s biodiesel production facility. REG Albert Lea was required to pay interest monthly for the aggregate amount owned to USRG. The loan was repaid in due course prior to maturity in December 2011.

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Accrued Expenses and Other Liabilities

12 Months Ended

Dec. 31, 2013

Accrued Liabilities [Abstract]

Accrued Expenses and Other Liabilities

ACCRUED EXPENSES AND OTHER LIABILITIES

Accrued expenses and other liabilities consist of the following at December 31:

	2013		2012
Accrued property taxes	$	1,271	$	1,201
Accrued employee compensation	8,138		3,375
Accrued interest	109		47
Unfavorable lease obligation, current portion	1,129		1,129
Incentive stock liability	583		423
Excise tax payable	545		136
Other	530		164
Total	$	12,305	$	6,475

Other noncurrent liabilities consist of the following at December 31:

	2013		2012
Fair value of interest rate swap	$	19	$	46
Liability for unrecognized tax benefits	1,900		1,900
Deferred grant revenue	745		745
Straight-line lease liability	3,581		4,011
Bell, LLC member investment on consolidation	593		590
Total	$	6,838	$	7,292

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Borrowings - (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Borrowing (Textual) [Abstract]
Effective interest rate	5.00%
Maturity date	Feb. 15, 2013
Wells Fargo Revolver
Borrowing (Textual) [Abstract]
Line of Credit Facility Basis Spread on LIBOR	1.50%
Effective interest rate at period end	3.75%
Additional increase in maximum borrowing capacity	$ 40,000
Maximum commitment	60,000
Maturity date	Dec. 23, 2016
Minimum variable rate	1.75%
Basis spread on federal fund rate	0.50%
Fixed charge coverage ratio	100.00%
Limitation amount	25,000
Excess Availability	4,000
Wells Fargo Revolver | Maximum
Borrowing (Textual) [Abstract]
LIBOR Rate Margin	3.25%
Base rate margin percentage	1.75%
Wells Fargo Revolver | Minimum
Borrowing (Textual) [Abstract]
LIBOR Rate Margin	2.50%
Base rate margin percentage	1.00%
REG Danville, LLC
Borrowing (Textual) [Abstract]
Maturity date	Nov. 03, 2015
Interest to be accrued	LIBOR plus 5% per annum	LIBOR plus 5% per annum
Reg Newton, LLC
Borrowing (Textual) [Abstract]
Term Loan Renewal Period	5 years
Periodic payment, principal and interest	270
Increase in term loan	5,000
Basis point	4.00%
Effective interest rate	4.17%
Principal payment of excess cash flow	50.00%
Excess cash flow payment	0	0
LIBOR period for interest rate	30 days
Interest to be accrued	LIBOR plus 400 basis points
Maintenance Capital Expenditure Maximum Amount	500
Annual payment period under loan agreement	120 days
REG Mason City, LLC
Borrowing (Textual) [Abstract]
Principal payments	92
Principal payment of excess cash flow	50.00%
Excess cash flow payment	0
Fifth Third Loan | REG Danville, LLC
Borrowing (Textual) [Abstract]
Agreement starting period	Nov. 03, 2011
Term Loan Renewal Period		3 years
Periodic payment, principal and interest	150
Principal payments	6,400
Basis point	5.00%
Effective interest rate	5.17%
Principal payment of excess cash flow	50.00%
Excess cash flow payment	$ 1,425	$ 1,429

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Inventories

12 Months Ended

Dec. 31, 2013

Inventory Disclosure [Abstract]

Inventories

INVENTORIES

Inventories consist of the following at December 31:

	2013		2012
Raw materials	$	13,393	$	9,835
Work in process	1,456		448
Finished goods	70,965		34,923
Total	$	85,814	$	45,206

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Stockholders' Equity of the Company - (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended	12 Months Ended						1 Months Ended		0 Months Ended	1 Months Ended	3 Months Ended			1 Months Ended			1 Months Ended		1 Months Ended		3 Months Ended	12 Months Ended			1 Months Ended
	Jan. 31, 2012	Sep. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 24, 2012	Jan. 03, 2012	Jul. 12, 2011	Jan. 24, 2012 Initial public offering	Jan. 24, 2012 Current Shareholders Initial public offering	Jan. 03, 2012 Common Stock	Jan. 24, 2012 Common Stock	Sep. 30, 2013 Common Stock	Jan. 24, 2012 Common Stock Initial public offering	Jan. 03, 2012 Common Stock Initial public offering	Jan. 31, 2012 Class A Common Stock	Jan. 24, 2012 Class A Common Stock	Jan. 03, 2012 Class A Common Stock	Jan. 24, 2012 Class A Common Stock Initial public offering	Jan. 03, 2012 Preferred Stock	Jan. 24, 2012 Series B Preferred Stock	Jan. 31, 2012 Series B Preferred Stock	Sep. 30, 2013 Series B Preferred Stock	Dec. 31, 2013 Series B Preferred Stock	Dec. 31, 2012 Series B Preferred Stock	Jan. 03, 2012 Series B Preferred Stock	Jan. 24, 2012 Series B Preferred Stock Initial public offering
Common stock, shares issued								673,544	7,200,000	342,860
Net of underwriting fees and offering costs									$ 59,919
Warrants converted into common stock						287,561
Conversion of Class A common stock/Series B Preferred Stock to common stock, Shares												7,660,612				7,660,612					2,999,493	2,999,493					2,999,493
Stock split conversion ratio											0.4
Common Stock
IPO of shares of common stock / Issuance of common stock in acquisitions																			7,660,612						7,660,612
Preferred stock cumulative dividends	4.50%																				4.50%			4.50%			4.50%
Exercise Price Per Share			11.16
Class A Common Stock																	134,181
Common stock, shares issued								673,544	7,200,000	342,860
Common stock, shares authorized			300,000,000	300,000,000			450,000,000								300,000,000			140,000,000
Preferred stock																				10,000,000				3,000,000	3,000,000	3,000,000
Aggregate liquidation from conversion																					74,987			3,583	74,878		74,987
Share price													$ 15.00	$ 10
Conversion of Stock, Shares Converted																							518,365
Conversion of preferred Stock and certain common stock warrants													1,047,465
Trading Period Of Security													20 days
Number Of Trading Days For Share Price			30 days										30 days
Trading Volume Of Security		200,000	200,000
Percentage Of Preferred Stock To Be Converted																							50.00%	50.00%
Common stock, par value			$ 0.0001	$ 0.0001			$ 0.0001
Stock split ratio on shares issued											one-for-2.5 reverse stock split on the shares issued and outstanding
Payments of Stock Issuance Costs			$ 114	$ 700	$ 3,152

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Net Income Per Share (Details) (USD $)	12 Months Ended															1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Options to purchase common stock	Dec. 31, 2012 Options to purchase common stock	Dec. 31, 2011 Options to purchase common stock	Dec. 31, 2013 Warrants to purchase common stock	Dec. 31, 2012 Warrants to purchase common stock	Dec. 31, 2011 Warrants to purchase common stock	Dec. 31, 2013 Restricted stock units	Dec. 31, 2012 Restricted stock units	Dec. 31, 2011 Restricted stock units	Dec. 31, 2013 Stock appreciation rights	Dec. 31, 2012 Stock appreciation rights	Dec. 31, 2011 Stock appreciation rights	Jan. 24, 2012 Series A Preferred Stock	Dec. 31, 2013 Series A Preferred Stock	Dec. 31, 2013 Redeemable Preferred Stock	Dec. 31, 2012 Redeemable Preferred Stock	Dec. 31, 2011 Redeemable Preferred Stock	Dec. 31, 2013 Series B Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Preferred Stock accrued dividends																$ 0.88	$ 0.88				$ 1.125
Anti-dilutive securities	1,117,952	2,074,347	7,055,394	87,026	87,026	87,207	0	35,987	355,886	0	754,359	1,230,092	1,030,926	1,196,975	0			0	0	5,382,209

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Acquisitions and Equity Transactions

12 Months Ended

Dec. 31, 2013

Business Combinations [Abstract]

Acquisitions and Equity Transactions

ACQUISITIONS AND EQUITY TRANSACTIONS

SoyMor Biodiesel, LLC

On July 12, 2011, the Company and REG Albert Lea, LLC (REG Albert Lea), a subsidiary of the Company, completed its asset acquisition of SoyMor. Pursuant to the Asset Purchase Agreement, dated June 8, 2011, the Company issued 673,544 shares of Common Stock in exchange for the transfer of substantially all the assets of SoyMor and assumed certain liabilities. The assets of SoyMor consisted primarily of a 30 mmgy nameplate capacity biodiesel facility located in Albert Lea, Minnesota, as well as, a co-located soy lecithin production facility. The Company recorded a gain from the equity investment of $661 due to step-up acquisition accounting for SoyMor. The equity investment gain was recorded in income (loss) from equity investments on the condensed consolidated statement of operations.

The Company determined that the SoyMor assets did not constitute a business as defined under ASC Topic 805, Business Combinations (ASC Topic 805), on the basis that the SoyMor assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit or return to the Company. As a result, the Company accounted for the SoyMor assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition, and no significant contingent assets or liabilities were acquired or assumed in the acquisition.

The following table summarized the allocation of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition:

	Allocation at July 12, 2011
Assets (liabilities) acquired:
Inventory	$	78
Property, plant and equipment	18,886
Debt	(1,001		)
Fair value of investment prior to allocation	(1,613		)
Fair value of common stock issued	$	16,350

The acquisition price is summarized as follows:

	Value at July 12, 2011
	Fair Value		Fair Value per Share
Fair value of stock issued:
Common Stock	$	16,350	$	24.28

Seneca Landlord, LLC

On January 24, 2012, the Company acquired the Seneca Facility pursuant to the exercise of its option under the Funding, Investor Fee and Put/Call Agreement (Put/Call Agreement). Pursuant to the Put/Call Agreement, the Company acquired all of the equity interest of Seneca Landlord, which owned the Seneca Facility, in exchange for $12,000, of which approximately $937 was previously paid, and 60,000 shares of the Company’s Class A Common Stock.

