10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

Form 10-K

(Mark One)

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

For the Fiscal Year Ended December 31, 2012

or

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

Commission file number 1-12691

ION Geophysical Corporation

(Exact Name of Registrant as Specified in Its Charter)

Delaware	22-2286646
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

2105 CityWest Blvd

Suite 400

Houston, Texas 77042-2839

(Address of Principal Executive Offices, Including Zip Code)

(281) 933-3339

(Registrant’s Telephone Number, Including Area Code)

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

Title of Each Class	Name of Each Exchange on Which Registered
Common Stock, $0.01 par value	New York Stock Exchange

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

None

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

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

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   þ     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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).     Yes   þ     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.     þ

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. (Check one):

Large accelerated filer   þ Accelerated filer   ¨ Non-accelerated filer   ¨ 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   þ

As of June 29, 2012 (the last business day of the registrant’s second quarter of fiscal 2012), the aggregate market value of the registrant’s common stock held by non-affiliates of the registrant was $1.0 billion based on the closing sale price on such date as reported on the New York Stock Exchange.

As of February 12, 2013, the number of shares of common stock, $0.01 par value, outstanding was 156,390,699 shares.

DOCUMENTS INCORPORATED BY REFERENCE

Document	Parts Into Which Incorporated
Portions of the registrant’s definitive Proxy Statement for its Annual Meeting of Stockholders scheduled to be held on May 22, 2013, to be filed pursuant to Regulation 14A	Part III

TABLE OF CONTENTS

		Page
	PART I
Item 1.	Business	4
Item 1A.	Risk Factors	16
Item 1B.	Unresolved Staff Comments	29
Item 2.	Properties	30
Item 3.	Legal Proceedings	30
Item 4.	Mine Safety Disclosures	32
	PART II
Item 5.	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	33
Item 6.	Selected Financial Data	33
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	34
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	49
Item 8.	Financial Statements and Supplementary Data	49
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	49
Item 9A.	Controls and Procedures	49
Item 9B.	Other Information	52
	PART III
Item 10.	Directors, Executive Officers and Corporate Governance	52
Item 11.	Executive Compensation	52
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	52
Item 13.	Certain Relationships and Related Transactions, and Director Independence	52
Item 14.	Principal Accountant Fees and Services	52
	PART IV
Item 15.	Exhibits and Financial Statement Schedules	52
Signatures		57
Index to Consolidated Financial Statements		F-1

3

PART I

Preliminary Note:    This Annual Report on Form 10-K contains “forward-looking statements” as that term is defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements should be read in conjunction with the cautionary statements and other important factors included in this Form 10-K. See Item 1A. “Risk Factors”for a description of important factors which could cause actual results to differ materially from those contained in the forward-looking statements.

In this Form 10-K, “ION Geophysical,” “ION,” “the company,” “we,” “our,” “ours” and “us” refer to ION Geophysical Corporation and its consolidated subsidiaries, except where the context otherwise requires or as otherwise indicated. Certain trademarks, service marks and registered marks of ION referred to in this Form 10-K are defined in Item 1. “Business — Intellectual Property.”

Item 1.    Business

We are a technology-focused seismic solutions company that provides planning and seismic processing services, software and advanced acquisition equipment to the global energy industry. Our services, technologies, and products are used by oil and gas exploration and production (“E&P”) companies and seismic acquisition contractors to generate high-resolution images of the Earth’s subsurface during exploration, exploitation, and production operations. We acquire and process seismic data from seismic surveys in regional data programs, which then become part of our seismic data library. Our services and products are intended to measure and interpret seismic data about rock and fluid properties within the Earth’s subsurface to enable oil and gas companies to make improved drilling and production decisions. The seismic surveys for our data library business are pre-funded, or underwritten, in part by our customers, and we contract with third party seismic data acquisition companies to shoot and acquire the seismic data, all of which is intended to minimize our risk exposure. We serve customers in all major energy producing regions of the world from strategically located offices in 20 cities on five continents.

In March 2010, we formed a joint venture with BGP, Inc., China National Petroleum Corporation (“BGP”), a subsidiary of China National Petroleum Corporation (“CNPC”), and contributed most of our land seismic equipment businesses to INOVA Geophysical Equipment Limited (“INOVA Geophysical”), the joint venture entity. BGP is generally regarded as the world’s largest land geophysical service contractor. BGP owns a 51% interest in INOVA Geophysical, and we own a 49% interest.

Our services and products include the following:

• Seismic data processing and reservoir imaging services,

• Seismic data libraries,

• Planning services for survey design and optimization,

• Navigation, command & control, and data management software products,

• Marine seismic data acquisition equipment, and

• Land seismic data acquisition equipment (principally through our 49% ownership in INOVA Geophysical).

Seismic imaging plays a fundamental role in hydrocarbon exploration and reservoir development by delineating structures, rock types, and fluid locations in the subsurface. Geoscientists interpret seismic data to identify new sources of hydrocarbons and pinpoint drilling locations for wells, which can be costly and involve high risk. As oil and gas reservoirs have become harder to find and more expensive to develop and exploit in recent years, the demand for advanced seismic imaging solutions has grown. In addition, seismic technologies are now being applied more broadly over the entire life cycle of a hydrocarbon reservoir to optimize production. For example, time-lapse seismic images (referred to as “4D” or “four-dimensional” surveys), in which the fourth dimension is time, can be made of producing reservoirs to track the movement of injected or produced fluids and/or to identify locations containing by-passed hydrocarbons.

ION has been involved in the seismic technology industry for over 40 years, starting in the 1960s when we designed and manufactured seismic equipment under our previous company name, Input/Output, Inc. In recent years, we have transformed our business from being solely a manufacturer and seller of seismic equipment to being a provider of a full range of seismic imaging services, technologies, and products.

We operate our company through three business segments: Solutions, Systems, and Software; and through our INOVA Geophysical joint venture.

• Solutions — advanced seismic data processing services for marine and land environments, reservoir solutions, onboard processing and quality control, seismic data libraries, and services by our GeoVentures^™ services group.

• Systems — towed marine streamer and re-deployable ocean bottom cable seismic data acquisition systems and shipboard recorders, streamer positioning and control systems, energy sources and analog geophone sensors.

4

• Software — software systems and related services for navigation and data management involving towed marine streamer and seabed operations.

• INOVA Geophysical — through our interest in INOVA Geophysical, cable-based, cableless and radio-controlled seismic data acquisition systems, digital sensors, vibroseis vehicles (i.e. vibrator trucks) and source controllers for detonator and energy sources business lines.

Our executive headquarters are located at 2105 CityWest Boulevard, Suite 400, Houston, Texas 77042-2839. Our international sales headquarters are located at LOB 16, office 504, Jebel Ali Free Zone, P.O. Box 18627, Dubai, United Arab Emirates. Our telephone number is (281) 933-3339. Our home page on the internet is www.iongeo.com. We make our website content available for information purposes only. Our website should not be relied upon for investment purposes, and it is not incorporated by reference into this Form 10-K.

In portions of this Form 10-K, we incorporate by reference information from parts of other documents filed with the Securities and Exchange Commission (“SEC”). The SEC allows us to disclose important information by referring to it in this manner, and you should review this information. We make our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, annual reports to stockholders, and proxy statements for our stockholders’ meetings, as well as any amendments to those reports, available free of charge through our website as soon as reasonably practicable after we electronically file those materials with, or furnish them to, the SEC.

You can learn more about us by reviewing our SEC filings on our website. Our SEC reports can be accessed through the Investor Relations section on our website. The SEC also maintains a website at www.sec.gov that contains reports, proxy statements, and other information regarding SEC registrants, including our company.

Seismic Industry Overview

1930’s – 1970’s. Since the 1930s, oil and gas companies have sought to reduce exploration risk by using seismic data to create an image of the Earth’s subsurface. Seismic data is recorded when listening devices placed on the Earth’s surface or seabed floor, or carried within the streamer cable of a towed streamer vessel, measure how long it takes for sound vibrations to echo off rock layers underground. For seismic acquisition onshore, the acoustic energy producing the sound vibrations is generated by the detonation of small explosive charges or by large vibroseis (vibrator) vehicles. In marine acquisition, the energy is provided by a series of air guns that deliver highly compressed air into the water column.

The acoustic energy propagates through the subsurface as a spherical wave front, or seismic wave. Interfaces between different types of rocks will both reflect and transmit this wave front. Onshore, the reflected signals return to the surface where they are measured by sensitive receivers that may be either analog coil-spring geophones or digital accelerometers based on MEMS (micro-electro-mechanical systems) technology. Offshore, the reflected signals are recorded by either hydrophones towed in an array behind a streamer acquisition vessel or by multicomponent geophones or MEMS sensors that are placed directly on the seabed. Once the recorded seismic energy is processed using advanced algorithms and workflows, images of the subsurface can be created to depict the structure, lithology (rock type), fracture patterns, and fluid content of subsurface horizons, highlighting the most promising places to drill for oil and natural gas. This processing also aids in engineering decisions, such as drilling and completion methods, as well as decisions affecting overall reservoir production.

Typically, an E&P company engages the services of a geophysical acquisition company to prepare site locations, coordinate logistics, and acquire seismic data in a selected area. The E&P company generally relies upon third parties, such as ION, to provide the contractor with equipment, navigation and data management software, and field support services necessary for data acquisition. After the data is collected, the same geophysical contractor, a third-party data processing company, the Company’s data processing services or the E&P company itself will process the data using proprietary algorithms and workflows to create a series of seismic images. Geoscientists then interpret the data by reviewing the images and integrating the geophysical data with other geological and production information such as well logs or core information.

During the 1960s, digital seismic data acquisition systems (which converted the analog output from the geophones into digital data for recording) and computers for seismic data processing were introduced. Using the new systems and computers, the signals could be recorded on magnetic tape and sent to data processors where they could be adjusted and corrected for known distortions. The final processed data was displayed in a form known as “stacked” data. Computer filing, storage, database management, and algorithms used to process the raw data quickly grew more sophisticated, dramatically increasing the amount of subsurface seismic information.

1980’s. Until the early 1980s, the primary commercial seismic imaging technology was two-dimensional (“2-D”) technology. 2-D seismic data is recorded using straight lines of receivers crossing the surface of the Earth. Once processed, 2-D seismic data allows geoscientists to see only a thin vertical slice of the Earth. A geoscientist using 2-D seismic technology must speculate on the characteristics of the Earth between the slices and attempt to visualize the true three-dimensional (“3-D”) structure of the subsurface.

5

The commercial development of 3-D imaging technology in the early 1980s was an important technological milestone for the seismic industry. Previously, the high cost of 3-D seismic data acquisition techniques and the lack of computing power necessary to process, display, and interpret 3-D data on a commercial basis had slowed its widespread adoption. Today’s 3-D seismic techniques record the reflected energy across a series of closely-spaced seismic lines that collectively provide a more holistic, spatially-sampled depiction of geological horizons and, in some cases, rock and fluid properties, within the Earth.

3-D seismic data and the associated computer-based interpretation platforms are designed to allow geoscientists to generate more accurate subsurface maps than could be constructed on the basis of the more widely spaced 2-D seismic lines. In particular, 3-D seismic data provided more detailed information about and higher-quality images of subsurface structures, including the geometry of bedding layers, salt structures, and fault planes. The improved 3-D seismic images allowed the oil and gas industry to discover new reservoirs, reduce finding and development costs, and lower overall hydrocarbon exploration risk. Driven by faster computers and more sophisticated mathematical equations to process the data, the technology advanced quickly.

1990’s – present. As commodity prices decreased in the late 1990’s and the pace of innovation in 3-D seismic imaging technology slowed, E&P companies slowed the commissioning of new seismic surveys. Also, business practices employed by geophysical contractors impacted demand for seismic data. In an effort to sustain higher utilization of existing capital assets, geophysical contractors increasingly began to collect speculative seismic data for their own account in the hopes of selling it later to E&P companies. These generic, speculative, multi-client surveys were not tailored to meet the unique imaging objectives of individual clients and caused an oversupply of seismic data in many regions. Additionally, since contractors incurred most of the costs of this speculative seismic data at the time of acquisition, contractors lowered prices to recover as much of their fixed investment as possible, which drove operating margins down.

These conditions continued to prevail until 2004-2005, when commodity prices began increasing and E&P companies increased their capital spending programs, which drove higher demand for our services and products. The financial crisis that occurred in 2008 and the resulting economic downturn drove hydrocarbon prices down sharply; this had the effect of sharply reducing exploration activities in North America and in many parts of the world. Since then, however, West Texas Intermediate (“WTI”) crude oil prices have recovered, and were within a range of approximately $80 to $100 per barrel at the end of 2012. Brent crude oil prices have also recovered and finished 2012 near $110 per barrel; however, North American natural gas prices have remained depressed from their 2008 levels.

ION Geophysical’s Business Strategy

Factors Affecting Long-Term Demand

We are now seeing increasing levels of capital spending related to E&P activity, and we believe that current conditions exist that favor increased seismic spending for the years ahead. These conditions include the following:

• Global demand for crude oil remains high;

• The decline in crude oil reserves in major producing fields around the world has continued, and the pace of reinvestment into exploration and development will need to increase to offset future production declines;

• Remaining oil reserves are proving harder to find, and the potential for large undiscovered or underdeveloped reservoirs in offshore locations should continue to drive demand by E&P companies and seismic contractors for improvements in marine equipment technology and offshore seismic data libraries;

• U.S. oil production surged in 2012 to 6.4 million barrels per day, a 15-year high and up from 5.6 million barrels a day in 2011, due mainly to the use of new technologies designed to locate and unlock deposits of oil and gas in formations previously thought to be unreachable;

• E&P expenditures are forecast to increase each year through 2015;

• Large E&P companies are focusing on hydrocarbon reservoirs that are located in complex shale geological formations and harder-to-access regions of the world, which should increase demand for newer and more efficient imaging processing and equipment technology solutions; and

• While North American natural gas prices remain at depressed levels, Henry Hub prices did increase during the second half of 2012, and investment in shale liquids markets should remain relatively strong in North America and in other parts of the world.

The complex hydrocarbon reservoirs that have been developed in recent years generally have more subtle characteristics than the reservoirs that were discovered in prior decades. These unconventional reservoir types include shale plays, tight gas formations and oil sands. As a result, the process of finding and developing these hydrocarbon deposits is proving to be more challenging, which in turn results in escalating costs and increasing demands for newer and more efficient imaging

6

technologies. Also, producers are increasingly using seismic data to enhance production from known fields by repeating time-lapse seismic surveys over a defined area. We believe that this trend should benefit seismic companies such as ION by extending the utility of subsurface imaging beyond exploration and into production monitoring, which can continue for decades.

We believe that E&P companies will, in the future, increasingly use seismic technology providers who will collaborate with them to tailor seismic surveys that address specific geophysical problems and to apply advanced imaging technologies to take into account the geologic peculiarities of a specific area. In the future, we expect that E&P companies will rely less on undifferentiated, mass seismic studies created using analog sensors and traditional processing technologies that do not adequately identify geologic complexities.

Becoming a Broad-Based Seismic Provider

Two acquisitions in 2004 — Concept Systems Holdings Limited (“Concept Systems”) and GX Technology Corporation (“GXT”) — were important in our evolution to becoming a broad-based seismic solutions company from primarily a seismic equipment provider. Concept Systems provided us our integrated planning, navigation, command & control, and data management software and solutions business for towed marine streamers and seabed operations. GXT provided us our advanced seismic data processing services and marine seismic data library business.

Through these and other acquisitions, along with our research and development efforts, we have broadened our offering to span the entire seismic workflow, which includes survey planning, acquisition, processing and interpretation. Our offerings include seismic data acquisition hardware, command and control software, value-added services associated with seismic survey design, seismic data processing and interpretation, and seismic data libraries. We currently do not own a fleet of boats or provide our own seismic crews to acquire marine or land surveys. Our strategy since 2004 has been to be an “asset light” seismic solutions company, focusing our capital on our people and technology.

In March 2010, we formed INOVA Geophysical, our joint venture with BGP. The scope of the joint venture’s business is to design, develop, engineer and manufacture land-based equipment used in seismic data acquisition for the petroleum industry, and to conduct related research and development, distribution, sales and marketing and field support operations.

A key part of the strategy behind the joint venture was to leverage our research and development experience and expertise with the operational experience and global expertise of BGP. The R&D centers for the joint venture have remained primarily in the U.S. and Canada, although INOVA Geophysical intends to evaluate lower-cost manufacturing opportunities in China and pursue these opportunities when appropriate. In addition, we and BGP intend that BGP’s geophysical crews will field test the joint venture’s new technology and related equipment for operational feedback and quality improvements. Finally, we expect, over time, that BGP will eventually purchase more of its land equipment from the joint venture and will purchase more ION services and products from our other business segments.

A key element of our business strategy has been to understand the challenges faced by E&P companies in survey planning, acquisition, processing and interpretation, and to strive to develop and offer technology and services that enable us to work with the E&P companies to solve their challenges. We have found that a collaborative relationship with E&P companies, with a goal of better understanding their imaging challenges and then working with them and our contractor customers to assure that the right technologies are properly applied, is the most effective method for meeting our customers’ needs. This strategy of being a full solutions provider to solve the most difficult challenges for our customers is an important element of our long term business strategy, and we are implementing this approach globally through local personnel in our regional organizations who understand the unique challenges in their areas.

Current Strategy – While we anticipate continuing to grow and refine our seismic data equipment businesses in marine and land (through INOVA Geophysical), our emphasis on growth will continue to be in our Solutions segment’s data processing and GeoVentures multi-client businesses. This focus is consistent with our current asset-light strategy, whereby the majority of our investments will be devoted toward research and development and computing infrastructure for our data processing business, and in support of our GeoVentures multi-client projects. This focus better positions our company as a full-service technology company having increasing revenues coming from E&P company customers using our GXT data processing and GeoVentures services.

GeoVentures offers integrated design and management of proprietary and multi-client 2D and 3D surveys, from survey design and planning, to seismic data acquisition project management, advanced processing services and final image rendering. With GeoVentures, we outsource the physical field acquisition work to experienced seismic contractors, utilizing existing industry acquisition capacity while enabling us to focus on the most value-adding elements of the seismic process.

In this regard, we are currently concentrating on four key market sectors in our Solutions businesses:

• Challenging environments, such as the Arctic frontier: we have performed many successful surveys in the Arctic, and have returned to the North American Arctic region in 2012 for our seventh season of acquisition.

7

• Complex and hard-to-image geologies, such as deepwater subsurface salt formations in the Gulf of Mexico and offshore West Africa and Brazil: we believe that GXT’s technologies are well-suited to meet the depth imaging challenges presented by these formations.

• Unconventional reservoirs, such as those found in shale, tight gas and oil sand formations: principally focusing on oil plays and the more economically viable gas portions of hydrocarbon plays; our 3D ResSCAN™ reservoir characterization programs feature unique measurement techniques.

• Basin exploration; our BasinSPAN™ programs are offshore basin-wide seismic data programs acquired and imaged using advanced geological and geophysical technology; these custom-designed programs provide E&P companies with valuable insights into the regional geologies of offshore frontier areas; commencing in 2002, this business has grown into a substantial data library that covers many of the frontier basins in the world, including offshore East and West Africa, India and Brazil, as well as in the Arctic and the deepwater Gulf of Mexico.

E&P companies continue to be interested in technology that will increase production and improve their understanding of targeted reservoirs, in both the exploration and production phases. We believe that our technologies, such as DigiFIN^®, DigiSTREAMER™, Orca^®, our WiBand^TM data processing technology, and INOVA Geophysical’s lower-cost cableless Hawk™ land system, improved FireFly^® system (FireFly DR31) and a new cabled system (G3i™), will continue to attract interest because they are designed to deliver improvements in both image quality and productivity. For more information regarding our services and products, see “— Services and Products” below.

In summary, our business strategy is predicated on successfully executing six key imperatives:

• Expanding our Solutions services business in new regions with new customers and new land and marine service offerings, including proprietary services for E&P producers;

• Globalizing our Solutions data processing business by opening advanced imaging centers in strategic locations, and expanding our presence in the land seismic processing segment, with emphasis on serving national oil companies;

• Developing and introducing our next generation of marine towed streamer products, with a goal of developing markets beyond the new vessel market;

• Developing a next generation of seabed seismic data imaging technology using our VectorSeis^® Ocean (“VSO”) seismic data acquisition system platform and derivative products to obtain technical and market leadership in what we continue to believe is a very important and expanding market;

• Managing our cost structure to reflect current market and economic conditions while keeping key strategic technology programs progressing; and

• Through our investment in INOVA Geophysical, (i) increasing market share and profitability in land data acquisition systems, as well as other land equipment technologies; and (ii) leveraging INOVA Geophysical’s land equipment business to design and deliver lower cost, more reliable land imaging systems to our worldwide customer base of land acquisition contractors, while at the same time, tapping into a broader set of global geophysical opportunities associated with the exploration, asset development, and production operations of BGP’s parent, CNPC.

Services and Products

Solutions Services

Our Solutions segment includes the following:

GeoVentures — Our GeoVentures services are designed to manage the entire seismic process, from survey planning and design to data acquisition and management, through pre-processing and final subsurface imaging. The GeoVentures services group focuses on the technologically intensive components of the image development process, such as survey planning and design and data processing and interpretation, and outsources the logistics components (such as field acquisition) to experienced seismic and other geological contractors.

We offer our GeoVentures services to customers on both a proprietary and multi-client basis. On both bases, the customers pre-fund a majority of the data acquisition costs. With our proprietary service, the customer also pays for the imaging and processing, but has exclusive ownership of the data after it has been processed. For multi-client surveys, we assume some of the processing costs but retain ownership of the marketing rights to the data and images and receive on-going license revenue from subsequent data license sales.

Since 2002, GeoVentures has acquired and processed a growing seismic data library consisting of non-exclusive marine and ocean bottom data from around the world. The majority of the data libraries licensed by GeoVentures consist of ultra-deep 2-D seismic survey data that E&P companies use to better evaluate the evolution of petroleum systems at the basin level, including insights into the character of source rocks and sediments, migration pathways, and reservoir trapping

8

mechanisms. In many cases, the availability of geoscience data extends beyond seismic information to include magnetic, gravity, well log, and electromagnetic information, which help to provide a more comprehensive picture of the subsurface. Particular attention is made to ensure the data obtained can integrate with legacy 2D and 3D datasets. Known as “SPANS,” these geophysical data libraries currently exist for major offshore basins worldwide, including:

• the Gulf of Mexico,

• the Caribbean,

• off the north, east and west coasts of South America,

• off the east and west coasts of Africa,

• off the east and west coasts of India,

• the Arctic Ocean,

• offshore Australia, and

• offshore certain southeast Asian countries.

In 2012, we expanded our BasinSPAN library to add programs or expand programs, most significantly offshore Africa, Latin America, including Brazil and Uruguay, and the Arctic. In addition to our 2D multi-client programs, we initiated our first 3D marine proprietary program.

We have also begun to develop onshore reservoir imaging and characterization programs to provide E&P companies with the ability to better understand conventional and unconventional reservoirs. Known as “ResSCAN” programs, these 3D seismic data programs are designed, acquired and depth-imaged using advanced geophysical technology and proprietary processing techniques, resulting in high-definition images of the subsurface. By the end of 2012, we had five ResSCAN programs either complete or in progress across the Marcellus and Niobrara shale formation areas of the U.S. Other seismic programs are planned or under development for other regions of the world.

Seismic Data Processing Services — We believe that our GXT Imaging Solutions group is a leader in advanced land and marine seismic data processing services. E&P companies apply our solutions to produce high-quality subsurface images in marine, ocean bottom and land environments.

GXT offers processing and imaging services designed to help our E&P customers reduce exploration and production risk, appraise and develop reservoirs, and increase production. GXT develops a series of subsurface images by applying its processing technology to data owned or licensed by its customers and also provides its customers with support services (even onboard seismic vessels), such as data pre-conditioning for imaging and outsourced management, including quality control, of seismic data acquisition and image processing services.

GXT utilizes a globally distributed network of Linux-cluster processing centers throughout the world (including centers in North America, South America, Africa, Asia and Europe), scaled to local needs, which are combined with our major hub in Houston, to process seismic data by applying advanced proprietary algorithms and workflows that incorporate processing techniques such as illumination analysis, data conditioning and velocity modeling, and time and depth migration. These techniques help produce more detailed, higher-quality imaging of subsurface formations.

GXT pioneered pre-stack depth migration (“PreSDM”) technology, a processing technique involving the application of advanced, computer-intensive processing algorithms, which convert time-based seismic information to a geological depth basis. While pre-stack depth migration is not required for every imaging situation, it generally provides the most accurate subsurface images in areas of complex geology. Our Reverse Time Migration (“RTM”) technology was developed to improve imaging in areas where complex structural conditions or steeply dipping subsurface horizons have provided imaging challenges for oil and gas companies. Both PreSDM and RTM techniques have proved effective in their application to hard-to-image subsalt reservoirs in the Gulf of Mexico. In 2012, we introduced WiBand, a broadband processing technology designed to remove most of the ghost effects from conventional streamer data. This methodology, a combination of algorithms and workflows, uniquely tackles both the source and receiver ghosts to recover the full spectrum in data acquired using conventional towed streamers, delivering superior broadband images.

GXT has a broad portfolio of offerings throughout the entire seismic workflow. Our technologies are designed to allow us to clearly define a solution to ensure that our customers’ goals are met, such as removing false reflections and identifying fractures in reservoirs.

Our AXIS Geophysics group (“AXIS”), based in Denver, Colorado, focuses on advanced seismic data processing for stratigraphically complex onshore environments. Many hydrocarbon plays, including shale plays, are impacted by subsurface anisotropy which causes seismic velocities to vary according to source-receiver direction. AXIS has developed a proprietary data processing technique called AZIM™ that is designed to better account for the anisotropic effects of the Earth

9

(i.e., the fact that the speed of the seismic waves does not just depend on the subsurface location but also on the direction that the seismic waves travel, or propagate), which tend to distort seismic images. AZIM is designed to correct for these anisotropic effects by producing higher resolution images in areas where the velocity of seismic waves varies with compass direction (or azimuth). The AZIM technique is used to analyze fracture patterns within reservoirs and is particularly suitable for analyzing the geologies in shale formations.

We believe that the application of ION’s advanced processing technologies and imaging techniques can better identify complex hydrocarbon-bearing structures and deeper exploration prospects. We also believe that the combination of GXT’s capabilities in advanced velocity model building and depth imaging, along with AXIS’ capability in anisotropic imaging, provides an advanced toolkit for maximizing full-wave data measurements.

At December 31, 2012, our Solutions segment backlog, which consists of commitments for (i) data processing work and (ii) both multi-client new venture and proprietary projects by our GeoVentures group that have been underwritten, was $151.3 million compared with $134.2 million at December 31, 2011, an increase of 13%. We anticipate that the majority of this backlog will be recognized as revenue over the first half of 2013.

Systems Products

Our Systems segment products include the following:

Marine Acquisition Systems — Our marine acquisition system consists of towed marine streamers and shipboard electronics that collect seismic data in water depths greater than 30 meters. Marine streamers, which contain hydrophones, electronic modules and cabling, may measure up to 12,000 meters in length and are towed (up to 20 at a time) behind a seismic acquisition vessel. The hydrophones detect acoustical energy transmitted through water from the Earth’s subsurface structures. Our DigiSTREAMER system, our next-generation towed streamer system, uses solid streamer and integrated continuous acquisition technology for towed streamer operations.

The market for seabed seismic imaging is growing. E&P companies are showing increased interest in seabed seismic activities, consistent with their demand for higher-quality seismic imaging for complex geological formations and more detailed reservoir characteristics. During 2004, we introduced our VSO system, an advanced system for seismic data acquisition using re-deployable ocean bottom cable. Since then, we have sold a total of five VSO ocean-bottom systems, all to Reservoir Exploration Technology, ASA (“RXT”), a Norwegian seismic contractor. During 2010, we announced the launch of VSO II, which offered significant enhancements over the initial VSO system. During 2012, we had sales of VSO II replacement equipment to RXT and its affiliated joint venture. We continue to develop our seabed technology and expect to commercialize our next-generation ocean-bottom system, Calypso™, in late 2013.

Marine Positioning Systems — Our DigiCOURSE^® marine streamer positioning system includes streamer cable depth control devices, lateral control devices, compasses, acoustic positioning systems, and other auxiliary sensors. This equipment is designed to control the vertical and horizontal positioning of the streamer cables and provides acoustic, compass, and depth measurements to allow processors to tie navigation and location data to geophysical data to determine the location of potential hydrocarbon reserves. DigiFIN is an advanced lateral streamer control system that we commercialized in 2008. Since 2008, we have sold and delivered 37 DigiFIN systems, and have completed multiple DigiFIN vessel expansions. DigiFIN is designed to maintain tighter, more uniform marine streamer separation along the entire length of the streamer cable, which allows for better sampling of seismic data and improved subsurface images. We believe that DigiFIN also enables faster line changes and minimizes the requirements for in-fill seismic work.

Source and Source Control Systems — We manufacture and sell air guns, which are the primary seismic energy source used in marine environments to initiate the acoustic energy transmitted through the Earth’s subsurface. An air gun fires a high compression burst of air underwater to create an energy wave for seismic measurement. We offer a digital source control system (DigiSHOT^®), which allows for reliable control of air gun arrays for 4-D exploration activities.

Geophones — Geophones are land analog sensor devices that measure acoustic energy reflected from rock layers in the Earth’s subsurface using a mechanical, coil-spring element. We market a full suite of geophones and geophone test equipment that operate in most environments, including land, transition zone, and downhole. Our analog geophones are used in other industries as well.

Software Products and Services

Through this segment, we supply command-and-control software systems and services for towed marine streamer and seabed operations. Software developed by our subsidiary, Concept Systems, is installed on towed streamer marine vessels worldwide and is a component of many re-deployable and permanent seabed monitoring systems. Products and services for our Software segment include the following:

Marine Imaging — Our Concept Systems command and control software for towed streamer acquisition, Orca, integrates acquisition, positioning, source and QC systems data management and control into a seamless platform. Orca has

10

made significant inroads into the towed streamer market and, together with legacy Spectra^® installations, Concept Systems continued to maintain its leadership position in the towed streamer command and control software market in 2012, despite a period of low expansion in the vessel market. New modules for the efficient optimization of the acquisition for surveys were included in the latest release, with most clients taking the option as standard. For more complex surveys, Orca has even been installed by clients on a job-by-job basis, as required. Spectra is Concept Systems' predecessor to Orca. Sprint^® processing software continues to be utilized in the market with a new platform IRIS™, to be released during 2013. Five of the seven known new-builds for 2013 to 2015 have already committed to Orca systems, and Concept continues to work in collaboration with the major seismic players to develop new techniques, enabling the market to expand its technological ambitions.

Seabed Imaging — Concept Systems' now offers the Gator^® II product, which improves upon its former Gator^® offering. This is an integrated navigation and data management software system for multi-vessel ocean bottom cable and transition zone (such as marshlands) operations, with a new software platform to enhance and simplify the user experience. The Gator system is designed to provide real-time, multi-vessel positioning and data management solutions for ocean-bottom, shallow-water, and transition zone crews. Gator II command and control software is designed to meet the unique challenges of distributed, multi-vessel seabed, transition zone, and electromagnetic data acquisition. The system is extremely flexible and scalable to configure and control single vessel operations to highly complex surveys spanning multiple vessels and acquisition systems. New radio solutions and rugged waterproof timing interfaces have been introduced to further aid the operation of these complex operations.

Survey Design, Planning and Optimization — Concept Systems offers consulting services for planning, designing and supervising complex surveys, including 4D and WATS (Wide Azimuth Towed Streamer) survey operations. Concept Systems’ acquisition expertise and in-field software platforms and development capability are designed to allow their clients, including oil companies and seismic acquisition contractors, to optimize these complex surveys, improving image quality and reducing costs. Our Orca and Gator systems are designed to integrate with our post-survey tools for processing, analysis, and data quality control, including the use of our Reflex^® software for seismic coverage and attribute analysis, and a technology planning tool called Optimiser^™.

INOVA Geophysical Products

Products of INOVA Geophysical include the following:

Land Acquisition Systems — INOVA now provides two offerings for cableless land acquisition, FireFly and Hawk. By removing the constraints of cables, geophysicists can custom-design surveys for multiple subsurface targets and increase receiver station density to more fully sample the subsurface. Cableless systems enable contractors to efficiently operate in challenging, culturally-intensive environments. Other benefits include a decrease in system weight and, we believe, superior operational efficiencies, reduction in operational troubleshooting time and better defined sampled seismic data.

FireFly is INOVA’s radio-based cableless system. It allows for a central location to communicate with the field units via radio and receive information back from the field units. This communication link allows for management of the equipment on the ground by relaying commands that respond to operational variables. It also provides valuable quality control information from the field as to the status of the equipment and geophysical attributes. In 2011, INOVA Geophysical introduced its improved FireFly DR31 system, providing increased ruggedness and protection through an aluminum enclosure, reduced power consumption and support for 3-channel analog or VectorSeis digital sensors within the same field electronics.

In 2011, INOVA Geophysical released its Hawk SN11 autonomous node cableless system. Hawk is a lower-priced version of FireFly that provides a wireless platform without radio infrastructure. Given its simpler infrastructure, it consumes less power in turn increasing battery life. The straight forward infrastructure is ideal for swift operations or as a complement to cable-based or FireFly systems. Hawk allows for the use of analog geophones as well as VectorSeis digital sensors.

VectorSeis is INOVA’s digital multicomponent sensor and it can be used with all of its recording systems. In 2011, the VectorSeis ML21 was introduced with reinforced mechanical housing improved seal structure and lower power consumption. In 2012, INOVA Geophysical released the VectorSeis MT21 that has the versatility to be used in marsh applications. Since 1999, VectorSeis full-wave technology has been used to acquire seismic data all over the world.

INOVA Geophysical cable-based land acquisition systems, Scorpion^®, ARIES^® and G3i, consist of a central recording unit and multiple remote ground equipment modules that are connected by cable. The central recording unit is in a transportable enclosure that serves as the control center of each system and is typically mounted within a vehicle. The central recording unit receives digitized data, stores the data on storage media for subsequent processing and displays the data on optional monitoring devices. It also provides calibration, status and test functionality. The remote ground equipment consists of multiple remote modules and line taps positioned over the survey area. Seismic data is collected by analog geophones or VectorSeis digital sensors.

In 2012, INOVA Geophysical released the G3i cable-based recording system. G3i supports over 100,000 channels and can be used to capture 2D, high density 3D and time-lapse 4D data. The electronics of G3i's Remote Acquisition Module

11

(“RAM”), Fiber Tap Unit (“FTU”) and Power Supply Unit (“PSU”) are enclosed in a light weight, aluminum housing for extended durability and protection in harsh operating environments. G3i's power-down-the line technology distributes battery power to multiple RAM stations using the PSU and FTU, reducing the need for additional batteries on the spread and simplifying power management and logistics. G3i offers high productivity vibroseis capabilities to allow operators to obtain higher productivity levels than traditional vibroseis methods by recording more source points per hour and completing surveys faster. The G3i system is designed to help E&P companies and seismic contractors overcome their operational challenges while conducting the simplest or the most demanding acquisition projects.

INOVA Geophysical ARIES product line was originally acquired in connection with our acquisition of ARAM Systems Ltd. in September 2008. The product line consists of analog cable-based land acquisition systems and related peripherals and equipment. ARIES land system products include remote acquisition modules (“RAMs”), which acquire seismic data from the sensors and transmit the data digitally to the central processing equipment. Line tap units interconnect baseline cables from the recording equipment to multiple receiver lines and function to retransmit data from the RAMs to central recording equipment. ARIES products also include system batteries, central recording equipment, and baseline cables that connect the central recording equipment with the taps and receiver line cables.

The latest version of ARIES — the ARIES II^® land recording system — features a 24-bit system architecture that is designed to dramatically improve channel capacity, ensure efficient equipment deployment, and maximize system performance. It is also enabled to work with analog geophones and VectorSeis digital sensors and provides continuous recording functionality for microseismic and high productivity vibroseis operations. ARIES II supports high channel count, source-driven, high productivity vibroseis acquisition.

The Scorpion system is also capable of recording digital multicomponent seismic data, as well as analog data. Digital sensors can provide increased response linearity and bandwidth, which translate into higher resolution images of the subsurface. In addition, one digital sensor can replace a string of six or more analog geophones, providing users with equipment weight reduction and improved operating efficiencies.

Source Products — Vibrators are devices carried by large vehicles and, along with dynamite, are used as energy sources for land seismic acquisition. INOVA Geophysical markets and sells the AHV-IV™, a line of articulated tire-based vibrator vehicles, and a tracked vibrator, the XVib^®, for use in environmentally sensitive areas such as the Arctic tundra and desert environments. During 2011, INOVA launched the UNIVIB™, a smaller vibrator with up to 26,000 lb peak force that allows easier mobility in environmentally restricted or heavily urbanized areas. INOVA Geophysical also released its Connex™ Vib system that provides navigation and positioning of vibroseis vehicles with capabilities for integrated stakeless operations.

INOVA Geophysical is also a provider of energy source control and positioning technologies. The Vib Pro™ control system provides vibrator vehicles with digital technology for energy control and global positioning system technology for navigation and positioning. The Shot Pro™ dynamite firing system, released in 2007, is the equivalent technology for seismic operations using dynamite energy sources.

Product Research and Development

Our research and development efforts have continued to remain focused on improving the quality of the subsurface image and seismic data acquisition economics for our customers. Additionally, we have also focused on improving the type and quality of the information that can be extracted from the subsurface images. Our ability to compete effectively in the manufacture and sale of seismic equipment and data acquisition systems, as well as related processing services, depends principally upon continued technological innovation. Development cycles of most products, from initial conception through commercial introduction, may extend over several years.

During 2012, our product development efforts continued across selective business lines aimed at the development of strategic key technologies and products. A large part of our research and development efforts in 2012 were focused on development of our new Calypso re-deployable seabed acquisition system and our other marine technologies. In our data processing business, we are investing in continued improvements in productivity and in enhancing our applications to handle increasingly complex data acquisition environments and difficult-to-image geology. We have also invested in the development of a new processing based broadband marine seismic solution, WiBand, which we introduced at the 2012 European Association of Geoscientists & Engineers (EAGE) conference and exhibition. In addition, we have invested in research and development on the value of Full Wave data in extracting new and more accurate information of the subsurface with special emphasis on its application to shale plays and marine seabed acquisition.

Because many of these new services and products are under development, their commercial feasibility or degree of commercial acceptance is not yet established. No assurance can be given concerning the successful development of any new service or product, any enhancements to them, the specific timing of their release or their level of acceptance in the marketplace.

12

Markets and Customers

Based on historical revenues, we believe that we are a market leader in seismic data acquisition in the Arctic and in numerous product lines, including full-wave sensors based upon micro-electro magnetic systems (“MEMS”), navigation and data management software, marine positioning and streamer control systems, redeployable seabed recording systems and, through INOVA Geophysical, cableless land acquisition systems.

Our principal customers are E&P companies and seismic contractors. We market and offer services directly to E&P companies, primarily imaging-related processing services from our GXT subsidiary and multi-client seismic data libraries from our GeoVentures group, as well as consulting services from Concept Systems and GXT. Seismic contractors purchase our data acquisition systems and related equipment and software to collect data in accordance with their E&P company customers’ specifications or for their own seismic data libraries. For each of 2012, 2011 and 2010, no single customer accounted for 10% or more of our consolidated annual net revenues.

A significant part of our marketing effort is focused on areas outside of the United States. Foreign sales are subject to special risks inherent in doing business outside of the United States, including the risk of armed conflict, civil disturbances, currency fluctuations, embargo and governmental activities, customer credit risks, and risk of non-compliance with U.S. and foreign laws, including tariff regulations and import/export restrictions.

We sell our services and products through a direct sales force consisting of employees and international third-party sales representatives responsible for key geographic areas. During 2012, 2011 and 2010, sales to destinations outside of North America accounted for approximately 69%, 66% and 60% of our consolidated net revenues, respectively. Further, systems and equipment sold to domestic customers are frequently deployed internationally and, from time to time, certain foreign sales require export licenses.

Traditionally, our business has been seasonal, with strongest demand typically in the fourth quarter of our fiscal year.

For information concerning the geographic breakdown of our net revenues, see Note 2 of Notes to Consolidated Financial Statements.

Manufacturing Outsourcing and Suppliers

Since 2003, we have increased the use of contract manufacturers in our Systems segment as an alternative to manufacturing our own products. We have outsourced the manufacturing of our towed marine streamers, our re-deployable ocean bottom cables and various components of our VSO seabed system. We may experience supply interruptions, cost escalations, and competitive disadvantages if we do not monitor these relationships properly.

Competition

The GXT Imaging Solutions group within our Solutions segment competes with more than a dozen processing companies that are capable of providing pre-stack depth migration services to E&P companies. See “ — Services and Products —Solutions Services.” While the barriers to entry into this market are relatively low, the barriers to competing at the higher end of the market, the advanced pre-stack depth migration market where our efforts are focused, are significantly higher. At the higher end of this market, Compagnie General de Geophysique Veritas (“CGGVeritas”) and WesternGeco L.L.C. (a wholly-owned subsidiary of Schlumberger Limited, a large integrated oilfield services company) are our Solutions segment’s two primary competitors for advanced imaging services. Both of these companies are larger than ION in terms of revenues, number of processing locations, and sales, marketing and financial resources. In addition, both CGGVeritas and WesternGeco possess an advantage of being part of affiliated seismic contractor companies, providing them with access to customer relationships and seismic datasets that require processing. The GXT Imaging Solutions group also competes with companies that are capable of performing data processing services via internal resources. These companies, along with another competitor, TGS-Nopec, also develop and sell data libraries that compete with ION's BasinSPAN data library.

The market for seismic services and products is highly competitive and is characterized by continual changes in technology. Our principal competitor for land and marine seismic equipment is Societe d’Etudes Recherches et Construction Electroniques (“Sercel”), an affiliate of the French seismic contractor, CGGVeritas. Sercel possesses the advantage of being able to sell its products and services to an affiliated seismic contractor that operates both land crews and seismic acquisition vessels, providing it with a greater ability to test new technology in the field and to capture a captive internal market for product sales. Sercel has also demonstrated that it is willing to offer extended financing sales terms to customers in situations where we declined to do so due to credit risk. We also compete with other seismic equipment companies on a product-by-product basis. Our ability to compete effectively in the manufacture and sale of seismic instruments and data acquisition systems depends principally upon continued technological innovation, as well as pricing, system reliability, reputation for quality, and ability to deliver on schedule.

Certain seismic contractors have designed, engineered, and manufactured seismic acquisition technology in-house (or through a network of third-party vendors) in order to achieve differentiation versus their competition. For example,

13

WesternGeco relies heavily on its in-house technology development for designing, engineering, and manufacturing its “Q-Technology” platform, which includes seismic acquisition and processing systems. Although this technology competes directly with ION’s technology for marine streamer, seabed, and land acquisition, WesternGeco does not provide Q-Technology services to other seismic acquisition contractors. However, the risk exists that other seismic contractors may decide to conduct more of their own seismic technology development, which would put additional pressures on the demand for ION acquisition equipment products.

In addition, over the last several years, we have seen both new-build and consolidation activity within the marine towed streamer segment, which could impact our business results in the future. We expect the number of 2-D and 3-D marine streamer vessels, including those in operation, under construction, or announced additions to capacity, to increase by 24, to approximately 150 in 2016, keeping net projections steady compared to December 31, 2011. We understand that 23 out of these estimated 24 vessels will be outfitted to perform 3-D seismic survey work. In addition, there has been an increase in acquisition activity within the sector, with the major vessel operators — CGGVeritas, WesternGeco, and Petroleum Geo-Services ASA (“PGS”) — all moving to acquire new market entrants in the last several years. In 2012, CGGVeritas announced the acquisition of Fugro's geoscience division. This acquisition resulted in 75% of the high-end 3D seismic capacity being concentrated among the largest three companies — CGGVeritas, WesternGeco & PGS. Those three companies are, more and more, vertically integrated companies developing technology that uniquely differentiates them from the rest of the players. This consolidation in the sector reduces the number of potential customers and vessel outfitting opportunities for us.

Concept Systems provides advanced data integration software and services to seismic contractors acquiring data using either towed streamer vessels or ocean-bottom cable on the seabed. Vessels or ocean-bottom cable crews that do not use Concept Systems software either rely upon manual data integration, reconciliation, and quality control, or develop and maintain their own proprietary software packages. There is growing competition to Concept Systems’ core command and control business from Sercel and other smaller companies. Concept Systems has signed long term (between two and five years) technology partnership agreements with many of its key clients and will continue to seek to develop key new technologies with these clients. An important competitive factor for companies in the same business as Concept Systems is the ability to provide advanced complex command and control software with a high level of reliability combined with expert systems and project support to ensure operations run cost-effectively.

Intellectual Property

We rely on a combination of patents, copyrights, trademark, trade secrets, confidentiality procedures, and contractual provisions to protect our proprietary technologies. Although our portfolio of patents is considered important to our operations, and particular patents may be material to specific business lines, no one patent is considered essential to our consolidated business operations.

Our patents, copyrights, and trademarks offer us only limited protection. Our competitors may attempt to copy aspects of our products despite our efforts to protect our proprietary rights, or may design around the proprietary features of our products. Policing unauthorized use of our proprietary rights is difficult, and we are unable to determine the extent to which such use occurs. Our difficulties are compounded in certain foreign countries where the laws do not offer as much protection for proprietary rights as the laws of the United States. From time to time, third parties inquire and claim that we have infringed upon their intellectual property rights and we make similar inquiries and claims to third parties. No material liabilities have resulted from these third party claims to date. For more information on current litigation related to the Company’s intellectual property, see Item 3. “Legal Proceedings.”

The information contained in this Annual Report on Form 10-K contains references to trademarks, service marks and registered marks of ION and our subsidiaries, as indicated. Except where stated otherwise or unless the context otherwise requires, the terms “VectorSeis,” “FireFly,” “ARIES,” “ARIES II,” “DigiSHOT,” “DigiFIN,” “XVib,” “DigiCOURSE,” “Gator,” “Gator II” “Spectra,” “Orca,” “Sprint,” “Scorpion,” and “Reflex” refer to VECTORSEIS^®, FIREFLY^®, ARIES^®, ARIES II^®, DIGISHOT^®, DIGIFIN^®, XVIB^®, DIGICOURSE^®, GATOR^®, GATOR^® II, SPECTRA^®, ORCA^®, SPRINT^®, SCORPION^®, and REFLEX^® registered marks owned by ION or INOVA Geophysical, and the terms “AZIM,” “BasinSPAN,” “DigiSTREAMER,” “AHV-IV,” “Vib Pro,” “Shot Pro,” “GeoVentures,” “Optimiser,” “ResSCAN,” “Hawk,” “UNIVIB,” “G3i,” “Calypso,” “Connex” and “WiBand” refer to AZIM™, BasinSPAN™, DigiSTREAMER™, AHV-IV™, Vib Pro™, Shot Pro™, GeoVentures™, Optimiser™, ResSCAN™ , Hawk™, UNIVIB™, G3i™, Calypso™, Connex™ and WiBand™ trademarks and service marks owned by ION or INOVA Geophysical.

14

Regulatory Matters

Our operations are subject to various international conventions, laws and regulations in the countries in which we operate, including laws and regulations relating to the importation of and operation of seismic equipment, currency conversions and repatriation, oil and gas exploration and development, taxation of offshore earnings and earnings of expatriate personnel, environmental protection, the use of local employees and suppliers by foreign contractors and duties on the importation and exportation of equipment. Our operations are subject to government policies and product certification requirements worldwide. Governments in some foreign countries have become increasingly active in regulating the companies holding concessions, the exploration for oil and gas and other aspects of the oil and gas industries in their countries. In some areas of the world, this governmental activity has adversely affected the amount of exploration and development work done by major oil and gas companies and may continue to do so. Operations in less developed countries can be subject to legal systems that are not as mature or predictable as those in more developed countries, which can lead to greater uncertainty in legal matters and proceedings.

Changes in these conventions, regulations, policies or requirements could affect the demand for our services and products or result in the need to modify them, which may involve substantial costs or delays in sales and could have an adverse effect on our future operating results. Our export activities are subject to extensive and evolving trade regulations. Certain countries are subject to trade restrictions, embargoes, and sanctions imposed by the U.S. government. These restrictions and sanctions prohibit or limit us from participating in certain business activities in those countries.

Our operations are subject to numerous local, state, and federal laws and regulations in the United States and in foreign jurisdictions concerning the containment and disposal of hazardous materials, the remediation of contaminated properties, and the protection of the environment. While the industry has experienced an increase in general environmental regulation worldwide and laws and regulations protecting the environment have generally become more stringent, we do not believe compliance with these regulations will have a material adverse effect on our business or results of operations, and we do not currently foresee the need for significant expenditures to ensure our continued compliance with current environmental protection laws. Regulations in this area are subject to change, and there can be no assurance that future laws or regulations will not have a material adverse effect on us.

The Deepwater Horizon incident in the U.S. Gulf of Mexico in April 2010 resulted in a moratorium on certain offshore drilling activities by the Bureau of Ocean Energy Management, Regulation and Enforcement (“BOEMRE”). This moratorium and other regulatory initiatives in response to this incident adversely affected decisions of E&P companies to explore and drill in the Gulf of Mexico, and negatively impacted our Solutions segment in 2010 and 2011. During this time period, we experienced a significant reduction in data processing revenues attributable to the Gulf of Mexico. The BOEMRE has issued new safety and environmental guidelines and regulations for drilling in the Gulf of Mexico and other offshore regions, and may take other steps that could increase the costs of exploration and production, reduce the area of operations and result in additional permitting delays. In addition, there have been numerous other proposed changes in laws, regulations, guidance and policies in response to the Deepwater Horizon incident that could adversely affect E&P operations in the Gulf of Mexico. While the pace of drilling activities in the Gulf of Mexico has increased since late 2011, the Deepwater Horizon incident has resulted in heightened regulatory scrutiny, more stringent operating and safety standards, changes in equipment requirements and the availability and cost of insurance.

We do not engage in hydraulic fracturing services, a commonly used process in the completion of oil and natural gas wells in low permeability formations such as shales, which involves the injection of water, proppants, and chemicals under pressure into the target reservoir to stimulate hydrocarbon production. Our business, however, is dependent on the level of activity by our E&P customers, and hydrocarbons cannot be economically produced from certain reservoirs without extensive fracturing. Due to public concerns about any environmental impact that hydraulic fracturing may have, including potential impairment of groundwater quality, certain legislative and regulatory efforts at the federal, state, and local levels have been initiated to impose more stringent permitting and compliance obligations on these operations. Hydraulic fracturing typically is regulated by state oil and natural gas commissions, but the U.S. Environmental Protection Agency (the “EPA”) has asserted federal regulatory authority under the Safe Drinking Water Act over certain hydraulic fracturing. In addition, legislation has been introduced before Congress to provide for federal regulation of hydraulic fracturing under the Safe Drinking Water Act and to require disclosure of the chemicals used in the hydraulic fracturing process. Several states are also considering implementing, and some states have implemented, new regulations pertaining to hydraulic fracturing, including the disclosure of chemicals used in fracturing operations. A number of state and local governments have also adopted or are considering adopting additional requirements relating to hydraulic fracturing. Certain governmental reviews are either underway or being proposed that focus on environmental aspects of hydraulic fracturing practices.

The EPA has commenced a study of the potential environmental effects of hydraulic fracturing on drinking water and groundwater, with final results expected to be released in late 2014. Other governmental agencies, including the U.S. Department of Energy and the U.S. Department of the Interior, are evaluating various other aspects of hydraulic fracturing.

15

Any legislative and regulatory initiatives imposing significant additional restrictions on, or otherwise limiting, the hydraulic fracturing process could make it more difficult or costly to complete natural gas and oil wells. In the event such requirements are enacted, demand for our ResSCAN shale data libraries and seismic data acquisition services may be adversely affected.

Our customers’ operations are also significantly impacted in other respects by laws and regulations concerning the protection of the environment and endangered species. For instance, many of our marine contractors have been affected by regulations protecting marine mammals in the Gulf of Mexico. To the extent that our customers’ operations are disrupted by future laws and regulations, our business and results of operations may be materially adversely affected.

Employees

As of December 31, 2012, we had 1,071 regular, full-time employees, 698 of whom were located in the U.S. From time to time and on an as-needed basis, we supplement our regular workforce with individuals that we hire temporarily or as independent contractors in order to meet certain internal manufacturing or other business needs. Our U.S. employees are not represented by any collective bargaining agreement, and we have never experienced a labor-related work stoppage. We believe that our employee relations are satisfactory.

Financial Information by Segment and Geographic Area

For a discussion of financial information by business segment and geographic area, see Note 2 of Notes to Consolidated Financial Statements.

Item 1A.    Risk Factors

This report contains or incorporates by reference statements concerning our future results and performance and other matters that are “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933, as amended (“Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (“Exchange Act”). These statements involve known and unknown risks, uncertainties, and other factors that may cause our or our industry’s results, levels of activity, performance, or achievements to be materially different from any future results, levels of activity, performance, or achievements expressed or implied by such forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “would,” “should,” “intend,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” or “continue” or the negative of such terms or other comparable terminology. Examples of other forward-looking statements contained or incorporated by reference in this report include statements regarding:

• the expected outcome of litigation and other claims against us (see Item 3 -“Legal Proceedings” below);

• any future potential adverse effects on our liquidity from our being required to post an appeal bond in the WesternGeco litigation referred to in Item 3 - “Legal Proceedings” in the event that we are subject to a significant adverse judgment in the matter;

• the effects of current and future worldwide economic conditions and demand for oil and natural gas and seismic equipment and services;

• the effects of current and future unrest in the Middle East, North Africa and other regions;

• the effects of consolidation and vertical integration in the towed marine seismic streamers market;

• future benefits to be derived from our INOVA Geophysical joint venture;

• future increases of capital expenditures for seismic activities;

• the timing of anticipated sales and associated realized revenues;

• future levels of spending by our customers;

• the timing of future revenue realization of anticipated orders for seismic data processing work in our Solutions segment;

• future oil and gas commodity prices;

• future effects resulting from the April 2010 Deepwater Horizon incident, and any further slowdown in E&P activities in the Gulf of Mexico;

• expected net revenues, income from operations and net income;

• expected improved revenues from data processing services in our Solutions segment;

• expected gross margins for our services and products;

16

• future demand for seismic equipment and services;

• future benefits to our customers to be derived from new services and products;

• future benefits to be derived from our investments in technologies and acquired companies;

• future growth rates for our services and products;

• the degree and rate of future market acceptance of our new services and products;

• our expectations regarding oil and gas exploration and production companies and contractor end-users purchasing our more technologically-advanced services and products;

• anticipated timing and success of commercialization and capabilities of services and products under development and start-up costs associated with their development;

• future cash needs and future availability of cash to fund our operations and pay our obligations;

• potential future acquisitions;

• future levels of capital expenditures;

• our ability to maintain our costs at consistent percentages of our revenues in the future;

• future seismic industry fundamentals;

• future opportunities for new products and projected research and development expenses;

• future success in integrating acquired businesses;

• future compliance with our debt financial covenants;

• expectations regarding realization of deferred tax assets; and

• anticipated results regarding accounting estimates we make.

These forward-looking statements reflect our best judgment about future events and trends based on the information currently available to us. Our results of operations can be affected by inaccurate assumptions we make or by risks and uncertainties known or unknown to us. Therefore, we cannot guarantee the accuracy of the forward-looking statements. Actual events and results of operations may vary materially from our current expectations and assumptions. While we cannot identify all of the factors that may cause actual results to vary from our expectations, we believe the following factors should be considered carefully:

An unfavorable judgment could have a material adverse effect on our financial results and liquidity.

In August 2012, a jury in the WesternGeco L.L.C. v. ION Geophysical Corporation litigation (see Item 3. “Legal Proceedings” below) returned a verdict of approximately $105.9 million in damages against us. As of the date of this filing, the federal district trial court had not entered its judgment in the matter. Because the jury concluded that our infringement was willful, the trial court judge will determine, in his independent judgment, whether we willfully infringed and he should declare this case to be “exceptional.” In order for the judge to find willful infringement and declare this case exceptional, WesternGeco must prove, by clear and convincing evidence, that we acted with objective recklessness and in bad faith, fraudulently or engaged in similar misconduct related to the case. If the judge finds willful infringement and declares this case to be exceptional, the judge has the discretion, but not the obligation, to enhance the damages amount, not to exceed a trebling of the final judgment damages award plus reasonable attorneys’ fees. We believe that, given our understanding and analysis of applicable law and the relevant facts and evidence in this case, and after considering the advice of counsel, it is unlikely that we will incur any additional loss as a result of the jury’s finding of willfulness. We also believe that the verdict is inconsistent with applicable law and the facts or evidence in the case, and we have filed motions with the trial court to overturn all or portions of the verdict. If the trial court enters a judgment that is adverse to us, we would continue to defend this matter vigorously and would intend to appeal the judgment to the United States Court of Appeals for the Federal Circuit.

In order to appeal the judgment, we may be required to post an appeal bond for the full amount of damages entered in the judgment. To post and collateralize a bond of that size, or if we become subject to a significant adverse judgment in this lawsuit, we might have to utilize a combination of cash on hand, undrawn balances available under our revolving line of credit under our senior debt facility and possibly incur additional debt and/or equity financing. The posting and collateralization of such an appeal bond could have a possible adverse effect on our liquidity. If we are unable to post the appeal bond, we may be unable to stay enforcement of the judgment or appeal the case. At this time, we are unable to determine whether an appeal bond would be required or the amount of such an appeal bond. Similarly, we are unable to predict the timing of the final judgment being entered by the trial court or the timing of posting any required appeal bond.

17

No assurances can be made whether our efforts to raise additional cash would be successful, and if so, whether the terms of such financings would be on favorable terms to us and our stockholders. If additional funds are raised through the issuance of debt and/or equity securities, these securities could have rights, preferences and privileges more favorable to those that holders of our current debt or equity securities currently have, and the terms of these securities could impose restrictions on our operations. If we are unable to raise additional capital under these circumstances, our business, operating results and financial condition may be harmed.

If our efforts to reverse or reduce the verdict substantially are unsuccessful, it would likely have the effect of reducing our capital resources available to fund our operations and take advantage of certain business opportunities, which could have a material adverse effect on our business, financial condition, results of operations and cash flows.

As a technology-focused company, we are continually exposed to risks related to complex, highly technical services and products.

We have made, and we will continue to make, strategic decisions from time to time as to the technologies in which we invest. If we choose the wrong technology, our financial results could be adversely impacted. Our operating results are dependent upon our ability to improve and refine our seismic imaging services and to successfully develop, manufacture, and market our products and other services and products. New technologies generally require a substantial investment before any assurance is available as to their commercial viability. If we choose the wrong technology, or if our competitors develop or select a superior technology, we could lose our existing customers and be unable to attract new customers, which would harm our business and operations.

The markets for our services and products are characterized by changing technology and new product introductions. We must invest substantial capital to develop and maintain a leading edge in technology, with no assurance that we will receive an adequate rate of return on those investments. If we are unable to develop and produce successfully and timely new or enhanced services and products, we will be unable to compete in the future and our business, our results of operations and our financial condition will be materially and adversely affected. Our business could suffer from unexpected developments in technology, or from our failure to adapt to these changes. In addition, the preferences and requirements of customers can change rapidly.

The businesses of our Solutions and Software segments, being more concentrated in software, processing services, and proprietary technologies, have also exposed us to various risks that these technologies typically encounter, including the following:

• future competition from more established companies entering the market;

• technology obsolescence;

• dependence upon continued growth of the market for seismic data processing;

• the rate of change in the markets for these segments’ technology and services;

• research and development efforts not proving sufficient to keep up with changing market demands;

• dependence on third-party software for inclusion in these segments’ services and products;

• misappropriation of these segments’ technology by other companies;

• alleged or actual infringement of intellectual property rights that could result in substantial additional costs;

• difficulties inherent in forecasting sales for newly developed technologies or advancements in technologies;

• recruiting, training, and retaining technically skilled personnel that could increase the costs for these segments, or limit their growth; and

• the ability to maintain traditional margins for certain of their technology or services.

Seismic data acquisition and data processing technologies historically have progressed rather rapidly, and we expect this progression to continue. In order to remain competitive, we must continue to invest additional capital to maintain, upgrade and expand our seismic data acquisition and processing capabilities. However, due to potential advances in technology and the related costs associated with such technological advances, we may not be able to fulfill this strategy, thus possibly affecting our ability to compete.

Our customers often require demanding specifications for performance and reliability of our services and products. Because many of our products are complex and often use unique advanced components, processes, technologies, and techniques, undetected errors and design and manufacturing flaws may occur. Even though we attempt to assure that our systems are always reliable in the field, the many technical variables related to their operations can cause a combination of factors that can, and have from time to time, caused performance and service issues with certain of our products. Product defects result in higher product service, warranty, and replacement costs and may affect our customer relationships and industry

18

reputation, all of which may adversely impact our results of operations. Despite our testing and quality assurance programs, undetected errors may not be discovered until the product is purchased and used by a customer in a variety of field conditions. If our customers deploy our new products and they do not work correctly, our relationship with our customers may be materially and adversely affected.

As a result of our systems’ advanced and complex nature, we expect to experience occasional operational issues from time to time. Generally, until our products have been tested in the field under a wide variety of operational conditions, we cannot be certain that performance and service problems will not arise. In that case, market acceptance of our new products could be delayed and our results of operations and financial condition could be adversely affected.

We are subject to intense competition, which could limit our ability to maintain or increase our market share or to maintain our prices at profitable levels.

Many of our sales are obtained through a competitive bidding process, which is standard for our industry. Competitive factors in recent years have included price, technological expertise, and a reputation for quality, safety and dependability. While no single company competes with us in all of our segments, we are subject to intense competition in each of our segments. New entrants in many of the markets in which certain of our services and products are currently strong should be expected. See Item 1. “Business — Competition.” We compete with companies that are larger than we are in terms of revenues, number of processing locations and sales and marketing resources. A few of our competitors have a competitive advantage in being part of an affiliated seismic contractor company. In addition, we compete with major service providers and government-sponsored enterprises and affiliates. Some of our competitors conduct seismic data acquisition operations as part of their regular business, which we do not, and have greater financial and other resources than we do. These and other competitors may be better positioned to withstand and adjust more quickly to volatile market conditions, such as fluctuations in oil and natural gas prices, as well as changes in government regulations. In addition, any excess supply of services and products in the seismic services market could apply downward pressure on prices for our services and products. The negative effects of the competitive environment in which we operate could have a material adverse effect on our results of operations.

We may be unable to obtain broad intellectual property protection for our current and future products and we may become involved in intellectual property disputes.

We rely on a combination of patent, copyright, and trademark laws, trade secrets, confidentiality procedures, and contractual provisions to protect our proprietary technologies. We believe that the technological and creative skill of our employees, new product developments, frequent product enhancements, name recognition, and reliable product maintenance are the foundations of our competitive advantage. Although we have a considerable portfolio of patents, copyrights, and trademarks, these property rights offer us only limited protection. Our competitors may attempt to copy aspects of our products despite our efforts to protect our proprietary rights, or may design around the proprietary features of our products. Policing unauthorized use of our proprietary rights is difficult, and we are unable to determine the extent to which such use occurs. Our difficulties are compounded in certain foreign countries where the laws do not offer as much protection for proprietary rights as the laws of the United States.

Third parties inquire and claim from time to time that we have infringed upon their intellectual property rights. Many of our competitors own their own extensive global portfolio of patents, copyrights, trademarks, trade secrets, and other intellectual property to protect their proprietary technologies. We believe that we have in place appropriate procedures and safeguards to help ensure that we do not violate a third party’s intellectual property rights. However, no set of procedures and safeguards is infallible. We may unknowingly and inadvertently take action that is inconsistent with a third party’s intellectual property rights, despite our efforts to do otherwise. Any such claims from third parties, with or without merit, could be time consuming, result in costly litigation, result in injunctions, require product modifications, cause product shipment delays or require us to enter into royalty or licensing arrangements. Such claims could have a material adverse effect on our results of operations and financial condition.

Much of our litigation in recent years have involved disputes over our and others’ rights to technology. See Item 3. “Legal Proceedings.”

Our INOVA Geophysical joint venture with BGP involves numerous risks.

Our INOVA Geophysical joint venture with BGP is focused on designing, engineering, manufacturing, research and development, sales and marketing and field support of land-based equipment used in seismic data acquisition for the oil and gas industry. Excluded from the scope of the joint venture’s business are the analog sensor businesses of our company and BGP and the businesses of certain companies in which BGP or we are currently a minority owner. In addition to these excluded businesses, all of our other businesses — including our Solutions, Systems and Software segments — remain owned and operated by us and do not comprise a part of the joint venture.

19

The INOVA Geophysical joint venture involves the integration of multiple product lines and business models contributed by us and BGP that previously have operated independently. This has been a complex and time-consuming process.

There can be no assurance that we will achieve the expected benefits of the joint venture. The INOVA Geophysical joint venture (and any future joint ventures or acquisitions that we may complete), may result in unexpected costs, expenses, and liabilities, which may have a material adverse effect on our business, financial condition or results of operations. INOVA Geophysical may encounter difficulties in developing and expanding its business. We may experience difficulties in funding any future capital contributions to the joint venture, exercising influence over the management and activities of the joint venture, quality control over joint venture products and services and potential conflicts of interest with the joint venture and our joint venture partner. Any inability to meet our obligations as a joint venture partner under the joint venture agreement could result in our being subject to penalties and reduced percentage interests in the joint venture for our company. Also, we could be disadvantaged in the event of disputes and controversies with our joint venture partner, since our joint venture partner is a relatively significant customer of our services and products and future services and products of the joint venture as well as a holder of approximately 15% of our common stock.

The joint venture is also subject to, and exposes us to, various additional risks that could adversely affect our results of operations. These risks include the following:

• as a condition in our senior secured credit facility, INOVA Geophysical provides a bank stand-by letter of credit as credit support for our obligations under the credit facility;

• increased costs associated with the integration and operation of the new business and the management of geographically dispersed operations;

• risks associated with the assimilation of new technologies (including incorporating BGP's land seismic equipment with our land seismic imaging product lines that we contributed to the joint venture), operations, sites, and personnel;

• difficulties in retaining and integrating key technical, sales and marketing personnel and the possible loss of such employees and costs associated with their loss;

• difficulties associated with preserving relationships with our customers, partners and vendors;

• risks that any technology developed by the joint venture may not perform as well as we had anticipated;

• the diversion of management’s attention and other resources from other business operations and related concerns;

• the potential inability to replicate operating efficiencies in the joint venture’s operations;

• potential impairments of goodwill and intangible assets;

• the requirement to maintain uniform standards, controls and procedures;

• the impairment of relationships with employees and customers as a result of the integration of management personnel from different companies;

• the divergence of our interests from BGP’s interests in the future, disagreements with BGP on ongoing manufacturing, research and development and operational activities, or the amount, timing or nature of further investments in the joint venture;

• the terms of our joint venture arrangements may turn out to be unfavorable to us;

• we currently own 49% of the total equity interests in INOVA Geophysical, so there are certain decisions affecting the business of the joint venture that we cannot control or influence;

• we may not be able to realize the operating efficiencies, cost savings or other benefits that we expect from the joint venture;

• the joint venture’s cash flows may be inadequate to fund its capital requirements, thereby requiring additional contributions to the capital of the joint venture by us and by BGP;

• joint venture profits and cash flows may prove inadequate to fund cash dividends from the joint venture to the joint venture partners; and

• the joint venture may experience difficulties and delays in production of the joint venture’s products.

If the INOVA Geophysical joint venture is not successful, our business, results of operations and financial condition will likely be adversely affected.

20

In addition, the terms of the joint venture’s governing instruments and the agreements regarding BGP’s investment in our company contain a number of restrictive provisions affecting ION. For example, an investors’ rights agreement grants pre-emptive rights to BGP with respect to certain future issuances of our stock. These restrictions may adversely affect our ability to quickly raise funds through a future issuance of our securities, and could have the effect of discouraging, delaying or preventing a merger or acquisition of our company that our stockholders may otherwise consider to be favorable.

We derive a substantial amount of our revenues from foreign operations and sales, which pose additional risks.

Sales to customer destinations outside of North America represented 69%, 66% and 60% of our consolidated net revenues for 2012, 2011 and 2010, respectively, of our consolidated net revenues. We believe that export sales will remain a significant percentage of our revenue. U.S. export restrictions affect the types and specifications of products we can export. Additionally, in order to complete certain sales, U.S. laws may require us to obtain export licenses, and we cannot assure you that we will not experience difficulty in obtaining these licenses.

Like many energy services companies, we have operations in and sales into certain international areas, including parts of the Middle East, West Africa, Latin America, Asia Pacific and the former Soviet Union, that are subject to risks of war, political disruption, civil disturbance, political corruption, possible economic and legal sanctions (such as possible restrictions against countries that the U.S. government may deem to sponsor terrorism) and changes in global trade policies. Our sales or operations may become restricted or prohibited in any country in which the foregoing risks occur. In particular, the occurrence of any of these risks could result in the following events, which in turn, could materially and adversely impact our results of operations:

• disruption of oil and natural gas E&P activities;

• restriction on the movement and exchange of funds;

• inhibition of our ability to collect receivables;

• enactment of additional or stricter U.S. government or international sanctions;

• limitation of our access to markets for periods of time;

• expropriation and nationalization of assets of our company or those of our customers;

• political and economic instability, which may include armed conflict and civil disturbance;

• currency fluctuations, devaluations, and conversion restrictions;

• confiscatory taxation or other adverse tax policies; and

• governmental actions that may result in the deprivation of our contractual rights.

Our international operations and sales increase our exposure to other countries’ restrictive tariff regulations, other import/export restrictions and customer credit risk.

In addition, we are subject to taxation in many jurisdictions and the final determination of our tax liabilities involves the interpretation of the statutes and requirements of taxing authorities worldwide. Our tax returns are subject to routine examination by taxing authorities, and these examinations may result in assessments of additional taxes, penalties and/or interest.

If we do not effectively manage our transition into new services and products, our revenues may suffer.

Services and products for the seismic industry are characterized by rapid technological advances in hardware performance, software functionality and features, frequent introduction of new services and products, and improvement in price characteristics relative to product and service performance. Among the risks associated with the introduction of new services and products are delays in development or manufacturing, variations in costs, delays in customer purchases or reductions in price of existing products in anticipation of new introductions, write-offs or write-downs of the carrying costs of inventory and raw materials associated with prior generation products, difficulty in predicting customer demand for new product and service offerings and effectively managing inventory levels so that they are in line with anticipated demand, risks associated with customer qualification, evaluation of new products, and the risk that new products may have quality or other defects or may not be supported adequately by application software. The introduction of new services and products by our competitors also may result in delays in customer purchases and difficulty in predicting customer demand. If we do not make an effective transition from existing services and products to future offerings, our revenues and margins may decline.

Furthermore, sales of our new services and products may replace sales, or result in discounting of some of our current product or service offerings, offsetting the benefits of a successful introduction. In addition, it may be difficult to ensure performance of new services and products in accordance with our revenue, margin, and cost estimations and to achieve

21

operational efficiencies embedded in our estimates. Given the competitive nature of the seismic industry, if any of these risks materializes, future demand for our services and products, and our future results of operations, may suffer.

We invest significant sums of money in acquiring and processing seismic data for our Solutions’ multi-client data library.