Seneca Landlord was determined to be a consolidated variable interest entity (VIE) prior to the exercise of the option available under the Put/Call Agreement, thus the basis of the assets recorded were not impacted by its exercise. The payment of cash and Class A Common Stock shown below was used to relieve the Company’s obligation reflected on the condensed consolidated balance sheet as the Seneca Holdco Liability.

A summary of the acquisition price is as follows:

	Value at January 24, 2012
	Fair Value		Fair Value per Share
Fair value of consideration issued:
Cash	$	11,063
Class A Common Stock	591		$	9.85
Total	$	11,654

North Texas Bio Energy, LLC

On October 26, 2012, the Company and REG New Boston, LLC (New Boston), a subsidiary of the Company, completed its acquisition of North Texas Bio Energy, LLC (NTBE). Pursuant to the Asset Purchase Agreement, the Company acquired substantially all of the assets of NTBE in exchange for 900,000 shares of the Company’s common stock and $324 in cash. The assets of NTBE consisted of an idled 15 mmgy nameplate capacity biodiesel facility and related assets, located in New Boston, Texas.

The Company determined that the NTBE assets did not constitute a business as defined under ASC Topic 805 on the basis that the NTBE assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit or return to the Company. As a result, the Company accounted for the NTBE assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition, and no significant contingent assets or liabilities were acquired or assumed in the acquisition.

The following table summarized the allocation of the purchase price to the fair values of the assets acquired at the date of acquisition:

	Allocation at October 26, 2012
Assets acquired:
Other current assets	$	17
Property, plant and equipment	4,636
Fair value of common stock issued	$	4,653

The acquisition price is summarized as follows:

	Value at October 26, 2012
	Fair Value		Fair Value per Share
Fair value of consideration issued:
Cash	$	324
Class A Common Stock	4,329		$	4.81
Total	$	4,653

BullDog Biodiesel, LLC

On November 16, 2012, the Company and REG Atlanta, LLC (Atlanta), a subsidiary of the Company, completed its acquisition of BullDog Biodiesel, LLC. Pursuant to the Asset Purchase Agreement, the Company acquired substantially all of the assets of BullDog in exchange for $1,323 in cash and $1,336 of in-kind contribution. The assets of BullDog consisted of an idled 15 mmgy nameplate capacity biodiesel facility and related assets, located near Atlanta, Georgia. The facility had been idled prior to our acquisition and will remain so until certain repairs or upgrades are made.

The Company determined that the BullDog assets were not a business as defined under ASC Topic 805 on the basis that the BullDog assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit or return to the Company. As a result, the Company accounted for the BullDog assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition, and no significant contingent assets or liabilities were acquired or assumed in the acquisition.

The following table summarized the allocation of the purchase price to the fair values of the assets acquired at the date of acquisition:

	Allocation at November 16, 2012
Assets acquired:
Other current assets	$	13
Property, plant and equipment	2,646
Total	$	2,659

The acquisition price is summarized as follows:

	Value at November 16, 2012
Fair value of consideration issued:
Cash	$	1,323
In-kind contribution	1,336
Total	$	2,659

Soy Energy, LLC

On July 30, 2013, the Company and REG Mason City, LLC (REG Mason City), a subsidiary of the Company, completed the acquisition of substantially all the assets of Soy Energy, LLC's (Soy Energy) assets in exchange for $10,933 cash and the issuance of a $5,135 promissory note to Soy Energy. The assets of Soy Energy consisted of a 30 mmgy nameplate capacity biodiesel facility and related assets, located in Mason City, Iowa.

The Company determined that the Soy Energy assets were not a business as defined under ASC Topic 805, on the basis that the assets were not an integrated set of activities or assets that were capable of being conducted or managed in a manner that would provide any economic benefit to the Company. As a result, the Company accounted for the Soy Energy assets as an asset acquisition. Neither goodwill nor a gain from a bargain purchase was recognized in conjunction with the acquisition.

The allocation of the purchase price to the fair values of the assets acquired at the date of acquisition is as follows:

	Allocation at July 30, 2013
Assets (liabilities) acquired:
Property, plant and equipment	$	16,085
Other current liabilities	(17		)
Total	$	16,068

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Variable Interest Entities

12 Months Ended

Dec. 31, 2013

Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]

Variable Interest Entities

VARIABLE INTEREST ENTITIES

The Company has a 50% ownership in 416 S. Bell, LLC (Bell, LLC), a VIE joint venture that owns and leases to the Company its corporate office building in Ames, Iowa. Commencing January 1, 2011, the Company has the right to execute a call option with the joint venture member, Dayton Park, LLC (Dayton Park), to purchase Bell, LLC and commencing on January 1, 2013, Dayton Park has the right to execute a put option with the Company to sell Bell, LLC. The Company determined it was the primary beneficiary of Bell, LLC and has consolidated Bell, LLC into the Company’s financial statements since January 1, 2011. The Company is the primary beneficiary due to its ownership interest and having an exercisable call option that allows the Company to direct the activities that most significantly impact Bell, LLC’s economic performance and gives the Company the majority of the benefit from the use of Bell, LLC’s assets. Through the initial consolidation of Bell, LLC, the Company had an outstanding promissory note balance of $4,757 with interest accrued monthly at a rate of 5.7% per annum, with a maturity date of February 15, 2013. During February 2013, the Bell, LLC promissory note was amended to reflect the current interest rate of 3.5% per annum and maturity date of January 14, 2018. The note is secured by a mortgage interest in the office building.

The following table summarizes the fair values of the assets and liabilities recorded by the Company as a result of the consolidation of Bell, LLC:

	Allocation at January 1, 2011
Assets (liabilities) acquired:
Cash	$	22
Property, plant and equipment	5,881
Noncurrent assets	4
Other current liabilities	(17		)
Debt	(4,757		)
Other noncurrent liabilities	(567		)
Carrying value of previously held equity method investment	$	566

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Property, Plant and Equipment

12 Months Ended

Dec. 31, 2013

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

Company owned property, plant and equipment consists of the following at December 31:

	2013			2012
Land	$	2,442		$	987
Building and improvements	72,453			50,688
Leasehold improvements	6,887			6,879
Machinery and equipment	166,552			127,167
	248,334			185,721
Accumulated depreciation	(37,362		)	(28,097		)
	210,972			157,624
Construction in process	75,072			85,261
Total	$	286,044		$	242,885

Property, plant and equipment of consolidated VIE’s consists of the following at December 31:

	2013			2012
Land	$	404		$	404
Building and improvements	6,290			6,290
	6,694			6,694
Accumulated depreciation	(1,514		)	(1,289		)
Total	$	5,180		$	5,405

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Acquisitions and Equity Transactions - Seneca Landlord, LLC Acquisition Price (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended				1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 03, 2012	Jan. 24, 2012 Seneca Landlord, LLC	Jan. 24, 2012 Seneca Landlord, LLC Class A Common Stock
Fair value of consideration issued:
Cash	$ 10,933	$ 1,791	$ 0		$ 11,063
Class A Common Stock/Common stock						591
Fair Value per Share	$ 0.0001	$ 0.0001		$ 0.0001		$ 9.85
Total					$ 11,654

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Borrowings - Revolving Borrowings (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of company's revolving borrowings
Total revolving loans (current)	$ 10,986	$ 0

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Acquisitions and Equity Transactions - North Texas Bio Energy, LLC Acquisition Price (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended				1 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 03, 2012	Oct. 26, 2012 North Texas Bio Energy, LLC
Fair value of consideration issued:
Cash	$ 10,933	$ 1,791	$ 0		$ 324
Class A Common Stock/Common stock					4,329
Fair Value per Share	$ 0.0001	$ 0.0001		$ 0.0001	$ 4.81
Total					$ 4,653

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Operating Leases - (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases, Operating [Abstract]
Total rent expense under operating leases	$ 12,549	$ 11,114	$ 7,299

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Acquisitions and Equity Transactions - SoyMor Biodiesel, LLC Acquisition Price (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified				0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Jan. 03, 2012	Jul. 12, 2011 Class A Common Stock SoyMor Biodiesel, LLC
Fair value of consideration issued:
Fair Value				$ 16,350
Fair Value per Share	$ 0.0001	$ 0.0001	$ 0.0001	$ 24.28

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Income Taxes - (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes (Textual) [Abstract]
Deferred tax asset reflecting federal and state net operating losses	$ 81,761
Federal net operating losses	208,129
Expiration date for federal net operating losses	2028
Tax credit carry-forwards	3,068
Unrecognized tax benefits that would affect the effective tax rate	0	1,428	1,041
Period for unrecognized tax benefits to increase or decrease	12 months
Interest and penalties related to unrecognized tax benefits	$ 0

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Activity regarding the allowance for doubtful accounts

Activity regarding the allowance for doubtful accounts was as follows:

Balance, January 1, 2011	$	316
Amount charged to selling, general and administrative expenses	1,389
Charge-offs, net of recovery	(270		)
Balance, December 31, 2011	1,435
Amount charged to selling, general and administrative expenses	563
Charge-offs, net of recovery	(26		)
Balance, December 31, 2012	1,972
Amount charged to selling, general and administrative expenses	309
Charge-offs, net of recovery	(157		)
Balance, December 31, 2013	$	2,124

Estimated useful lives

Depreciation expense is computed on a straight-line method based upon estimated useful lives of the assets. Estimated useful lives are as follows:

Automobiles and trucks	5 years
Computers and office equipment	5 years
Office furniture and fixtures	7 years
Machinery and equipment	5-30 years
Leasehold improvements	the lesser of the lease term or 30 years
Buildings and improvements	30-40 years

Goodwill for Company's business segments

The following table summarizes goodwill for the Company’s business segments:

	Biodiesel		Services		Total
Beginning balance - January 1, 2012	$	68,784	$	16,080	$	84,864
Acquisitions	—		—		—
Ending balance - December 31, 2012	68,784		16,080		84,864
Acquisitions	—		—		—
Ending balance - December 31, 2013	$	68,784	$	16,080	$	84,864

Concentration risk by customer

Certain customers represented greater than 10% of the total consolidated revenues of the Company for the three years ended December 31, 2013, 2012 and 2011. All customer amounts disclosed in the table are related to biodiesel sales:

	2013		2012		2011
Customer A	$	243,258	$	363,372	$	189,773

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Reportable Segments (Tables)

12 Months Ended

Dec. 31, 2013

Segment Reporting [Abstract]

Segment for the results of operations

The following table represents the significant items by reportable segment for the results of operations for the years ended December 31, 2013, 2012 and 2011:

	2013			2012			2011
Net sales:
Biodiesel	$	1,498,011		$	1,014,797		$	823,809
Services	63,980			38,031			13,027
Intersegment revenues	(63,853		)	(37,794		)	(12,805		)
	$	1,498,138		$	1,015,034		$	824,031
Income before income taxes and income from equity investments:
Biodiesel	$	239,462		$	58,349		$	127,187
Services	(29		)	(26		)	24
Corporate and other (a)	(48,132		)	(34,610		)	(35,802		)
	$	191,301		$	23,713		$	91,409
Depreciation and amortization expense, net:
Biodiesel	$	8,199		$	7,111		$	8,833
Services	120			38			4
Corporate and other (a)	923			772			638
	$	9,242		$	7,921		$	9,475
Cash paid for purchases of property, plant and equipment:
Biodiesel	$	36,770		$	11,409		$	3,823
Services	504			396			53
Corporate and other (a)	1,779			849			930
	$	39,053		$	12,654		$	4,806

	2013		2012		2011
Goodwill:
Biodiesel	$	68,784	$	68,784	$	68,784
Services	16,080		16,080		16,080
	$	84,864	$	84,864	$	84,864
Assets:
Biodiesel	$	444,945	$	357,305	$	341,863
Services	20,542		20,033		20,474
Corporate and other (b)	275,368		118,446		122,110
	$	740,855	$	495,784	$	484,447

(a) Corporate and other includes income/(expense) not associated with the reportable segments, such as corporate general and administrative expenses, shared service expenses, interest expense and interest income, all reflected on an accrual basis of accounting.

(b) Corporate and other includes cash and other assets not associated with the reportable segments, including investments.

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Income Taxes

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

The Company historically included revenue from certain government incentive payments in taxable income on its federal and state income tax returns. In connection with the U.S. Internal Revenue Service audits of the 2011 and 2010 years, the Company proposed that these government incentive payments should be excluded from taxable income. The U.S. Internal Revenue Service accepted this position and on August 1, 2013, the Company received notification from the congressional Joint Committee on Taxation approving the audit results and associated refund claim. Based on information obtained in connection with these audits, the Company changed its position related to these government incentive payments to exclude them from taxable income for years 2008 through the current year. This change had a significant impact on the Company’s provision for income taxes in 2013 since this change reduced taxable income in each year between 2008 and 2013. The majority of this reduction increased the Company's net operating loss carry forwards available to offset future taxable income rather than resulting in a refund of taxes previously paid. As a result of excluding these government incentive payments, the Company currently has cumulative losses in recent years and has established a valuation allowance to reduce its total deferred tax assets to the amount more-likely-than-not to be realized

The tax effects of temporary differences that give rise to the Company’s deferred tax assets and liabilities at December 31 are as follows:

	2013						2012
	Current			Noncurrent			Current			Noncurrent
Deferred Tax Assets:
Goodwill	$	—		$	10,791		$	—		$	11,999
Net operating loss carryforwards	—			81,761			—			4,806
Tax credit carryforwards	—			3,068			—			3,068
Start-up costs	—			1,231			—			1,362
Stock-based compensation	—			2,137			—			1,214
Houston terminal lease	—			1,892			—			2,139
Accrued compensation	2,908			—			1,113			—
Inventory capitalization	1,053			—			985			—
Allowance for doubtful accounts	866			—			802			—
Other	150			1,064			236			678
Deferred tax assets	4,977			101,944			3,136			25,266
Deferred Tax Liabilities:
Prepaid expenses	(949		)	—			(596		)	—
Property, plant and equipment	—			(30,568		)	—			(23,425		)
Deferred revenue	(4,127		)	—			—			—
Other	(8		)	(731		)	(28		)	(872		)
Deferred tax liabilities	(5,084		)	(31,299		)	(624		)	(24,297		)
Net deferred tax assets (liabilities)	(107		)	70,645			2,512			969
Valuation allowance	(3,580		)	(73,336		)	—			—
Net deferred taxes	$	(3,687	)	$	(2,691	)	$	2,512		$	969

In evaluating available evidence, the Company considers, among other factors, historical financial performance, expectation of future earnings, length of statutory carry forward periods and ability to carry back losses to prior periods, experience with operating loss and tax credit carry forwards not expiring unused, tax planning strategies and timing for the of reversals of temporary differences. In evaluating losses, management considers the nature, frequency and severity of losses in light of the conditions giving rise to those losses. As a result of excluding government incentive payments, the Company currently has cumulative losses in recent years and has established a valuation allowance of to reduce its total deferred tax assets to the amount more-likely-than-not to be realized. Activity regarding the valuation allowance for deferred tax assets was as follows:

	2013		2012			2011
Beginning of year balance	$	—	$	7,337		$	38,662
Changes in valuation allowance charged to income	76,916		(7,337		)	(31,325		)
End of year balance	$	76,916	$	—		$	7,337

At December 31, 2013, the Company has recorded a deferred tax asset of $81,761 reflecting the benefit of federal and state net operating loss carry-forwards. Federal net operating losses total $208,129 and will begin to expire in 2028, while the amount and expiration dates of state net operating losses vary by jurisdiction. Changes in ownership of the Company, as defined by Section 382 of the Internal Revenue Code of 1986, as amended, may limit the utilization of federal and state net operating losses and credit carry forwards in any one year. The Company has performed a study to determine the impact of changes in ownership on utilization of carry forward attributes, the results of which have been incorporated into our financial statements.

At December 31, 2013, the Company had federal small agri-biodiesel producer tax credit carry-forwards of approximately $3,068. If not utilized, these small agri-biodiesel producer tax credits will expire at various times between 2026 and 2028.

Income tax benefit (expense) for the years ended December 31 is as follows:

	2013			2012			2011
Current income tax benefit (expense)
Federal	$	2,432		$	(912	)	$	(4,883	)
State	2,492			(588		)	(3,066		)
	4,924			(1,500		)	(7,949		)
Deferred income tax benefit (expense)
Federal	15,297			(9,857		)	(4,709		)
State	3,736			(1,187		)	(1,703		)
Net operating loss carryforwards created (utilized)	48,024			3,753			(19,946		)
	67,057			(7,291		)	(26,358		)
Income tax benefit (expense) before valuation allowances	71,981			(8,791		)	(34,307		)
Deferred tax valuation allowances	(76,916		)	7,337			31,325
Income tax expense	$	(4,935	)	$	(1,454	)	$	(2,982	)

A reconciliation of the reported amount of income tax expense to the amount computed by applying the statutory federal income tax rate to earnings from continuing operations before income taxes is as follows:

	2013			2012			2011
U.S. Federal income tax expense at a statutory rate of 35 percent	$	(66,955	)	$	(8,256	)	$	(32,090	)
State taxes, net of federal income tax benefit	6,905			(684		)	(3,020		)
Tax position on government incentives	131,829			—			—
Loss on embedded derivative	—			4,191			2,779
Reduction in stock-based compensation deferred tax asset	—			(3,686		)	—
Domestic production activities deduction	—			—			307
Seneca Landlord	—			200			(1,701		)
Unrecognized tax benefits	—			(400		)	—
Other	202			(156		)	(582		)
Total (expense) benefits for income taxes before valuation allowances	71,981			(8,791		)	(34,307		)
Valuation allowances	(76,916		)	7,337			31,325
Total expense for income taxes	$	(4,935	)	$	(1,454	)	$	(2,982	)

In accordance with ASC Topic 740, Income Taxes, the Company periodically reviews its portfolio of uncertain tax positions. An uncertain tax position represents the Company’s expected treatment of a tax position taken in a filed tax return, or planned to be taken in a tax return not yet filed, that has not been reflected in measuring income tax expense for financial reporting purposes. The Company does not recognize income tax benefits associated with uncertain tax positions where it is determined that it is not more-likely-than-not, based on the technical merits, that the position will be sustained upon examination.

A reconciliation of the total amounts of unrecognized tax benefits at December 31 is as follows:

	2013		2012		2011
Beginning of year balance	$	1,900	$	1,500	$	1,500
Increases to tax positions expected to be taken	—		—		—
Increases to tax positions taken during prior years	—		400		—
Decreases to tax positions taken during prior years	—		—		—
Decreases due to lapse of statute of limitations	—		—		—
End of year balance	$	1,900	$	1,900	$	1,500

The amount of unrecognized tax benefits that would affect the effective tax rate if the tax benefits were recognized was $0, $1,428 and $1,041 at December 31, 2013, 2012 and 2011, respectively. The remaining liability for unrecognized tax benefits is related to tax positions for which there is a related deferred tax asset. The Company does not believe it is reasonably possible that the amounts of unrecognized tax benefits existing as of December 31, 2013 will significantly increase or decrease over the next twelve months. Interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense. The Company has not recorded any such amounts in the periods presented.