We invest significant amounts in acquiring and processing new seismic data to add to our Solutions’ multi-client data library. A majority of these investments are funded by our customers, while the remainder is recovered through future data licensing fees. In 2012, we invested approximately $146 million in our multi-client data library. Our customers generally commit to licensing the data prior to our initiating a new data library acquisition program. However, the aggregate amounts of future licensing fees for this data are uncertain and depend on a variety of factors, including the market prices of oil and gas, customer demand for seismic data in the library, and the availability of similar data from competitors.

By making these investments in acquiring and processing new seismic data for our Solutions’ multi-client library, we are exposed to the following risks:

• We may not fully recover our costs of acquiring and processing seismic data through future sales. The ultimate amounts involved in these data sales are uncertain and depend on a variety of factors, many of which are beyond our control.

• The timing of these sales is unpredictable and can vary greatly from period to period. The costs of each survey are capitalized and then amortized as a percentage of sales and/or over the expected useful life of the data. This amortization will affect our earnings and, when combined with the sporadic nature of sales, will result in increased earnings volatility.

• Regulatory changes that affect companies’ ability to drill, either generally or in a specific location where we have acquired seismic data, could materially adversely affect the value of the seismic data contained in our library. Technology changes could also make existing data sets obsolete. Additionally, each of our individual surveys has a limited book life based on its location and oil and gas companies’ interest in prospecting for reserves in such location, so a particular survey may be subject to a significant decline in value beyond our initial estimates.

• The value of our multi-client data could be significantly adversely affected if any material adverse change occurs in the general prospects for oil and gas exploration, development and production activities.

• The cost estimates upon which we base our pre-commitments of funding could be wrong. The result could be losses that have a material adverse effect on our financial condition and results of operations. These pre-commitments of funding are subject to the creditworthiness of our clients. In the event that a client refuses or is unable to pay its commitment, we could incur a substantial loss on that project.

• As part of our asset-light strategy, we routinely charter vessels from third-party vendors to acquire seismic data for our multi-client business. As a result, our cost to acquire our multi-client data could significantly increase if vessel charter prices rise materially.

Any reduction in the market value of such data will require us to write down its recorded value, which could have a significant material adverse effect on our results of operations.

Global economic conditions, credit market uncertainties and lower natural gas prices could have an adverse effect on customer demand for certain of our services and products, which in turn would adversely affect our results of operations, our cash flows, our financial condition and our stock price.

The global recession resulting from the 2008 financial crisis contributed to weakened demand and lower prices for natural gas on a worldwide basis, which reduced the levels of exploration for natural gas. Historically, demand for our services and products has been sensitive to the level of exploration spending by E&P companies and geophysical contractors. The demand for our services and products will be lessened if exploration expenditures by E&P companies are reduced. During periods of reduced levels of exploration for oil and natural gas, there have been oversupplies of seismic data and downward pricing pressures on our seismic services and products, which, in turn, have limited our ability to meet sales objectives and maintain profit margins for our services and products. In the past, these then-prevailing industry conditions have had the effect of reducing our revenues and operating margins. The markets for oil and gas historically have been volatile and may continue to be so in the future.

Turmoil or uncertainty in the credit markets and its potential impact on the liquidity of major financial institutions may have an adverse effect on our ability to fund our business strategy through borrowings under either existing or new debt facilities in the public or private markets and on terms we believe to be reasonable. Likewise, there can be no assurance that our customers will be able to borrow money for their working capital or capital expenditures on a timely basis or on reasonable terms, which could have a negative impact on their demand for our services and products and impair their ability to pay us for our services and products on a timely basis, or at all.

22

Our sales have historically been affected by interest rate fluctuations and the availability of liquidity, and we would be adversely affected by increases in interest rates or liquidity constraints. Rising interest rates may also make certain alternative services and products provided by our competitors more attractive to customers, which could lead to a decline in demand for our services and products. This could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Our operating results may fluctuate from period to period, and we are subject to seasonality factors.

Our operating results are subject to fluctuations from period to period as a result of new product or service introductions, the timing of significant expenses in connection with customer orders, unrealized sales, levels of research and development activities in different periods, the product mix sold, and the seasonality of our business. Because many of our products feature a high sales price and are technologically complex, we generally have experienced long sales cycles for these products and historically incur significant expense at the beginning of these cycles for component parts and other inventory necessary to manufacture a product in anticipation of a future sale, which may not ultimately occur. In addition, the revenues from our sales can vary widely from period to period due to changes in customer requirements and demand. These factors can create fluctuations in our net revenues and results of operations from period to period. Variability in our overall gross margins for any period, which depend on the percentages of higher-margin and lower-margin services and products sold in that period, compounds these uncertainties. As a result, if net revenues or gross margins fall below expectations, our results of operations and financial condition will likely be adversely affected. Additionally, our business can be seasonal in nature, with strongest demand typically in the fourth calendar quarter of each year. Customer budgeting cycles at times result in higher spending activity levels by our customers at different points of the year.

Due to the relatively high sales price of many of our products and seismic data libraries, our quarterly operating results have historically fluctuated from period to period due to the timing of orders and shipments and the mix of services and products sold. This uneven pattern makes financial predictions for any given period difficult, increases the risk of unanticipated variations in our quarterly results and financial condition, and places challenges on our inventory management. Delays caused by factors beyond our control, such as the granting of permits for seismic surveys by third parties, the effect from disasters such as the Deepwater Horizon incident in the Gulf of Mexico and the availability and equipping of marine vessels, can affect our Solutions segment’s revenues from its processing and GeoVentures services from period to period. Also, delays in ordering products or in shipping or delivering products in a given period could significantly affect our results of operations for that period. Fluctuations in our quarterly operating results may cause greater volatility in the market price of our common stock.

The loss of any significant customer could materially and adversely affect our results of operations and financial condition.

We have traditionally relied on a relatively small number of significant customers. Consequently, our business is exposed to the risks related to customer concentration. No single customer represented 10% or more of our consolidated net revenues for 2012, 2011 and 2010; however, our top five customers in total represented approximately 28%, 30% and 28%, respectively, of our consolidated net revenues during those years. The loss of any of our significant customers or deterioration in our relations with any of them could materially and adversely affect our results of operations and financial condition.

During the last ten years, our traditional seismic contractor customers have been rapidly consolidating, thereby consolidating the demand for our services and products. In September 2012, CGGVeritas announced that it had agreed to acquire Fugro’s geoscience division; the transaction was closed in January 2013. This acquisition represents the further consolidation ongoing in this market, and could have the effect of reducing the number of our potential customers and vessel outfitting opportunities. The loss of any of our significant customers to further consolidation could materially and adversely affect our results of operations and financial condition.

Our business depends on the level of exploration and production activities by the oil and natural gas industry. If oil and natural gas prices or the level of capital expenditures by E&P companies were to decline, demand for our services and products would decline and our results of operations would be adversely affected.

Demand for our services and products depends upon the level of spending by E&P companies and seismic contractors for exploration and development activities, and those activities depend in large part on oil and gas prices. Spending by our customers on services and products that we provide is highly discretionary in nature, and subject to rapid and material change. Any significant decline in oil and gas related spending on behalf of our customers could cause alterations in our capital spending plans, project modifications, delays or cancellations, general business disruptions or delays in payment, or non-payment of amounts that are owed to us and could have a material adverse effect on our financial condition and results of operations and on our ability to continue to satisfy all of the covenants in our loan agreements. Additionally, increases in oil and gas prices may not increase demand for our services and products or otherwise have a positive effect on our financial condition or results of operations. E&P companies' willingness to explore, develop and produce depends largely upon prevailing industry conditions that are influenced by numerous factors over which our management has no control, such as:

23

• the supply of and demand for oil and gas;

• the level of prices, and expectations about future prices, of oil and gas;

• the cost of exploring for, developing, producing and delivering oil and gas;

• the expected rates of decline for current production;

• the discovery rates of new oil and gas reserves;

• weather conditions, including hurricanes, that can affect oil and gas operations over a wide area, as well as less severe inclement weather that can preclude or delay seismic data acquisition;

• domestic and worldwide economic conditions;

• political instability in oil and gas producing countries;

• technical advances affecting energy consumption;

• government policies regarding the exploration, production and development of oil and gas reserves;

• the ability of oil and gas producers to raise equity capital and debt financing; and

• merger and divestiture activity among oil and gas companies and seismic contractors.

Although we believe that the long-term trend is favorable, the level of oil and gas exploration and production activity has been volatile in recent years. Previously forecasted trends in oil and gas exploration and development activities may not continue and demand for our services and products may not reflect the level of activity in the industry. Any prolonged substantial reduction in oil and gas prices would likely affect oil and gas production levels and therefore adversely affect demand for the services we provide and products we sell.

The drilling moratorium in the U.S. Gulf of Mexico and the other regulatory initiatives undertaken in response to the Deepwater Horizon disaster and resulting oil spill in the U.S. Gulf of Mexico, has adversely affected, and could adversely affect in the future, our customers and our business.

In April 2010, the Deepwater Horizon drilling rig in the U.S. Gulf of Mexico sank following a catastrophic explosion and fire, which resulted in the release of millions of barrels of crude oil. In response to this incident, the Minerals Management Service (now known as the BOEMRE) of the U.S. Department of the Interior issued a notice in May 2010 implementing a six-month moratorium on certain drilling activities in the U.S.Gulf of Mexico. The moratorium was lifted in October 2010, but the BOEMRE has issued and is expected to issue new safety and environmental guidelines or regulations for drilling in the Gulf of Mexico and in other U.S. offshore locations. As a result of these changes, the permitting process for exploration and development activities in the U.S. Gulf of Mexico slowed considerably, reducing the level of E&P activity there. The reduced level of activity adversely affected our results of operations and financial condition. Our Solutions segment was particularly impacted negatively during 2010 and 2011 by a reduction in data processing business from the Gulf of Mexico and new venture and multi-client seismic data library sales from our GulfSPAN seismic dataset.

Future changes in laws or regulations regarding offshore oil and gas exploration and development activities and decisions by customers, governmental agencies, or other industry participants in response to these changes, could reduce demand for our services and products, which could have a negative impact on our financial position, results of operations or cash flows. We cannot reasonably or reliably estimate that such changes will occur, when they will occur, or whether they will impact us. Such changes can occur quickly within a region, similar to the Deepwater Horizon incident, which may impact both the affected region and global exploration and production, and we may not be able to respond quickly, or at all, to mitigate these changes In addition, these future laws and regulations could result in increased compliance costs or additional operating restrictions that may adversely affect the financial health of our customers and decrease the demand for our services and products.

See “– Our operations, and the operations of our customers, are subject to numerous government regulations, which could adversely limit our operating flexibility” below.

Our stock price has been volatile from time to time, declining precipitously from time to time during the period from 2008 through 2011, and it could decline again.

The securities markets in general and our common stock in particular have experienced significant price and volume volatility in recent years. The market price and trading volume of our common stock may continue to experience significant fluctuations due not only to general stock market conditions but also to a change in sentiment in the market regarding our operations or business prospects or those of companies in our industry. In addition to the other risk factors discussed in this section, the price and volume volatility of our common stock may be affected by:

24

• operating results that vary from the expectations of securities analysts and investors;

• factors influencing the levels of global oil and natural gas exploration and exploitation activities, such as depressed prices for natural gas in North America or disasters such as the Deepwater Horizon incident in the Gulf of Mexico in 2010;

• the operating and securities price performance of companies that investors or analysts consider comparable to us;

• announcements of strategic developments, acquisitions and other material events by us or our competitors; and

• changes in global financial markets and global economies and general market conditions, such as interest rates, commodity and equity prices and the value of financial assets.

To the extent that the price of our common stock remains at lower levels or it declines further, our ability to raise funds through the issuance of equity or otherwise use our common stock as consideration will be reduced. In addition, further increases in our leverage may make it more difficult for us to access additional capital. These factors may limit our ability to implement our operating and growth plans.

If we, our option holders or stockholders holding registration rights sell additional shares of our common stock in the future, the market price of our common stock could decline. Additionally, our outstanding shares of Series D Preferred Stock are convertible into shares of our common stock. The conversion of the Series D Preferred Stock and exercise of our stock options could result in substantial dilution to our existing stockholders. Sales in the open market of the shares of common stock acquired upon such conversion or exercises may have the effect of reducing the then current market price for our common stock.

The market price of our common stock could decline as a result of sales of a large number of shares of our common stock in the market in the future, or the perception that such sales could occur. These sales, or the possibility that these sales may occur, could make it more difficult for us to sell equity securities in the future at a time and at a price that we deem appropriate. As of February 12, 2013, we had 156,390,699 shares of common stock issued and outstanding. Substantially all of these shares are available for sale in the public market, subject in some cases to volume and other limitations or delivery of a prospectus. At February 12, 2013, we had outstanding stock options to purchase up to 7,860,850 shares of our common stock at a weighted average exercise price of $7.22 per share. We also had, as of that date, 1,026,449 shares of common stock reserved for issuance under outstanding restricted stock and restricted stock unit awards.

During 2009 we issued in a privately-negotiated transaction 18.5 million shares of our common stock to certain institutional investors. In March 2010 we issued 23.8 million shares to BGP in a privately-negotiated transaction in connection with the formation of our INOVA Geophysical joint venture. These shares may be resold into the public markets in sale transactions pursuant to currently-effective registration statements filed with the SEC or pursuant to another exemption from registration. Sales in the public market of a large number of shares of common stock (or the perception that such sales could occur) could apply downward pressure on the prevailing market price of our common stock.

As of February 12, 2013, there were 27,000 shares of our Seried D Cumulative Convertible Preferred Stock outstanding. In June 2012, the previous holder of these shares, Fletcher International, Ltd. (“Fletcher”), filed a voluntary petition for relief under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of New York. All of the shares of Series D Preferred Stock, which had been pledged by Fletcher to secure certain indebtedness, were sold by the pledgee to an affiliate of D.E. Shaw & Co., Inc. in June 2012. The shares of our Series D Preferred Stock are currently convertible into 6,065,075 shares of our common stock. A conversion of our outstanding shares of Series D Preferred Stock into shares of our common stock will dilute the ownership interests of existing stockholders. Sales in the public market of shares of common stock issued upon conversion would likely apply downward pressure on prevailing market prices of our common stock.

The conversion price of our outstanding Series D Preferred Stock is also subject to certain customary anti-dilution adjustments. For additional information regarding the terms of our Series D Preferred Stock, see Note 12 “— Cumulative Convertible Preferred Stock” of Notes to Consolidated Financial Statements contained elsewhere in this Form 10-K. We currently have ongoing litigation with Fletcher in Delaware regarding certain issues concerning our Series D Preferred Stock. For more information regarding our litigation with Fletcher, see Item 3. “Legal Proceedings.”

Shares of our common stock are also subject to certain demand and piggyback registration rights held by Laitram, L.L.C., and an affiliate of one of our directors. We also may enter into additional registration rights agreements in the future in connection with any subsequent acquisitions or securities transactions we may undertake. Any sales of our common stock under these registration rights arrangements with Laitram or other stockholders could be negatively perceived in the trading markets and negatively affect the price of our common stock. Sales of a substantial number of our shares of common stock in the public

25

market under these arrangements, or the expectation of such sales, could cause the market price of our common stock to decline.

Goodwill and intangible assets that we have recorded in connection with our acquisitions are subject to impairment evaluations and, as a result, we could be required to write-off additional goodwill and intangible assets, which may adversely affect our financial condition and results of operations.

In accordance with Accounting Standard Codification (“ASC”) 350, “Intangibles – Goodwill and Other” (“ASC 350”), we are required to compare the fair value of our goodwill and intangible assets (when certain impairment indicators under ASC 350 are present) to their carrying amount. If the fair value of such goodwill or intangible assets is less than its carrying value, an impairment loss is recorded to the extent that the fair value of these assets within the reporting units is less than their carrying value. In 2008, we recorded an impairment charge of $252.2 million related to our goodwill and intangible assets and in 2009 we recorded an impairment charge of $38.0 million related to our intangible assets. Any further reduction in or impairment of the value of our goodwill or other intangible assets will result in additional charges against our earnings, which could have a material adverse effect on our reported results of operations and financial position in future periods. At December 31, 2012, our goodwill and other intangible asset balances were $55.3 million and $14.8 million, respectively.

Due to the international scope of our business activities, our results of operations may be significantly affected by currency fluctuations.

We derive a significant portion of our consolidated net revenues from international sales, subjecting us to risks relating to fluctuations in currency exchange rates. Currency variations can adversely affect margins on sales of our products in countries outside of the United States and margins on sales of products that include components obtained from suppliers located outside of the United States. Through our subsidiaries, we operate in a wide variety of jurisdictions, including the United Kingdom, China, Canada, the Netherlands, Brazil, Russia, the United Arab Emirates, Egypt and other countries. Certain of these countries have experienced geopolitical instability, economic problems and other uncertainties from time to time. To the extent that world events or economic conditions negatively affect our future sales to customers in these and other regions of the world, or the collectability of receivables, our future results of operations, liquidity and financial condition may be adversely affected. We currently require customers in certain higher risk countries to provide their own financing. We do not currently extend long-term credit through notes to companies in countries where we perceive excessive credit risk.

A majority of our foreign net working capital is within the United Kingdom. Our subsidiaries in the U.K. and in other countries receive their income and pay their expenses primarily in their local currencies. To the extent that transactions of these subsidiaries are settled in their local currencies, a devaluation of those currencies versus the U.S. dollar could reduce the contribution from these subsidiaries to our consolidated results of operations as reported in U.S. dollars. For financial reporting purposes, such depreciation will negatively affect our reported results of operations since earnings denominated in foreign currencies would be converted to U.S. dollars at a decreased value. In addition, since we participate in competitive bids for sales of certain of our services and products that are denominated in U.S. dollars, a depreciation of the U.S. dollar against other currencies could harm our competitive position relative to other companies. While we have employed economic cash flow and fair value hedges to minimize the risks associated with these exchange rate fluctuations, the hedging activities may be ineffective or may not offset more than a portion of the adverse financial impact resulting from currency variations. Accordingly, we cannot assure you that fluctuations in the values of the currencies of countries in which we operate will not materially adversely affect our future results of operations.

We rely on highly skilled personnel in our businesses, and if we are unable to retain or motivate key personnel or hire qualified personnel, we may not be able to grow effectively.

Our performance is largely dependent on the talents and efforts of highly skilled individuals. Our future success depends on our continuing ability to identify, hire, develop, motivate, and retain skilled personnel for all areas of our organization. We require highly skilled personnel to operate and provide technical services and support for our businesses. Competition for qualified personnel required for our data processing operations and our other segments’ businesses has intensified in recent years. Our growth has presented challenges to us to recruit, train, and retain our employees while managing the impact of potential wage inflation and the lack of available qualified labor in some markets where we operate. A well-trained, motivated and adequately-staffed work force has a positive impact on our ability to attract and retain business. Our continued ability to compete effectively depends on our ability to attract new employees and to retain and motivate our existing employees.

Certain of our facilities could be damaged by hurricanes and other natural disasters, which could have an adverse effect on our results of operations and financial condition.

Certain of our facilities are located in regions of the United States that are susceptible to damage from hurricanes and other weather events, and, during 2005, were impacted by hurricanes or other weather events. Our Systems segment leases 92,000 square feet of facilities located in Harahan, Louisiana, in the greater New Orleans metropolitan area. In late August

26

2005, we suspended operations at these facilities and evacuated and locked down the facilities in preparation for Hurricane Katrina. These facilities did not experience flooding or significant damage during or after the hurricane. However, because of employee evacuations, power failures and lack of related support services, utilities and infrastructure in the New Orleans area, we were unable to resume full operations at the facilities until late September 2005. In September 2008, we lost power and related services for several days at our offices located in the Houston metropolitan area, which includes a substantial portion of our data processing infrastructure, and in Harahan, Louisiana as a result of Hurricane Ike and Hurricane Gustav.

Future hurricanes or similar natural disasters that impact our facilities may negatively affect our financial position and operating results for those periods. These negative effects may include reduced production, product sales and data processing revenues; costs associated with resuming production; reduced orders for our services and products from customers that were similarly affected by these events; lost market share; late deliveries; additional costs to purchase materials and supplies from outside suppliers; uninsured property losses; inadequate business interruption insurance and an inability to retain necessary staff. To the extent that climate change increases the severity of hurricanes and other weather events, as some have suggested, it could worsen the severity of these negative effects on our financial position and operating results.

Our operations, and the operations of our customers, are subject to numerous government regulations, which could adversely limit our operating flexibility.

In addition to the specific regulatory risks discussed elsewhere in this Item 1A. “Risk Factors” section, our operations are subject to other laws, regulations, government policies, and product certification requirements worldwide. Changes in such laws, regulations, policies or requirements could affect the demand for our products or result in the need to modify products, which may involve substantial costs or delays in sales and could have an adverse effect on our future operating results. Our export activities are also subject to extensive and evolving trade regulations. Certain countries are subject to restrictions, sanctions, and embargoes imposed by the United States government. These restrictions, sanctions, and embargoes also prohibit or limit us from participating in certain business activities in those countries. Our operations are subject to numerous local, state, and federal laws and regulations in the United States and in foreign jurisdictions concerning the containment and disposal of hazardous materials, the remediation of contaminated properties, and the protection of the environment. These laws have been changed frequently in the past, and there can be no assurance that future changes will not have a material adverse effect on us. In addition, our customers’ operations are also significantly impacted by laws and regulations concerning the protection of the environment and endangered species. Consequently, changes in governmental regulations applicable to our customers may reduce demand for our services and products. To the extent that our customers’ operations are disrupted by future laws and regulations, our business and results of operations may be materially and adversely affected.

Climate change regulations or legislation could result in increased operating costs and reduced demand for the oil and gas our clients intend to produce.

In response to concerns suggesting that emissions of and greenhouse gases (including carbon dioxide and methane) (“GHGs”) may be contributing to global climate change, legislative and regulatory measures to address the concerns are in various phases of discussion or implementation. We are aware of the increasing focus of local, state, national and international regulatory bodies on GHG emissions and climate change issues. The United States Congress may consider legislation to reduce GHG emissions. Although it is not possible at this time to predict whether proposed legislation or regulations will be adopted, any such future laws and regulations could result in increased compliance costs or additional operating restrictions. Any additional costs or operating restrictions associated with legislation or regulations regarding GHG emissions could have a material adverse impact on our business, financial condition and results of operations.

At least one-third of the states, either individually or through multi-state regional initiatives, have already taken legal measures intended to reduce GHG emissions, primarily through the planned development of GHG emission inventories and/or GHG cap and trade programs. More stringent regulations and laws relating to GHGs and climate change may be adopted in the future and could reduce the demand for our services and products. Reductions in our revenues or increases in our expenses as a result of climate control initiatives could have adverse effects on our business, financial position, results of operations and prospects.

Increased regulation of hydraulic fracturing could result in reductions or delays in drilling and completing new oil and natural gas wells, which could adversely impact our revenues by decreasing the demand for our data libraries and seismic acquisition services.

Hydraulic fracturing is a process used by oil and gas exploration and production operators in the completion of certain oil and gas wells, particularly in low permeability formations such as shales. The process involves the injection of water, sand, other proppants and chemicals under pressure into the target reservoir to stimulate hydrocarbon production. Our business is highly dependent on the level of activity by our oil and gas exploration and production customers, and hydrocarbons cannot be economically produced from certain reservoirs without extensive hydraulic fracturing.

27

Due to public concerns about environmental impact that hydraulic fracturing may have, including potential impairment of groundwater quality, legislative and regulatory efforts at the federal, state, and local levels have been initiated to impose more stringent permitting and compliance obligations on these operations. Hydraulic fracturing typically is regulated by state oil and natural gas commissions, but the EPA has asserted federal regulatory authority under the Safe Drinking Water Act over certain hydraulic fracturing activities. In addition, legislation has been introduced before Congress to provide for federal regulation of hydraulic fracturing under the Safe Drinking Water Act and to require disclosure of the chemicals used in the hydraulic fracturing process. In addition, some states have implemented, and several states are considering implementing, new regulations pertaining to hydraulic fracturing, including the disclosure of chemicals used in fracturing operations. A number of state and local governments have also adopted or are considering adopting additional requirements relating to hydraulic fracturing. In certain areas of the country, new drilling permits for hydraulic fracturing have been put on hold pending the completion of studies and development of additional standards.

Further governmental reviews are underway or being proposed that focus on environmental aspects of hydraulic fracturing practices. The White House Council on Environmental Quality is coordinating an administration-wide review of hydraulic fracturing practices, and a committee of the U.S. House of Representatives has conducted an investigation of hydraulic fracturing practices. The EPA has commenced a study of the potential environmental effects of hydraulic fracturing on drinking water and groundwater, with final results expected to be released in late 2014. Moreover, the EPA is developing effluent limitations for the treatment and discharge of wastewater resulting from hydraulic fracturing activities and plans to propose these standards by 2014. Other governmental agencies, including the U.S. Department of Energy and the U.S. Department of the Interior, are evaluating various other aspects of hydraulic fracturing. These ongoing or proposed studies, depending on their degree of pursuit and any meaningful results obtained, could spur initiatives to further regulate hydraulic fracturing under the federal Safe Drinking Water Act or other regulatory mechanisms.

The adoption of legislation or regulations placing significant restrictions on hydraulic fracturing activities could impose operational delays and increased operating costs on our customers, making it more difficult and costly for them to complete natural gas and oil wells. In the event such requirements are enacted, demand for our shale data libraries and seismic data acquisition services and products may be adversely affected.

We have outsourcing arrangements with third parties to manufacture some of our products. If these third party suppliers fail to deliver quality products or components at reasonable prices on a timely basis, we may alienate some of our customers and our revenues, profitability, and cash flow may decline. Additionally, current global economic conditions could have a negative impact on our suppliers, causing a disruption in our vendor supplies. A disruption in vendor supplies may adversely affect our results of operations.

Our manufacturing processes require a high volume of quality components. We have increased our use of contract manufacturers as an alternative to our own manufacturing of products. We have outsourced the manufacturing of our towed marine streamers, our redeployable ocean bottom cables, MEMS components, and various components of VectorSeis Ocean. Certain components used by us are currently provided by only one supplier. If, in implementing any outsource initiative, we are unable to identify contract manufacturers willing to contract with us on competitive terms and to devote adequate resources to fulfill their obligations to us or if we do not properly manage these relationships, our existing customer relationships may suffer. In addition, by undertaking these activities, we run the risk that the reputation and competitiveness of our services and products may deteriorate as a result of the reduction of our control over quality and delivery schedules. We also may experience supply interruptions, cost escalations, and competitive disadvantages if our contract manufacturers fail to develop, implement, or maintain manufacturing methods appropriate for our products and customers.

Reliance on certain suppliers, as well as industry supply conditions, generally involves several risks, including the possibility of a shortage or a lack of availability of key components, increases in component costs and reduced control over delivery schedules. If any of these risks are realized, our revenues, profitability, and cash flows may decline. In addition, as we come to rely more heavily on contract manufacturers, we may have fewer personnel resources with expertise to manage problems that may arise from these third-party arrangements.

Additionally, our suppliers could be negatively impacted by current global economic conditions. If certain of our suppliers were to experience significant cash flow issues or become insolvent as a result of such conditions, it could result in a reduction or interruption in supplies to us or a significant increase in the price of such supplies and adversely impact our results of operations and cash flows.

Under some of our outsourcing arrangements, our manufacturing outsourcers purchase agreed-upon inventory levels to meet our forecasted demand. Our manufacturing plans and inventory levels are generally based on sales forecasts. If demand proves to be less than we originally forecasted and we cancel our committed purchase orders, our outsourcers generally will have the right to require us to purchase inventory which they had purchased on our behalf. Should we be required to purchase inventory under these terms, we may be required to hold inventory that we may never utilize.

28

Our certificate of incorporation and bylaws, Delaware law, the terms of our Series D Preferred Stock and certain contractual obligations under our agreement with BGP contain provisions that could discourage another company from acquiring us.

Provisions of our certificate of incorporation and bylaws, Delaware law, the terms of our Series D Preferred Stock and our investor rights agreement with BGP may have the effect of discouraging, delaying or preventing a merger or acquisition that our stockholders may consider favorable, including transactions in which you might otherwise receive a premium for shares of our common stock. These provisions include:

• authorizing the issuance of “blank check” preferred stock without any need for action by stockholders;

• providing for a classified board of directors with staggered terms;

• requiring supermajority stockholder voting to effect certain amendments to our certificate of incorporation and bylaws;

• eliminating the ability of stockholders to call special meetings of stockholders;

• prohibiting stockholder action by written consent;

• establishing advance notice requirements for nominations for election to the board of directors or for proposing matters that can be acted on by stockholders at stockholder meetings; and

• requiring an acquiring party to assume all of our obligations under our agreement regarding our Series D Preferred Stock and the terms of the Series D Preferred Stock set forth in our certificates of rights and designations for those series, including the dividend, liquidation, conversion, voting and share registration provisions.

In addition, the terms of our INOVA Geophysical joint venture with BGP and BGP’s investment in our company contain a number of provisions, such as certain pre-emptive rights granted to BGP with respect to certain future issuances of our stock, that could have the effect of discouraging, delaying or preventing a merger or acquisition of our company that our stockholders may otherwise consider to be favorable.

Failure to maintain effective internal controls in accordance with Section 404 of the Sarbanes-Oxley Act could have a material adverse effect on our stock price.

If, in the future, we fail to maintain the adequacy of our internal controls, as such standards are modified, supplemented or amended from time to time, we may not be able to ensure that we can conclude on an ongoing basis that we have effective internal controls over financial reporting in accordance with Section 404 of the Sarbanes-Oxley Act. Failure to achieve and maintain an effective internal control environment could have a material adverse effect on the price of our common stock.

Note:    The foregoing factors pursuant to the Private Securities Litigation Reform Act of 1995 should not be construed as exhaustive. In addition to the foregoing, we wish to refer readers to other factors discussed elsewhere in this report as well as other filings and reports with the SEC for a further discussion of risks and uncertainties that could cause actual results to differ materially from those contained in forward-looking statements. We undertake no obligation to publicly release the result of any revisions to any such forward-looking statements, which may be made to reflect the events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Item 1B.    Unresolved Staff Comments

None.

29

Item 2.    Properties

Our principal operating facilities at December 31, 2012 were as follows:

Operating Facilities	Square Footage	Segment
Houston, Texas	185,000	Global Headquarters and Solutions
Harahan, Louisiana	92,000	Systems
Lacombe, Louisiana	87,000	Systems
Stafford, Texas	41,000	Systems
St. Rose, Louisiana	38,000	Systems
Denver, Colorado	27,000	Solutions
Voorschoten, The Netherlands	27,000	Systems
Edinburgh, Scotland	16,000	Software
Calgary, Canada	4,000	Solutions
Jebel Ali, Dubai, United Arab Emirates	2,000	International Sales Headquarters
	519,000

Each of these operating facilities is leased by us under long-term lease agreements. These lease agreements have terms that expire ranging from 2013 to 2025. See Note 18 of Notes to Consolidated Financial Statements.

In addition, we lease offices in Cranleigh, England; Aberdeen, Scotland; Beijing, China; and Moscow, Russia to support our global sales force. We also lease offices for our seismic data processing centers in Egham, England; Port Harcourt, Nigeria; Luanda, Angola; Moscow, Russia; Cairo, Egypt; Villahermosa, Mexico; Rio de Janeiro, Brazil; Port of Spain, Trinidad; and Oklahoma City, Oklahoma. Our executive headquarters (utilizing approximately 23,100 square feet) is located at 2105 CityWest Boulevard, Suite 400, Houston, Texas. The machinery, equipment, buildings, and other facilities owned and leased by us are considered by our management to be sufficiently maintained and adequate for our current operations.

Item 3.    Legal Proceedings

WesternGeco

In June 2009, WesternGeco L.L.C. (“WesternGeco”) filed a lawsuit against us in the United States District Court for the Southern District of Texas, Houston Division. In the lawsuit, styled WesternGeco L.L.C. v. ION Geophysical Corporation, WesternGeco alleged that we infringed several method and apparatus claims contained in four of its United States patents regarding marine seismic streamer steering devices. WesternGeco sought unspecified monetary damages and an injunction prohibiting us from making, using, selling, offering for sale or supplying any infringing products in the United States.

In June 2009, we filed an answer and counterclaims against WesternGeco, in which we denied that we had infringed WesternGeco’s patents and asserted that the WesternGeco patents were invalid or unenforceable. We also asserted that WesternGeco’s Q-Marine system, components and technology infringed upon our United States patent related to marine seismic streamer steering devices. In addition, we claimed that the lawsuit by WesternGeco was an illegal attempt by WesternGeco to control and restrict competition in the market for marine seismic surveys performed using laterally steerable streamers. In our counterclaims, we requested various remedies and relief, including a declaration that the WesternGeco patents were invalid or unenforceable, an injunction prohibiting WesternGeco from making, using, selling, offering for sale or supplying any infringing products in the United States, a declaration that the WesternGeco patents should be co-owned by us, and an award of unspecified monetary damages.

In June 2010, WesternGeco filed a lawsuit against various subsidiaries and affiliates of Fugro N.V. (“Fugro”), one of our seismic contractor customers, accusing Fugro of infringing the same United States patents regarding marine seismic streamer steering devices by planning to use certain equipment purchased from us on a survey located outside of U.S. territorial waters. The court approved the consolidation of the Fugro case with our case. Fugro filed a motion to dismiss the lawsuit, and in March 2011 the presiding judge granted Fugro’s motion to dismiss in part, on the basis that the alleged activities of Fugro would occur more than 12 miles from the U.S. coast and therefore are not actionable under U.S. patent infringement law.

In February 2012, the Court granted WesternGeco’s motions for summary judgment, dismissing our claims as plaintiff against WesternGeco for infringement, inventorship and inequitable conduct. In response to a Motion for Summary Judgment filed jointly by us and Fugro, the Court ruled in April 2012 that we did not directly infringe WesternGeco’s method patent claims. In a pre-trial ruling on June 29, 2012, the Court ruled that, if a particular patent claim of WesternGeco was held to be valid and enforceable at the upcoming trial, our DigiFIN lateral streamer control system, when combined with our lateral controller in the United States, would infringe one claim in one of WesternGeco’s asserted patents, U.S. Patent No. 7,293,520.

30

Trial began on July 23, 2012. During the trial, Fugro settled all claims asserted against it by WesternGeco and obtained a global license from WesternGeco. A verdict was returned by the jury on August 16, 2012, finding that we willfully infringed the claims contained in the four patents and awarding WesternGeco the sum of $105.9 million in damages, consisting of $12.5 million in reasonable royalty and $93.4 million in lost profits. We believe that the verdict is not consistent with applicable law or the facts or evidence in the case and, in September 2012, filed motions with the trial court to overturn all or portions of the verdict.

The ultimate outcome of the case in the trial court, and the content of the final judgment as a whole, rest with the presiding trial court judge, not the jury. The next step in the case is for the trial court judge to decide post-verdict motions filed by the parties and enter a judgment. The final judgment will determine the result of the trial prior to appeal. When he enters a judgment in the case, the judge can choose to follow the jury verdict or to take other actions, such as changing to a different result or ordering an entirely new trial. As of the filing date of this Annual Report on Form 10-K, the Court had not yet entered a judgment in the case.

If the Court enters a judgment that is adverse to us, we intend to appeal the judgment to the United States Court of Appeals for the Federal Circuit. WesternGeco would also have the right to elect to appeal any final judgment.