The U.S. Internal Revenue Service has examined the Company's federal income tax returns through 2008, as well as 2010 and 2011. All other years are subject to examination, while various state income tax returns also remain subject to examination by state taxing authorities.

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Schedule I - Financial Information of Parent Company - Condensed Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash and cash equivalents	$ 153,227	$ 66,785	$ 33,575	$ 4,259
Deferred income taxes	(3,687)	2,512
Prepaid expenses and other assets	25,568	15,812
Total current assets	347,520	149,083
Property, plant and equipment, net	286,044	242,885
Intangible assets, net	4,867	4,609
Other assets	5,029	5,351
TOTAL ASSETS	740,855	495,784	484,447
CURRENT LIABILITIES:
Accounts payable	48,727	28,131
Accrued expenses	12,305	6,475
Deferred income taxes	5,084	624
Total current liabilities	98,237	39,844
Deferred income taxes	31,299	24,297
Total liabilities	142,822	87,977
COMMITMENTS AND CONTINGENCIES
Company stockholders’ equity:
Common stock ($.0001 par value; 300,000,000 shares authorized; 36,506,221 and 30,559,935 shares outstanding, respectively)	4	3
Common stock—additional paid-in-capital	359,671	273,989
Warrants—additional paid-in-capital	147	147
Retained earnings	238,134	53,823
Treasury stock (530,898 and 462,985 shares outstanding, respectively)	(3,886)	(3,198)
Total stockholders' equity	594,070	324,764	120,576	35,116
TOTAL LIABILITIES AND EQUITY	740,855	495,784
Series B Preferred Stock
CURRENT LIABILITIES:
SERIES B PREFERRED STOCK ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, respectively; redemption amount $3,583 and $74,878, respectively)	3,963	83,043
Parent Company
CURRENT ASSETS:
Cash and cash equivalents	1,581	11,287	0	1,457
Notes receivable	0	8,618
Deferred income taxes	7,018	0
Prepaid expenses and other assets	2,668	5,518
Total current assets	11,267	25,423
Property, plant and equipment, net	3,823	2,193
Intangible assets, net	4,749	4,476
Investment in subsidiaries	614,330	403,549
Intercompany receivables	1,177	721
Long term note receivables	0	14,093
Other assets	122	11
TOTAL ASSETS	635,468	450,466
CURRENT LIABILITIES:
Accounts payable	2,083	3,799
Accrued expenses	2,728	1,392
Deferred income taxes	0	529
Total current liabilities	4,811	5,720
Deferred income taxes	32,624	36,939
Total liabilities	37,435	42,659
COMMITMENTS AND CONTINGENCIES
Company stockholders’ equity:
Common stock ($.0001 par value; 300,000,000 shares authorized; 36,506,221 and 30,559,935 shares outstanding, respectively)	4	3
Common stock—additional paid-in-capital	359,671	273,989
Warrants—additional paid-in-capital	147	147
Retained earnings	238,134	53,823
Treasury stock (530,898 and 462,985 shares outstanding, respectively)	(3,886)	(3,198)
Total stockholders' equity	594,070	324,764
TOTAL LIABILITIES AND EQUITY	635,468	450,466
Parent Company | Series B Preferred Stock
CURRENT LIABILITIES:
SERIES B PREFERRED STOCK ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, respectively; redemption amount $3,583 and $74,878, respectively)	$ 3,963	$ 83,043

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Fair Value Measurement

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurement

FAIR VALUE MEASUREMENT

The fair value hierarchy prioritizes the inputs used in measuring fair value as follows:

• Level 1—Quoted prices for identical instruments in active markets.

• Level 2—Quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations, in which all significant inputs are observable in active markets.

• Level 3—Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

A summary of assets (liabilities) measured at fair value is as follows:

	As of December 31, 2013
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(19	)	$	—	$	(19	)	$	—
Commodity futures	62			—		62			—
Commodity swaps	(416		)	—		(416		)	—
Commodity options	133			—		133			—
	$	(240	)	$	—	$	(240	)	$	—

	As of December 31, 2012
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(46	)	$	—	$	(46	)	$	—
Commodity swaps	(171		)	—		(171		)	—
Commodity options	(245		)	—		(245		)	—
	$	(462	)	$	—	$	(462	)	$	—

The following is a reconciliation of the beginning and ending balances for liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the years ended as follows:

	Preferred Stock Embedded Derivatives			Seneca Holdco Liability
Ending balance - January 1, 2011	$	(61,761	)	$	(10,406	)
Total unrealized gains (losses)	7,939			(2,097		)
Purchase accounting consolidation	—			600
Ending balance - December 31, 2011	(53,822		)	(11,903		)
Total realized gains	11,975			349
Purchases	—			—
Issuance	—			—
Settlements	41,847			11,554
Ending balance - December 31, 2012	—			—
Total unrealized gains (losses)	—			—
Purchases	—			—
Issuance	—			—
Settlements	—			—
Ending balance - December 31, 2013	$	—		$	—

The Company used the following methods and assumptions to estimate fair value of its financial instruments:

Valuation of Preferred Stock embedded conversion feature derivatives: The estimated fair value of the derivative instruments embedded in the Company’s outstanding preferred stock was determined using the option pricing method to allocate the fair value of the underlying stock to the various components comprising the security, including the embedded derivative. The allocation was performed based on each class of preferred stock’s liquidation preference and relative seniority. Derivative liabilities are adjusted to reflect fair value at each period end. The effects of interactions between embedded derivatives are calculated and accounted for in arriving at the overall fair value of the financial instruments.

Interest rate swap: The fair value of the interest swap was determined based on a discounted cash flow approach using market observable swap curves.

Commodity derivatives: The instruments held by the Company consist primarily of futures contracts, swap agreements, purchased put options and written call options. The fair value of contracts based on quoted prices of identical assets in an active exchange-traded market is reflected in Level 1. Contract fair value is determined based on quoted prices of similar contracts in over-the-counter markets and are reflected in Level 2.

Seneca Holdco liability: The liability represents the combination of the Call Option and the Put Option related to the purchase of membership interest of Seneca Landlord. The fair value of the Seneca Holdco liability was determined using an option pricing model and represents the probability weighted present value of the gain that is realized upon exercise of each option.

Notes payable and lines of credit: The fair value of long-term debt and lines of credit was established using discounted cash flow calculations and current market rates reflecting Level 2 inputs.

The estimated fair values of the Company’s financial instruments, which are not recorded at fair value are as follows as of December 31:

	2013						2012
	Asset (Liability) Carrying Amount			Estimated Fair Value			Asset (Liability) Carrying Amount			Estimated Fair Value
Financial Liabilities:
Notes payable and lines of credit	$	(45,166	)	$	(45,094	)	$	(37,044	)	$	(37,000	)

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Stock-Based Compensation - Stock Appreciation Rights (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Common Stock options granted, exercised, forfeited, vested and exercisable
Number of Awards outstanding, Beginning Balance		0
Number of Awards, Exercised		0
Stock appreciation rights
Common Stock options granted, exercised, forfeited, vested and exercisable
Number of Awards outstanding, Beginning Balance	1,053,845.000
Number of Awards, Issued	335,057	1,055,805
Number of Awards, Exercised	(5,106)
Number of Awards, Forfeited	(10,727)	(1,960)
Number of Awards outstanding, Ending Balance	1,373,069.000	1,053,845.000
Number of Awards, Exercisable	250,370
Number of Awards, expected to vest	1,136,280
Weighted Average Issue Price, Granted	$ 12.85	$ 9.47
Weighted Average Issue Price, Exercised	$ 8.92
Weighted Average Issue Price, Forfeited	$ 10.85	$ 9.19
Weighted Average Issue Price, Outstanding	$ 10.28	$ 9.47
Weighted Average Issue Price, Exercisable	$ 9.49
Weighted Average Issue Price, expected to vest	$ 10.45
Weighted Average Contractual Term	8 years 7 months 6 days	9 years 3 months 18 days
Weighted Average Contractual Term, expected to vest	8 years 7 months 6 days

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Fair Value Measurement (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

Assets (liabilities) measured at fair value

The following table summarizes the fair values of the assets and liabilities recorded by the Company as a result of the consolidation of Bell, LLC:

	Allocation at January 1, 2011
Assets (liabilities) acquired:
Cash	$	22
Property, plant and equipment	5,881
Noncurrent assets	4
Other current liabilities	(17		)
Debt	(4,757		)
Other noncurrent liabilities	(567		)
Carrying value of previously held equity method investment	$	566

A summary of assets (liabilities) measured at fair value is as follows:

	As of December 31, 2013
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(19	)	$	—	$	(19	)	$	—
Commodity futures	62			—		62			—
Commodity swaps	(416		)	—		(416		)	—
Commodity options	133			—		133			—
	$	(240	)	$	—	$	(240	)	$	—

	As of December 31, 2012
	Total			Level 1		Level 2			Level 3
Interest rate swap	$	(46	)	$	—	$	(46	)	$	—
Commodity swaps	(171		)	—		(171		)	—
Commodity options	(245		)	—		(245		)	—
	$	(462	)	$	—	$	(462	)	$	—

Liabilities measured at fair value on a recurring basis

The following is a reconciliation of the beginning and ending balances for liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the years ended as follows:

	Preferred Stock Embedded Derivatives			Seneca Holdco Liability
Ending balance - January 1, 2011	$	(61,761	)	$	(10,406	)
Total unrealized gains (losses)	7,939			(2,097		)
Purchase accounting consolidation	—			600
Ending balance - December 31, 2011	(53,822		)	(11,903		)
Total realized gains	11,975			349
Purchases	—			—
Issuance	—			—
Settlements	41,847			11,554
Ending balance - December 31, 2012	—			—
Total unrealized gains (losses)	—			—
Purchases	—			—
Issuance	—			—
Settlements	—			—
Ending balance - December 31, 2013	$	—		$	—

Estimated fair values of the Company's financial instruments

The estimated fair values of the Company’s financial instruments, which are not recorded at fair value are as follows as of December 31:

	2013						2012
	Asset (Liability) Carrying Amount			Estimated Fair Value			Asset (Liability) Carrying Amount			Estimated Fair Value
Financial Liabilities:
Notes payable and lines of credit	$	(45,166	)	$	(45,094	)	$	(37,044	)	$	(37,000	)

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Derivative Instruments - Gain (Loss) Recognized in Income on Derivatives (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ (5,630)	$ 7,348	$ 11,537
Embedded derivative | Change in fair value of preferred stock conversion feature embedded derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	0	11,975	7,939
Interest rate swap | Other income (loss)
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	26	(5)	571
Commodity futures | Cost of goods sold - Biodiesel
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	258	(4)	(97)
Commodity swaps | Cost of goods sold - Biodiesel
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	(5,775)	(4,254)	2,557
Commodity options | Cost of goods sold - Biodiesel
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivatives	$ (139)	$ (364)	$ 567

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Other Assets (Tables)

12 Months Ended

Dec. 31, 2013

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Summary of prepaid expense and other current assets

Prepaid expenses and other current assets consist of the following at December 31:

	2013		2012
Commodity derivatives and related collateral, net	$	13,675	$	7,637
Prepaid insurance	1,804		1,109
Prepaid service contracts	610		552
Prepaid storage	—		515
Deposits	293		857
RIN inventory	6,455		99
Income taxes receivable	2,197		4,735
Other	534		308
Total	$	25,568	$	15,812

Summary of other noncurrent assets

Other noncurrent assets consist of the following at December 31:

	2013		2012
Debt issuance costs (net of accumulated amortization of $715 and $923, respectively)	$	832	$	946
Spare parts inventory	3,671		3,546
Other	526		859
Total	$	5,029	$	5,351

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Fair Value Measurement - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	$ 240	$ 462
Interest rate swap
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	19	46
Commodity futures
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(62)
Commodity swaps
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	416	171
Commodity options
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(133)	245
Level 1
Assets (liabilities) measured at fair value
Assets (liabilities), fair value
Level 1 | Interest rate swap
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Level 1 | Commodity futures
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0
Level 1 | Commodity swaps
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Level 1 | Commodity options
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Level 2
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	240	462
Level 2 | Interest rate swap
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	19	46
Level 2 | Commodity futures
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(62)
Level 2 | Commodity swaps
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	416	171
Level 2 | Commodity options
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(133)	245
Level 3
Assets (liabilities) measured at fair value
Assets (liabilities), fair value
Level 3 | Interest rate swap
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Level 3 | Commodity futures
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0
Level 3 | Commodity swaps
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Level 3 | Commodity options
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	$ 0	$ 0

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Consolidated Statements of Operations (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Selling, general and administrative expenses	$ 37	$ 158	$ 1,505
Interest expense	$ 30	$ 32	$ 761

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Income Taxes - Valuation Allowance for Deferred Tax Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Beginning of year balance	$ 0	$ 7,337	$ 38,662
Changes in valuation allowance charged to income	76,916	(7,337)	(31,325)
End of year balance	$ 76,916	$ 0	$ 7,337

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Consolidation

The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiaries, and entities which it controls. All significant intercompany balances and transactions have been eliminated for consolidated reporting purposes.

Cash and Cash Equivalents

Cash and cash equivalents consists of money market funds and demand deposits with financial institutions. The Company considers all highly liquid debt instruments purchased with an original maturity of three months or less to be cash equivalents.

Accounts Receivable

Accounts receivable are carried at invoiced amount less allowance for doubtful accounts. Management estimates the allowance for doubtful accounts based on existing economic conditions, the financial conditions of customers, and the amount and age of past due accounts. Receivables are considered past due if full payment is not received by the contractual due date. Past due accounts are generally written off against the allowance for doubtful accounts only after reasonable collection attempts have been exhausted. Activity regarding the allowance for doubtful accounts was as follows:

Balance, January 1, 2011	$	316
Amount charged to selling, general and administrative expenses	1,389
Charge-offs, net of recovery	(270		)
Balance, December 31, 2011	1,435
Amount charged to selling, general and administrative expenses	563
Charge-offs, net of recovery	(26		)
Balance, December 31, 2012	1,972
Amount charged to selling, general and administrative expenses	309
Charge-offs, net of recovery	(157		)
Balance, December 31, 2013	$	2,124

Inventories

Inventories are valued at the lower of cost or market. There were no lower of cost or market adjustments made to the inventory values reported as of December 31, 2013 and 2012. Cost is determined based on the first-in, first-out method.

Renewable Identification Numbers (RINs)

When the Company produces and sells a gallon of biodiesel, 1.5 RINs per gallon are generated. RINs are used to track compliance with Renewable Fuel Standards (RFS2). RFS2 allows the Company to attach between zero and 2.5 RINs to any gallon of biodiesel. When the Company sells a gallon of biodiesel, 1.5 RINs are generally attached. As a result, a portion of the selling price for a gallon of biodiesel is generally attributable to RFS2 compliance. However, RINs that the Company generates are a form of government incentive and not a result of the physical attributes of the biodiesel production. Therefore, no cost is allocated to the RIN when it is generated, regardless of whether the RIN is transferred with the biodiesel produced or held by the Company pending attachment to other biodiesel production sales. In addition, the Company also obtains RINs from third parties who have separated the RINs from gallons of biomass-based diesel. From time to time, the Company holds varying amounts of these separated RINs for resale. RINs obtained from third parties are initially recorded at their cost and are subsequently revalued at the lower of cost or market as of the last day of each accounting period and the resulting adjustments are reflected in costs of goods sold for the period. The value of RINs obtained from third parties is reflected in “Prepaid expenses and other assets” on the consolidated balance sheet. The cost of goods sold related to the sale of these RINs is determined using the average cost method, while market prices are determined by RIN values, as reported by the Oil Price Information Service (OPIS).

Derivative Instruments

Derivatives are recorded on the balance sheet at fair value with changes in fair value recognized in current period earnings.

Valuation of Series A Preferred Stock Conversion Feature Embedded Derivatives

The conversion feature of the Series A Preferred Stock was accounted for as an embedded derivative prior to the conversion of Series A Preferred Stock in January 2012. This embedded derivative was a liability representing the estimated fair value of Series A Preferred Stock holders right to receive the fair market value of the Common Stock issuable upon conversion of the Series A Preferred Stock on the redemption date. The value of this derivative was adjusted each quarter based on changes in the estimated fair value, and a corresponding income or expense was recorded in change in fair value of the Preferred Stock conversion feature embedded derivatives in the Company’s statements of operations. The Company used the Black-Scholes options pricing model to estimate the fair value and assumptions included the expected volatility of the value of the Company’s equity, the expected conversion date, an appropriate risk-free interest rate and the estimated fair value of the Company’s equity.

Valuation of Seneca Holdco Liability

The Company recorded a liability (Seneca Holdco Liability) at fair value, with changes in value recognized currently in earnings, for its obligation under a Put/Call Agreement with Seneca Holdco, LLC (Seneca Holdco) to purchase Seneca Landlord, LLC (Seneca Landlord) whose assets consisted primarily of a 60 mmgy biodiesel production facility in Seneca, Illinois (Seneca Facility) until the Company exercised its option and acquired the Seneca Facility in January 2012. Seneca Landlord was indirectly owned by three significant stockholders of the Company or their affiliates: Bunge North America, Inc. USRG Holdco IX, LLC, and West Central Cooperative.

The fair value of the Seneca Holdco Liability was determined by probability weighting the present value of gains or losses realized under each option in the Put/Call Agreement. The Put/Call Agreement had a term of seven years and was exercisable by either party at a price based on a pre-defined formula. The valuation required the development and use of highly subjective assumptions including (i) the value of the Landlord’s equity, (ii) expectations regarding future changes in the value of the Landlord’s equity, (iii) expectations about the probability of either option being exercised, including the Company’s ability to list its securities on an exchange or complete a public offering and (iv) an appropriate risk-free rate. Company management considered current public equity markets, relevant regulatory issues, industry conditions and the Company’s position within the industry when estimating the probability that the Company would raise additional capital.

Preferred Stock Accretion

The Company accreted the carrying value of the Series A Preferred Stock to its redemption value until January 2012 when it was converted in connection with the Initial Public Offering (IPO). Accretion of $1,808 and $25,343 for the years ended December 31, 2012 and 2011, respectively, was recognized as a reduction to income available to common stockholders in accordance with paragraph 15 of ASC Topic 480-10-S99.

The Company recorded the Series B Preferred Stock at fair value, which was a premium over its redemption value; therefore no accretion is recorded for the Series B Preferred Stock.

Non-monetary Exchanges

The Company records assets acquired and liabilities assumed through the exchange of non-monetary assets based on the fair value of the assets and liabilities acquired or the fair value of the consideration exchanged, whichever is more readily determinable.