In rendering its verdict, the jury determined that our infringement was willful. Because the jury verdict indicated willfulness, the trial court judge will determine whether, in his independent judgment, we willfully infringed and he should declare this case to be “exceptional.” In order for the judge to find willful infringement and declare this case exceptional, WesternGeco must prove, by clear and convincing evidence, that we acted with objective recklessness and in bad faith, fraudulently or engaged in similar misconduct related to the case. If the judge finds willful infringement and declares this case to be exceptional, the judge has the discretion, but not the obligation, to enhance the damages amount, not to exceed a trebling of the final judgment damages award plus reasonable attorneys’ fees. We believe that, given our understanding and judgment of applicable law and the relevant facts and evidence in this case, and after considering the advice of counsel, it is unlikely that we will incur any additional loss as a result of the jury’s finding of willfulness.

Based on our understanding and judgment of relevant law and the facts and merits of this case, including appellate defenses, and after considering the advice of counsel, we have determined it is probable that, after exhaustion of all appeals, this lawsuit will result in a loss contingency to us in the amount of approximately $10 million, consisting of reasonable royalty damages, interest and court costs. We have adequately reserved for this loss contingency.

It is reasonably possible that we may not ultimately prevail in the litigation and appeals process and that our loss related to the lawsuit could exceed the amount currently accrued, up to the amount of the damages in the jury verdict plus interest and court costs, or even higher if the Court decides to enhance the damages as described above. However, we do not believe that a loss of this magnitude is probable. Our assessment of our potential loss contingency may change in the future due to developments at the trial court or appellate court and other events, such as changes in applicable law, and such re-assessment could lead to the determination that no loss contingency is probable or that a greater loss contingency is probable, which could have a material effect on our financial condition or results of operations.

As stated above, we intend to appeal the judgment to the United States Court of Appeals for the Federal Circuit if the trial court enters a judgment adverse to us. In order to appeal the judgment, we may be required to post an appeal bond for the full amount of damages entered in the judgment. In order to post and collateralize a bond of that size, we might need to utilize a combination of cash on hand, undrawn balances available under the revolving line of credit and possibly incur additional debt and/or equity financing. The posting and collateralization of such an appeal bond could have a possible adverse effect on our liquidity. If we are unable to post the appeal bond, we may be unable to stay enforcement of the judgment or appeal the case. At this time, we are unable to determine whether an appeal bond would be required or the amount of such an appeal bond. Similarly, we are unable to predict the timing of the final judgment being entered by the trial court or the timing of posting any required appeal bond.

Fletcher

In November 2009, Fletcher International Ltd. (“Fletcher”), the holder of the shares of our outstanding Series D Preferred Stock until June 2012, filed a lawsuit against us and certain of our directors in the Delaware Court of Chancery. In the lawsuit, styled Fletcher International, Ltd. v. ION Geophysical Corporation, et al, Fletcher alleged, among other things, that we violated Fletcher’s consent rights contained in the Series D Preferred Stock Certificates of Designation, by (a) the execution and delivery of a convertible promissory note to the Bank of China, New York Branch by one of our subsidiaries (incorporated in Luxembourg), in connection with a bridge loan funded in October 2009 by Bank of China, and (b) a Canadian subsidiary of ours executing and delivering several promissory notes in 2008 in connection with our acquisition of ARAM Systems Ltd. Fletcher also alleged that our directors violated their fiduciary duties by allowing the subsidiaries to deliver the notes without Fletcher’s consent. In a Memorandum Opinion issued in May 2010 in response to a motion for partial summary judgment, the judge dismissed all of Fletcher’s claims against our named directors but also concluded that, because the bridge loan note executed by our Luxembourg subsidiary in 2009 was convertible into our common stock, Fletcher had the right to consent to

31

the issuance of the note and that we had violated Fletcher’s consent rights by that subsidiary’s issuing the note without Fletcher’s consent. In March 2011, the judge dismissed certain additional claims asserted by Fletcher.

In May 2012, the judge ruled that Fletcher did not have the right to consent with respect to two promissory notes executed and delivered by the Canadian subsidiary in September 2008 in connection with our purchase of ARAM Systems Ltd., but that Fletcher did have the right to consent to the execution and delivery in December 2008 of a replacement promissory note in the principal amount of $35 million, and that we had violated Fletcher’s consent right by the subsidiary’s executing and delivering the replacement promissory note without Fletcher’s consent.

In June 2012, Fletcher filed a voluntary petition for relief under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of New York. Fletcher’s shares of Series D Preferred Stock, which had been pledged by Fletcher to secure certain indebtedness, were sold by the pledgee to the affiliate of D.E. Shaw & Co., Inc. in June 2012. We do not believe that the acquisition of the shares by an affiliate of D. E. Shaw & Co., Inc. or the bankruptcy filing by Fletcher will have a material impact on Fletcher’s lawsuit against us.

We believe that the monetary damages suffered by Fletcher as a result of our subsidiaries executing and delivering the convertible note and the replacement note without Fletcher’s consent are nonexistent or nominal, and that the ultimate outcome of the lawsuit will not result in a material adverse effect on our financial condition or results of operations.

Sercel

In January 2010, the jury in a patent infringement lawsuit filed by us against seismic equipment provider Sercel, Inc. in the United States District Court for the Eastern District of Texas returned a verdict in our favor. In the lawsuit, styled Input/Output, Inc. et al v. Sercel, Inc., (5-06-cv-00236), we alleged that Sercel’s 408, 428 and SeaRay digital seismic sensor units infringe our United States Patent No. 5,852,242, which is incorporated in our VectorSeis sensor technology. Products of our company or INOVA Geophysical that are compatible with the VectorSeis technology include Scorpion, ARIES II, FireFly, Hawk and VectorSeis Ocean seismic acquisition systems. The jury concluded that Sercel infringed our patent and that our patent was valid, and the jury awarded us $25.2 million in compensatory past damages. In response to post-verdict motions made by the parties, in September 2010, the presiding judge issued a series of rulings that (a) granted our motion for a permanent injunction to be issued prohibiting the manufacture, use or sale of the infringing Sercel products, (b) confirmed that our patent was valid, (c) confirmed that the jury’s finding of infringement was supported by the evidence and (d) disallowed $5.4 million of lost profits that were based on infringing products that were manufactured and delivered by Sercel outside of the United States, but were offered for sale by Sercel in the United States and involved underlying orders and payments received by Sercel in the United States. In addition, the judge concluded that the evidence supporting the jury’s finding that we were entitled to be awarded $9.0 million in lost profits associated with certain infringing pre-verdict marine sales by Sercel was too speculative and therefore disallowed that award of lost profits. As a result of the judge’s ruling, we were entitled to be awarded an additional amount of damages equal to a reasonable royalty on the infringing pre-verdict Sercel marine sales. After we learned that Sercel continued to make sales of infringing products after the January 2010 jury verdict was rendered, we filed motions with the court to seek additional compensatory damages for the post-verdict infringing sales and enhanced damages as a result of the willful nature of Sercel’s post-verdict infringement. In February 2011, the Court entered a final judgment and permanent injunction in the case. The final judgment awarded us $10.7 million in damages, plus interest, and the permanent injunction prohibits Sercel and parties acting in concert with Sercel from making, using, offering to sell, selling, or importing in the United States (which includes territorial waters of the United States) Sercel’s 408UL, 428XL and SeaRay digital sensor units, and all other products that are only colorably different from those products. Each of the parties appealed portions of the final judgment, and on February 17, 2012, the appellate court upheld the final judgment. In April 2012, Sercel paid us $12.0 million pursuant to the final judgment.

In its judgment, the Court also ordered that the additional damages to be paid by Sercel as a reasonable royalty on the infringing pre-verdict Sercel marine sales and the additional damages to be paid by Sercel resulting from post-verdict infringing sales would be determined in a separate proceeding to be conducted in the future. In December 2012, we and Sercel settled all remaining claims in exchange for $19.0 million and an agreement by Sercel to pay us royalties on future sales.

Other Litigation

We have been named in various other lawsuits or threatened actions that are incidental to our ordinary business. Litigation is inherently unpredictable. Any claims against us, whether meritorious or not, could be time-consuming, cause us to incur costs and expenses, require significant amounts of management time and result in the diversion of significant operational resources. The results of these lawsuits and actions cannot be predicted with certainty. We currently believe that the ultimate resolution of these matters will not have a material adverse effect on our financial condition or results of operations.

Item 4.    Mine Safety Disclosures

Not applicable.

32

PART II

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

Our common stock trades on the New York Stock Exchange (“NYSE”) under the symbol “IO.” The following table sets forth the high and low sales prices of the common stock for the periods indicated, as reported in NYSE composite tape transactions.

	Price Range
Period	High		Low
Year ended December 31, 2012:
Fourth Quarter	$	7.32	$	5.52
Third Quarter	7.87		6.17
Second Quarter	7.74		5.29
First Quarter	8.79		6.09
Year ended December 31, 2011:
Fourth Quarter	$	8.24	$	4.20
Third Quarter	11.16		4.57
Second Quarter	13.92		8.07
First Quarter	13.20		7.77

We have not historically paid, and do not intend to pay in the foreseeable future, cash dividends on our common stock. We presently intend to retain cash from operations for use in our business, with any future decision to pay cash dividends on our common stock dependent upon our growth, profitability, financial condition and other factors our board of directors consider relevant. In addition, the terms of our credit facility prohibit us from paying dividends on or repurchasing shares of our common stock without the prior consent of the lenders.

The terms of our credit facility also contain covenants that restrict us, subject to certain exceptions, from (i) paying cash dividends on our common stock and (ii) repurchasing and acquiring shares of our common stock unless there is no event of default under our credit agreement and the amount of such repurchases in any year does not exceed an amount equal to (A) 25% of our consolidated net income for the prior fiscal year, less (B) the amount of any permitted cash dividends paid on our common stock during such year.

On December 31, 2012, there were 804 holders of record of our common stock.

During the three months ended December 31, 2012, we withheld and subsequently canceled shares of our common stock to satisfy minimum statutory income tax withholding obligations on the vesting of restricted stock for employees. The date of cancellation, number of shares and average effective acquisition price per share, were as follows:

Period	(a) Total Number  of Shares Acquired	(b) Average Price Paid Per Share		(c) Total Number  of Shares Purchased as Part of Publicly Announced Plans or Program	(d) Maximum Number (or Approximate Dollar Value) of Shares That May Yet Be Purchased Under the Plans or Program
October 1, 2012 to October 31, 2012	—	$	—	Not applicable	Not applicable
November 1, 2012 to November 30, 2012	—	$	—	Not applicable	Not applicable
December 1, 2012 to December 31, 2012	81,622	$	5.97	Not applicable	Not applicable
Total	81,622	$	5.97

Item 6.    Selected Financial Data

The selected consolidated financial data set forth below with respect to our consolidated statements of operations for 2012, 2011, 2010, 2009 and 2008, and with respect to our consolidated balance sheets at December 31, 2012, 2011, 2010, 2009 and 2008 have been derived from our audited consolidated financial statements.

Our results of operations and financial condition have been affected by legal settlements, dispositions, debt refinancings and impairments of assets during the periods presented, which affect the comparability of the financial information shown. In particular, our results of operations for the years in the 2008 – 2012 time period were impacted by the following items (before tax):

33

	Years Ended December 31,
	2012		2011			2010			2009			2008
	(In thousands)
Operating expenses:
Impairment of goodwill and intangible assets	$	—	$	—		$	—		$	(38,044	)	$	(252,283	)
Interest expense:
Write-down of deferred financing charges, including amortization of non-cash debt discounts	—		—			(18,777		)	(6,732		)	—
Other income (expense):
Gain on legal settlements, net	20,895		—			24,500			—			—
Equity in earnings (losses) of INOVA Geophysical	297		(22,862		)	(23,724		)	—			—
Loss on disposition of land equipment division	—		—			(38,115		)	—			—
Fair value adjustments of a warrant associated with certain bridge financing arrangements	—		—			12,788			(29,401		)	—
Beneficial conversion charge associated with our outstanding convertible preferred stock	—		—			—			—			(68,786		)

This information should not be considered as being indicative of future operations, and should be read in conjunction with Item 7. “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated financial statements and the notes thereto included elsewhere in this Form 10-K.

	Years Ended December 31,
	2012		2011		2010			2009			2008
	(In thousands, except for per share data)
Statement of Operations Data:
Net revenues	$	526,317	$	454,621	$	444,322		$	419,781		$	679,523
Gross profit	215,801		173,445		165,733			132,138			207,748
Income (loss) from operations	74,527		66,795		52,847			(58,216		)	(212,823		)
Net income (loss) applicable to common shares	61,963		23,422		(38,774		)	(113,559		)	(293,713		)
Net income (loss) per basic share	$	0.40	$	0.15	$	(0.27	)	$	(1.03	)	$	(3.06	)
Net income (loss) per diluted share	$	0.39	$	0.15	$	(0.27	)	$	(1.03	)	$	(3.06	)
Balance Sheet Data (end of year):
Working capital¹	$	164,693	$	163,677	$	171,851		$	(59,018	)	$	267,155
Total assets	820,583		674,058		631,857			748,186			861,431
Notes payable and long-term debt	105,328		105,112		108,660			277,381			291,909
Total equity	499,019		425,812		380,447			282,468			325,070
Other Data:
Investment in multi-client library	$	145,627	$	143,782	$	64,426		$	89,635		$	110,362
Capital expenditures	14,877		11,060		7,372			2,966			17,539
Depreciation and amortization (other than multi-client library)	16,202		13,917		24,795			47,911			33,052
Amortization of multi-client library	89,080		77,317		85,940			48,449			80,532

¹ The negative working capital position as of December 31, 2009 shown above was the result of the re-classification of the majority of our then outstanding long-term debt as current and as a result of the fair value of a warrant associated with our prior bridge financing arrangements.

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

Note: The following should be read in conjunction with our Consolidated Financial Statements and related Notes to Consolidated Financial Statements that appear elsewhere in this Annual Report on Form 10-K. References to “Notes” in the discussion below refer to the numbered Notes to Consolidated Financial Statements.

34

Executive Summary

Our Business

We are a technology-focused seismic solutions company that provides planning and seismic processing services, software and advanced acquisition equipment to the global energy industry. Our services, technologies and products are used by oil and gas exploration and production (“E&P”) companies and seismic acquisition contractors to generate high-resolution images of the Earth’s subsurface during exploration, exploitation, and production operations. Our services and products are intended to measure and interpret seismic data about rock and fluid properties within the Earth’s subsurface to enable oil and gas companies to make improved drilling and production decisions.

We acquire and process seismic data from seismic surveys in regional data programs, which then become part of our seismic data library. The seismic surveys for our data library business are pre-funded, or underwritten, in part by our customers, and we contract with third party seismic data acquisition companies to shoot and acquire the seismic data, all of which is intended to minimize our risk exposure. We serve customers in all major energy-producing regions of the world from strategically located offices in 20 cities on five continents.

In 2010, we formed a joint venture with BGP, Inc., China National Petroleum Corporation (“BGP”), a subsidiary of China National Petroleum Corporation, and contributed most of our land seismic equipment businesses to INOVA Geophysical Equipment Limited (“INOVA Geophysical”), the joint venture entity. In a related transaction, we issued to BGP 23.8 million shares of our common stock, which represents approximately 15.2% of our outstanding shares at December 31, 2012. BGP is generally regarded as the world’s largest land geophysical service contractor. BGP owns a 51% interest in INOVA Geophysical and we own a 49% interest.

Our services and products include the following:

• Seismic data processing and reservoir imaging services,

• Seismic data libraries,

• Planning services for survey design and optimization,

• Navigation, command & control, and data management software products,

• Marine seismic data acquisition equipment, and

• Land seismic data acquisition equipment (principally through our 49% ownership in INOVA Geophysical).

We operate our company through three business segments: Solutions, Systems, and Software, and through our INOVA Geophysical joint venture.

• Solutions — advanced seismic data processing services for marine and land environments, reservoir solutions, onboard processing and quality control, seismic data libraries, and services by our GeoVentures services group.

• Systems — towed streamer and redeployable ocean bottom cable seismic data acquisition systems and shipboard recorders, streamer positioning and control systems, energy sources and analog geophone sensors.

• Software — software systems and related services for navigation and data management involving towed marine streamer and seabed operations.

• INOVA Geophysical — through our interest in INOVA Geophysical, cable-based, cableless and radio-controlled seismic data acquisition systems, digital sensors, vibroseis vehicles (i.e. vibrator trucks) and source controllers for detonator and energy sources business lines.

Economic Conditions

Demand for our seismic data acquisition services and products has traditionally been cyclical and substantially dependent upon activity levels in the oil and gas industry, particularly our customers' willingness and ability to expend their capital for oil and natural gas exploration and development projects. This demand is sensitive to current and expected future crude oil and natural gas prices. During 2012, WTI spot crude oil prices rose to approximately $110 per barrel in the first quarter, declined to just below $80 per barrel near the end of the second quarter, and then steadily increased to nearly $100 per barrel near the end of the third quarter. During the fourth quarter of 2012, WTI spot crude oil prices traded in a narrower range of $85 to $93 per barrel; finishing the year near $90 per barrel. Brent crude oil prices followed a similar pattern to WTI, initially rising to approximately $126 per barrel in the first quarter, followed by a steady decline to $90 per barrel by the end of the second quarter, then steadily rising to approximately $116 per barrel late in the third quarter; it traded in a narrower range during 2012's fourth quarter of $106 to $114 per barrel, finishing the year near $110 per barrel.

35

Energy price forecasts are by their nature highly uncertain, but external reports indicate that WTI crude oil prices and Brent crude oil prices are expected to remain in price ranges of $80 to $110 and $100 to $130 per barrel, respectively, for 2013 as demand outpaces supply.

U.S. natural gas prices appeared to reverse their downward trend in 2012. U.S. Henry Hub natural gas prices decreased to approximately $1.90 per MMBtu in April 2012, but during the third quarter, natural gas prices traded in a range from $2.65 to $3.40 per MMBtu, and during the fourth quarter in a higher range of $3.30 to $4.00. While it may be too early to tell if this change in price direction is in fact a trend reversal, demand for natural gas has not deteriorated. We believe demand for natural gas will continue to grow and that industry investment in shale-based gas production will increase and be facilitated by new investment in technologies to locate and extract the reserves.

For 2012, our Solutions segment revenues increased over 2011 results, due to improved data processing revenues and higher sales by our GeoVentures business. During 2012, our participation in oil and gas shale plays continued to expand, with the completion of our second land multi-client new venture project in the Marcellus shale area, and with four other projects underway, including a land project in Poland. In the process, we are increasing our technical understanding of both oil and gas shale plays and we intend to leverage this expertise to broaden our oil and gas shale footprint geographically in both the U.S. and international markets. In addition, customer demand remains high for seismic data acquired by our GeoVentures business in offshore areas around the globe where E&P companies have demonstrated a strong interest for exploration, including frontier basins offshore Latin America, Africa, and in the Arctic, as well as ResSCAN land programs in North America. At December 31, 2012, our Solutions segment backlog, which consists of commitments for (i) data processing work and (ii) both multi-client new venture and proprietary projects by our GeoVentures group that have been underwritten, was $151.3 million compared with $134.2 million at December 31, 2011, an increase of 13%. We anticipate that the majority of this backlog will be recognized as revenue over the first half of 2013.

Revenues for our Systems segment decreased in 2012 compared to 2011. While this segment benefited from healthy marine repair and replacement sales and improved ocean bottom cable sales, we experienced soft streamer positioning sales in 2012, primarily attributable to modest capital spending by our contractor customers. This reduced level of spending was principally related to a lower number of new vessels (on which our Systems equipment and software are often installed) introduced in 2012, compared to the number of new vessels introduced in 2011. In 2011, we also recognized revenue from the sale to BGP of a DigiSTREAMER twelve-streamer system; there was no similar sale of that magnitude in 2012. In January 2013, CGGVeritas closed its acquisition of Fugro’s geoscience division, further consolidating the marine towed streamer industry market segment, which could lead to a reduction in the number of our potential customers and vessel outfitting opportunities. Our Software segment revenues increased in 2012 compared to 2011 due to steady subscription sales of Orca and Gator software.

Our land seismic business, particularly INOVA Geophysical’s business in North America and Russia, continues to show progress, reporting a sizable increase in revenues and gross profits for the twelve-month period from October 1, 2011 to September 30, 2012, compared to the twelve-month period ended September 30, 2011. With the recent launches of its lower-cost cableless Hawk land system, an improved FireFly system (“FireFly DR31”) and a new cabled system (G3i), INOVA has positive momentum heading into the next twelve-month period.

It is our view that technologies that add a competitive advantage through improved imaging, cost reductions or improvements in well productivity will continue to be valued in our marketplace. We believe that our newest technologies such as DigiFIN, DigiSTREAMER, Orca, our WiBand data processing technology and INOVA Geophysical’s newest technologies (including FireFly DR31, Hawk SN11, UNIVIB, a new VectorSeis ML21 digital sensor, upgrades to its ARIES II product with digital sensor capabilities and its new G3i cabled system), will continue to attract customer interest, because those technologies are designed to deliver improvements in image quality within more productive delivery systems.

We expect the growth in demand for seismic services to continue to remain positive for the foreseeable future, and we remain positioned to achieve year-over-year improvement in both our revenue and profitability for 2013 as compared to 2012. However, in stating these expectations, we are assuming that (i) the global and U.S. economies will not slip back into a recession, (ii) the prices of WTI and Brent crude oil will remain predominantly above $80 and $100 per barrel, respectively, (iii) the level of exploration and development activities in the US Gulf of Mexico will continue to increase, and (iv) there will be increasing demand for seismic services in the Middle East and North Africa resulting from improved geopolitical stability in those areas.

WesternGeco Legal Proceedings

The trial in this lawsuit began on July 23, 2012. A verdict was returned by the jury on August 16, 2012, finding that we willfully infringed the claims contained in four patents and awarding WesternGeco the sum of $105.9 million in damages, consisting of $12.5 million in reasonable royalty and $93.4 million in lost profits. We believe that the verdict is not consistent with applicable law or the facts or evidence in the case and, on September 28, 2012, filed motions with the trial court to overturn all or portions of the verdict. See further discussion at Part I, Item 3. – “Legal Proceedings.”

36

The ultimate outcome of the case in the trial court, and the content of the final judgment as a whole, presently rest with the presiding trial court judge. The next step in the case is for the trial court judge to decide post-verdict motions filed by the parties and enter a judgment. The final judgment will determine the result of the trial prior to appeal. When he enters a judgment in the case, the judge can choose to follow the jury verdict or to take other actions, such as changing to a different result or ordering an entirely new trial. As of the filing date of this Annual Report on Form 10-K, the Court had not yet entered a judgment in the case. If the Court enters a judgment that is adverse to us, we intend to appeal the judgment to the United States Court of Appeals for the Federal Circuit. WesternGeco would also have the right to elect to appeal any final judgment.

Key Financial Metrics

The following table provides an overview of key financial metrics for our company as a whole and our three business segments during 2012, 2011 and 2010. In order to assist with the comparability to our historical results of operations, the financial tables and discussion below for 2010, segregate the results of operations of our disposed legacy land seismic equipment segment (which we refer to below as our “Legacy Land Systems” segment). For tabular information on the operating results of our INOVA Geophysical joint venture, see “Equity in Earnings (Losses) of INOVA Geophysical” in the discussion below.

Our “multi-client” business in our Solutions segment includes “New Venture” activities and our “Data Library.” “New Venture” activities involve acquiring and processing data in our regional seismic data programs using advanced geophysical technology. Once the data is processed, the program moves into our Data Library category.

	Years Ended December 31,
	2012			2011			2010
	(in thousands, except per share amounts)
Net revenues:
Solutions:
New Venture	$	147,346		$	98,335		$	81,293
Data Library	88,085			76,332			87,664
Total multi-client revenues	235,431			174,667			168,957
Data Processing	115,834			88,783			107,997
Total	$	351,265		$	263,450		$	276,954
Systems:
Towed Streamer	$	77,769		$	111,453		$	83,567
Ocean bottom	14,823			960			1,876
Other	39,404			40,591			28,783
Total	$	131,996		$	153,004		$	114,226
Software:
Software Systems	$	39,738		$	36,031		$	34,465
Services	3,318			2,136			2,166
Total	$	43,056		$	38,167		$	36,631
Legacy Land Systems (INOVA)	$	—		$	—		$	16,511
Total	$	526,317		$	454,621		$	444,322
Gross profit:
Solutions	$	132,950		$	84,647		$	93,804
Systems	50,790			61,109			48,557
Software	32,061			27,689			24,356
Legacy Land Systems (INOVA)	—			—			(984		)
Total	$	215,801		$	173,445		$	165,733
Gross margin:
Solutions	38		%	32		%	34		%
Systems	38		%	40		%	43		%
Software	74		%	73		%	66		%
Legacy Land Systems (INOVA)	—			—			(6		)%
Total	41		%	38		%	37		%

37

	Years Ended December 31,
	2012			2011			2010
	(in thousands, except per share amounts)
Income from operations:
Solutions	$	88,589		$	50,620		$	60,632
Systems	10,132			33,034			27,749
Software	28,129			24,463			21,936
Corporate and other	(52,323		)	(41,322		)	(47,847		)
Legacy Land Systems (INOVA)	—			—			(9,623		)
Total	$	74,527		$	66,795		$	52,847
Operating Margin:
Solutions	25		%	19		%	22		%
Systems	8		%	22		%	24		%
Software	65		%	64		%	60		%
Corporate and other	(10		)%	(9		)%	(11		)%
Legacy Land Systems (INOVA)	—			—			(58		)%
Total	14		%	15		%	12		%
Net income (loss) applicable to common shares	$	61,963		$	23,422		$	(38,774	)
Basic net income (loss) per common share	$	0.40		$	0.15		$	(0.27	)
Diluted net income per (loss) common share	$	0.39		$	0.15		$	(0.27	)

We intend that the following discussion of our financial condition and results of operations will provide information that will assist in understanding our consolidated financial statements, the changes in certain key items in those financial statements from year to year, and the primary factors that accounted for those changes.

We account for our 49% interest in INOVA Geophysical as an equity method investment and record our share of earnings of INOVA Geophysical on a one fiscal quarter lag basis. Thus, for 2012, 2011 and 2010, we recognized in our consolidated results of operations our share of earnings (losses) in INOVA Geophysical of approximately $0.3 million, $(22.9) million, and $(23.7) million, which represent joint venture operations for the periods from October 1, 2011 through September 30, 2012, October 1, 2010 through September 30, 2011, and March 26, 2010 (inception) through September 30, 2010, respectively.

We expect to file an amendment on Form 10-K/A to this Annual Report on Form 10-K within the six-month period following December 31, 2012 in order to file separate consolidated financial statements for INOVA Geophysical for the fiscal year ended December 31, 2012, as required under SEC Regulation S-X.

For a discussion of factors that could impact our future operating results and financial condition, see Item 1A. “Risk Factors” above.

Results of Operations

Year Ended December 31, 2012 Compared to Year Ended December 31, 2011

	Years Ended December 31,
	2012			2011
	(In thousands)
Net revenues	$	526,317		$	454,621
Cost of sales	310,516			281,176
Gross profit	215,801			173,445
Gross margin	41		%	38		%
Operating expenses:
Research, development and engineering	34,080			24,569
Marketing and sales	35,240			31,269
General, administrative and other operating expenses	71,954			50,812
Total operating expenses	141,274			106,650
Income from operations	$	74,527		$	66,795

Our total net revenues of $526.3 million for 2012increased$71.7 million, or 16%, compared to total net revenues for 2011. Our overall gross profit percentage for 2012 was 41%, compared to 2011’s gross profit percentage of 38%. Total operating expenses as a percentage of net revenues for 2012 and 2011 were 27% and 23%, respectively. During 2012, we recorded income from operations of $74.5 million compared to $66.8 million for 2011.

38

Net Revenues, Gross Profits and Gross Margins

Solutions — Net revenues for 2012increased by $87.8 million, or 33%, to $351.3 million, compared to $263.5 million for 2011. This increase was predominantly driven by improved data processing revenues due to post-Macondo recovery in the Gulf of Mexico and continued international expansion; higher GeoVentures revenue related to growth in new venture activity, including programs offshore Latin America, Africa, and in the Arctic, as well as ResSCAN land programs in North America, and growth in data library sales related to programs offshore Latin America, Africa, Australia and in the Arctic. Gross profit increased by $48.3 million to $133.0 million, representing a 38% gross margin, compared to $84.6 million, or a 32% gross margin, for 2011, primarily attributable to the recovery and expansion of our data processing business during 2012 and a more profitable mix of programs in GeoVentures.

Systems — Net revenues for 2012decreased by $21.0 million, or 14%, to $132.0 million, compared to $153.0 million for 2011. This decrease was driven primarily by lower volumes of towed marine streamer positioning equipment, and was offset by improved ocean bottom cable sales. In 2011, we recognized revenue from the sale to BGP of a DigiSTREAMER twelve-streamer system, which was not replicated in 2012. Gross profit for 2012decreased by $10.3 million to $50.8 million, representing a 38% gross margin, compared to $61.1 million, representing a 40% gross margin, for 2011. The decrease in gross margins in our Systems segment was primarily due to reduced sales of towed marine streamer positioning equipment.

Software — Net revenues for 2012increased by $4.9 million, or 13%, to $43.1 million, compared to $38.2 million for 2011. Excluding the effects of foreign currency translation, revenues increased 11% due to continued demand for the Orca and Gator software platforms. Gross profit for 2012increased by $4.4 million to $32.1 million, representing a 74% gross margin, compared to $27.7 million, for 2011, which represented a 73% gross margin. Gross profit increased in line with revenue while gross margins increased only slightly from 2011 to 2012. Gross margins remained high due to significantly higher software sales, which carry a much higher gross margin than other products and services. Software sales represented 65% of total sales in this segment for 2012 in local currency, compared to 58% of total sales in 2011.

Operating Expenses

Research, Development and Engineering — Research, development and engineering expense was $34.1 million, or 6% of net revenues, for 2012, an increase of $9.5 million compared to $24.6 million, or 5% of net revenues, for 2011. This increase in research and development expense was primarily due to increased investment of labor and technology related to product development. Related to this, our Systems and Solutions segments increased expenditures on field tests in 2012 versus 2011.

Marketing and Sales — Marketing and sales expense of $35.2 million, or 7% of net revenues, for 2012, increased$4.0 million compared to $31.3 million, or 7% of net revenues, for 2011. This increase in marketing and sales expense was primarily due to investment in our Solutions sales teams to support the continued growth in the Solutions segment.

General, Administrative and Other Operating Expenses — General, administrative and other operating expenses of $72.0 million for 2012increased$21.1 million compared to $50.8 million, for the corresponding period of 2011. General, administrative and other operating expenses as a percentage of net revenues for 2012 and 2011 were 14% and 11%, respectively. This increase in expense was primarily due to significantly higher legal fees ($9.0 million) and the write-down of marine equipment and receivables totaling $11.6 million. In 2012, we had experienced increased legal fees and expenses defending the lawsuit brought against us by WesternGeco and pursuing the lawsuit brought by us against Sercel. See further discussion at Part I, Item 3. “Legal Proceedings.”

Non-operating Items

Interest Expense, net — Interest expense, net, of $5.3 million for 2012 decreased slightly compared to $5.8 million for 2011. For additional information, please refer to “— Liquidity and Capital Resources — Sources of Capital” below.

Equity in Earnings (Losses) of INOVA Geophysical — We account for our 49% interest in INOVA Geophysical as an equity method investment and record our share of earnings and losses of INOVA Geophysical on a one fiscal quarter-lag basis. Thus, our share of INOVA Geophysical’s earnings (losses) for the periods from October 1, 2011 to September 30, 2012 (“Fiscal 2012”) and from October 1, 2010 to September 30, 2011 (“Fiscal 2011”) were included in our consolidated financial results for fiscal 2012 and fiscal 2011, respectively. For 2012 and 2011, we recorded our 49% share of equity (i) earnings of approximately $0.3 million, and (ii) losses of approximately $22.9 million (including $7.7 million that represented our share of a write-down of excess inventory), respectively.

39

The following table reflects the summarized financial information for INOVA Geophysical for Fiscal 2012 and Fiscal 2011 (in thousands):

	Fiscal 2012		Fiscal 2011
Total net revenues	$	188,336	$	138,735
Gross profit	$	39,320	$	5,765
Income (loss) from operations	$	3,241	$	(41,836	)
Net income (loss)	$	2,197	$	(46,033	)

Other Income (Expense) — Other income for 2012 was $17.1 million compared to other expense of $3.4 million for 2011. The difference primarily relates to the settlements of litigation. See further discussion at Part 1, Item 3, “Legal Proceedings.”

The following table reflects the significant items of other income (expense) is as follows (in thousands):

	Years Ended December 31,
	2012			2011
Gain on legal settlements, net	$	20,895		$	—
Write-down of investments	(556		)	(1,312		)
Other income (expense)	(3,215		)	(2,135		)
Total other income (expense)	$	17,124		$	(3,447	)

Income Tax Expense — Income tax expense for 2012 was $23.9 million compared to $10.1 million for 2011. Our effective tax rates for 2012 and 2011 were 27.5% and 29.2%, respectively. The change in our effective tax rate between 2012 and 2011 was due to a reduction in the valuation allowance on U.S. federal net deferred tax assets, partially offset by changes in the distribution of earnings between U.S. and foreign jurisdictions. We continue to maintain a valuation allowance for a portion of our U.S. federal net deferred tax assets that relate to capital losses and basis differences that will create capital losses.

Preferred Stock Dividends — The preferred stock dividend relates to our Series D Preferred Stock. Quarterly dividends must be paid in cash. Dividends are paid at a rate equal to the greater of (i) 5.0% per annum or (ii) the three month LIBOR rate on the last day of the immediately preceding calendar quarter plus 2.5% per annum. The Series D Preferred Stock dividend rate was 5.0% at December 31, 2012. The total amount of dividends paid on our preferred stock in 2012 was the same as in 2011.

Year Ended December 31, 2011 Compared to Year Ended December 31, 2010

Revenues, costs and expenses for 2010 that are identified as “adjusted” or “as adjusted” in the discussion below reflect exclusion of the revenues, costs and expenses from our disposed land equipment segment's business, or “Legacy Land Systems.”

	Year Ended December 31, 2011			Year Ended December 31, 2010
				As Reported			As Adjusted¹
	(In thousands)
Net revenues	$	454,621		$	444,322		$	427,811
Cost of sales	281,176			278,589			261,094
Gross profit	173,445			165,733			166,717
Gross margin	38		%	37		%	39		%
Operating expenses:
Research, development and engineering	24,569			25,227			21,046
Marketing and sales	31,269			30,405			28,846
General, administrative and other operating expenses	50,812			57,254			54,355
Total operating expenses	106,650			112,886			104,247
Income from operations	$	66,795		$	52,847		$	62,470

¹ Excluding Legacy Land Systems (INOVA).

Our total net revenues of $454.6 million for 2011 increased $10.3 million, or 2%, compared to total net revenues for 2010. Excluding the results of operations of the Legacy Land Systems (INOVA) business, total net revenues increased $26.8 million, or 6%, for 2011. Our overall gross profit percentage for 2011 was 38%, fairly comparable to 2010’s percentage, as

40

adjusted. Total operating expenses as a percentage of net revenues for 2011 and 2010 (as adjusted) were 23% and 24%, respectively. During 2011, we recorded income from operations of $66.8 million compared to $62.5 million for 2010, as adjusted.

Net Revenues, Gross Profits and Gross Margins (as adjusted, excluding Legacy Land Systems results for 2010)

Solutions — Net revenues for 2011 decreased by $13.5 million, to $263.5 million, compared to $277.0 million for 2010. This decrease was primarily due to lower data processing revenues as our data processing business was negatively impacted by the lagging effects of the slowdown in the Gulf of Mexico. This decrease was partially offset by increased demand for access to our multi-client new venture projects and licensing of data libraries in Greenland, East Africa and in North American shale plays, although overall data library sales were down. Gross profit decreased by $9.2 million to $84.6 million, representing a 32% gross margin, compared to $93.8 million, or a 34% gross margin, for 2010, primarily attributable to lower data processing revenues.