Property, Plant and Equipment

Property, plant and equipment is recorded at cost less accumulated depreciation. Maintenance and repairs are expensed as incurred. Depreciation expense is computed on a straight-line method based upon estimated useful lives of the assets. Estimated useful lives are as follows:

Automobiles and trucks	5 years
Computers and office equipment	5 years
Office furniture and fixtures	7 years
Machinery and equipment	5-30 years
Leasehold improvements	the lesser of the lease term or 30 years
Buildings and improvements	30-40 years

As of December 31, 2013, 2012 and 2011, the Company capitalized interest incurred on debt during the construction of assets of $335, $33 and $0, respectively.

Goodwill

Goodwill is tested for impairment annually on July 31 or when impairment indicators exist. Goodwill is allocated and tested for impairment by reporting units. The Company’s reporting units consist of its two operating segments, the biodiesel operating segment and services operating segment. The analysis is based on a comparison of the carrying value of the reporting unit to its fair value, determined utilizing both a discounted cash flow methodology and a market comparable methodology. The determination of whether or not the asset has become impaired involves a significant level of judgment in the assumptions underlying the approach used to determine the value of the Company’s reporting units. Changes in estimates of future cash flows caused by items such as unforeseen events or sustained unfavorable changes in market conditions could negatively affect the fair value of the reporting unit’s goodwill asset and result in an impairment charge. The annual impairment test determined that the fair value of the biodiesel operating segment exceeded its carrying value by approximately 43% and the services operating segment exceeded its carrying value by approximately 20%. There was no impairment of goodwill recorded in any of the periods presented.

The following table summarizes goodwill for the Company’s business segments:

	Biodiesel		Services		Total
Beginning balance - January 1, 2012	$	68,784	$	16,080	$	84,864
Acquisitions	—		—		—
Ending balance - December 31, 2012	68,784		16,080		84,864
Acquisitions	—		—		—
Ending balance - December 31, 2013	$	68,784	$	16,080	$	84,864

Impairment of Assets

The Company tests its long-lived assets for recoverability when events or circumstances indicate that its carrying amount may not be recoverable. Significant assumptions used in the undiscounted cash flow analysis include the projected demand for biodiesel based on annual renewable fuel volume obligations under the Renewable Fuel Standards (RFS2), the Company's capacity to meet that demand, the market price of biodiesel and the cost of feedstock used in the manufacturing process. For facilities under construction, estimates also include the capital expenditures necessary to complete construction of the plant. The Company’s facilities under construction are expected to have substantially similar operating capabilities and results as the current operating facilities. Such operating capabilities would include similar feedstock capabilities, similar access to low cost feedstocks, proximity to shipping from our vendors and to our customers and our ability to transfer best practices among the Company's various operating facilities to maximize production volumes and reduce operating costs. There were no asset impairment charges for the years ended December 31, 2013, 2012 and 2011.

Investments

The Company has made investments in several biofuels businesses. These investments are recorded at cost and assessed for impairment at each reporting period. There were no impairment charges for the years ended December 31, 2013, 2012 and 2011.

Unfavorable Lease Obligation

The Company assumed a ground lease of a terminal facility in Houston, Texas as part of an acquisition which required the Company to pay above market rentals through the remainder of the lease term expiring in 2021. The unfavorable lease obligation is amortized over the contractual period the Company is required to make rental payments under the lease. The amount expected to be amortized each year for the remainder of the contract is $1,129.

Revenue Recognition

The Company recognizes revenues from the following sources:

• the sale of biodiesel and its co-products, as well as Renewable Identification Numbers (RINs) and raw material feedstocks, purchased or produced by the Company at owned manufacturing facilities and manufacturing facilities with which the Company has tolling arrangements;

• the resale of biodiesel, RINs and raw material feedstocks acquired from third parties;

• fees received under toll manufacturing agreements with third parties;

• incentives received from federal and state programs for renewable fuels; and

• fees received for the marketing and sales of biodiesel produced by third parties and from managing operations of third party facilities.

Biodiesel, including RINs, and raw material feedstock revenues are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Fees received under toll manufacturing agreements with third parties are generally established as an agreed upon amount per gallon of biodiesel produced. The fees are recognized where there is persuasive evidence of an arrangement, delivery has occurred, the price has been fixed or is determinable and collectability can be reasonably assured.

Revenues associated with the governmental incentive programs are recognized when the amount to be received is determinable, collectability is reasonably assured and the sale of product giving rise to the incentive has been recognized. The Company received funds from the United States Department of Agriculture (USDA) in the amount of $2,813, $1,161 and $9,913 for the years ended December 31, 2013, 2012 and 2011, respectively. The Company records amounts when it has received notification of a payment from the USDA or is in receipt of the funds and records the awards under the Program in "Biodiesel government incentives" as they are closely associated with the Company's biodiesel production activities.

While in general the Company has not historically offered sales incentives to customers, the uncertainty around the reinstatement of the federal blenders tax credit led to the introduction of such an incentive during 2012. Specifically, during 2012 the Company negotiated contracts with certain customers to allow such customers to share in the value of federal blenders tax payments if the law were to be reinstated. The federal blenders tax credit was reinstated on January 2, 2013 and the Company recognized $69,534 of cash payments owed to customers as a reduction of Biodiesel sales revenue. The Company did not have similar contracts before 2012.

Freight

Amounts billed to customers for freight are included in biodiesel sales. Costs incurred for freight are included in costs of goods sold.

Advertising Costs

Advertising costs are charged to expense as they are incurred. Advertising and promotional expenses were $648, $485 and $251 for the years ended December 31, 2013, 2012 and 2011, respectively.

Research and Development

The Company expenses research and development costs as incurred. Research and development costs totaled $258, $14 and $22 for the years ended December 31, 2013, 2012 and 2011, respectively.

Employee Benefits Plan

The Company sponsors an employee savings plan under Section 401(k) of the Internal Revenue Code. The Company makes matching contributions equal to 50% of the participant’s pre-tax contribution up to a maximum of 6% of the participant’s eligible earnings. Total expense related to the Company’s defined contribution plan was approximately $533, $456 and $323 for the years ended December 31, 2013, 2012 and 2011, respectively.

Stock-Based Compensation

Stock-based compensation expense is measured at the grant-date fair value of the award and recognized as compensation expense over the vesting period.

Income Taxes

Deferred income taxes are recognized for differences between the financial statement and tax bases of assets and liabilities at enacted statutory tax rates in effect for the years in which differences are expected to reverse. Consideration is given to positive and negative evidence related to the realization of the deferred tax assets and valuation allowances are established to reduce deferred tax assets to the amounts expected to be realized. Significant judgment is required in making this assessment.

Recapitalization

In connection with the Company's IPO on January 24, 2012, the Company gave effect to the one-time conversion of Series A Preferred Stock and certain common stock warrants into 7,660,612 shares of newly-issued Common Stock and 2,999,493 shares of $74,987 aggregate liquidation preference Series B Preferred Stock with cumulative dividends of 4.5% per annum. All Series A Preferred Stock was converted and no Series A Preferred Stock remains outstanding. The Company recorded the effects from the exchange of Series A Preferred Stock for Series B Preferred Stock and Common Stock as an extinguishment in accordance with ASC Topic 260-10-S99-2.

Accordingly, the Company recognized an addition to the income available to common shareholders in the amount of $39,107. This amount was determined by comparing the fair value of the Series B Preferred Stock and Common Stock issued of $152,327 to the carrying amount of the Series A preferred shares that were redeemed of $191,434. The excess of the carrying amount of Series A Preferred Stock that were redeemed over the fair value of the Series B Preferred Stock and Common Stock that were issued was recorded as an increase to additional paid-in capital and was added to net earnings available to common shareholders of $39,107. The Series B Preferred Stock fair value was determined using Monte Carlo simulation methodology with the assistance of external third-party experts to calculate the fair-value using the Company's common stock at time of conversion. The significant assumptions included the volatility rate and risk-free rate based upon the yield of the U.S. Industrials B curve.

Variable Interest Entities

The Company uses both quantitative and qualitative analysis when evaluating its variable interest entities (VIE’s) and determining the primary beneficiary (PB) of a VIE. The Company consolidates a VIE if it has both (a) the power to direct the activities of the VIE that most significantly impact the entity’s economic performance and (b) the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE.

Concentrations

Certain customers represented greater than 10% of the total consolidated revenues of the Company for the three years ended December 31, 2013, 2012 and 2011. All customer amounts disclosed in the table are related to biodiesel sales:

	2013		2012		2011
Customer A	$	243,258	$	363,372	$	189,773

The Company maintains cash balances at financial institutions, which may at times exceed the $250 coverage by the U.S. Federal Deposit Insurance Company.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements and reported amounts of revenues and expenses during the reporting periods. These estimates are based on information that is currently available to management and on various assumptions that the Company believes to be reasonable under the circumstances. Actual results could differ from those estimates.

New Accounting Pronouncements

In July 2013, the FASB issued ASU 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (Topic 740). The amendments to ASU 2013-11 provide guidance on the financial statement presentation of unrecognized tax benefit when a net operating loss carryforward, a similar loss, or a tax credit carryforward exists. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. The Company will reflect the impact of these amendments beginning with the Company's Quarterly Report on Form 10-Q for the period ending March 31, 2014. The Company does not anticipate a material impact to the Company's financial position, results of operations or cash flows as a result of this change.