Systems — Net revenues for 2011 increased by $38.8 million to $153.0 million, compared to $114.2 million for 2010. This increase was driven primarily by higher sales of towed streamer and other marine products, including revenue recognized from the sale to BGP of a DigiSTREAMER twelve-streamer system. Gross profit for 2011 increased by $12.5 million to $61.1 million, representing a 40% gross margin, compared to $48.6 million, representing a 43% gross margin, for 2010. The decrease in gross margins in our Systems segment was primarily due to changes in product mix, with the large DigiSTREAMER system sale having a lower margin relative to our other marine streamer products, such as our streamer positioning equipment.

Software — Net revenues for 2011 increased by $1.5 million, or 4%, to $38.2 million, compared to $36.6 million for 2010. The increase in revenues as expressed in U.S. Dollars was principally due to the effect of foreign currency exchange rate fluctuations. Expressed in British pounds sterling (the local currency), net revenues were flat. Gross profit increased by $3.3 million to $27.7 million compared to $24.4 million for 2010, while gross margins increased by 7% to 73% due to changes in product mix (there was a relative increase in software sales during 2011, which have higher margins than the associated hardware sales in this segment).

Operating Expenses (as adjusted, excluding Legacy Land Systems results for 2010)

Research, Development and Engineering — Research, development and engineering expense was $24.6 million, or 5% of net revenues, for 2011, an increase of $3.6 million compared to $21.0 million, or 5% of net revenues, for 2010, as adjusted. This increase in research and development expense was due to increased investment by our Systems segment to develop our next-generation marine technologies. We continue to strategically invest in our next generation of seismic data acquisition services and products, particularly in shale formation technologies and marine platforms, and we expect this investment will continue in the future.

Marketing and Sales — Marketing and sales expense of $31.3 million, or 7% of net revenues, for 2011 increased $2.5 million compared to $28.8 million, or 7% of net revenues, for 2010, as adjusted. This increase in marketing and sales expense was due to higher advertising and employment-related expenses. We intend to continue investing significant sums in our marketing efforts as we seek to penetrate markets with our latest services and products.

General, Administrative and Other Operating Expenses — General, administrative and other operating expenses of $50.8 million for 2011 decreased $3.6 million compared to $54.4 million, for the corresponding period of 2010, as adjusted. General, administrative and other operating expenses as a percentage of net revenues for 2011 and 2010 were 11% and 13%, respectively. This decrease in expense was due to lower legal costs, and lower stock-based compensation and employment-related expenses. This decrease was partially offset by $2.9 million of severance charges primarily related to the restructuring of geophone operations in the Netherlands as we moved our geophone manufacturing operations to lower-cost centers in Asia.

Non-operating Items

Interest Expense, net — Interest expense, net, of $5.8 million for 2011 decreased $25.0 million compared to $30.8 million for 2010. Our interest expense in 2010 included accretion costs of approximately $8.7 million of non-cash debt discount (fully amortized in the first quarter of 2010) associated with two promissory notes payable to our senior credit bank lender, Bank of China, New York Branch, that we had signed and delivered to the bank in October 2009, and a write-off of $10.1 million of deferred financing charges related to our debt refinancing transactions during the first quarter of 2010. After excluding these two non-cash items, our 2010 interest expense, net, was $12.0 million for the year. As a result of our March 2010 debt refinancing transactions, our interest expense was significantly lower in 2011 than we experienced in 2010.

Equity in Losses of INOVA Geophysical — We account for our 49% interest in INOVA Geophysical as an equity method investment and record our share of earnings of INOVA Geophysical on a one fiscal quarter-lag basis. Thus, our share of INOVA Geophysical’s losses for the periods from October 1, 2010 to September 30, 2011 (“Fiscal 2011”) and from March 26, 2010 through September 30, 2010 (“Fiscal 2010”) are included in our consolidated financial results for 2011 and 2010, respectively. For 2011 and 2010, we recorded our 49% share of equity losses of approximately $22.9 million (including $7.7 million that

41

represents our share of a write-down of excess inventory) and $23.7 million (including $9.5 million that represents our share of a write-down of excess inventory), respectively. The global land seismic equipment business continued to be negatively impacted by reduced demand, particularly in North America and Russia during 2011 and 2010.

The following table reflects the summarized financial information for INOVA Geophysical for Fiscal 2011 and Fiscal 2010 (in thousands):

	Fiscal 2011			Fiscal 2010
Total net revenues	$	138,735		$	47,609
Gross profit (loss)	$	5,765		$	(21,574	)
Loss from operations	$	(41,836	)	$	(45,423	)
Net loss	$	(46,033	)	$	(48,416	)

Other Income (Expense) — Other expense for 2011 was $3.4 million compared to other expense of $8.2 million for 2010. The difference between 2011’s and 2010’s totals primarily results from the disposition of the Legacy Land System in 2010, offset by the fair value adjustment of a warrant we had issued to BGP and the gain on a legal settlement in 2010.

The following table reflects the significant items of other income (expense) is as follows (in thousands):

	Years Ended December 31,
	2011			2010
Gain on a legal settlement	$	—		$	24,500
Loss on disposition of land division	—			(38,115		)
Fair value adjustment of warrant	—			12,788
Write-down of investments	(1,312		)	(7,650		)
Other income (expense)	(2,135		)	228
Total other expense	$	(3,447	)	$	(8,249	)

Income Tax Expense — Income tax expense for 2011 was $10.1 million compared to $26.9 million for 2010. Income tax expense for 2011 included the establishment of $8.5 million of valuation allowance related to our share of INOVA Geophysical’s 2011 net loss and write-down of investments. We continued to maintain a valuation allowance for a significant portion of our U.S. federal net deferred tax assets. Our effective tax rates for 2011 and 2010 were 29.2% and 272.2% (provision on a loss), respectively. The change in our effective tax rate between 2011 and 2010 was due primarily to the transactions related to the formation of INOVA Geophysical in 2010, the establishment of additional valuation allowances and changes in the distribution of earnings between U.S. and foreign jurisdictions. Excluding the impact of these items, our effective tax rates would have been 17.2% and 14.5% for 2011 and 2010, respectively.

Liquidity and Capital Resources

Sources of Capital

Our cash requirements include our working capital requirements, cash required for our debt service payments, multi-client seismic data acquisition activities and capital expenditures. As of December 31, 2012, we had working capital of $164.7 million, which included $61.0 million of cash on hand. Working capital requirements are primarily driven by our continued investment in our multi-client seismic data library ($145.6 million in 2012) and, to a lesser extent, our inventory purchase obligations. At December 31, 2012, our outstanding inventory purchase obligations were $26.5 million. Also, our headcount has traditionally been a significant driver of our working capital needs. Because a significant portion of our business is involved in the planning, processing and interpretation of seismic data services, one of our largest investments is in our employees, which involves cash expenditures for their salaries, bonuses, payroll taxes and related compensation expenses.

Our working capital requirements may change from time to time depending upon many factors, including our operating results and adjustments in our operating plan required in response to industry conditions, competition, acquisition opportunities and unexpected events, such as an adverse judgment in our WesternGeco litigation, which is further discussed at Part I, Item 3. “Legal Proceedings.” In recent years, our primary sources of funds have been cash flows generated from our operations, our existing cash balances, debt and equity issuances and borrowings under our revolving credit facilities. At December 31, 2012, our principal outstanding credit facility consisted of a revolving line of credit providing for borrowings of up to $175.0 million, which $97.3 million was outstanding as of that date, leaving $77.7 million of unused and available capacity.

Revolving Line of Credit — On May 29, 2012, we amended the terms of our senior secured credit facility (the “Credit Facility”) with China Merchants Bank Co., Ltd., New York Branch, as administrative agent and lender (“CMB”). The First

42

Amendment to Credit Agreement and Loan Documents (the “First Amendment”) modified certain provisions of our senior credit agreement with CMB that we had entered into in March 2010.

As amended by the First Amendment, the Credit Facility now provides that we may make revolving credit borrowings in U.S. Dollars, Euros, British Pounds Sterling or Canadian Dollars up to an amount not to exceed the U.S. Dollar equivalent of $175.0 million. In addition, all then-outstanding term loan indebtedness under the Credit Facility was converted to revolving credit indebtedness, such that as of May 29, 2012, there was $98.3 million in total revolving credit indebtedness outstanding under the Credit Facility. For further information on our Credit Facility, see Note 11 “Long-term Debt, Lease Obligations and Interest Rate Caps” at Notes to Consolidated Financial Statements.

Meeting our Liquidity Requirements

We have historically financed our operations from internally generated cash, funds from equity and debt financings, and borrowings under revolving credit facilities. As of December 31, 2012, our total outstanding indebtedness (including capital lease obligations) was approximately $105.3 million, consisting of approximately $97.3 million outstanding under our revolving line of credit, $2.3 million relating to our facility lease obligations and $5.7 million of capital leases. As of December 31, 2012, we had $77.8 million undrawn and available on our revolving line of credit under our Credit Facility, and had approximately $61.0 million of cash on hand.

For 2012, total capital expenditures, including investments in our multi-client data library, were $160.5 million, and we are projecting capital expenditures for 2013 to be between $160 million to $190 million. Of the total projected 2013 capital expenditures, we are estimating that approximately $140 million to $160 million will be spent on investments in our multi-client data library.

We currently believe that our existing cash, cash generated from operations and our sources of working capital will be sufficient for us to meet our anticipated cash needs for at least the next 12 months. However, as further described in Part I, Item 3. “Legal Proceedings,” there are possible scenarios involving a judgment to be rendered in the WesternGeco lawsuit that would adversely affect our liquidity. If we become subject to a significant adverse judgment in the WesternGeco lawsuit, we might have to utilize a combination of cash on hand, undrawn balances available under our revolving line of credit under our senior debt facility and possibly incur additional debt and/or equity financing.

Cash Flow from Operations

Net cash provided by operating activities was $169.1 million for 2012, compared to $130.0 million for 2011. The increase in our cash flows from operations was due in part to the increase in our income from operations for 2012 compared to 2011. Also positively impacting our cash flows was an increase in accrued expenses related to our GeoVentures projects. This is partially offset by an increase in unbilled revenues related to GeoVentures.

Net cash provided by operating activities was $130.0 million for 2011, which was comparable to the $133.4 million of net cash provided by operating activities in 2010. Similar to 2010, our increase in sales activity during the fourth quarter of 2011, resulted in an increase in our accounts receivable and then had a positive impact to our cash balances in the first quarter of 2012, as we converted our receivables into cash.

Cash Flow from Investing Activities

Net cash flow used in investing activities was $144.3 million for 2012, compared to net cash used in investing activities of $181.6 million for 2011. The principal uses of cash in our investing activities during 2012 were $145.6 million of continued investments in our multi-client data library and $14.9 million in investments in property, plant and equipment. These uses of cash were offset by the cash provided by the maturity of $20.0 million in short-term bank certificates of deposit.

Net cash flow used in investing activities was $181.6 million for 2011, compared to net cash provided by investing activities of $27.5 million for 2010. The principal uses of cash in our investing activities during 2011 were $143.8 million of continued investments in our multi-client data library, our net investment of $20.0 million of excess cash in short-term bank certificates of deposit, our $11.1 million investment in property, plant and equipment and our $6.5 million investment in a convertible note.

Cash Flow from Financing Activities

Net cash flow used in financing activities was $6.5 million for 2012, compared to $9.8 million of net cash flow provided by financing activities for 2011. The net cash flow used in financing activities during 2012 was primarily related to repayment of our term loan of $98.3 million, offset by net borrowings under our amended revolving line of credit of $97.3 million. We also paid $1.4 million in cash dividends on our outstanding Series D Preferred Stock in 2012.

Net cash flow provided by financing activities was $9.8 million for 2011, compared to $92.7 million of net cash flow used in financing activities for 2010. The net cash flow provided by financing activities during 2011 was primarily related to

43

proceeds from stock option exercises of $13.1 million and an excess tax benefit from stock-based compensation of $3.3 million. This cash inflow was partially offset by payments on our long-term debt of $6.1 million. We also paid $1.4 million in cash dividends on our outstanding Series D Preferred Stock in 2011.

Inflation and Seasonality

Inflation in recent years has not had a material effect on our costs of goods or labor, or the prices for our products or services. Traditionally, our business has been seasonal, with strongest demand typically in the fourth quarter of our fiscal year. We experienced increased demand in the fourth quarters of both 2011 and 2012 driven by increased capital expenditures from our E&P customers, consistent with our historical seasonality.

Future Contractual Obligations

The following table sets forth estimates of future payments of our consolidated contractual obligations, as of December 31, 2012 (in thousands):

Contractual Obligations	Total		Less Than 1 Year		1-3 Years		3-5 Years		More Than 5 Years
Long-term debt	$	99,584	$	832	$	98,752	$	—	$	—
Interest on long-term debt obligations	5,800		2,597		3,203		—		—
Equipment capital lease obligations	5,744		2,664		3,080		—		—
Operating leases	102,753		8,641		16,197		17,878		60,037
Purchase obligations	26,451		26,451		—		—		—
Total	$	240,332	$	41,185	$	121,232	$	17,878	$	60,037

The long-term debt and lease obligations at December 31, 2012 included $97.3 million under our term loan scheduled to mature in 2015 and $2.3 million of indebtedness related to our Stafford, Texas facility sale-leaseback arrangement. The $5.7 million of capital lease obligations relates to GXT’s financing of computer and other equipment purchases.

The operating lease commitments at December 31, 2012 relate to our leases for certain equipment, offices, processing centers, and warehouse space under non-cancelable operating leases. Our purchase obligations primarily relate to our committed inventory purchase orders under which deliveries of inventory are scheduled to be made in 2013.

Critical Accounting Policies and Estimates

The preparation of consolidated financial statements in conformity with generally accepted accounting principles in the United States requires management to make choices between acceptable methods of accounting and to use judgment in making estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities, and the reported amounts of revenue and expenses. The following accounting policies are based on, among other things, judgments and assumptions made by management that include inherent risk and uncertainties. Management’s estimates are based on the relevant information available at the end of each period. We believe that all of the judgments and estimates used to prepare our financial statements were reasonable at the time we made them, but circumstances may change requiring us to revise our estimates in ways that could be materially adverse to our results of operations and financial condition. Management has discussed these critical accounting estimates with the Audit Committee of our Board of Directors and the Audit Committee has reviewed our disclosures relating to the estimates in this Management’s Discussion and Analysis.

Revenue Recognition

We derive revenue from the sale of (i) multi-client and proprietary surveys, licenses of “on-the-shelf” data libraries and imaging services, within our Solutions segment; (ii) seismic data acquisition systems and other seismic equipment within our Systems segment; and (iii) navigation, survey and quality control software systems within our Software segment.

Multi-Client and Proprietary Surveys, Data Libraries and Imaging Services — As our multi-client surveys are being designed, acquired or processed (referred to as the “new venture” phase), we enter into non-exclusive licensing arrangements with our customers. License revenues from these new venture survey projects are recognized during the new venture phase as the seismic data is acquired and/or processed on a proportionate basis as work is performed. Under this method, we recognize revenues based upon quantifiable measures of progress, such as kilometers acquired or days processed. Upon completion of a multi-client seismic survey, the seismic survey is considered “on-the-shelf,” and licenses to the survey data are granted to customers on a non-exclusive basis. Revenues on licenses of completed multi-client data surveys are recognized when (a) a signed final master geophysical data license agreement and accompanying supplemental license agreement are returned by the customer; (b) the purchase price for the license is fixed or determinable; (c) delivery or performance has occurred; and (d) no significant uncertainty exists as to the customer’s obligation, willingness or ability to pay. In limited situations, we have

44

provided the customer with a right to exchange seismic data for another specific seismic data set. In these limited situations, we recognize revenue at the earlier of the customer exercising its exchange right or the expiration of the customer’s exchange right.

We also perform seismic surveys under contracts to specific customers, whereby the seismic data is owned by those customers. We recognize revenue as the seismic data is acquired and/or processed on a proportionate basis as work is performed. We use quantifiable measures of progress consistent with our multi-client surveys.

Revenues from all imaging and other services are recognized when persuasive evidence of an arrangement exists, the price is fixed or determinable, and collectibility is reasonably assured. Revenues from contract services performed on a day-rate basis are recognized as the service is performed.

Acquisition Systems and Other Seismic Equipment — For the sales of seismic data acquisition systems and other seismic equipment, we follow the requirements of ASC 605-10 “Revenue Recognition” and recognize revenue when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the acquisition system or other seismic equipment is delivered to the customer and risk of ownership has passed to the customer, or, in the case in which a substantive customer-specified acceptance clause exists in the contract, the later of delivery or when the customer-specified acceptance is obtained

Software — For the sales of navigation, survey and quality control software systems, we follow the requirements for these transactions of ASC 985-605 “Software Revenue Recognition” (“ASC 985-605”). We recognize revenue from sales of these software systems when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the software is delivered to the customer and risk of ownership has passed to the customer, or, in the limited case in which a substantive customer-specified acceptance clause exists, the later of delivery or when the customer-specified acceptance is obtained. These arrangements generally include us providing related services, such as training courses, engineering services and annual software maintenance. We allocate revenue to each element of the arrangement based upon vendor-specific objective evidence (“VSOE”) of fair value of the element or, if VSOE is not available for the delivered element, we apply the residual method.

In addition to perpetual software licenses, we offer time-based software licenses. For time-based licenses, we recognize revenue ratably over the contract term, which is generally two to five years.

Multiple-element Arrangements — When separate elements (such as an acquisition system, other seismic equipment and/or imaging services) are contained in a single sales arrangement, or in related arrangements with the same customer, we follow the requirements of ASC 605-25 “Accounting for Multiple-Element Revenue Arrangement” (“ASC 605-25’). We adopted this guidance as of January 1, 2010, and applied the guidance to transactions initiated or materially modified on or after January 1, 2010. The guidance does not apply to software sales accounted for under ASC 985-605. We also adopted, in the same period, guidance within ASC 985-605 that excludes from its scope revenue arrangements that include both tangible products and software elements, such that the tangible products contain both software and non-software components that function together to deliver the tangible product’s essential functionality.

This guidance requires that arrangement consideration be allocated at the inception of an arrangement to all deliverables using the relative selling price method. We allocate arrangement consideration to each deliverable qualifying as a separate unit of accounting in an arrangement based on its relative selling price. We determine selling price using VSOE, if it exists, and otherwise, third-party evidence (“TPE”). If neither VSOE nor TPE of selling price exists for a unit of accounting, we use estimated selling price (“ESP”). We generally expect that we will not be able to establish TPE due to the nature of the markets in which we compete, and, as such, we typically will determine selling price using VSOE or if not available, ESP. VSOE is generally limited to the price charged when the same or similar product is sold on a standalone basis. If a product is seldom sold on a standalone basis, it is unlikely that we can determine VSOE for the product.

The objective of ESP is to determine the price at which we would transact if the product were sold by us on a standalone basis. Our determination of ESP involves a weighting of several factors based on the specific facts and circumstances of the arrangement. Specifically, we consider the anticipated margin on the particular deliverable, the selling price and profit margin for similar products and our ongoing pricing strategy and policies.

We believe this guidance principally impacts our Systems division in which a typical arrangement might involve the sale of various products of our acquisition systems and other seismic equipment. Products under these arrangements are often delivered to the customer within the same period, but in certain situations, depending upon product availability and the customer’s delivery requirements, the products could be delivered to the customer at different times. In these situations, we consider our products to be separate units of accounting provided the delivered product has value to the customer on a standalone basis. We consider a deliverable to have standalone value if the product is sold separately by us or another vendor or could be resold by the customer. Further, our revenue arrangements generally do not include a general right of return relative to the delivered products.

45

Multi-Client Data Library

Our multi-client data library consists of seismic surveys that are offered for licensing to customers on a non-exclusive basis. The capitalized costs include the costs paid to third parties for the acquisition of data and related activities associated with the data creation activity and direct internal processing costs, such as salaries, benefits, computer-related expenses, and other costs incurred for seismic data project design and management. For 2012, 2011 and 2010, we capitalized, as part of our multi-client data library, $3.8 million, $2.4 million, and $2.8 million, respectively, of direct internal processing costs.

Our method of amortizing the costs of an in-process multi-client data library (the period during which the seismic data is being acquired or processed, referred to as the “new venture” phase) consists of determining the percentage of actual revenue recognized to the total estimated revenues (which includes both revenues estimated to be realized during the new venture phase and estimated revenues from the licensing of the resulting “on-the-shelf” data survey), and multiplying that percentage by the total cost of the project (the sales forecast method). We consider a multi-client data survey to be complete when all work on the creation of the seismic data is finished and that data survey is available for licensing.

Once a multi-client data survey is completed, the data survey is considered “on-the-shelf” and our method of amortization is then the greater of (i) the sales forecast method or (ii) the straight-line basis over a four-year period. The greater amount of amortization resulting from the sales forecast method or the straight-line amortization policy is applied on a cumulative basis at the individual survey level. Under this policy, we first record amortization using the sales forecast method. The cumulative amortization recorded for each survey is then compared with the cumulative straight-line amortization. The four-year period utilized in this cumulative comparison commences when the data survey is determined to be complete. If the cumulative straight-line amortization is higher for any specific survey, additional amortization expense is recorded, resulting in the accumulated amortization being equal to the cumulative straight-line amortization for that survey. We have determined the amortization period to be four years based upon our historical experience that indicates that the majority of our revenues from multi-client surveys are derived during the acquisition and processing phases and during the four years subsequent to survey completion.

Estimated sales are determined based upon discussions with our customers, our experience, and our knowledge of industry trends. Changes in sales estimates may have the effect of changing the percentage relationship of cost of services to revenue. In applying the sales forecast method, an increase in the projected sales of a survey will result in lower cost of services as a percentage of revenue, and higher earnings when revenue associated with that particular survey is recognized, while a decrease in projected sales will have the opposite effect. Assuming that the overall volume of sales mix of surveys generating revenue in the period was held constant in 2012, an increase in 10% in the sales forecasts of all surveys would have decreased our amortization expense by approximately $5.9 million.

We estimate the ultimate revenue expected to be derived from a particular seismic data survey over its estimated useful economic life to determine the costs to amortize, if greater than straight-line amortization. That estimate is made by us at the project’s initiation. For a completed multi-client survey, we review the estimate quarterly. If during any such review, we determine that the ultimate revenue for a survey is expected to be materially more or less than the original estimate of total revenue for such survey, we decrease or increase (as the case may be) the amortization rate attributable to the future revenue from such survey. In addition, in connection with such reviews, we evaluate the recoverability of the multi-client data library, and if required under ASC 360-10 “Impairment and Disposal of Long-Lived Assets,” (“ASC 360-10”) record an impairment charge with respect to such data. There were no significant impairment charges during 2012, 2011 and 2010.

Reserve for Excess and Obsolete Inventories

Our reserve for excess and obsolete inventories is based on historical sales trends and various other assumptions and judgments, including future demand for our inventory, the timing of market acceptance of our new products and the risk of obsolescence driven by new product introductions. When we record a charge for excess and obsolete inventories, the amount is applied as a reduction in the cost basis of the specific inventory item for which the charge was recorded. Should these assumptions and judgments not be realized for these or for other reasons, our reserve would be adjusted to reflect actual results. Our industry is subject to technological change and new product development that could result in obsolete inventory. Our reserve for inventory at December 31, 2012 was $14.2 million compared to $13.0 million at December 31, 2011.

Goodwill and Other Intangible Assets

Goodwill is allocated to our reporting units, which is either the operating segment or one reporting level below the operating segment. For purposes of performing the impairment test for goodwill as required by ASC 350 “Intangibles — Goodwill and Other” (“ASC 350”), we established the following reporting units: Solutions, Software and Marine Systems. To determine the fair value of our reporting units, we use a discounted future returns valuation method. If we had established different reporting units or utilized different valuation methodologies, our impairment test results could differ. Additionally, we compared the sum of the estimated fair values of the individual reporting units less consolidated debt to our overall market capitalization as reflected by the our stock price.

46

In accordance with ASC 350, we are required to evaluate the carrying value of our goodwill at least annually for impairment, or more frequently if facts and circumstances indicate that it is more likely than not impairment has occurred. We formally evaluate the carrying value of our goodwill for impairment as of December 31 for each of our reporting units. We first perform a qualitative assessment by evaluating relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If we are unable to conclude qualitatively that it is more likely than not that a reporting unit’s fair value exceeds its carrying value, then we will use a two-step quantitative assessment of the fair value of a reporting unit. If the carrying value of a reporting unit of an entity that includes goodwill is determined to be more than the fair value of the reporting unit, there exists the possibility of impairment of goodwill. An impairment loss of goodwill is measured in two steps by first allocating the fair value of the reporting unit to net assets and liabilities including recorded and unrecorded other intangible assets to determine the implied carrying value of goodwill. The next step is to measure the difference between the carrying value of goodwill and the implied carrying value of goodwill, and, if the implied carrying value of goodwill is less than the carrying value of goodwill, an impairment loss is recorded equal to the difference.

We completed our annual goodwill impairment testing as of December 31, 2012 noting no impairments. Our goodwill as of December 31, 2012 was comprised of $27.0 million in our Marine Systems, $25.2 million in our Software and $2.9 million in our Solutions reporting units. Our 2012 qualitative assessment indicated that it is more likely than not that the fair value of our Software reporting unit exceeds its carrying value. Our 2012 quantitative assessment indicated that the fair values of our Solutions and Marine Systems reporting units significantly exceeded their carrying values. Our analyses are based upon our internal operating forecasts, which include assumptions about market and economic conditions. However, if our estimates or related projections associated with the reporting units significantly change in the future, we may be required to record further impairment charges. If the operational results of our segments are lower than forecasted or the economic conditions are worse than expected, then the fair value of our segments will be adversely affected.

Our intangible assets, other than goodwill, relate to our customer relationships and intellectual property rights. We amortize our intellectual property rights over the estimated periods of benefit (ranging from 4 to 5 years). We amortize our customer relationship intangible assets on an accelerated basis over a 10- to 15-year period, using the undiscounted cash flows of the initial valuation models. We use an accelerated basis as these intangible assets were initially valued using an income approach, with an attrition rate that resulted in a pattern of declining cash flows over a 10- to 15-year period.

Following the guidance of ASC 360, we review the carrying values of these intangible assets for impairment if events or changes in the facts and circumstances indicate that it is more likely than not their carrying value may not be recoverable. Any impairment determined is recorded in the current period and is measured by comparing the fair value of the related asset to its carrying value.

Similar to our treatment of goodwill, in making these assessments, we rely on a number of factors, including operating results, business plans, internal and external economic projections, anticipated future cash flows and external market data. However, if our estimates or related projections associated with the reporting units significantly change in the future, we may be required to record further impairment charges.

Stock-Based Compensation

We account for stock-based compensation under the recognition provisions of ASC 718 “Compensation – Stock Compensation” (“ASC 718”). We estimate the value of stock option awards on the date of grant using the Black-Scholes option pricing model. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by our stock price as well as assumptions regarding a number of subjective variables. These variables include, but are not limited to, our expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends.

In 2012, 2011 and 2010, we recognized $6.6 million, $6.3 million and $8.1 million, respectively, of stock-based compensation expense related to our employees’ outstanding stock-based awards. The total expense in 2012 was comprised of $1.3 million reflected in cost of sales, $0.5 million in research, development and engineering expense, $0.8 million in marketing and sales expense, and $4.0 million in general, administrative and other operating expense.

Deferred Tax Assets

In 2012, we released approximately $6.6 million of valuation allowance, as we were no longer in a recent cumulative loss position and our projections indicated that these deferred tax assets would likely be realized. However, additional valuation allowances were established on certain U.S. deferred tax assets related to capital losses and basis differences that will result in capital losses. We determine the valuation allowance in accordance with the provisions of ASC 740, “Income Taxes,” which requires that a valuation allowance be established or maintained when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. We will continue to record a valuation allowance for items that relate to capital losses or basis differences that will create capital losses until there is sufficient evidence to warrant reversal. In the event that our

47

expectations of future operating results change, an additional valuation allowance may be required to be established on our unreserved net deferred tax assets.

Foreign Sales Risks

For 2012, we recognized $200.6 million of sales to customers in Europe, $55.0 million of sales to customers in Asia Pacific, $46.2 million of sales to customers in Latin American countries, $37.5 million of sales to customers in the Middle East, $18.5 million of sales to customers in Africa and $4.4 million of sales to customers in the Commonwealth of Independent States, or former Soviet Union (CIS). The majority of our foreign sales are denominated in U.S. dollars. For 2012, 2011 and 2010, international sales comprised 69%, 66% and 60%, respectively, of total net revenues. Since 2008, global economic problems and uncertainties have generally increased in scope and nature. To the extent that world events or economic conditions negatively affect our future sales to customers in many regions of the world, as well as the collectability of our existing receivables, our future results of operations, liquidity, and financial condition may be adversely affected.

Certain Relationships and Related Party Transactions

For 2012, 2011 and 2010, we recorded revenues from BGP for purchases of services and products of $13.7 million, $34.5 million and $16.9 million, respectively. A majority of the revenues from BGP for 2011 related to the sale of a twelve-streamer DigiSTREAMER system. Trade receivables due from BGP were $1.6 million and $15.2 million at December 31, 2012 and 2011, respectively. BGP owned (purchased in March 2010) approximately 15.2% of our outstanding common stock as of December 31, 2012. For 2012, we paid BGP $2.0 million for seismic acquisition services provided on one of the our new venture projects. At December 31, 2012, we owed BGP $9.3 million for unpaid services received on that project.

Until June 2012, we were a party to a support and transition agreement to provide INOVA Geophysical with certain administrative services, including tax, legal, information technology, treasury, human resources, bookkeeping, facilities and marketing services. The terms of the arrangement provided for INOVA Geophysical to pay us approximately $0.3 million per month (beginning in April 2010) for services and to reimburse us for third-party and lease costs we incurred directly related to the support of INOVA Geophysical. We were paid $3.5 million under this arrangement in 2012. The term of the agreement was for two years and it terminated on June 30, 2012.

James M. Lapeyre, Jr. is the Chairman of the Board on our board of directors. He is also the chairman and a significant equity owner of Laitram, L.L.C. (Laitram), and he has served as president of Laitram and its predecessors since 1989. Laitram is a privately-owned, New Orleans-based manufacturer of food processing equipment and modular conveyor belts. Mr. Lapeyre and Laitram together owned approximately 6.4% of our outstanding common stock as of December 31, 2012.

We acquired DigiCourse, Inc., our marine positioning products business, from Laitram in 1998. In connection with that acquisition, we entered into a Continued Services Agreement with Laitram under which Laitram agreed to provide us certain bookkeeping, software, manufacturing, and maintenance services. Manufacturing services consist primarily of machining of parts for our marine positioning systems. The term of this agreement expired in September 2001 but we continue to operate under its terms. In addition, from time to time, when we have requested, the legal staff of Laitram has advised us on certain intellectual property matters with regard to our marine positioning systems. Under an amended lease of commercial property dated February 1, 2006, between Lapeyre Properties, L.L.C. (an affiliate of Laitram) and ION, we have leased certain office and warehouse space from Lapeyre Properties through January 2014, with the right to terminate the lease sooner upon 12 months’ notice. During 2012, we paid Laitram and its affiliates a total of approximately $4.1 million, which consisted of approximately $3.2 million for manufacturing services, $0.6 million for rent and other pass-through third party facilities charges, and $0.3 million for reimbursement for costs related to providing administrative and other back-office support services in connection with our Louisiana marine operations. For the 2011 and 2010 fiscal years, we paid Laitram and its affiliates a total of approximately $6.3 million and $3.1 million, respectively, for these services. In the opinion of our management, the terms of these services are fair and reasonable and as favorable to us as those that could have been obtained from unrelated third parties at the time of their performance.

Off-Balance Sheet Arrangements

As of December 31, 2012, we did not have any off-balance-sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K.

Indemnification

In the ordinary course of our business, we enter into contractual arrangements with our customers, suppliers, and other parties under which we may agree to indemnify the other party to such arrangement from certain losses it incurs relating to our products or services or for losses arising from certain events as defined within the particular contract. Some of these indemnification obligations may not be subject to maximum loss limitations. Historically, payments we have made related to these indemnification obligations have been immaterial.

48

Item 7A.  Quantitative and Qualitative Disclosures about Market Risk

Market risk is the risk of loss from adverse changes in market prices and rates. Our primary market risks include risks related to interest rates and foreign currency exchange rates.

Interest Rate Risk

As of December 31, 2012, we had outstanding total indebtedness of approximately $105.3 million, including capital lease obligations. Of that indebtedness, approximately $97.3 million accrues interest under rates that fluctuate based upon market rates plus an applicable margin. As of December 31, 2012, the $97.3 million in outstanding revolving loan indebtedness under the Credit Facility accrued interest at a rate of 2.67% per annum. Each 100 basis point increase in the interest rate would have the effect of increasing the annual amount of interest to be paid by approximately $1.0 million.

As our borrowings under the revolving credit facility are subject to variable interest rates, we are subject to interest rate risk. We are therefore impacted by changes in LIBOR and/or our bank's base rates. We may, from time to time, use derivative financial instruments (e.g., interest rate caps), to help mitigate rising interest rates under our credit facility. We do not use derivatives for trading or speculative purposes and only enter into contracts with major financial institutions based on their credit rating and other factors.   

Foreign Currency Exchange Rate Risk

Our operations are conducted in various countries around the world, and we receive revenue from these operations in a number of different currencies with the most significant of our international operations using British pounds sterling. As such, our earnings are subject to movements in foreign currency exchange rates when transactions are denominated in currencies other than the U.S. dollar, which is our functional currency, or the functional currency of many of our subsidiaries, which is not necessarily the U.S. dollar. To the extent that transactions of these subsidiaries are settled in currencies other than the U.S. dollar, a devaluation of these currencies versus the U.S. dollar could reduce the contribution from these subsidiaries to our consolidated results of operations as reported in U.S. dollars.

Through our subsidiaries, we operate in a wide variety of jurisdictions, including the United Kingdom, China, Canada, the Netherlands, Brazil, Russia, the United Arab Emirates, Egypt and other countries. Our financial results may be affected by changes in foreign currency exchange rates. Our consolidated balance sheet at December 31, 2012 reflected approximately $29.2 million of net working capital related to our foreign subsidiaries, a majority of our which is within the United Kingdom. Our foreign subsidiaries receive their income and pay their expenses primarily in their local currencies. To the extent that transactions of these subsidiaries are settled in the local currencies, a devaluation of these currencies versus the U.S. dollar could reduce the contribution from these subsidiaries to our consolidated results of operations as reported in U.S. dollars.

Item 8.    Financial Statements and Supplementary Data

The financial statements and related notes thereto required by this item begin at page F-1 hereof.

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

Not applicable.

Item 9A. Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures.  Disclosure controls and procedures are designed to ensure that information required to be disclosed in the reports we file with or submit to the SEC under the Exchange Act is recorded, processed, summarized and reported within the time period specified by the SEC’s rules and forms. Disclosure controls and procedures, include, without limitation, controls and procedures designed to ensure that information required to be disclosed under the Exchange Act is accumulated and communicated to management, including the principal executive officer and the principal financial officer, as appropriate, to allow timely decisions regarding required disclosure.

Our management carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act) as of December 31, 2012. Based upon that evaluation, our principal executive officer and our principal financial officer concluded that our disclosure controls and procedures were effective as of December 31, 2012.

(b)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) under the Exchange Act. Our internal control over financial reporting is designed 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. Our internal control over financial reporting includes those policies and procedures that:

49

(i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company;

(ii) 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 our management and directors; and

(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements.

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

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we assessed the effectiveness of our internal control over financial reporting as of December 31, 2012 based upon criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Based upon their assessment, management concluded that the internal control over financial reporting was effective as of December 31, 2012.

The independent registered public accounting firm that has also audited the Company’s consolidated financial statements included in this Annual Report on Form 10-K has issued an audit report on our internal control over financial reporting. This report appears below.

(c)Changes in Internal Control over Financial Reporting.  There was not any change in our internal control over financial reporting that occurred during the three months ended December 31, 2012, which has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

50

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of ION Geophysical Corporation and Subsidiaries

We have audited ION Geophysical Corporation and subsidiaries’ (the Company) internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (the COSO criteria). The Company’s management is responsible 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 the Company’s internal control over financial reporting based on our audit.

We conducted our audit 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 effective internal control over financial reporting was maintained in all material respects. Our audit 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, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed 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 its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that 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, ION Geophysical Corporation and subsidiaries maintained, in all material respects, effective internal control over financial reporting as of December 31, 2012, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of ION Geophysical Corporation and subsidiaries as of December 31, 2012 and 2011 and the related consolidated statements of operations, comprehensive income (loss), cash flows, and stockholders’ equity for each of the three years in the period ended December 31, 2012 of ION Geophysical Corporation and subsidiaries and our report dated February 19, 2013 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Houston, Texas

February 19, 2013

51

Item 9B.    Other Information

Not applicable.

PART III

Item 10.    Directors, Executive Officers and Corporate Governance

Reference is made to the information appearing in the definitive proxy statement, under “Item 1 — Election of Directors,” for our annual meeting of stockholders to be held on May 22, 2013 (the “2013 Proxy Statement”) to be filed with the SEC with respect to Directors, Executive Officers and Corporate Governance, which is incorporated herein by reference and made a part hereof in response to the information required by Item 10.

Item 11.    Executive Compensation

Reference is made to the information appearing in the 2013 Proxy Statement, under “Executive Compensation,” to be filed with the SEC with respect to Executive Compensation, which is incorporated herein by reference and made a part hereof in response to the information required by Item 11.

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

Reference is made to the information appearing in the 2013 Proxy Statement, under “Item 1 — Ownership of Equity Securities of ION” and “Equity Compensation Plan Information,” to be filed with the SEC with respect to Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters, which is incorporated herein by reference and made a part hereof in response to the information required by Item 12.

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

Reference is made to the information appearing in the 2013 Proxy Statement, under “Item 1 — Certain Transactions and Relationships,” to be filed with the SEC with respect to Certain Relationships and Related Transactions and Director Independence, which is incorporated herein by reference and made a part hereof in response to the information required by Item 13.

Item 14.    Principal Accountant Fees and Services

Reference is made to the information appearing in the 2013 Proxy Statement, under “Principal Auditor Fees and Services,” to be filed with the SEC with respect to Principal Accountant Fees and Services, which is incorporated herein by reference and made a part hereof in response to the information required by Item 14.

PART IV

Item 15.    Exhibits and Financial Statement Schedules

(a) List of Documents Filed

(1) Financial Statements

The financial statements filed as part of this report are listed in the “Index to Consolidated Financial Statements” on page F-1 hereof.

(2) Financial Statement Schedules

The following financial statement schedule is listed in the “Index to Consolidated Financial Statements” on page F-1 hereof, and is included as part of this Annual Report on Form 10-K:

Schedule II — Valuation and Qualifying Accounts

All other schedules are omitted because they are not applicable or the requested information is shown in the financial statements or noted therein.

(3) Exhibits

3.1	—	Restated Certificate of Incorporation dated September 24, 2007 filed on September 24, 2007 as Exhibit 3.4 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
3.2	—	Amended and Restated Bylaws of ION Geophysical Corporation filed on September 24, 2007 as Exhibit 3.5 to the Company’s Current Report on Form 8-K and incorporated herein by reference.

52

3.3	—	Certificate of Ownership and Merger merging ION Geophysical Corporation with and into Input/Output, Inc. dated September 21, 2007, filed on September 24, 2007 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.1	—	Certificate of Rights and Designations of Series D-1 Cumulative Convertible Preferred Stock, dated February 16, 2005 and filed on February 17, 2005 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.2	—	Certificate of Elimination of Series B Preferred Stock dated September 24, 2007, filed on September 24, 2007 as Exhibit 3.2 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.3	—	Certificate of Elimination of Series C Preferred Stock dated September 24, 2007, filed on September 24, 2007 as Exhibit 3.3 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.4	—	Certificate of Designation of Series D-2 Cumulative Convertible Preferred Stock dated December 6, 2007, filed on December 6, 2007 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.5	—	Certificate of Designations of Series A Junior Participating Preferred Stock of ION Geophysical Corporation effective as of December 31, 2008, filed on January 5, 2009 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.6	—	Form of Senior Indenture, filed on December 19, 2008 as Exhibit 4.3 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.7	—	Form of Senior Note, filed on December 19, 2008 as Exhibit 4.4 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.8	—	Form of Subordinated Indenture, filed on December 19, 2008 as Exhibit 4.5 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.9	—	Form of Subordinated Note, filed on December 19, 2008 as Exhibit 4.6 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.10	—	Certificate of Elimination of Series A Junior Participating Preferred Stock dated February 10, 2012, filed on February 13, 2012 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.1	—	Amended and Restated 1990 Stock Option Plan, filed on June 9, 1999 as Exhibit 4.2 to the Company’s Registration Statement on Form S-8 (Registration No. 333-80299), and incorporated herein by reference.
10.2	—	Office and Industrial/Commercial Lease dated June 2005 by and between Stafford Office Park II, LP as Landlord and Input/Output, Inc. as Tenant, filed on March 31, 2006 as Exhibit 10.2 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, and incorporated herein by reference.
10.3	—	Office and Industrial/Commercial Lease dated June 2005 by and between Stafford Office Park District as Landlord and Input/Output, Inc. as Tenant, filed on March 31, 2006 as Exhibit 10.3 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, and incorporated herein by reference.
**10.4	—	Input/Output, Inc. Amended and Restated 1996 Non-Employee Director Stock Option Plan, filed on June 9, 1999 as Exhibit 4.3 to the Company’s Registration Statement on Form S-8 (Registration No. 333-80299), and incorporated herein by reference.
**10.5	—	Amendment No. 1 to the Input/Output, Inc. Amended and Restated 1996 Non-Employee Director Stock Option Plan dated September 13, 1999 filed on November 14, 1999 as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended August 31, 1999 and incorporated herein by reference.
**10.6	—	Input/Output, Inc. Employee Stock Purchase Plan, filed on March 28, 1997 as Exhibit 4.4 to the Company’s Registration Statement on Form S-8 (Registration No. 333-24125), and incorporated herein by reference.
**10.7	—	Fifth Amended and Restated - 2004 Long-Term Incentive Plan, filed as Appendix A to the definitive proxy statement for the 2010 Annual Meeting of Stockholders of ION Geophysical Corporation, filed on April 21, 2010, and incorporated herein by reference.
10.8	—	Registration Rights Agreement dated as of November 16, 1998, by and among the Company and The Laitram Corporation, filed on March 12, 2004 as Exhibit 10.7 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2003, and incorporated herein by reference.

53

**10.9	—	Input/Output, Inc. 1998 Restricted Stock Plan dated as of June 1, 1998, filed on June 9, 1999 as Exhibit 4.7 to the Company’s Registration Statement on S-8 (Registration No. 333-80297), and incorporated herein by reference.
**10.10	—	Input/Output Inc. Non-qualified Deferred Compensation Plan, filed on April 1, 2002 as Exhibit 10.14 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2001, and incorporated herein by reference.
**10.11	—	Input/Output, Inc. 2000 Restricted Stock Plan, effective as of March 13, 2000, filed on August 17, 2000 as Exhibit 10.27 to the Company’s Annual Report on Form 10-K for the fiscal year ended May 31, 2000, and incorporated herein by reference.
**10.12	—	Input/Output, Inc. 2000 Long-Term Incentive Plan, filed on November 6, 2000 as Exhibit 4.7 to the Company’s Registration Statement on Form S-8 (Registration No. 333-49382), and incorporated by reference herein.
**10.13	—	Employment Agreement dated effective as of March 31, 2003, by and between the Company and Robert P. Peebler, filed on March 31, 2003 as Exhibit 10.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.14	—	First Amendment to Employment Agreement dated September 6, 2006, between Input/Output, Inc. and Robert P. Peebler, filed on September 7, 2006, as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.15	—	Second Amendment to Employment Agreement dated February 16, 2007, between Input/Output, Inc. and Robert P. Peebler, filed on February 16, 2007 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.16	—	Third Amendment to Employment Agreement dated as of August 20, 2007 between Input/Output, Inc. and Robert P. Peebler, filed on August 21, 2007 as Exhibit 10.2 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.17	—	Fourth Amendment to Employment Agreement, dated as of January 26, 2009, between ION Geophysical Corporation and Robert P. Peebler, filed on January 29, 2009 as Exhibit 10.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.18	—	Employment Agreement dated effective as of June 15, 2004, by and between the Company and David L. Roland, filed on August 9, 2004 as Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2004, and incorporated herein by reference.
**10.19	—	GX Technology Corporation Employee Stock Option Plan, filed on August 9, 2004 as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2004, and incorporated herein by reference.
10.20	—	Concept Systems Holdings Limited Share Acquisition Agreement dated February 23, 2004, filed on March 5, 2004 as Exhibit 2.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.21	—	Registration Rights Agreement by and between ION Geophysical Corporation and 1236929 Alberta Ltd. dated September 18, 2008, filed on November 7, 2008 as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q and incorporated herein by reference.
**10.22	—	Form of Employment Inducement Stock Option Agreement for the Input/Output, Inc. — Concept Systems Employment Inducement Stock Option Program, filed on July 27, 2004 as Exhibit 4.1 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-117716), and incorporated herein by reference.
**10.23	—	Form of Employee Stock Option Award Agreement for ARAM Systems Employee Inducement Stock Option Program, filed on November 14, 2008 as Exhibit 4.4 to the Company’s Registration Statement on Form S-8 (Registration No. 333-155378) and incorporated herein by reference.
10.24	—	Agreement dated as of February 15, 2005, between Input/Output, Inc. and Fletcher International, Ltd., filed on February 17, 2005 as Exhibit 10.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
10.25	—	First Amendment to Agreement, dated as of May 6, 2005, between the Company and Fletcher International, Ltd., filed on May 10, 2005 as Exhibit 10.2 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.26	—	Input/Output, Inc. 2003 Stock Option Plan, dated March 27, 2003, filed as Appendix B of the Company’s definitive proxy statement filed with the SEC on April 30, 2003, and incorporated herein by reference.
**10.27	—	Form of Employment Inducement Stock Option Agreement for the Input/Output, Inc. — GX Technology Corporation Employment Inducement Stock Option Program, filed on April 4, 2005 as Exhibit 4.1 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-123831), and incorporated herein by reference.

54

**10.28	—	ION Stock Appreciation Rights Plan dated November 17, 2008, filed as Exhibit 10.47 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2008, and incorporated herein by reference.
10.29	—	Canadian Master Loan and Security Agreement dated as of June 29, 2009 by and among ICON ION, LLC, as lender, ION Geophysical Corporation and ARAM Rentals Corporation, a Nova Scotia corporation, filed on August 6, 2009 as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2009, and incorporated herein by reference.
10.30	—	Master Loan and Security Agreement (U.S.) dated as of June 29, 2009 by and among ICON ION, LLC, as lender, ION Geophysical Corporation and ARAM Seismic Rentals, Inc., a Texas corporation, filed on August 6, 2009 as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2009, and incorporated herein by reference.
10.31	—	Registration Rights Agreement dated as of October 23, 2009 by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation filed on March 1, 2010 as Exhibit 10.54 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2009, and incorporated herein by reference.
10.32	—	Stock Purchase Agreement dated as of March 19, 2010, by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.33	—	Investor Rights Agreement dated as of March 25, 2010, by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.2 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.34	—	Share Purchase Agreement dated as of March 24, 2010, by and among ION Geophysical Corporation, INOVA Geophysical Equipment Limited and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.3 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.35	—	Joint Venture Agreement dated as of March 24, 2010, by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.4 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.36	—	Credit Agreement dated as of March 25, 2010, by and among ION Geophysical Corporation, ION International S.À R.L. and China Merchants Bank Co., Ltd., New York Branch, as administrative agent and lender, filed on March 31, 2010 as Exhibit 10.5 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.37	—	Fifth Amendment to Employment Agreement dated June 1, 2010, between ION Geophysical Corporation and Robert P. Peebler, filed on June 1, 2010 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.38	—	Employment Agreement dated August 2, 2011, effective as of January 1, 2012, between ION Geophysical Corporation and R. Brian Hanson, filed on November 3, 2011 as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2011, and incorporated herein by reference.
**10.39	—	Employment Agreement dated effective as of November 28, 2011, between ION Geophysical Corporation and Gregory J. Heinlein, filed on December 1, 2011 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.40	—	First Amendment to Credit Agreement and Loan Documents dated May 29, 2012, filed on May 29, 2012 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.41	—	Consulting Services Agreement dated January 1, 2013, between ION Geophysical Corporation and The Peebler Group LLC, filed on January 4, 2013 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
*21.1	—	Subsidiaries of the Company.
*23.1	—	Consent of Ernst & Young LLP.
*24.1	—	The Power of Attorney is set forth on the signature page hereof.
*31.1	—	Certification of Chief Executive Officer Pursuant to Rule 13a-14(a) or Rule 15d-14(a).
*31.2	—	Certification of Chief Financial Officer Pursuant to Rule 13a-14(a) or Rule 15d-14(a).
*32.1	—	Certification of Chief Executive Officer Pursuant to 18 U.S.C. §1350.
*32.2	—	Certification of Chief Financial Officer Pursuant to 18 U.S.C. §1350.

55

	101	—	The following materials are formatted in Extensible Business Reporting Language (XBRL): (i) Consolidated Balance Sheets at December 31, 2012 and 2011, (ii) Consolidated Statements of Operations for the years ended December 31, 2012, 2011 and 2010, (iii) Comprehensive Income (Loss) for the years ended December 31, 2012, 2011 and 2010, (iv) Consolidated Statements of Cash Flows for the years ended December 31, 2012, 2011 and 2010, (v) Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2012, 2011 and 2010, (vi) Notes to Consolidated Financial Statements and (vii) Schedule II – Valuation and Qualifying Accounts.***
*	Filed herewith.
**	Management contract or compensatory plan or arrangement.
***	In accordance with Rule 406T of Regulation S-T, the XBRL-related information in Exhibit 101 to this Annual Report on Form 10-K is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act, is deemed not filed for purposes of section 18 of the Exchange Act and otherwise is not subject to liability under these sections.

(b) Exhibits required by Item 601 of Regulation S-K.

Reference is made to subparagraph (a) (3) of this Item 15, which is incorporated herein by reference.

(c) Not applicable.

56

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized in the City of Houston, State of Texas, on February 19, 2013.

ION GEOPHYSICAL CORPORATION
By	/s/ R. Brian Hanson
	R. Brian Hanson
	President and Chief Executive Officer

POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints R. Brian Hanson and David L. Roland and each of them, as his or her true and lawful attorneys-in-fact and agents with full power of substitution and re-substitution for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all documents relating to the Annual Report on Form 10-K for the year ended December 31, 2012, including any and all amendments and supplements thereto, and to file the same with all exhibits thereto and other documents in connection therewith with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully as to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or their or his substitute or substitutes may lawfully do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this Annual Report on Form 10-K has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Name	Capacities	Date
/S/ R. BRIAN HANSON	President, Chief Executive Officer and Director (Principal Executive Officer)	February 19, 2013
R. Brian Hanson
/S/ GREGORY J. HEINLEIN	Senior Vice President and Chief Financial Officer (Principal Financial Officer)	February 19, 2013
Gregory J. Heinlein
/S/ MICHAEL L. MORRISON	Vice President and Corporate Controller (Principal Accounting Officer)	February 19, 2013
Michael L. Morrison
/S/ JAMES M. LAPEYRE, JR.	Chairman of the Board of Directors and Director	February 19, 2013
James M. Lapeyre, Jr.
/S/ DAVID H. BARR	Director	February 19, 2013
David H. Barr
/S/ HAO HUIMIN	Director	February 19, 2013
Hao Huimin

57

Name	Capacities	Date
/S/ MICHAEL C. JENNINGS	Director	February 19, 2013
Michael C. Jennings
/S/ FRANKLIN MYERS	Director	February 19, 2013
Franklin Myers
/S/ S. JAMES NELSON, JR.	Director	February 19, 2013
S. James Nelson, Jr.
/S/ JOHN N. SEITZ	Director	February 19, 2013
John N. Seitz

58

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

	Page
ION Geophysical Corporation and Subsidiaries:
Report of Independent Registered Public Accounting Firm	F-2
Consolidated Balance Sheets — December 31, 2012 and 2011	F-3
Consolidated Statements of Operations — Years ended December 31, 2012, 2011, and 2010	F-4
Consolidated Statements of Comprehensive Income (Loss) — Years ended December 31, 2012, 2011, and 2010	F-5
Consolidated Statements of Cash Flows — Years ended December 31, 2012, 2011, and 2010	F-6
Consolidated Statements of Stockholders’ Equity — Years ended December 2012, 2011, and 2010	F-7
Notes to Consolidated Financial Statements	F-8
Schedule II — Valuation and Qualifying Accounts	S-1

F-1

Report of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders of ION Geophysical Corporation and Subsidiaries

We have audited the accompanying consolidated balance sheets of ION Geophysical Corporation and subsidiaries as of December 31, 2012 and 2011, and the related consolidated statements of operations, comprehensive income (loss), cash flows, and stockholders’ equity for each of the three years in the period ended December 31, 2012. Our audits also included the financial statement schedule listed in the Index at Item 15(a). These financial statements and schedule are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements and schedule 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. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of ION Geophysical Corporation and subsidiaries at December 31, 2012 and 2011, and the consolidated results of their operations and their cash flows for each of the three years in the period ended December 31, 2012, in conformity with U.S. generally accepted accounting principles. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), ION Geophysical Corporation and subsidiaries’ internal control over financial reporting as of December 31, 2012, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 19, 2013 expressed an unqualified opinion thereon.

/s/ Ernst & Young LLP

Houston, Texas

February 19, 2013

F-2

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

	December 31,
	2012			2011
	(In thousands, except share data)
ASSETS
Current assets:
Cash and cash equivalents	$	60,971		$	42,402
Short-term investments	—			20,000
Accounts receivable, net	127,136			130,612
Unbilled receivables	89,784			25,628
Inventories	70,675			70,145
Prepaid expenses and other current assets	25,605			13,460
Total current assets	374,171			302,247
Deferred income tax asset	28,414			17,645
Property, plant, equipment and seismic rental equipment, net	33,772			24,771
Multi-client data library, net	230,315			175,768
Investment in INOVA Geophysical	73,925			72,626
Goodwill	55,349			53,963
Intangible assets, net	14,841			17,716
Other assets	9,796			9,322
Total assets	$	820,583		$	674,058
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Current maturities of long-term debt	$	3,496		$	5,770
Accounts payable	28,688			22,296
Accrued expenses	124,095			61,384
Accrued multi-client data library royalties	26,300			15,318
Deferred revenue	26,899			33,802
Total current liabilities	209,478			138,570
Long-term debt, net of current maturities	101,832			99,342
Other long-term liabilities	8,131			7,719
Total liabilities	319,441			245,631
Redeemable noncontrolling interests	2,123			2,615
Commitments and contingencies
Stockholders’ equity:
Cumulative convertible preferred stock	27,000			27,000
Common stock, $0.01 par value; authorized 200,000,000 shares; outstanding 156,356,949 and 155,479,776 shares at December 31, 2012 and 2011, respectively, net of treasury stock	1,564			1,555
Additional paid-in capital	848,669			843,271
Accumulated deficit	(360,297		)	(423,612		)
Accumulated other comprehensive loss	(11,886		)	(16,193		)
Treasury stock, at cost, 849,539 shares at both December 31, 2012 and 2011	(6,565		)	(6,565		)
Total stockholders’ equity	498,485			425,456
Noncontrolling interests	534			356
Total equity	499,019			425,812
Total liabilities and equity	$	820,583		$	674,058

See accompanying Notes to Consolidated Financial Statements.

F-3

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

	Years Ended December 31,
	2012			2011			2010
	(In thousands, except per share data)
Service revenues	$	354,583		$	265,586		$	279,120
Product revenues	171,734			189,035			165,202
Total net revenues	526,317			454,621			444,322
Cost of services	219,324			177,956			183,931
Cost of products	91,192			103,220			94,658
Gross profit	215,801			173,445			165,733
Operating expenses:
Research, development and engineering	34,080			24,569			25,227
Marketing and sales	35,240			31,269			30,405
General, administrative and other operating expenses	71,954			50,812			57,254
Total operating expenses	141,274			106,650			112,886
Income from operations	74,527			66,795			52,847
Interest expense, net	(5,265		)	(5,784		)	(30,770		)
Equity in earnings (losses) of INOVA Geophysical	297			(22,862		)	(23,724		)
Other income (expense)	17,124			(3,447		)	(8,249		)
Income (loss) before income taxes	86,683			34,702			(9,896		)
Income tax expense	23,857			10,136			26,942
Net income (loss)	62,826			24,566			(36,838		)
Net income attributable to noncontrolling interests	489			208			—
Net income (loss) attributable to ION	63,315			24,774			(36,838		)
Preferred stock dividends	1,352			1,352			1,936
Net income (loss) applicable to common shares	$	61,963		$	23,422		$	(38,774	)
Net income (loss) per share:
Basic	$	0.40		$	0.15		$	(0.27	)
Diluted	$	0.39		$	0.15		$	(0.27	)
Weighted average number of common shares outstanding:
Basic	155,801			154,811			144,278
Diluted	162,765			156,090			144,278

See accompanying Notes to Consolidated Financial Statements.

F-4

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

	Years Ended December 31,
	2012		2011			2010
	(In thousands)
Net income (loss)	$	62,826	$	24,566		$	(36,838	)
Other comprehensive income (loss), net of taxes, as appropriate:
Foreign currency translation adjustments	2,756		(28		)	(266		)
Equity interest in INOVA Geophysical’s other comprehensive income (loss)	1,003		315			(103		)
Unrealized income (loss) on available-for-sale securities	425		(730		)	—
Other changes in other comprehensive (loss)	123		(220		)	(60		)
Other comprehensive income (loss), net of taxes	4,307		(663		)	(429		)
Comprehensive net income (loss)	67,133		23,903			(37,267		)
Comprehensive income attributable to noncontrolling interest	489		208			—
Comprehensive net income (loss) attributable to ION	$	67,622	$	24,111		$	(37,267	)

See accompanying Notes to Consolidated Financial Statements.

F-5

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Years Ended December 31,
	2012			2011			2010
	(In thousands)
Cash flows from operating activities:
Net income (loss)	$	62,826		$	24,566		$	(36,838	)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (other than multi-client library)	16,202			13,917			24,795
Amortization of multi-client data library	89,080			77,317			85,940
Stock-based compensation expense	6,598			6,344			8,147
Equity in (earnings) losses of INOVA Geophysical	(297		)	22,862			23,724
Write-down of marine equipment	5,928			—			—
Write-down of investments	556			1,312			7,650
Write-down of unamortized debt issuance costs and debt discount	—			—			18,777
Fair value adjustment of warrant	—			—			(12,788		)
Loss on disposition of land division	—			—			38,115
Deferred income taxes	3,686			(8,131		)	22,207
Excess tax benefit from stock-based compensation	(193		)	(3,294		)	—
Change in operating assets and liabilities:
Accounts receivable	4,006			(52,955		)	9,515
Unbilled receivables	(64,156		)	44,962			(48,935		)
Inventories	(7,039		)	(6,641		)	(16,138		)
Accounts payable, accrued expenses and accrued royalties	61,873			(7,546		)	9,550
Deferred revenue	(6,957		)	15,957			7,281
Other assets and liabilities	(3,032		)	1,314			(7,634		)
Net cash provided by operating activities	169,081			129,984			133,368
Cash flows from investing activities:
Investment in multi-client data library	(145,627		)	(143,782		)	(64,426		)
Purchase of property, plant and equipment	(14,877		)	(11,060		)	(7,372		)
Investment in seismic rental equipment	(1,773		)	—			—
Maturity (net purchases) of short-term investments	20,000			(20,000		)	—
Investment in convertible notes	(2,000		)	(6,500		)	—
Proceeds from disposition of land division, net of fees paid	—			—			99,790
Other investing activities	—			(280		)	(500		)
Net cash provided by (used in) investing activities	(144,277		)	(181,622		)	27,492
Cash flows from financing activities:
Borrowings under revolving line of credit	148,250			—			104,000
Repayments under revolving line of credit	(51,000		)	—			(193,429		)
Payments on notes payable and long-term debt	(101,702		)	(6,145		)	(145,558		)
Net proceeds from issuance of debt	—			—			105,695
Net proceeds from issuance of stock	—			—			38,039
Payment of preferred dividends	(1,352		)	(1,352		)	(1,936		)
Proceeds from employee stock purchases and exercise of stock options	807			13,105			1,071
Excess tax benefit from stock-based compensation	193			3,294			—
Contribution from noncontrolling interests	212			961			—
Other financing activities	(1,862		)	(59		)	(612		)
Net cash provided by (used in) financing activities	(6,454		)	9,804			(92,730		)
Effect of change in foreign currency exchange rates on cash and cash equivalents	219			(183		)	72
Net increase (decrease) in cash and cash equivalents	18,569			(42,017		)	68,202
Cash and cash equivalents at beginning of period	42,402			84,419			16,217
Cash and cash equivalents at end of period	$	60,971		$	42,402		$	84,419

See accompanying Notes to Consolidated Financial Statements.

F-6

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands, except shares)	Cumulative Convertible Preferred Stock					Common Stock					Additional Paid - In Capital			Accumulated Deficit			Accumulated Other Comprehensive Loss			Treasury Stock			Noncontrolling Interests			Total Equity
	Shares		Amount			Shares		Amount
Balance at January 1, 2010	70,000		$	68,786		118,688,702		$	1,187		$	666,928		$	(411,548	)	$	(36,320	)	$	(6,565	)	$	—		$	282,468
Net loss	—		—			—		—			—			(36,838		)	—			—			—			(36,838		)
Translation adjustment	—		—			—		—			—			—			(266		)	—			—			(266		)
Change in fair value of effective cash flow hedges (net of taxes)	—		—			—		—			—			—			(60		)	—			—			(60		)
Equity interest in INOVA Geophysical’s other comprehensive income	—		—			—		—			—			—			(103		)	—			—			(103		)
Accumulated translation adjustments recognized through earnings upon disposition of land division	—		—			—		—			—			—			21,219			—			—			21,219
Preferred stock dividends	—		—			—		—			(1,936		)	—			—			—			—			(1,936		)
Stock-based compensation expense	—		—			—		—			8,147			—			—			—			—			8,147
Modification of stock awards (disposed of land division)	—		—			—		—			1,713			—			—			—			—			1,713
Issuance of stock to BGP	—		—			23,789,536		238			105,406			—			—			—			—			105,644
Exercise of stock options	—		—			323,610		3			1,068			—			—			—			—			1,071
Vesting of restricted stock units/awards	—		—			486,168		5			(5		)	—			—			—			—			—
Restricted stock cancelled for employee minimum income taxes	—		—			(76,568	)	(1		)	(611		)	—			—			—			—			(612		)
Conversion of cumulative convertible preferred stock	(43,000	)	(41,786		)	9,659,231		97			41,689			—			—			—			—			—
Balance at December 31, 2010	27,000		27,000			152,870,679		1,529			822,399			(448,386		)	(15,530		)	(6,565		)	—			380,447
Net income (a)	—		—			—		—			—			24,774			—			—			(123		)	24,651
Translation adjustment	—		—			—		—			—			—			(28		)	—			(32		)	(60		)
Change in fair value of effective cash flow hedges (net of taxes)	—		—			—		—			—			—			(220		)	—			—			(220		)
Equity interest in INOVA Geophysical’s other comprehensive income	—		—			—		—			—			—			315			—			—			315
Unrealized net income (loss) on available-for-sale securities	—		—			—		—			—			—			(730		)	—			—			(730		)
Preferred stock dividends	—		—			—		—			(1,352		)	—			—			—			—			(1,352		)
Stock-based compensation expense	—		—			—		—			6,344			—			—			—			—			6,344
Exercise of stock options	—		—			2,145,792		21			13,084			—			—			—			—			13,105
Vesting of restricted stock units/awards	—		—			449,231		5			(5		)	—			—			—			—			—
Restricted stock cancelled for employee minimum income taxes	—		—			(93,488	)	(1		)	(682		)	—			—			—			—			(683		)
Issuance of stock for the ESPP	—		—			107,562		1			623			—			—			—			—			624
Tax benefits from stock-based compensation	—		—			—		—			2,860			—			—			—			—			2,860
Contribution from noncontrolling interests	—		—			—		—			—			—			—			—			511			511
Balance at December 31, 2011	27,000		27,000			155,479,776		1,555			843,271			(423,612		)	(16,193		)	(6,565		)	356			425,812
Net income (a)	—		—			—		—			—			63,315			—			—			4			63,319
Translation adjustment	—		—			—		—			—			—			2,756			—			(38		)	2,718
Change in fair value of effective cash flow hedges (net of taxes)	—		—			—		—			—			—			123			—			—			123
Equity interest in INOVA Geophysical’s other comprehensive income	—		—			—		—			—			—			1,003			—			—			1,003
Unrealized net income (loss) on available-for-sale securities	—		—			—		—			—			—			425			—			—			425
Preferred stock dividends	—		—			—		—			(1,352		)	—			—			—			—			(1,352		)
Stock-based compensation expense	—		—			—		—			6,598			—			—			—			—			6,598
Exercise of stock options	—		—			194,410		2			805			—			—			—			—			807
Vesting of restricted stock units/awards	—		—			764,704		8			(8		)	—			—			—			—			—
Restricted stock cancelled for employee minimum income taxes	—		—			(209,068	)	(2		)	(1,266		)	—			—			—			—			(1,268		)
Issuance of stock for the ESPP	—		—			127,127		1			758			—			—			—			—			759
Tax benefits from stock-based compensation	—		—			—		—			(137		)	—			—			—			—			(137		)
Contribution from noncontrolling interests	—		—			—		—			—			—			—			—			212			212
Balance at December 31, 2012	27,000		$	27,000		156,356,949		$	1,564		$	848,669		$	(360,297	)	$	(11,886	)	$	(6,565	)	$	534		$	499,019

(a) Net income attributable to noncontrolling interests for 2012 and 2011 excludes $(0.5) million and $(0.1) million related to the redeemable noncontrolling interests, which is reported in the mezzanine equity section of the Consolidated Balance Sheet at December 31, 2012 and 2011.

See accompanying Notes to Consolidated Financial Statements.

F-7

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1)    Summary of Significant Accounting Policies

General Description and Principles of Consolidation

ION Geophysical Corporation and its subsidiaries offer a full suite of services and products for seismic data acquisition and processing. The consolidated financial statements include the accounts of ION Geophysical Corporation and its majority-owned subsidiaries (collectively referred to as the “Company” or “ION”). Intercompany balances and transactions have been eliminated. Certain reclassifications were made to previously reported amounts in the consolidated financial statements and notes thereto to make them consistent with the current presentation format.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates are made at discrete points in time based on relevant market information. These estimates may be subjective in nature and involve uncertainties and matters of judgment and, therefore, cannot be determined with precision. Areas involving significant estimates include, but are not limited to, accounts and unbilled receivables, inventory valuation, sales forecasts related to multi-client data libraries, goodwill and intangible asset valuation and deferred taxes. Actual results could materially differ from those estimates.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. At December 31, 2012 and 2011, there was $1.5 million and $3.3 million, respectively, of short-term restricted cash used to secure standby and commercial letters of credit, which is included within Prepaid Expenses and Other Current Assets.

Short-term Investments

Short-term investments are comprised solely of bank certificates of deposit denominated in U.S. dollars with original maturities in excess of three months and represent the investment of excess cash that is available for current operations. The Company recorded these investments on its balance sheet at cost. These investments matured in February 2012.

Accounts and Unbilled Receivables

Accounts and unbilled receivables are recorded at cost, less the related allowance for doubtful accounts. The Company considers current information and events regarding the customers’ ability to repay their obligations, such as the length of time the receivable balance is outstanding, the customers’ credit worthiness and historical experience. Unbilled receivables relate to revenues recognized on multi-client surveys and imaging services on a proportionate basis and on licensing of multi-client data libraries for which invoices have not yet been presented to the customer.

Inventories

Inventories are stated at the lower of cost (primarily first-in, first-out method) or market. The Company provides reserves for estimated obsolescence or excess inventory equal to the difference between cost of inventory and its estimated market value based upon assumptions about future demand for the Company’s products, market conditions and the risk of obsolescence driven by new product introductions.

Property, Plant, Equipment and Seismic Rental Equipment

Property, plant, equipment and seismic rental equipment are stated at cost. Depreciation expense is provided straight-line over the following estimated useful lives:

	Years
Machinery and equipment	3-7
Buildings	5-25
Seismic rental equipment	3-5
Leased equipment and other	3-10

F-8

Expenditures for renewals and betterments are capitalized; repairs and maintenance are charged to expense as incurred. The cost and accumulated depreciation of assets sold or otherwise disposed of are removed from the accounts and any gain or loss is reflected in operating expenses.

The Company evaluates the recoverability of long-lived assets, including property, plant, equipment and seismic rental equipment, when indicators of impairment exist, relying on a number of factors including operating results, business plans, economic projections, and anticipated future cash flows. Impairment in the carrying value of an asset held for use is recognized whenever anticipated future cash flows (undiscounted) from an asset are estimated to be less than its carrying value. The amount of the impairment recognized is the difference between the carrying value of the asset and its fair value.

Multi-Client Data Library

The multi-client data library consists of seismic surveys that are offered for licensing to customers on a non-exclusive basis. The capitalized costs include costs paid to third parties for the acquisition of data and related activities associated with the data creation activity and direct internal processing costs, such as salaries, benefits, computer-related expenses, and other costs incurred for seismic data project design and management. For 2012, 2011, and 2010, the Company capitalized, as part of its multi-client data library, $3.8 million, $2.4 million, and $2.8 million, respectively, of direct internal processing costs. At December 31, 2012 and 2011, multi-client data library costs and accumulated amortization consisted of the following (in thousands):

	December 31,
	2012			2011
Gross costs of multi-client data creation	$	689,464		$	545,836
Less accumulated amortization	(459,149		)	(370,068		)
Total	$	230,315		$	175,768

The Company’s method of amortizing the costs of an in-process multi-client data library (the period during which the seismic data is being acquired and/or processed, referred to as the “new venture” phase) consists of determining the percentage of actual revenue recognized to the total estimated revenues (which includes both revenues estimated to be realized during the new venture phase and estimated revenues from the licensing of the resulting “on-the-shelf” data survey), and multiplying that percentage by the total cost of the project (the sales forecast method). The Company considers a multi-client data survey to be complete when all work on the creation of the seismic data is finished and that data survey is available for licensing. Once a multi-client data survey is complete, the data survey is considered “on-the-shelf” and the Company’s method of amortization is then the greater of (i) the sales forecast method or (ii) the straight-line basis over a four-year period. The greater amount of amortization resulting from the sales forecast method or the straight-line amortization policy is applied on a cumulative basis at the individual survey level. Under this policy, the Company first records amortization using the sales forecast method. The cumulative amortization recorded for each survey is then compared with the cumulative straight-line amortization. The four-year period utilized in this cumulative comparison commences when the data survey is determined to be complete. If the cumulative straight-line amortization is higher for any specific survey, additional amortization expense is recorded, resulting in accumulated amortization being equal to the cumulative straight-line amortization for such survey. The Company has determined the amortization period of four years based upon its historical experience that indicates that the majority of its revenues from multi-client surveys are derived during the acquisition and processing phases and during four years subsequent to survey completion.