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Summary of Significant Accounting Policies - (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended								1 Months Ended			12 Months Ended				12 Months Ended
	Jan. 31, 2012	Dec. 31, 2013 renewable_identification_number segment gal	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Minimum renewable_identification_number	Dec. 31, 2013 Maximum renewable_identification_number	Dec. 31, 2012 Series A Preferred Stock	Dec. 31, 2011 Series A Preferred Stock	Jan. 24, 2012 Series A Preferred Stock	Jan. 31, 2012 Class A Common Stock	Jan. 24, 2012 Series B Preferred Stock	Jan. 31, 2012 Series B Preferred Stock	Dec. 31, 2013 Series B Preferred Stock	Dec. 31, 2012 Series B Preferred Stock	Jan. 24, 2012 Series B Preferred Stock and Common Stock [Member]	Jan. 31, 2012 Seneca Landlord, LLC gal	Dec. 31, 2013 Biodiesel	Dec. 31, 2013 Services
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock redemption amount											$ 74,987		$ 3,583	$ 74,878
Preferred Stock, Dividend Rate, Percentage	4.50%										4.50%		4.50%
Maturity period of cash and cash equivalents		three months or less
RINs per gallon		1.5			0	2.5
Term of Put and call option		7 years
Accretion							1,808	25,343
Capitalization of interest incurred on debt during construction		335	33	0
Number of operating segments		2
Minimum percentage increase in fair value of each of the reporting units over its carrying value through annual impairment test																	43.00%	20.00%
Production capacity per year		257,000,000														60,000,000
Amortization Of Long Term Capital Lease Obligations		1,129
Revenues		2,813	1,161	9,913
Biodiesel government incentives		290,393	8,326	65,822													69,534
Advertising Costs		648	485	251
Research and Development		258	14	22
Matching contributions		50.00%
Participants eligible earnings		6.00%
Total expense related to the Company's defined contribution plan		533	456	323
Conversion of Class A common stock/Series B Preferred Stock to common stock, Shares										7,660,612	2,999,493	2,999,493
Effects of recapitalization		0	39,107	0
Series B Preferred Stock and Common Stock, Fair Value															152,327
SERIES B PREFERRED STOCK ($.0001 par value; 3,000,000 shares authorized; 143,313 and 2,995,106 shares outstanding, respectively; redemption amount $3,583 and $74,878, respectively)									191,434				3,963	83,043
Concentration Risk Cash Balances																	$ 250

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Accrued Expenses and Other Liabilities - Other Noncurrent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of other noncurrent liabilities
Fair value of interest rate swap	$ 19	$ 46
Liability for unrecognized tax benefits	1,900	1,900	1,500	1,500
Deferred grant revenue	745	745
Straight-line lease liability	3,581	4,011
Bell, LLC member investment on consolidation	593	590
Total	$ 6,838	$ 7,292

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Derivative Instruments - Derivatives Subject to an Enforceable Master Netting Arrangement (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Asset Derivatives, Gross amounts recognized	$ 14,221	$ 8,501
Asset Derivatives, Gross amounts offset in the Statement of Financial Position	(325)	(448)
Asset Derivatives, Net amounts offset in the Statement of Financial Position	13,896	8,053
Asset Derivatives, Gross amounts not offset in the Statement of Financial Position	(13,896)	(8,053)
Asset Derivatives, Net amount	0	0
Liability Derivatives, Gross amounts recognized	565	910
Liability Derivatives, Gross amounts offset in the Statement of Financial Position	(325)	(448)
Liability Derivatives, Net amounts presented in the Statement of Financial Position	240	462
Liability Derivatives, Gross amounts not offset in the Statement of Financial Position	0	0
Liability Derivatives, Net amount	$ 240	$ 462

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Acquisitions and Equity Transactions - Soy Energy, LLC Purchase Price Allocation (Details) (Soy Energy, LLC, USD $) In Thousands, unless otherwise specified	Jul. 30, 2013
Soy Energy, LLC
Summary of allocations of the purchase price to the fair values of the assets acquired and liabilities assumed at the date of acquisition
Property, plant and equipment	$ 16,085
Other current liabilities	(17)
Total	$ 16,068

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Net Income Per Share

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Net Income Per Share

NET INCOME PER SHARE

Basic net income per common share is presented in conformity with the two-class method required for participating securities. Participating securities include, or have included, Series A Preferred Stock, Series B Preferred Stock and RSU's. Under the two-class method, net income is reduced for distributed and undistributed dividends earned in the current period. The remaining earnings are then allocated to common stock and the participating securities.

The holders of the Series A Preferred Stock accrued dividends at the rate of $0.88 per share per annum. Dividends were cumulative, accrued on a daily basis from the date of issuance and compounded annually from the date of issuance. If dividends on the Series A Preferred Stock had not been paid or declared, the deficiency would have paid or declared before any dividend is declared for Common Stock. Dividends in arrears did not bear interest. Holders of the Series A Preferred Stock were allowed to participate in the dividends to common stockholders in the event that dividends on Common Stock exceed that of the Series A Preferred Stock as if the Series A Preferred Stock had been converted to Common Stock at the beginning of the year. Series A Preferred Stock was converted to common shares at the time of the Company's initial public offering.

The holders of the Series B Preferred Stock accrue dividends at a rate of $1.125 per share per annum. Dividends are cumulative, accrue on a daily basis from the date of issuance and compound annually from the date of issuance. If dividends on the Series B Preferred Stock have not been paid or declared, the deficiency shall be paid or declared before any dividend is declared for Common Stock. Dividends in arrears do not bear interest. Holders of the Series B Preferred Stock are allowed to participate in the dividends to common stockholders in the event that dividends on Common Stock exceed that of the Series B Preferred Stock as if the Series B Preferred Stock had been converted to Common Stock at the beginning of the year.

The Company calculates the effects of participating securities on diluted earnings per share (EPS) using both the “if-converted or treasury stock” and "two-class" methods and discloses the method which results in a more dilutive effect. The effects of Common Stock options, warrants, and stock appreciation rights on diluted EPS are calculated using the treasury stock method unless the effects are anti-dilutive to EPS.

The following potentially dilutive weighted average securities were excluded from the calculation of diluted net income (loss) per share attributable to common stockholders during the periods presented as the effect was anti-dilutive:

	Year Ended December 31,
	2013	2012	2011
Options to purchase common stock	87,026	87,026	87,207
Restricted stock units	—	754,359	1,230,092
Stock appreciation rights	1,030,926	1,196,975	—
Warrants to purchase common stock	—	35,987	355,886
Redeemable preferred shares	—	—	5,382,209
Total	1,117,952	2,074,347	7,055,394

The following table presents the calculation of diluted net income per share for the years ended December 31, 2013 and 2012. For the year ended December 31, 2011, the effect from all convertible securities were anti-dilutive (in thousands, except share and per share data):

	2013			2012
Net income attributable to the Company's common stockholders - Basic	$	165,254		$	43,482
Less: effects of recapitalization	—			(39,107		)
Plus: change in undistributed dividends allocated to preferred stockholders	—			823
Plus: distributed dividends to Preferred Stockholders	2,055			3,156
Plus: accretion of Series A Preferred Stock to redemption value	—			1,808
Plus: (gain) loss due to change in fair value of Series A Preferred Stock conversion feature embedded derivatives	—			(11,975		)
Plus: effect of participating securities	19,057			12,097
Net income attributable to common stockholders	186,366			10,284
Less: effect of participating securities	(21,108		)	(1,108		)
Net income attributable to the Company's common stockholders - Diluted	$	165,258		$	9,176
Shares:
Weighted-average shares outstanding - Basic	33,045,164			28,381,676
Adjustment to reflect conversion of preferred stock	—			5,958,790
Adjustment to reflect stock appreciation right conversions	7,065			—
Adjustment to reflect warrants to purchase common stock	650			—
Weighted-average shares outstanding - Diluted	33,052,879			34,340,466
Net income per share attributable to common stockholders - Diluted	$	5.00		$	0.27

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Schedule I - Financial Information of Parent Company - Condensed Statements of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Income from services provided to subsidiaries									$ 127	$ 237	$ 222
Total income	32,141	45,163	38,955	77,051	(995)	(7,111)	19,935	4,072	193,310	15,901	92,732
Change in fair value of preferred stock conversion feature embedded derivatives									0	11,975	7,939
Change in fair value of Seneca Holdco liability									0	349	(2,097)
Other income									388	167	930
Interest expense									(2,397)	(4,679)	(8,095)
Income before income taxes and income (loss) from equity investments									191,301	23,713	91,409
Income tax benefit (expense)									(4,935)	(1,454)	(2,982)
Income (loss) from equity investments									0	0	442
Net income	30,130	86,703	23,130	46,403	(151)	(6,040)	14,433	14,017	186,366	22,259	88,869
EFFECTS OF RECAPITALIZATION									0	39,107	0
LESS—ACCRETION OF SERIES A PREFERRED STOCK TO REDEMPTION VALUE									0	(1,808)	(25,343)
LESS—CHANGES IN UNDISTRIBUTED DIVIDENDS ALLOCATED TO PREFERRED STOCKHOLDERS									0	(823)	(12,723)
LESS—DISTRIBUTED DIVIDENDS TO PREFERRED STOCKHOLDERS									(2,055)	(3,156)	0
LESS—EFFECT OF PARTICIPATING PREFERRED STOCK									(16,272)	(8,952)	(4,186)
LESS—EFFECT OF PARTICIPATING SHARE-BASED AWARDS									(2,785)	(3,145)	(3,864)
Net income attributable to the company's common stockholders									165,254	43,482	42,753
Parent Company
Condensed Financial Statements, Captions [Line Items]
Equity in earnings of subsidiaries of continuing operations									178,100	20,071	98,432
Income from services provided to subsidiaries									4,760	5,138	500
Total income									182,860	25,209	98,932
General and administrative expenses									(17,404)	(25,473)	(13,019)
Change in fair value of preferred stock conversion feature embedded derivatives									0	11,975	7,939
Change in fair value of Seneca Holdco liability									0	349	(2,097)
Other income									39	109	35
Interest expense									(2)	(199)	(14)
Interest income									1,504	414	134
Income before income taxes and income (loss) from equity investments									166,997	12,384	91,910
Income tax benefit (expense)									19,369	9,804	(2,982)
Income (loss) from equity investments									0	71	(59)
Net income									186,366	22,259	88,869
EFFECTS OF RECAPITALIZATION									0	39,107	0
LESS—ACCRETION OF SERIES A PREFERRED STOCK TO REDEMPTION VALUE									0	(1,808)	(25,343)
LESS—CHANGES IN UNDISTRIBUTED DIVIDENDS ALLOCATED TO PREFERRED STOCKHOLDERS									0	(823)	(12,723)
LESS—DISTRIBUTED DIVIDENDS TO PREFERRED STOCKHOLDERS									(2,055)	(3,156)	0
LESS—EFFECT OF PARTICIPATING PREFERRED STOCK									(16,272)	(8,952)	(4,186)
LESS—EFFECT OF PARTICIPATING SHARE-BASED AWARDS									(2,785)	(3,145)	(3,864)
Net income attributable to the company's common stockholders									$ 165,254	$ 43,482	$ 42,753