The Company estimates the ultimate revenue expected to be derived from a particular seismic data survey over its estimated useful economic life to determine the costs to amortize, if greater than straight-line amortization. That estimate is made by the Company at the project’s initiation. For a completed multi-client survey, the Company reviews the estimate quarterly. If during any such review, the Company determines that the ultimate revenue for a survey is expected to be materially more or less than the original estimate of ultimate revenue for such survey, the Company decreases or increases (as the case may be) the amortization rate attributable to the future revenue from such survey. In addition, in connection with such reviews, the Company evaluates the recoverability of the multi-client data library, and, if required under Accounting Standards Codification (“ASC”) 360-10 “Impairment and Disposal of Long-Lived Assets” (“ASC 360-10”), records an impairment charge with respect to such data. There were no significant impairment charges associated with the Company’s multi-client data library during 2012, 2011 and 2010.

Cost Method Investments

Certain of the Company’s investments are accounted for under the cost method. The Company’s cost method investments that have quoted prices from active markets are classified as “available-for-sale” and revalued at each reporting date, with all unrealized gains or losses, net of taxes, included in accumulated other comprehensive income (outside of earnings) until realized or until such time that a decline in fair value below cost is deemed to be other-than-temporary. The Company’s cost

F-9

method investments for which quoted market prices are not available are recorded at cost and reviewed periodically if there are events or changes in circumstances that may have a significant adverse effect on the fair value of the investments.

Equity Method Investments

The Company uses the equity method of accounting for investments in entities in which the Company has an ownership interest between 20% and 50% and exercises significant influence. Under this method, an investment is carried at the acquisition cost, plus the Company’s equity in undistributed earnings or losses since acquisition, less distributions received. As provided by ASC 815 “Investments,” the Company accounts for its share of earnings in INOVA Geophysical on a one fiscal quarter lag basis. See further discussion regarding the Company’s equity method investment in INOVA Geophysical at Note 3 “— Equity Method Investment in INOVA Geophysical.”

Noncontrolling Interests

The Company has both redeemable and non-redeemable noncontrolling interests. Non-redeemable noncontrolling interests in majority-owned affiliates is reported as a separate component of equity in “Noncontrolling interests” in the Consolidated Balance Sheets. Redeemable Noncontrolling Interests include noncontrolling ownership interests which the holders have the rights, at certain times, to require the Company to acquire their ownership interest in those entities. These interests are not considered to be permanent equity and are reported in the mezzanine section of the Consolidated Balance Sheets at the greater of their carrying value or redemption value at the balance sheet date. “Net income (loss)” in the Consolidated Statements of Operations is attributable to both controlling and noncontrolling interests.

Goodwill and Other Intangible Assets

Goodwill is allocated to reporting units, which are either the operating segment or one reporting level below the operating segment. For purposes of performing the impairment test for goodwill as required by ASC 350 “Intangibles — Goodwill and Other,” (“ASC 350”) the Company established the following reporting units: Solutions, Software and Marine Systems.

In accordance with ASC 350, the Company is required to evaluate the carrying value of its goodwill at least annually for impairment, or more frequently if facts and circumstances indicate that it is more likely than not impairment has occurred. The Company formally evaluates the carrying value of its goodwill for impairment as of December 31 for each of its reporting units. The Company first performs a qualitative assessment by evaluating relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit exceeds its carrying amount. If the Company is unable to conclude qualitatively that it is more likely than not that a reporting unit’s fair value exceeds its carrying value, then it will use a two-step quantitative assessment of the fair value of a reporting unit. To determine the fair value of these reporting units, the Company uses a discounted future returns valuation model, which includes a variety of level 3 inputs. The key inputs for the model include the operational five-year forecast for the Company and the then-current market discount factor. Additionally, the Company compared the sum of the estimated fair values of the individual reporting units less consolidated debt to the Company’s overall market capitalization as reflected by the Company’s stock price. If the carrying value of a reporting unit that includes goodwill is determined to be more than the fair value of the reporting unit, there exists the possibility of impairment of goodwill. An impairment loss of goodwill is measured in two steps by first allocating the fair value of the reporting unit to net assets and liabilities including recorded and unrecorded intangible assets to determine the implied carrying value of goodwill. The next step is to measure the difference between the carrying value of goodwill and the implied carrying value of goodwill, and, if the implied carrying value of goodwill is less than the carrying value of goodwill, an impairment loss is recorded equal to the difference. See further discussion below at Note 8 “— Goodwill.”

The intangible assets, other than goodwill, relate to customer relationships and intellectual property rights. The Company amortizes it’s intellectual property rights over the estimated periods of benefit (ranging from 4 to 5 years). The Company amortizes its customer relationship intangible assets on an accelerated basis over a 10 to 15-year period, using the undiscounted cash flows of the initial valuation models. The Company uses an accelerated basis as these intangible assets were initially valued using an income approach, with an attrition rate that resulted in a pattern of declining cash flows over a 10 to 15-year period.

Following the guidance of ASC 360, the Company reviews the carrying values of these intangible assets for impairment if events or changes in the facts and circumstances indicate that their carrying value may not be recoverable. Any impairment determined is recorded in the current period and is measured by comparing the fair value of the related asset to its carrying value. See further discussion below at Note 9 “— Intangible Assets.”

Fair Value of Financial Instruments

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable, accrued multi-client data library royalties, investment in two convertible notes from a privately owned U.S.-based technology company, interest rate caps, long-term debt and an investment in shares of Reservoir Exploration

F-10

Technology, ASA (“RXT”), a Norwegian seismic contractor. The carrying amounts of cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable and accrued multi-client data library royalties approximate fair value due to the highly liquid nature of these instruments. The fair value of the long-term debt is calculated using a market approach based upon Level 3 inputs, including an estimated interest rate reflecting current market conditions. The Company performs a fair value analysis with respect to its investment in the convertible notes using a market approach based upon Level 3 inputs, including the terms and likelihood of an investment event and the time to conversion or repayment. The Company performs a fair value analysis of its investment in RXT based upon Level 1 inputs, utilizing quoted prices from active markets.

Revenue Recognition

The Company derives revenue from the sale of (i) multi-client and proprietary surveys, licenses of “on-the-shelf” data libraries and imaging services within its Solutions segment; (ii) acquisition systems and other seismic equipment within its Systems segment; and (iii) navigation, survey and quality control software systems within its Software segment. All revenues of the Solutions segment and the services component of revenues for the Software segment are classified as services revenues. All other revenues are classified as product revenues.

Multi-Client and Proprietary Surveys, Data Libraries and Imaging Services — As multi-client surveys are being designed, acquired and/or processed (referred to as the “new venture” phase), the Company enters into non-exclusive licensing arrangements with its customers. License revenues from these new venture survey projects are recognized during the new venture phase as the seismic data is acquired and/or processed on a proportionate basis as work is performed. Under this method, the Company recognizes revenues based upon quantifiable measures of progress, such as kilometers acquired or days processed. Upon completion of a multi-client seismic survey, the seismic survey is considered “on-the-shelf,” and licenses to the survey data are granted to customers on a non-exclusive basis. Revenues on licenses of completed multi-client data surveys are recognized when (a) a signed final master geophysical data license agreement and accompanying supplemental license agreement are returned by the customer; (b) the purchase price for the license is fixed or determinable; (c) delivery or performance has occurred; (d) and no significant uncertainty exists as to the customer’s obligation, willingness or ability to pay. In limited situations, the Company has provided the customer with a right to exchange seismic data for another specific seismic data set. In these limited situations, the Company recognizes revenue at the earlier of the customer exercising its exchange right or the expiration of the customer’s exchange right.

The Company also performs seismic surveys under contracts to specific customers, whereby the seismic data is owned by those customers. Revenue is recognized as the seismic data is acquired and/or processed on a proportionate basis as work is performed. The Company uses quantifiable measures of progress consistent with its multi-client surveys.

Revenues from all imaging and other services are recognized when persuasive evidence of an arrangement exists, the price is fixed or determinable, and collectibility is reasonably assured. Revenues from contract services performed on a day-rate basis are recognized as the service is performed.

Acquisition Systems and Other Seismic Equipment — For the sales of acquisition systems and other seismic equipment, the Company follows the requirements of ASC 605-10 “Revenue Recognition” and recognizes revenue when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the acquisition system or other seismic equipment is delivered to the customer and risk of ownership has passed to the customer, or, in the case in which a substantive customer-specified acceptance clause exists in the contract, the later of delivery or when the customer-specified acceptance is obtained.

Software — For the sales of navigation, survey and quality control software systems, the Company follows the requirements of ASC 985-605 “Software Revenue Recognition” (“ASC 985-605”). The Company recognizes revenue from sales of these software systems when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the software is delivered to the customer and risk of ownership has passed to the customer, or, in the limited case in which a substantive customer-specified acceptance clause exists, the later of delivery or when the customer-specified acceptance is obtained. These arrangements generally include the Company providing related services, such as training courses, engineering services and annual software maintenance. The Company allocates revenue to each element of the arrangement based upon vendor-specific objective evidence (“VSOE”) of fair value of the element or, if VSOE is not available for the delivered element, the Company applies the residual method.

In addition to perpetual software licenses, the Company offers time-based software licenses. For time-based licenses, the Company recognizes revenue ratably over the contract term, which is generally two to five years.

Multiple-element Arrangements — When separate elements (such as an acquisition system, other seismic equipment and/or imaging services) are contained in a single sales arrangement, or in related arrangements with the same customer, the Company follows the requirements of ASC 605-25 “Accounting for Multiple-Element Revenue Arrangement” (“ASC 605-25”). The Company adopted this guidance as of January 1, 2010. Accordingly, the Company applied this guidance to transactions initiated or materially modified on or after January 1, 2010. The guidance does not apply to software sales accounted for under

F-11

ASC 985-605. The Company also adopted, in the same period, guidance within ASC 985-605 that excludes from its scope revenue arrangements that include both tangible products and software elements, such that the tangible products contain both software and non-software components that function together to deliver the tangible product’s essential functionality.

This guidance requires that arrangement consideration be allocated at the inception of an arrangement to all deliverables using the relative selling price method. The Company allocates arrangement consideration to each deliverable qualifying as a separate unit of accounting in an arrangement based on its relative selling price. The Company determines its selling price using VSOE, if it exists, or otherwise third-party evidence (“TPE”). If neither VSOE nor TPE of selling price exists for a unit of accounting, the Company uses estimated selling price (“ESP”). The Company generally expects that it will not be able to establish TPE due to the nature of the markets in which the Company competes, and, as such, the Company typically will determine its selling price using VSOE or, if not available, ESP. VSOE is generally limited to the price charged when the same or similar product is sold on a standalone basis. If a product is seldom sold on a standalone basis, it is unlikely that the Company can determine VSOE for the product.

The objective of ESP is to determine the price at which the Company would transact if the product were sold by the Company on a standalone basis. The Company’s determination of ESP involves a weighting of several factors based on the specific facts and circumstances of the arrangement. Specifically, the Company considers the anticipated margin on the particular deliverable, the selling price and profit margin for similar products and the Company’s ongoing pricing strategy and policies.

The Company believes this guidance principally impacts its Systems segment. A typical arrangement within the Systems segment involves the sale of various products of the Company’s acquisition systems and other seismic equipment. Products under these arrangements are often delivered to the customer within the same period, but in certain situations, depending upon product availability and the customer’s delivery requirements, the products could be delivered to the customer at different times. In these situations, the Company considers its products to be separate units of accounting provided the delivered product has value to the customer on a standalone basis. The Company considers a deliverable to have standalone value if the product is sold separately by the Company or another vendor or could be resold by the customer. Further, the Company’s revenue arrangements generally do not include a general right of return relative to the delivered products.

Product Warranty — The Company generally warrants that its manufactured equipment will be free from defects in workmanship, materials and parts. Warranty periods generally range from 30 days to three years from the date of original purchase, depending on the product. The Company provides for estimated warranty as a charge to costs of sales at the time of sale. However, new information may become available, or circumstances (such as applicable laws and regulations) may change, thereby resulting in an increase or decrease in the amount required to be accrued for such matters (and therefore a decrease or increase in reported net income in the period of such change). In limited cases, the Company has provided indemnification of customers for potential intellectual property infringement claims relating to products sold.

Research, Development and Engineering

Research, development and engineering costs primarily relate to activities that are designed to improve the quality of the subsurface image and overall acquisition economics of the Company’s customers. The costs associated with these activities are expensed as incurred. These costs include prototype material and field testing expenses, along with the related salaries and stock-based compensation, facility costs, consulting fees, tools and equipment usage, and other miscellaneous expenses associated with these activities.

Stock-Based Compensation

The Company accounts for stock-based compensation under the provisions of ASC 718, “Compensation – Stock Compenstion” (“ASC 718”). The Company estimates the value of stock option awards on the date of grant using the Black-Scholes option pricing model. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of subjective variables. These variables include, but are not limited to, expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends. The Company recognizes stock-based compensation on the straight-line basis over the service period of each award (generally the award’s vesting period).

Income Taxes

Income taxes are accounted for under the liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, including operating loss and tax credit carry-forwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply in the years in which those temporary differences are expected to be recovered or settled. The Company records a valuation allowance when it is more likely than not that all or a portion of

F-12

deferred tax assets will not be realized. (see Note 16 “— Income Taxes”). The effect on deferred income tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

Comprehensive Net Income (Loss)

Comprehensive net income (loss) as shown in the Consolidated Statements of Comprehensive Income (Loss) and the balance in Accumulated Other Comprehensive Income (Loss) as shown in the Consolidated Balance Sheets as of December 31, 2012 and 2011, consist of foreign currency translation adjustments, equity interest in INOVA Geophysical’s accumulated other comprehensive income and unrealized gains or losses on available-for-sale securities.

Foreign Currency Gains and Losses

Assets and liabilities of the Company’s subsidiaries operating outside the United States that account in a functional currency other than the U.S. dollar have been translated to U.S. dollars using the exchange rate in effect at the balance sheet date. Results of foreign operations have been translated using the average exchange rate during the periods of operation. Resulting translation adjustments have been recorded as a component of Accumulated Other Comprehensive Income (Loss). Foreign currency transaction gains and losses are included in the Consolidated Statements of Operations in Other Income (Expense) as they occur. Total foreign currency transaction gains (losses) were $(1.9) million, $(1.7) million and $1.0 million for 2012, 2011, and 2010, respectively.

Concentration of Foreign Sales Risk

The majority of the Company’s foreign sales are denominated in U.S. dollars. For 2012, 2011 and 2010, international sales comprised 69%, 66% and 60%, respectively, of total net revenues. Since 2008, global economic problems and uncertainties have generally increased in scope and nature. To the extent that world events or economic conditions negatively affect the Company’s future sales to customers in many regions of the world, as well as the collectability of the Company’s existing receivables, the Company’s future results of operations, liquidity, and financial condition would be adversely affected.

(2)    Segment and Geographic Information

The Company evaluates and reviews its results based on three segments: Solutions, Systems and Software; and its INOVA Geophysical joint venture. For operating results of INOVA Geophysical, see Note 3 “Equity Method Investment in INOVA Geophysical.” The Company measures segment operating results based on income from operations. The Legacy Land Systems (INOVA) segment represents the disposed land division operations through March 25, 2010, the date of the closing of INOVA Geophysical.

A summary of segment information is as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Net revenues:
Solutions:
New Venture	$	147,346	$	98,335	$	81,293
Data Library	88,085		76,332		87,664
Total multi-client revenues	235,431		174,667		168,957
Data Processing	115,834		88,783		107,997
Total	$	351,265	$	263,450	$	276,954
Systems:
Towed Streamer	$	77,769	$	111,453	$	83,567
Ocean Bottom	14,823		960		1,876
Other	39,404		40,591		28,783
Total	$	131,996	$	153,004	$	114,226
Software:
Software Systems	$	39,738	$	36,031	$	34,465
Services	3,318		2,136		2,166
Total	$	43,056	$	38,167	$	36,631
Legacy Land Systems (INOVA)	$	—	$	—	$	16,511
Total	$	526,317	$	454,621	$	444,322

F-13

	Years Ended December 31,
	2012			2011			2010
Gross profit:
Solutions	$	132,950		$	84,647		$	93,804
Systems	50,790			61,109			48,557
Software	32,061			27,689			24,356
Legacy Land Systems (INOVA)	—			—			(984		)
Total	$	215,801		$	173,445		$	165,733
Gross margin:
Solutions	38		%	32		%	34		%
Systems	38		%	40		%	43		%
Software	74		%	73		%	66		%
Legacy Land Systems (INOVA)	—		%	—		%	(6		)%
Total	41		%	38		%	37		%
Income from operations:
Solutions	$	88,589		$	50,620		$	60,632
Systems	10,132			33,034			27,749
Software	28,129			24,463			21,936
Corporate and other	(52,323		)	(41,322		)	(47,847		)
Legacy Land Systems (INOVA)	—			—			(9,623		)
Income from operations	74,527			66,795			52,847
Interest expense, net	(5,265		)	(5,784		)	(30,770		)
Equity in earnings (losses) of INOVA Geophysical	297			(22,862		)	(23,724		)
Other income (expense)	17,124			(3,447		)	(8,249		)
Income (loss) before income taxes	$	86,683		$	34,702		$	(9,896	)

Depreciation and amortization (including multi-client data library):
Solutions	$	98,342	$	84,958	$	96,271
Systems	4,185		3,229		2,992
Software	776		1,116		2,461
Corporate and other	1,979		1,931		2,644
Legacy Land Systems (INOVA)	—		—		6,367
Total	$	105,282	$	91,234	$	110,735

	December 31,
	2012		2011
Total assets:
Solutions	$	438,663	$	321,384
Systems	156,484		179,154
Software	45,948		38,949
Corporate and other	179,488		134,571
Total	$	820,583	$	674,058

F-14

	December 31,
	2012		2011
Total assets by geographic area:
North America	$	533,035	$	463,287
Europe	91,101		59,730
Middle East	130,070		111,336
Latin America	51,692		28,692
Other	14,685		11,013
Total	$	820,583	$	674,058

Intersegment sales are insignificant for all periods presented. Corporate assets include all assets specifically related to corporate personnel and operations, a majority of cash and cash equivalents, and the investment in INOVA Geophysical. Depreciation and amortization expense is allocated to segments based upon use of the underlying assets.

A summary of net revenues by geographic area follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Europe	$	200,589	$	160,230	$	136,846
North America	164,157		155,877		177,480
Asia Pacific	55,028		78,777		51,496
Latin America	46,212		12,199		45,954
Middle East	37,471		28,227		10,536
Africa	18,469		7,926		18,417
Commonwealth of Independent States	4,391		11,385		3,593
Total	$	526,317	$	454,621	$	444,322

Net revenues are attributed to geographic areas on the basis of the ultimate destination of the equipment or service, if known, or the geographic area imaging services are provided. If the ultimate destination of such equipment is not known, net revenues are attributed to the geographic area of initial shipment.

(3)    Equity Method Investment in INOVA Geophysical

In March 2010, the Company completed the disposition of most of its land seismic equipment businesses in connection with its formation of a land equipment joint venture with BGP. BGP is a subsidiary of China National Petroleum Corporation (“CNPC”) and is a leading global geophysical services contracting company. The resulting joint venture company, organized under the laws of the People’s Republic of China, was named INOVA Geophysical Equipment Limited (“INOVA Geophysical”). BGP owns a 51% interest in INOVA Geophysical, and the Company owns a 49% interest. INOVA Geophysical is managed through a Board of Directors consisting of four members appointed by BGP and three members appointed by the Company. The Company accounts for its 49% interest in INOVA Geophysical as an equity method investment. The Company accounts for its share of earnings in INOVA Geophysical on a one fiscal quarter lag basis. Thus, the Company’s share of INOVA Geophysical’s results for the period from October 1, 2011 to September 30, 2012 (“Fiscal 2012”), are included in the Company’s financial results for 2012, the Company’s share of INOVA Geophysical’s results for the period from October 1, 2010 to September 30, 2011 (“Fiscal 2011”), are included in the Company’s financial results for 2011, and the Company’s share of INOVA Geophysical’s results for the period from March 26, 2010 to September 30, 2010 (“Fiscal 2010”), are included in the Company’s financial results for 2010.

The following table reflects summarized financial information for INOVA Geophysical as of September 30, 2012 and 2011 and for Fiscal 2012, Fiscal 2011 and Fiscal 2010 (in thousands):

	September 30,
	2012		2011
Current assets	$	138,401	$	104,291
Non-current assets	101,280		108,039
Current liabilities	78,241		38,849
Non-current liabilities	9,290		25,701
Equity	$	152,150	$	147,780

F-15

	Fiscal 2012		Fiscal 2011				Fiscal 2010
Total net revenues	$	188,336	$	138,735			$	47,609
Gross profit (loss)	$	39,320	$	5,765		(A)	$	(21,574	)	(B)
Income (loss) from operations	$	3,241	$	(41,836	)		$	(45,423	)
Net income (loss)	$	2,197	$	(46,033	)		$	(48,416	)

(A) Includes approximately $15.7 million of excess inventory charge reflected in INOVA’s third quarter of 2011 and ION’s fourth quarter of 2011.

(B) Includes approximately $19.3 million of excess inventory charge reflected in INOVA’s third quarter of 2010 and ION’s fourth quarter of 2010.

The difference between the amount of the Company’s share in INOVA Geophysical’s net income (loss) for Fiscal 2012 and Fiscal 2011 and the “Equity in earnings (losses) of INOVA Geophysical” reflected on the Consolidated Statement of Operations for the years ended December 31, 2012 and 2011 is primarily due to transactions between the Company’s multi-client data library business and INOVA Geophysical, specifically the Company’s rental of land seismic equipment from INOVA Geophysical to acquire seismic data for its new venture projects. The Company initially defers its 49% of the net income related to these intercompany sales, which will then be recognized over time in proportion to the amortization expense of the associated data library.

(4)    Net Income (Loss) per Common Share

Basic net income (loss) per common share is computed by dividing net income (loss) applicable to common shares by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share is determined based on the assumption that dilutive restricted stock and restricted stock unit awards have vested and outstanding dilutive stock options have been exercised and the aggregate proceeds were used to reacquire common stock using the average price of such common stock for the period. The total number of shares issuable under anti-dilutive options at December 31, 2012, 2011, and 2010 were 4,864,553, 2,974,886 and 7,721,792, respectively.

There were 27,000 shares of Series D Cumulative Convertible Preferred Stock outstanding as of December 31, 2012, which may be converted, at the holder’s election, into up to 6,065,075 shares of common stock. See further discussion of the Series D Preferred Stock conversion provisions at Note 12 “— Cumulative Convertible Preferred Stock.” The outstanding shares of all Series D Preferred Stock was anti-dilutive for the years ended December 31, 2011 and 2010.

The following table summarizes the computation of basic and diluted net income (loss) per common share (in thousands, except per share amounts):

	Years Ended December 31,
	2012		2011		2010
Net income (loss) applicable to common shares	$	61,963	$	23,422	$	(38,774	)
Income impact of assumed Series D Preferred Stock conversion	1,352		—		—
Net income after assumed Series D Preferred Stock conversion	$	63,315	$	23,422	$	(38,774	)
Weighted average number of common shares outstanding	155,801		154,811		144,278
Effect of dilutive stock awards	899		1,279		—
Effect of Series D Preferred Stock	6,065		—		—
Weighted average number of diluted common shares outstanding	162,765		156,090		144,278
Basic net income (loss) per share	$	0.40	$	0.15	$	(0.27	)
Diluted net income (loss) per share	$	0.39	$	0.15	$	(0.27	)

(5)    Accounts Receivable

A summary of accounts receivable is as follows (in thousands):

	December 31,
	2012			2011
Accounts receivable, principally trade	$	133,847		$	131,810
Less allowance for doubtful accounts	(6,711		)	(1,198		)
Accounts receivable, net	$	127,136		$	130,612

F-16

At December 31, 2012, the Company specifically reserved $5.6 million related to the outstanding receivables due from a marine seismic contractor. The Company has determined that the collectability of this receivable is remote.

(6)    Inventories

A summary of inventories is as follows (in thousands):

	December 31,
	2012			2011
Raw materials and purchased subassemblies	$	49,421		$	45,829
Work-in-process	8,613			8,294
Finished goods	26,880			29,059
Reserve for excess and obsolete inventories	(14,239		)	(13,037		)
Total	$	70,675		$	70,145

The Company provides for estimated obsolescence or excess inventory charges in amounts equal to the difference between the cost of inventory and market based upon assumptions about future demand for the Company’s products and market conditions. For 2012, 2011, and 2010, the Company recorded inventory obsolescence and excess inventory charges of approximately $1.3 million, $0.6 million, and $1.6 million, respectively.

(7)    Property, Plant, Equipment and Seismic Rental Equipment

A summary of property, plant, equipment and seismic rental equipment is as follows (in thousands):

	December 31,
	2012			2011
Buildings	$	15,126		$	15,130
Machinery and equipment	87,127			71,550
Seismic rental equipment	10,895			2,986
Furniture and fixtures	3,403			3,377
Other	3,857			1,727
Total	120,408			94,770
Less accumulated depreciation	(86,636		)	(69,999		)
Property, plant, equipment and seismic rental equipment, net	$	33,772		$	24,771

Total depreciation expense, including amortization of assets recorded under capital leases, for 2012, 2011 and 2010 was $12.5 million, $9.4 million and $15.7 million, respectively. In 2012, the Company wrote down $5.9 million of marine seismic equipment it had leased to a marine seismic contractor. This write-down was reflected in general, administrative and other operating expenses.

(8)    Goodwill

On December 31, 2012 and 2011, the Company completed the annual reviews of the carrying value of goodwill in its Solutions, Software and Marine Systems reporting units and noted no impairments. The Company’s 2012 qualitative assessment indicated that it is more likely than not that the fair value of its Software reporting unit exceeds its carrying value. The 2012 quantitative assessment indicated that the fair values of its Solutions and Marine Systems reporting units significantly exceeded their carrying values. However, if the estimates or related projections associated with the reporting units significantly change in the future, the Company may be required to record impairment charges.

The following is a summary of the changes in the carrying amount of goodwill for the years ended December 31, 2012 and 2011 (in thousands):

	Solutions		Software			Systems		Total
Balance at January 1, 2011	$	—	$	24,349		$	26,984	$	51,333
Goodwill acquired during the year	2,701		—			—		2,701
Impact of foreign currency translation adjustments	—		(71		)	—		(71		)
Balance at December 31, 2011	2,701		24,278			26,984		53,963
Purchase price adjustment	242		—			—		242
Impact of foreign currency translation adjustments	—		1,144			—		1,144
Balance at December 31, 2012	$	2,943	$	25,422		$	26,984	$	55,349

F-17

(9)    Intangible Assets

A summary of intangible assets, net, is as follows (in thousands):

	December 31, 2012
	Gross Amount		Accumulated Amortization			Net
Customer relationships	$	42,397	$	(28,909	)	$	13,488
Intellectual property rights	4,300		(2,947		)	1,353
Proprietary technology, trade names, and patents	19,008		(19,008		)	—
Total	$	65,705	$	(50,864	)	$	14,841

	December 31, 2011
	Gross Amount		Accumulated Amortization			Net
Customer relationships	$	42,194	$	(25,529	)	$	16,665
Intellectual property rights	3,350		(2,299		)	1,051
Proprietary technology, trade names, and patents	18,985		(18,985		)	—
Total	$	64,529	$	(46,813	)	$	17,716

Total amortization expense for intangible assets for 2012, 2011 and 2010 was $3.9 million, $4.5 million and $7.4 million, respectively. A summary of the estimated amortization expense for the next five years is as follows (in thousands):

Years Ended December 31,
2013	$	3,512
2014	$	2,823
2015	$	2,411
2016	$	1,962
2017	$	1,670

(10)    Accrued Expenses

A summary of accrued expenses is as follows (in thousands):

	December 31,
	2012		2011
Accrued multi-client data library acquisition costs	$	47,678	$	26,871
Compensation, including compensation-related taxes and commissions	28,993		19,398
Deferred income tax liability	20,556		5,695
Accrued legal contingency	10,000		—
Income tax payable	8,348		1,211
Other	8,520		8,209
Total accrued expenses	$	124,095	$	61,384

(11)    Long-term Debt, Lease Obligations and Interest Rate Caps

	December 31,
Obligations (in thousands)	2012			2011
Revolving line of credit	$	97,250		$	—
Term loan facility	—			99,250
Facility lease obligation	2,334			3,047
Equipment capital leases	5,744			2,815
Total	105,328			105,112
Current portion of long-term debt and lease obligations	(3,496		)	(5,770		)
Non-current portion of long-term debt and lease obligations	$	101,832		$	99,342

F-18

Revolving Line of Credit

On May 29, 2012, the Company amended the terms of its senior secured credit facility (the “Credit Facility”) with China Merchants Bank Co., Ltd., New York Branch, as administrative agent and lender (“CMB”). The First Amendment to Credit Agreement and Loan Documents (the “First Amendment”) modified certain provisions of the Company’s senior credit agreement with CMB that it had entered into on March 25, 2010.

As amended by the First Amendment, the Credit Facility provides that the Company may make revolving credit borrowings in U.S. Dollars, Euros, British Pounds Sterling or Canadian Dollars up to an amount not to exceed the U.S. Dollar equivalent of $175.0 million. The Company also agreed that no additional borrowings may be made at any time at which the outstanding indebtedness under the revolving line of credit (principal, accrued interest and fees) exceeds the U.S. Dollar equivalent of $175.0 million. In addition, all then-outstanding term loan indebtedness under the Credit Facility was converted to revolving credit indebtedness, such that as of May 29, 2012, there was $98.3 million in total revolving credit indebtedness outstanding under the Credit Facility. The First Amendment eliminated sub-facility limits under the Credit Facility.

The Company’s obligations under the Credit Facility continue to be guaranteed by certain of its material U.S. subsidiaries that remain as parties to the Credit Facility. In addition, INOVA Geophysical continues to provide a bank stand-by letter of credit as credit support for the Company’s obligations under the Credit Agreement.

As amended by the First Amendment, the interest rates per annum on borrowings under the Credit Facility are at the Company’s option:

• An alternate base rate equal to the sum of (i) the greatest of (a) the prime rate of CMB, (b) a federal funds effective rate plus 0.50%, or (c) an adjusted LIBOR-based rate plus 1.0%, and (ii) an applicable interest margin of 1.4% (reduced from 2.5%); or

• For eurodollar borrowings and borrowings in Euros, Pounds Sterling or Canadian Dollars, the sum of (i) an adjusted LIBOR-based rate, and (ii) an applicable interest margin of 2.4% (reduced from 3.5%).

As of December 31, 2012, the $97.3 million in outstanding revolving loan indebtedness under the Credit Facility accrued interest at a rate of 2.67% per annum.

The Credit Facility requires compliance with certain financial covenants, including the following:

• Maintain a minimum fixed charge coverage ratio, as defined, in an amount equal to at least 1.125 to 1;

• Not exceed a maximum leverage ratio, as defined, of 3.25 to 1; and

• Maintain a minimum tangible net worth of at least 60% of ION’s tangible net worth as of March 31, 2010, as defined.

As of December 31, 2012, the Company was in compliance with these financial covenants and the Company expects to remain in compliance with these financial covenants for at least the next 12 months.

Interest Rate Caps

In August 2010, the Company purchased interest rate caps (the “August 2010 Caps”) having an initial notional amount of $103.3 million with a three-month average LIBOR cap of 2.0%. If and when the three-month average LIBOR rate exceeds 2.0%, the LIBOR portion of interest owed by the Company would be capped at 2.0%. The initial notional amount was set to equal the projected outstanding balance under the Company’s term loan facility.

In July 2011, the Company purchased additional interest rate caps (the “July 2011 Caps”). The notional amounts of the July 2011 Caps, together with the notional amounts of the August 2010 Caps, were set so as not to exceed the outstanding balance of the Company’s term loan facility over a period that extends through March 31, 2014. The Company purchased the August 2010 Caps and July 2011 Caps for a combined total of approximately $0.7 million and initially designated the interest rate caps as cash flow hedges.

F-19

As of December 31, 2012, the Company held interest rate caps as follows (amounts in thousands):

			Notional Amounts
Payment Date	Cap Rate		August 2010 Caps		July 2011 Caps		Total
March 29, 2013	2.0	%	$	66,675	$	18,250	$	84,925
June 28, 2013	2.0	%	$	—	$	63,175	$	63,175
September 30, 2013	2.0	%	$	—	$	62,475	$	62,475
December 31, 2013	2.0	%	$	—	$	61,775	$	61,775
March 31, 2014	2.0	%	$	—	$	61,075	$	61,075

These interest rate caps were initially designated as cash flow hedges, and accordingly, the effective portion of the change in fair value of these interest rate caps was recognized in other comprehensive income in the Company’s consolidated financial statements. Unrealized gains and losses included in accumulated other comprehensive income were then reclassified into earnings as each interest rate cap settled on the contractual payment dates.

However, as a result of the First Amendment and the conversion of the outstanding balance of the term loan to a revolving line of credit indebtedness, the interest rate caps no longer qualify for hedge accounting treatment. With hedge accounting treatment no longer available for the interest rate caps, the amounts included in accumulated other comprehensive income up through the date of the First Amendment ($0.4 million), will instead be amortized ratably over the contractual terms of the interest rate caps. Changes in fair value of the interest rate caps following the date of the First Amendment date, which was less than $0.1 million, have been recognized in earnings.

Facility Lease Obligation

In 2001, the Company sold its facilities, located in Stafford, Texas. Simultaneously with the sale, the Company entered into a non-cancelable twelve-year lease with the purchaser of the property. Because the Company retained a continuing involvement in the property that precluded sale-leaseback treatment for financial accounting purposes, the sale-leaseback transaction was accounted for as a financing transaction.

In June 2005, the owner sold the facilities to two parties, which were unrelated to each other as well as unrelated to the seller. In conjunction with the sale of the facilities, the Company entered into two separate lease arrangements for each of the facilities with the new owners. One lease, which was classified as an operating lease, has a twelve-year lease term. The second lease continues to be accounted for as a financing transaction due to the Company’s continuing involvement in the property as a lessee, and has a ten-year lease term. The Company recorded the commitment under the second lease as a $5.5 million lease obligation at an implicit rate of 11.7% per annum, of which $2.3 million was outstanding at December 31, 2012. Both leases have renewal options allowing the Company to extend the leases for up to an additional twenty-year term, which the Company does not expect to renew.

Equipment Capital Leases

The Company has entered into capital leases that are due in installments for the purpose of financing the purchase of computer equipment through 2015. Interest accrues under these leases at rates of up to 6.0% per annum, and the leases are collateralized by liens on the computer equipment. The assets are amortized over the lesser of their related lease terms or their estimated productive lives and such charges are reflected within depreciation expense.

A summary of future principal obligations under long-term debt and equipment capital lease obligations are as follows (in thousands):

Years Ended December 31,	Long-Term Debt		Capital  Lease Obligations
2013	$	832	$	2,664
2014	966		2,343
2015	97,786		737
Total	$	99,584	$	5,744

F-20

(12)    Cumulative Convertible Preferred Stock

During 2005, the Company entered into an Agreement with Fletcher International, Ltd. (this Agreement, as amended, is referred to as the “Fletcher Agreement”) and issued to Fletcher 30,000 shares of Series D-1 Cumulative Convertible Preferred Stock (“Series D-1 Preferred Stock”) in a privately-negotiated transaction, receiving $29.8 million in net proceeds. The Fletcher Agreement also provided to Fletcher an option to purchase up to an additional 40,000 shares of additional series of preferred stock from time to time, with each series having a conversion price that would be equal to 122% of an average daily volume-weighted market price of the Company’s common stock over a trailing period of days at the time of issuance of that series. In 2007 and 2008, Fletcher exercised this option and purchased 5,000 shares of Series D-2 Cumulative Convertible Preferred Stock (“Series D-2 Preferred Stock”) for $5.0 million (in December 2007) and the remaining 35,000 shares of Series D-3 Cumulative Convertible Preferred Stock (“Series D-3 Preferred Stock”) for $35.0 million (in February 2008). The shares of Series D-1 Preferred Stock, Series D-2 Preferred Stock and Series D-3 Preferred Stock are sometimes referred to herein as the “Series D Preferred Stock.”