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Property, Plant and Equipment - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Property, plant and equipment
Property, Plant and Equipment	$ 248,334	$ 185,721
Accumulated depreciation	(37,362)	(28,097)
Property plant and equipment net excluding construction in progress	210,972	157,624
Construction in process	75,072	85,261
Total	286,044	242,885
Consolidated VIE's
Property, plant and equipment
Property, Plant and Equipment	6,694	6,694
Accumulated depreciation	(1,514)	(1,289)
Total	5,180	5,405
Land
Property, plant and equipment
Property, Plant and Equipment	2,442	987
Land | Consolidated VIE's
Property, plant and equipment
Property, Plant and Equipment	404	404
Buildings and improvements
Property, plant and equipment
Property, Plant and Equipment	72,453	50,688
Buildings and improvements | Consolidated VIE's
Property, plant and equipment
Property, Plant and Equipment	6,290	6,290
Leasehold improvements
Property, plant and equipment
Property, Plant and Equipment	6,887	6,879
Machinery and equipment
Property, plant and equipment
Property, Plant and Equipment	$ 166,552	$ 127,167

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Inventories (Tables)

12 Months Ended

Dec. 31, 2013

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following at December 31:

	2013		2012
Raw materials	$	13,393	$	9,835
Work in process	1,456		448
Finished goods	70,965		34,923
Total	$	85,814	$	45,206

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Borrowings

12 Months Ended

Dec. 31, 2013

Debt Disclosure [Abstract]

Borrowings

BORROWINGS

The Company’s term borrowings at December 31 are as follows:

	2013		2012
REG Danville term loan	$	5,626	$	10,060
REG Newton term loan	18,143		21,175
REG Mason City term loan	5,135		—
Other	1,247		1,496
Total notes payable	$	30,151	$	32,731
Bell, LLC promissory note - variable interest entity	$	4,029	$	4,313

REG Danville, LLC

On November 3, 2011, REG Danville, LLC entered into an Amended and Restated Loan Agreement with Fifth Third Bank (Fifth Third Loan). The renewed Fifth Third Loan had a three year term with an automatic one year extension upon certain cumulative principal payment thresholds being met. The loan requires monthly principal payments of $150 and interest based on a rate of LIBOR plus 5% per annum. The effective rate was 5.17% at December 31, 2013. The loan is secured by the Company's Danville facility. The loan agreement contains various loan covenants that restrict REG Danville’s ability to take certain actions, including prohibiting it in certain circumstances from making payments to the Company. The Fifth Third Loan requires semi-annual excess cash flow payments which began on December 31, 2011. REG Danville must pay Fifth Third a principal payment in the amount equal to 50% of REG Danville's Excess Cash Flow. The Fifth Third Loan agreement defines excess cash flow as REG Danville’s EBITDA plus certain affiliate payments less principal payments, interest expense, taxes and unfunded maintenance capital expenditures. The excess cash flow payment required for December 31, 2013 and 2012 are $1,425 and $1,429, respectively.

On March 4, 2013, REG Danville entered into the First Amendment to the Amended and Restated Loan Agreement (First Amendment) with Fifth Third Bank. The First Amendment includes changes to the debt covenants based upon the Company executing a tax sharing agreement with REG Danville. The tax sharing agreement provides that REG Danville will share the liability for income taxes via an allocation based upon a separate-return approach. Although the Company is not directly compensated for the use of carry-forward attributes, the tax sharing agreement allows each affiliate to benefit from net operating losses and tax credits that each generates.

On January 28, 2014, REG Danville received approval from Fifth Third Bank of extending the maturity date of its debt to November 3, 2015 based on meeting requirements of cumulative principal payments of $6,400 towards the debt.

REG Newton, LLC

On December 4, 2013, REG Newton, LLC entered into an Amended and Restated Master Loan Agreement, effective December 1, 2013, with AgStar Financial Services, PCA (AgStar) which replaced the existing Master Loan Agreement, dated March 8, 2010. The Amended and Restated Agreement extends the maturity of the existing term loan by five years until December 1, 2018 and increases the term loan by $5,000. The REG Newton term debt is secured by all plant assets owned by REG Newton. Interest is to be accrued based on 30-day LIBOR plus 400 basis points (effective rate at December 31, 2013 was 4.17%). REG Newton is required to make monthly principal and interest payments of approximately $270. The loan agreement requires REG Newton to make an annual payment equal to 50% of its Excess Cash Flow calculated based upon the prior year’s audited financial statements within 120 days of the fiscal year end. The AgStar Loan agreement defines Excess Cash Flow as EBITDA, less the sum of required debt payments, interest expense, up to $500 in maintenance capital expenditure and allowed distributions. There were no required excess cash flow payments for 2013 or 2012.

REG Mason City, LLC

On July 30, 2013, REG Mason City entered into an agreement with Soy Energy (Soy Energy Loan). The Soy Energy Loan has a six-year term and is secured by the Mason City facility. The loan requires interest only payments for the first eight months and monthly principal and interest payments of approximately $92 starting in April 2014. Interest is based on a fixed rate of 5%. The loan agreement contains a covenant that restricts REG Mason City's ability to take certain actions, including prohibiting it in certain circumstances from making payments to the Company. The Soy Energy Loan requires annual excess cash flow payments equal to 50% of its excess cash flow. The agreement defines excess cash flow as REG Mason City's EBITDA less principal payments, interest expense, and maintenance capital expenditures. There was no required excess cash flow payment for 2013.

REG Marketing & Logistics Group, LLC & REG Services Group, LLC

The Company’s revolving borrowings at December 31 are as follows:

	2013		2012
Total revolving loans (current)	$	10,986	$	—

The Company has a revolving credit facility that two of the Company’s subsidiaries entered into on December 23, 2011 with a bank group and Wells Fargo Capital Finance, LLC, as agent, (the "Wells Fargo Revolver"). The Company guaranteed the obligations of its subsidiaries under the Wells Fargo Revolver, which provides for the extension of revolving loans in an aggregate principal amount not to exceed $40,000, based on eligible inventory, accounts receivable and blenders tax credits of the subsidiary borrowers and the inventory of certain affiliates. There is the opportunity for additional lender increases up to a maximum commitment of $60,000. The Wells Fargo Revolver has a stated maturity date of December 23, 2016. Amounts borrowed under the Wells Fargo Revolver bear interest, in the case of LIBOR rate loans, at a per annum rate equal to the LIBOR rate plus the LIBOR Rate Margin (as defined), which may range from 2.50% to 3.25%. All other amounts borrowed that are not LIBOR rate loans bear interest at a rate equal to the greatest of (i) 1.75% per annum, (ii) the Federal Funds Rate plus 0.5%, (iii) the LIBOR Rate plus 1.5%, or (iv) the “prime rate” plus 1.00% to 1.75%. The effective interest rate was 3.75% at December 31, 2013.

The Wells Fargo Revolver contains various loan covenants that restrict each subsidiary borrower’s ability to take certain actions, including restrictions on incurrence of indebtedness, creation of liens, mergers or consolidations, dispositions of assets, repurchase or redemption of capital stock, making certain investments, entering into certain transactions with affiliates or changing the nature of the subsidiary’s business. In addition, the subsidiary borrowers are required to maintain a Fixed Charge Coverage Ratio (as defined in the Wells Fargo Revolver) of at least 1.0 to 1.0 and to have Excess Availability (as defined in the Wells Fargo Revolver) of at least $4,000. The new revolving credit agreement is secured by the subsidiary borrowers’ membership interests and substantially all of their assets, and the inventory of certain subsidiaries, subject to a $25,000 limitation.

The credit agreements of the subsidiaries mentioned above contain various customary affirmative and negative covenants. Many of the agreements, but not all, also contain certain financial covenants, including a current ratio, net worth ratio, fixed charge coverage ratio, maximum funded debt to earnings before interest depreciation and amortization ratio and a maximum capital expenditure limitation. Negative covenants include restrictions on incurring certain liens; making certain payments, such as distributions and dividend payments; making certain investments; transferring or selling assets; making certain acquisitions; and incurring additional indebtedness. The agreements generally provide that the payment of obligations may be accelerated upon the occurrence of customary events of default, including, but not limited to, non-payment, change of control or insolvency.

As of December 31, 2013, the Company was in compliance with all restrictive financial covenants associated with its borrowings.

Maturities of the term borrowings are as follows for the years ending December 31:

2014	$	7,029
2015	6,699
2016	4,380
2017	4,218
2018	11,223
Thereafter	631
Total	34,180
Less: current portion	(7,029		)
	$	27,151

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Operating Leases - (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013
Future minimum lease payments under operating leases
2014	$ 11,948
2015	9,401
2016	8,856
2017	8,339
2018	8,001
Thereafter	30,243
Total minimum payments	$ 76,788