Dividends on the shares of Series D Preferred Stock must be paid in cash on a quarterly basis. Dividends are payable at a rate equal to the greater of (i) 5.0% per annum or (ii) the three month LIBOR rate on the last day of the immediately preceding calendar quarter plus 2.5% per annum. The Series D Preferred Stock dividend rate was 5.0% at December 31, 2012.

Under the Fletcher Agreement, if a 20-day volume-weighted average trading price per share of the Company’s common stock fell below $4.4517 (the “Minimum Price”), the Company was required to deliver a notice (the “Reset Notice”) to Fletcher. On November 28, 2008, the volume-weighted average trading price per share of the Company’s common stock on the New York Stock Exchange for the previous 20 trading days was calculated to be $4.328, and the Company delivered the Reset Notice to Fletcher in accordance with the terms of the Fletcher Agreement. In the Reset Notice, the Company elected to reset the conversion prices for the Series D Preferred Stock to the Minimum Price ($4.4517 per share), and Fletcher’s rights to redeem the Series D Preferred Stock were terminated. The adjusted conversion price resulting from this election was effective on November 28, 2008.

In addition, under the Fletcher Agreement, the aggregate number of shares of common stock issued or issuable to Fletcher upon conversion or redemption of, or as dividends paid on, the Series D Preferred Stock could not exceed a designated maximum number of shares (the “Maximum Number”), and such Maximum Number could be increased by Fletcher providing the Company with a 65-day notice of increase, but under no circumstance could the total number of shares of common stock issued or issuable to Fletcher with respect to the Series D Preferred Stock ever exceed 15,724,306 shares. The Fletcher Agreement had designated 7,669,434 shares as the original Maximum Number. In November 2008, Fletcher delivered a notice to the Company to increase the Maximum Number to 9,669,434 shares, effective February 1, 2009. On November 8, 2010, Fletcher delivered a notice to the Company to increase the Maximum Number to the full 15,724,306 shares, effective January 12, 2011.

On April 8, 2010, Fletcher converted 8,000 of its shares of the outstanding Series D-1 Preferred Stock and all of the outstanding 35,000 shares of the Series D-3 Preferred Stock into a total of 9,659,231 shares of the Company’s common stock. The conversion price for these shares was $4.4517 per share, in accordance with the terms of these series of preferred stock. Until June 2012, Fletcher owned 22,000 shares of the Series D-1 Preferred Stock and 5,000 shares of the Series D-2 Preferred Stock. As a result of Fletcher’s delivery of its notice to increase the Maximum Number to the full 15,724,306 shares in November 2010, under the terms of the Fletcher Agreement, Fletcher’s remaining 27,000 shares of Series D Preferred Stock were convertible into 6,065,075 shares of the Company’s common stock. The conversion prices and number of shares of common stock to be acquired upon conversion are also subject to customary anti-dilution adjustments.

In June 2012, Fletcher filed a voluntary petition for relief under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of New York. All of the shares of Series D Preferred Stock, which had been pledged by Fletcher to secure certain indebtedness, were sold by the pledgee to an affiliate of D.E. Shaw & Co., Inc. in June 2012.

(13)    Stockholders’ Equity and Stock-Based Compensation

Stock Option Plans

The Company has adopted stock option plans for eligible employees, directors, and consultants, which provide for the granting of options to purchase shares of common stock. As of December 31, 2012, there were 7,928,350 outstanding options under the Company’s stock option plans, and 2,938,928 shares available for future grant and issuance.

The options under these plans generally vest in equal annual installments over a four-year period and have a term of ten years. These options are typically granted with an exercise price per share equal to or greater than the current market price and, upon exercise, are issued from the Company’s unissued common shares. In August 2006, the Compensation Committee of the Board of Directors of the Company approved fixed pre-established quarterly grant dates for all future grants of options.

F-21

Transactions under the stock option plans are summarized as follows:

	Option Price per Share	Outstanding		Vested		Available for Grant
January 1, 2010	$1.07-$16.39	7,766,188		5,042,682		410,873
Increase in shares authorized	—	—		—		2,500,000
Granted	3.42-7.19	1,249,900		—		(1,249,900	)
Vested	—	—		1,370,897		—
Exercised	1.07-7.31	(323,610	)	(323,610	)	—
Cancelled/forfeited	1.07-16.12	(970,686	)	(700,561	)	674,363
Restricted stock granted out of option plans	—	—		—		(762,680	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		76,044
December 31, 2010	2.49-16.39	7,721,792		5,389,408		1,648,700
Increase in shares authorized	—	—		—		5,000,000
Granted	5.81-10.09	1,559,400		—		(1,559,400	)
Vested	—	—		851,222		—
Exercised	2.49-11.51	(2,145,792	)	(2,145,792	)	—
Cancelled/forfeited	3.00-15.43	(344,100	)	(250,300	)	262,513
Restricted stock granted out of option plans	—	—		—		(651,661	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		93,488
December 31, 2011	2.49-16.39	6,791,300		3,844,538		4,793,640
Granted	5.96-7.16	1,544,000		—		(1,544,000	)
Vested	—	—		1,060,275		—
Exercised	2.49-7.76	(194,410	)	(194,410	)	—
Cancelled/forfeited	2.49-15.43	(212,540	)	(119,165	)	127,125
Restricted stock granted out of option plans	—	—		—		(667,000	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		229,163
December 31, 2012	$2.80-$16.39	7,928,350		4,591,238		2,938,928

Stock options outstanding at December 31, 2012 are summarized as follows:

Option Price per Share	Outstanding	Weighted Average Exercise Price of Outstanding Options		Weighted Average Remaining Contract Life	Vested	Weighted Average  Exercise Price of Vested Options
$2.80 - $4.58	1,400,175	$	3.36	6.1	1,258,425	$	3.36
4.90 - 7.45	4,783,225	$	6.30	8.1	1,606,613	$	6.31
7.76 - 13.29	824,500	$	9.96	3.6	805,750	$	9.96
14.03 - 16.39	920,450	$	15.22	5.0	920,450	$	15.22
Totals	7,928,350	$	7.19	6.9	4,591,238	$	7.98

F-22

Additional information related to the Company’s stock options is as follows:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Contractual Life in Years	Aggregate Intrinsic Value (000’s)
Total outstanding at January 1, 2012	6,791,300		$	7.42			7.1
Options granted	1,544,000		$	6.05	$	3.54
Options exercised	(194,410	)	$	4.15
Options cancelled	(93,375	)	$	5.98
Options forfeited	(119,165	)	$	10.29
Total outstanding at December 31, 2012	7,928,350		$	7.19			6.9	$	6,510
Options exercisable and vested at December 31, 2012	4,591,238		$	7.98			5.4	$	4,664

The total intrinsic value of options exercised during 2012, 2011, and 2010 was $0.6 million, $13.3 million and $0.9 million, respectively. Cash received from option exercises under all share-based payment arrangements for 2012, 2011, and 2010 was $0.8 million, $13.1 million and $1.1 million, respectively. The weighted average grant date fair value for stock option awards granted during 2012, 2011, and 2010 was $3.54, $4.00, and $3.81 per share, respectively.

Restricted Stock and Restricted Stock Unit Plans

The Company has issued restricted stock and restricted stock units under the Company’s 2004 Long-Term Incentive Plan and other applicable plans. Restricted stock units are awards that obligate the Company to issue a specific number of shares of common stock in the future if continued service vesting requirements are met. Non-forfeitable ownership of the common stock will vest over a period as determined by the Company in its sole discretion, generally in equal annual installments over a three-year period. Shares of restricted stock awarded may not be sold, assigned, transferred, pledged or otherwise encumbered by the grantee during the vesting period.

The status of the Company’s restricted stock and restricted stock unit awards for 2012 is as follows:

	Number of  Shares/Units
Total nonvested at January 1, 2012	1,154,795
Granted	667,000
Vested	(764,704	)
Forfeited	(23,644	)
Total nonvested at December 31, 2012	1,033,447

At December 31, 2012, the intrinsic value of restricted stock and restricted stock unit awards was approximately $6.7 million. The weighted average grant date fair value for restricted stock and restricted stock unit awards granted during 2012, 2011, and 2010 was $6.05, $6.34, and $6.30 per share, respectively. The total fair value of shares vested during 2012, 2011, and 2010 was $4.6 million, $3.3 million, and $3.3 million, respectively.

Employee Stock Purchase Plan

In June 2010, the Company adopted an Employee Stock Purchase Plan (“ESPP”) to replace the prior ESPP, which terminated on December 31, 2008. The ESPP allows all eligible employees to authorize payroll deductions at a rate of 1% to 10% of base compensation (or a fixed amount per pay period) for the purchase of the Company’s common stock. Each participant is limited to purchase no more than 500 shares per offering period or 1,000 shares annually. Additionally, no participant may purchase shares in any calendar year that exceeds $10,000 in fair market value based on the fair market value of the stock on the offering commencement date. The purchase price of the common stock is the lesser of 85% of the closing price on the first day of the applicable offering period (or most recently preceding trading day) or 85% of the closing price on the last day of the offering period (or most recently preceding trading day). Each offering period is six months and commences on February 1 and August 1 of each year. The ESPP is considered a compensatory plan under ASC 718, and the Company recorded compensation expense of approximately $0.3 million and $0.3 million and $0.0 million during 2012, 2011 and 2010, respectively. The expense represents the estimated fair value of the look-back purchase option. The fair value was determined using the Black-Scholes option pricing model and was recognized over the purchase period. The total number of shares of common stock authorized and available for issuance under ESPP is 1,265,311. The maximum number of shares of common stock that may be purchased for each offering period is 100,000 (200,000 annually).

F-23

Stock Appreciation Rights Plan

The Company has adopted a stock appreciation rights plan which provides for the award of stock appreciation rights (“SARs”) to directors and selected key employees and consultants. The awards under this plan are subject to the terms and conditions set forth in agreements between the Company and the holders. The exercise price per SAR is not to be less than one hundred percent of the fair market value of a share of common stock on the date of grant of the SAR. The term of each SAR shall not exceed ten years from the grant date. Upon exercise of a SAR, the holder shall receive a cash payment in an amount equal to the spread specified in the SAR agreement for which the SAR is being exercised. In no event will any shares of common stock be issued, transferred or otherwise distributed under the plan.

As of December 31, 2012, the Company had outstanding 140,000 SAR awards to one individual with an exercise price of $3.00. The Company recorded less than $0.1 million, $0.3 million and less than $0.1 million, respectively, of share-based compensation expense during 2012, 2011 and 2010 related to employee stock appreciation rights. Pursuant to ASC 718, the stock appreciation rights are considered liability awards and as such, these amounts are accrued in the liability section of the balance sheet.

Valuation Assumptions

The Company calculated the fair value of each stock option on the date of grant using the Black-Scholes option pricing model. The following assumptions were used for each respective period:

	Years Ended December 31,
	2012		2011		2010
Risk-free interest rates	0.7% – 1.0%		1.1% – 1.9%		1.5% – 2.5%
Expected lives (in years)	5.5		5.5		5.5
Expected dividend yield	—	%	—	%	—	%
Expected volatility	67.8% – 72.2%		65.9% – 80.2%		67.4% – 71.6%

The computation of expected volatility during 2012, 2011 and 2010 was based on an equally weighted combination of historical volatility and market-based implied volatility. Historical volatility was calculated from historical data for a period of time approximately equal to the expected term of the option award, starting from the date of grant. Market-based implied volatility was derived from traded options on the Company’s common stock having a term of six months. The Company’s computation of expected life in 2012, 2011 and 2010 was determined based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards, vesting schedules, and expectations of future employee behavior. The risk-free interest rate assumption is based upon the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option.

Stock-based Compensation Expense

The following table summarizes stock-based compensation expense for the years ended December 31, 2012, 2011 and 2010 as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Stock-based compensation expense	$	6,598		$	6,344		$	8,147
Tax benefit related thereto	(2,056		)	(1,976		)	(2,633		)
Stock-based compensation expense, net of tax	$	4,542		$	4,368		$	5,514

(14) Other Income (Expense)

A summary of other income (expense) is as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Gain on legal settlements, net (Note 21)	$	20,895		$	—		$	24,500
Loss on disposition of land division (Note 15)	—			—			(38,115		)
Fair value adjustment of warrant (Note 15)	—			—			12,788
Write-down of investments (Note 19)	(556		)	(1,312		)	(7,650		)
Other income (expense)	(3,215		)	(2,135		)	228
Total other income (expense)	$	17,124		$	(3,447	)	$	(8,249	)

F-24

(15)    Formation of INOVA Geophysical and Related Financing Transactions

On March 25, 2010, the Company completed the transactions contemplated under two definitive agreements relating to its proposed joint venture and related transactions with BGP:

• A Stock Purchase Agreement with BGP dated as of March 19, 2010 (the “Stock Purchase Agreement”), under which ION agreed to sell 23,789,536 shares of ION’s common stock to BGP; and

• A Share Purchase Agreement with BGP dated as of March 24, 2010 (the “Share Purchase Agreement”), under which ION agreed to sell to BGP a 51% equity interest in INOVA Geophysical, thereby forming the joint venture with BGP.

The transactions under the Stock Purchase Agreement and the Share Purchase Agreement had been contemplated under the terms of a binding Term Sheet (the “Term Sheet”) dated as of October 23, 2009 between ION and BGP.

Proceeds from the Sales of ION Common Stock and Equity Interests in INOVA Geophysical

As provided in the Stock Purchase Agreement, on March 25, 2010, ION issued to BGP 23,789,536 shares of ION’s common stock in a privately-negotiated transaction at an effective purchase price of $2.80 per share. The $2.80 price per share had been agreed to by the parties in the Term Sheet.

The 23,789,536 shares of ION common stock issued by ION to BGP consisted of (i) 10,204,082 shares acquired upon BGP’s conversion of the approximately $28.6 million principal balance of indebtedness outstanding under a Convertible Promissory Note dated as of October 23, 2009 made by the Company under its then-current credit facility (the “Domestic Convertible Note”) to the order of Bank of China, New York Branch (“Bank of China”), that the Bank of China assigned to BGP in March 2010, and (ii) 13,585,454 shares that BGP purchased for $2.80 cash per share under the Stock Purchase Agreement, resulting in total gross cash proceeds to ION from this sale of approximately $38.0 million.

In October 2009, ION issued to BGP a warrant (the “Warrant”) to purchase shares of ION common stock. BGP elected not to exercise the Warrant and, on March 25, 2010, BGP terminated the Warrant and surrendered it to ION. After giving effect to the issuance of the total 23,789,536 shares of common stock of ION, BGP beneficially owned as of March 25, 2010, approximately 16.6% of the outstanding shares of ION common stock. As of December 31, 2012, BGP beneficially owns approximately 15.2% of ION Common Stock.

As part of the re-financing of the Company’s debt, the Company, contemporaneously with the formation of INOVA Geophysical, entered into a new credit facility, which provided the Company with approximately $106.3 million under a new five-year term loan and approximately $100.0 million under a new revolving line of credit (the “Credit Facility”). In connection with the approximately $38.0 million in cash received from BGP for BGP’s purchase of 13,585,454 shares of ION common stock, the Company borrowed approximately $191.3 million in new borrowings under the new Credit Facility, consisting of approximately $106.3 million under a new five-year term loan and approximately $85.0 million under a new revolving line of credit. These funds, along with certain cash on hand, were applied to repay a total of approximately $226.0 million in existing indebtedness.

ION then applied a portion of the $108.5 million in cash proceeds it received for BGP’s purchase of the 51% equity interest in INOVA Geophysical (see “— Formation of ION Geophysical” below) to repay the $85.0 million of revolving loans that ION had borrowed to pay off the revolving indebtedness under ION’s prior bank senior credit facility.

In connection with the Stock Purchase Agreement transactions, the Company entered into an Investor Rights Agreement with BGP that provides that, among other items:

• for so long as BGP owns as least 10% of the Company’s outstanding shares of common stock, BGP will have the right to nominate one director to serve on the Board of Directors;

• subject to customary exceptions, BGP will have certain pre-emptive rights to subscribe for a number of shares of the Company’s common stock or other securities that the Company is then offering as may be necessary to retain BGP’s proportionate ownership of common stock that exists before that issuance; and

• BGP will have certain demand and piggyback registration rights with respect to resales of its shares.

Formation of INOVA Geophysical

On March 25, 2010, ION and BGP formed the INOVA Geophysical joint venture pursuant to the Share Purchase Agreement. The assets of each party contributed to the joint venture included land seismic recording systems, inventory, certain intellectual property rights and contract rights necessary to or principally used in the conduct or operation of the land equipment businesses as conducted or operated by BGP or ION prior to closing. Under the Share Purchase Agreement, the Company sold BGP a 51% equity interest in INOVA Geophysical for total consideration of $108.5 million cash ($99.8 million net of fees and contributed cash balances) and BGP’s transfer to the Company of a 49% equity interest in a Chinese subsidiary that held land

F-25

seismic equipment assets and related liabilities. The Company and BGP then contributed their respective interests in the Chinese subsidiary to INOVA Geophysical.

Accounting Impact to the Formation of INOVA Geophysical and Related Financing Transactions

At the closing of the joint venture, the Company recorded a loss on disposition of its land division of approximately $38.1 million in 2010. The following components comprise this loss on disposition:

• The Company received cash proceeds from BGP of $99.8 million, net of fees and contributed cash balances, which were part of the disposed land divisions contributed to INOVA Geophysical.

• The Company retained a 49% interest in INOVA Geophysical, which was recorded at its fair value of $119.0 million. The fair value was determined on a discounted cash flow utilizing Level 3 inputs, with the main drivers in the calculation being INOVA Geophysical’s operational five-year forecast, which included revenues, operating expenses and capital expenditures. The Company corroborated its discounted cash flow analysis with a fair value analysis of the cash and other assets contributed by BGP for its 51% interest in INOVA Geophysical.

• The Company deconsolidated $221.7 million of net assets associated with its land division.

• The Company recognized $21.2 million of accumulated foreign currency translation losses, primarily related to its Canada land operations.

• The Company recognized $7.0 million of expense resulting from the sale of ION common stock to BGP at a discount to market under BGP’s equity purchase commitment as an inducement for BGP to enter into the transaction.

• The Company recognized $5.0 million of expense related to its permanently ceasing the use of certain leased facilities previously occupied by its land division. See further discussion at Note 22 “— Restructuring Activities”.

• The Company recognized $2.0 million of other expenses associated with the formation of INOVA Geophysical.

The following represents the impact of the other related financing transactions in the first quarter of 2010:

• The Company recorded a non-cash fair value adjustment of $12.8 million, reflecting the decrease in the fair value of the Warrant issued to BGP in October 2009, from January 1, 2010 through March 25, 2010, the date of the formation of INOVA Geophysical. At that date, the remaining $32.0 million liability representing the Warrant’s fair value was reclassified to additional paid-in-capital. The fair value of the Warrant was based on Level 2 inputs, using a Black-Scholes model. The key inputs for the Black-Scholes model included the current market price of the Company’s common stock, the yield on the common stock dividend payments 0%, risk-free interest rates, the expected term (March 2010) and the Company stock’s historical and implied volatility.

• The Company recognized in interest expense the remaining non-cash debt discount of $8.7 million, which was associated with the Company’s execution and delivery of the Convertible Notes to BGP in October 2009.

• As part of the repayment of the previous revolving line of credit and term loan, the Company wrote-off to interest expense, $10.1 million of unamortized debt issuance costs.

(16)    Income Taxes

The sources of income (loss) before income taxes are as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Domestic	$	34,633	$	12,674	$	(55,547	)
Foreign	52,050		22,028		45,651
Total	$	86,683	$	34,702	$	(9,896	)

F-26

Components of income taxes are as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Current:
Federal	$	873		$	6,594		$	(3,489	)
State and local	192			493			665
Foreign	19,106			11,180			7,559
Deferred:
Federal	3,822			(4,893		)	21,665
Foreign	(136		)	(3,238		)	542
Total income tax expense	$	23,857		$	10,136		$	26,942

A reconciliation of the expected income tax expense on income (loss) before income taxes using the statutory federal income tax rate of 35% for 2012, 2011 and 2010 to income tax expense is as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Expected income tax expense (benefit) at 35%	$	30,339		$	12,146		$	(3,464	)
Foreign tax rate differential	(5,404		)	(7,858		)	(11,914		)
Foreign tax differences	4,897			(2,511		)	—
Formation of INOVA Geophysical	—			—			10,507
Nondeductible financings	—			—			1,082
State and local taxes	192			493			665
Nondeductible expenses	47			1,091			492
Deferred tax asset valuation allowance:
Deferred tax asset valuation allowance on formation of INOVA Geophysical	—			—			20,213
Deferred tax asset valuation allowance on equity in losses of INOVA Geophysical	(104		)	8,002			8,303
Deferred tax asset valuation allowance on write-down of investments	195			459			2,677
Deferred tax asset valuation allowance on operations	(6,305		)	(1,686		)	(1,619		)
Total income tax expense	$	23,857		$	10,136		$	26,942

F-27

The tax effects of the cumulative temporary differences resulting in the net deferred income tax asset (liability) are as follows (in thousands):

	December 31,
	2012			2011
Current deferred:
Deferred income tax assets:
Accrued expenses	$	11,417		$	3,701
Allowance accounts	5,057			3,900
Inventory	302			457
Total current deferred income tax asset	16,776			8,058
Valuation allowance	(10,454		)	(6,148		)
Net current deferred income tax asset	6,322			1,910
Deferred income tax liabilities:
Unbilled receivables	(26,863		)	(7,592		)
Net current deferred income tax liability	$	(20,541	)	$	(5,682	)
Non-current deferred:
Deferred income tax assets:
Net operating loss carryforward	$	7,227		$	6,598
Capital loss carryforward	19,919			19,005
Equity method investment	33,305			33,409
Cost method investments	4,037			3,843
Basis in identified intangibles	4,852			3,606
Basis in research and development	3,196			2,045
Basis in property, plant and equipment	(2,387		)	1,234
Tax credit carryforwards and other	10,387			10,386
Total non-current deferred income tax asset	80,536			80,126
Valuation allowance	(52,807		)	(63,327		)
Net non-current deferred income tax asset	$	27,729		$	16,799

In 2002, the Company established a valuation allowance for substantially all of its deferred tax assets. Since that time, the Company has continued to record a valuation allowance. In 2012, the Company released approximately $6.6 million of valuation allowance associated with its U.S. deferred assets. Because, among other reasons, the Company was no longer in a recent cumulative loss position and its projections indicate that these deferred tax assets will likely be realized. However, an additional valuation allowance was established on certain U.S. deferred tax assets related to capital losses. The valuation allowance was calculated in accordance with the provisions of ASC 740, “Income Taxes,” which requires that a valuation allowance be established or maintained when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. The Company will continue to record a valuation allowance for capital losses or basis differences that will create capital losses, which are primarily related to our investment in INOVA Geophysical, until there is sufficient evidence to warrant reversal. In the event the Company’s expectations of future operating results change, an additional valuation allowance may be required to be established on the Company’s existing unreserved net U.S. deferred tax assets.

At December 31, 2012, the Company had a net operating loss in the U.S. of $3.6 million that will expire in 2032 and operating loss carry-forwards outside of the U.S. of approximately $23.0 million, the majority of which expires beyond 2027.

As of December 31, 2012, the Company has approximately $1.8 million of unrecognized tax benefits and does not expect to recognize any significant increases in unrecognized tax benefits during the next twelve-month period. As of December 31, 2012, all of this amount, if recognized, would affect the effective tax rate. Interest and penalties, if any, related to unrecognized tax benefits are recorded in income tax expense. For 2012, 2011 and 2010, the aggregate changes in the Company’s total gross amount of unrecognized tax benefits are summarized as follows (in thousands):

F-28

	Years Ended December 31,
	2012		2011		2010
Beginning balance	$	1,375	$	816	$	470
Increases in unrecognized tax benefits – prior year positions	—		—		—
Increases in unrecognized tax benefits – current year positions	459		559		346
Ending balance	$	1,834	$	1,375	$	816

The Company’s U.S. federal tax returns for 2007 and subsequent years remain subject to examination by tax authorities. The Company is no longer subject to IRS examination for periods prior to 2007, although carryforward attributes that were generated prior to 2007 may still be adjusted upon examination by the IRS if they either have been or will be used in a future period. In the Company’s foreign tax jurisdictions, tax returns for 2009 and subsequent years generally remain open to examination.

United States income taxes have not been provided on the cumulative undistributed earnings of the Company’s foreign subsidiaries in the amount of approximately $84.4 million as it is the Company’s intention to reinvest such earnings indefinitely. The Company’s U.S. operations are expected to be fully supported by existing cash balances and U.S.-generated cash flows. These foreign earnings could become subject to additional tax if remitted, or deemed remitted, to the United States as a dividend; however, it is not practicable to estimate the additional amount of taxes payable.

(17)    Supplemental Cash Flow Information and Non-cash Activity

Supplemental disclosure of cash flow information is as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Cash paid during the period for:
Interest	$	4,625	$	6,440	$	11,798
Income taxes	18,146		15,473		7,263
Non-cash items from investing and financing activities:
Transfer of inventory to seismic rental equipment	6,737		2,978		3,606
Purchase of computer equipment financed through capital leases	4,647		2,597		555
Sale of rental equipment financed with a note receivable	—		3,578		—
Exchange of receivable related to a business acquisition	—		2,000		—
Reduction in multi-client data library related to finalization of accrued liabilities	—		1,888		—
Expiration of BGP warrant	—		—		32,001
Conversion of BGP Domestic Convertible Note to equity	—		—		28,571
Investment in INOVA Geophysical	—		—		119,000
Exchange of Reservoir Exploration Technology receivables into shares	—		—		9,516
Investment in multi-client data library financed through trade payables	—		—		3,429

(18)    Operating Leases

Lessee.    The Company leases certain equipment, offices, and warehouse space under non-cancelable operating leases. Rental expense was $14.4 million, $16.7 million, and $15.5 million for 2012, 2011 and 2010, respectively.

A summary of future rental commitments over the next five years under non-cancelable operating leases is as follows (in thousands):

Years Ending December 31,
2013	$	8,641
2014	8,242
2015	7,955
2016	8,978
2017	8,900
Total	$	42,716

F-29

(19) Fair Value of Financial Instruments

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable, accrued multi-client data library royalties, investment in two convertible notes from a privately-owned U.S.-based technology company, interest rate caps, long-term debt and an investment in shares of RXT.

The carrying amounts of cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable and accrued multi-client data library royalties approximate fair value due to the highly liquid nature of these instruments.

The carrying amount of the Company’s long-term debt as of December 31, 2012 and December 31, 2011 was $105.3 million and $105.1 million, respectively, compared to fair value of $105.3 million and $106.5 million as of December 31, 2012 and December 31, 2011, respectively. The fair value of the long-term debt was calculated using a market approach based upon Level 3 inputs, including an estimated interest rate reflecting current market conditions.

The following table provides additional information related to assets and liabilities measured at fair value on a recurring basis at December 31, 2012 and 2011. The reference to level within the table relates to the level of inputs used to determine fair value, which the key inputs are then described below. The table (in thousands) is as follows:

	Level 1		Level 2		Level 3
As of December 31, 2012:
Investment in convertible notes	$	—	$	—	$	8,195
As of December 31, 2011:
Investment in convertible note	—		—		5,770
Investment in RXT shares	556		—		—

Investment in Convertible Notes. In May 2011, the Company purchased a convertible note from a privately-owned U.S.-based technology company. The original principal amount of the note is $6.5 million, and it bears interest at a rate of 4% per annum. In March 2012, the Company and the investee entered into an agreement for the Company to make available to the investee a credit facility in an amount of up to $4.0 million, for a term of one year. The credit facility allows for conversion of the outstanding balance of the promissory note under the credit facility into common shares of the investee. As of December 31, 2012, the investee had drawn $2.0 million under the available credit arrangement.

The Company performed a fair value analysis with respect to its investment in the convertible notes using a market approach based upon Level 3 inputs, including the terms and likelihood of an investment event and the time to conversion or repayment. As of December 31, 2012, the fair value of these investments was approximately $8.2 million, with $0.3 million of unrealized losses recorded in accumulated other comprehensive income.

Investment in RXT Shares. The Company performed a fair value analysis of its investment in RXT using a market approach based upon Level 1 inputs, utilizing quoted prices from active markets. As of December 31, 2011 the fair value of the shares was $0.6 million. During the fourth quarter of 2012, the shares again declined in value. The Company determined this decline to be other-than-temporary and therefore, wrote the shares fully off through earnings.

During 2011 and 2010, the Company determined that the declines in the fair value of this investment were other-than-temporary, which resulted in write-downs of this investment by recording charges to earnings of $1.3 million and $7.6 million, respectively.

(20) Benefit Plans

The Company has a 401(k) retirement savings plan, which covers substantially all employees. Employees may voluntarily contribute up to 60% of their compensation, as defined, to the plan. Effective June 1, 2000, the Company adopted a company matching contribution to the 401(k) plan. The Company matched the employee contribution at a rate of 50% of the first 6% of compensation contributed to the plan. In April 2009, the Company suspended its match to employee’s 401(k) plan contributions, but reinstated its matching contributions in April 2010. Company contributions to the plans were $1.4 million, $1.3 million, and $0.9 million, during 2012, 2011 and 2010, respectively.

(21)    Legal Matters

WesternGeco

In June 2009, WesternGeco L.L.C. (“WesternGeco”) filed a lawsuit against the Company in the United States District Court for the Southern District of Texas, Houston Division. In the lawsuit, styled WesternGeco L.L.C. v. ION Geophysical Corporation, WesternGeco alleged that the Company had infringed several method and apparatus claims contained in four of its United States patents regarding marine seismic streamer steering devices. WesternGeco sought unspecified monetary damages

F-30

and an injunction prohibiting the Company from making, using, selling, offering for sale or supplying any infringing products in the United States.

In June 2009, the Company filed an answer and counterclaims against WesternGeco, in which the Company denied that it had infringed WesternGeco’s patents and asserted that the WesternGeco patents were invalid or unenforceable. The Company also asserted that WesternGeco’s Q-Marine system, components and technology infringed upon a United States patent owned by the Company related to marine seismic streamer steering devices. In addition, the Company claimed that the lawsuit by WesternGeco was an illegal attempt by WesternGeco to control and restrict competition in the market for marine seismic surveys performed using laterally steerable streamers. In its counterclaims, the Company requested various remedies and relief, including a declaration that the WesternGeco patents were invalid or unenforceable, an injunction prohibiting WesternGeco from making, using, selling, offering for sale or supplying any infringing products in the United States, a declaration that the WesternGeco patents should be co-owned by the Company, and an award of unspecified monetary damages.

In June 2010, WesternGeco filed a lawsuit against various subsidiaries and affiliates of Fugro N.V. (“Fugro”), a seismic contractor customer of the Company, accusing Fugro of infringing the same United States patents regarding marine seismic streamer steering devices by planning to use certain equipment purchased from the Company on a survey located outside of U.S. territorial waters. The court approved the consolidation of the Fugro case with the case against the Company. Fugro filed a motion to dismiss the lawsuit, and in March 2011 the presiding judge granted Fugro’s motion to dismiss in part, on the basis that the alleged activities of Fugro would occur more than 12 miles from the U.S. coast and therefore are not actionable under U.S. patent infringement law.

In February 2012, the Court granted WesternGeco’s motions for summary judgment, dismissing the Company’s claims as plaintiff against WesternGeco for infringement, inventorship and inequitable conduct. In response to a Motion for Summary Judgment filed jointly by the Company and Fugro, the Court ruled in April 2012 that the Company did not directly infringe WesternGeco’s method patent claims. In a pre-trial ruling on June 29, 2012, the Court ruled that, if a particular patent claim of WesternGeco was held to be valid and enforceable at the upcoming trial, the Company’s DigiFIN^® lateral streamer control system, when combined with the Company’s lateral controller in the United States, would infringe one claim in one of WesternGeco’s asserted patents, U.S. Patent No. 7,293,520.

Trial began on July 23, 2012. During the trial, Fugro settled all claims asserted against it by WesternGeco and obtained a global license from WesternGeco. A verdict was returned by the jury on August 16, 2012, finding that the Company willfully infringed the claims contained in the four patents and awarding WesternGeco the sum of $105.9 million in damages, consisting of $12.5 million in reasonable royalty and $93.4 million in lost profits. The Company believes that the verdict is not consistent with applicable law or the facts or evidence in the case and, in September 2012, filed motions with the trial court to overturn all or portions of the verdict.

The ultimate outcome of the case in the trial court, and the content of the final judgment as a whole, rest with the presiding trial court judge, not the jury. The next step in the case is for the trial court judge to decide post-verdict motions filed by the parties and enter a judgment. The final judgment will determine the result of the trial prior to appeal. When he enters a judgment in the case, the judge can choose to follow the jury verdict or to take other actions, such as changing to a different result or ordering an entirely new trial. As of the filing date of this Annual Report on Form 10-K, the Court had not yet entered a judgment in the case.

If the Court enters a judgment that is adverse to the Company, the Company intends to appeal the judgment to the United States Court of Appeals for the Federal Circuit. WesternGeco would also have the right to elect to appeal any final judgment.

In rendering its verdict, the jury determined that the Company’s infringement was willful. Because the jury verdict indicated willfulness, the trial court judge will determine whether, in his independent judgment, the Company willfully infringed and he should declare this case to be “exceptional.” In order for the judge to find willful infringement and declare this case exceptional, WesternGeco must prove, by clear and convincing evidence, that the Company acted with objective recklessness and in bad faith, fraudulently or engaged in similar misconduct related to the case. If the judge finds willful infringement and declares this case to be exceptional, the judge has the discretion, but not the obligation, to enhance the damages amount, not to exceed a trebling of the final judgment damages award plus reasonable attorneys’ fees. The Company believes that, given its understanding and judgment of applicable law and the relevant facts and evidence in this case, and after considering the advice of counsel, it is unlikely that the Company will incur any additional loss as a result of the jury’s finding of willfulness.

Based on the Company’s understanding and judgment of applicable law and the facts and merits of this case, including appellate defenses, and after considering the advice of counsel, the Company has determined it is probable that, after exhaustion of all appeals, this lawsuit will result in a loss contingency to the Company in the amount of approximately $10 million, consisting of reasonable royalty damages, interest and court costs. The Company has adequately reserved for this loss contingency.

F-31

It is reasonably possible that the Company may not ultimately prevail in the litigation and appeals process and that the Company’s loss related to the lawsuit could exceed the amount currently accrued, up to the amount of the damages in the jury verdict plus interest and court costs, or even higher if the Court decides to enhance the damages as described above. However, the Company does not believe that a loss of this magnitude is probable. The Company’s assessment of its potential loss contingency may change in the future due to developments at the trial court or appellate court and other events, such as changes in applicable law, and such re-assessment could lead to the determination that no loss contingency is probable or that a greater loss contingency is probable, which could have a material effect on the Company’s financial statements.

As stated above, the Company intends to appeal the judgment to the United States Court of Appeals for the Federal Circuit if the trial court enters a judgment adverse to the Company. In order to appeal the judgment, the Company may be required to post an appeal bond for the full amount of damages entered in the judgment. In order to post and collateralize a bond of that size, the Company might need to utilize a combination of cash on hand, undrawn balances available under the revolving line of credit and possibly incur additional debt and/or equity financing. The posting and collateralization of such an appeal bond could have a possible adverse effect on the Company’s liquidity. If the Company is unable to post the appeal bond, the Company may be unable to stay enforcement of the judgment or appeal the case. At this time, the Company is unable to determine whether an appeal bond would be required or the amount of such an appeal bond. Similarly, the Company is unable to predict the timing of the final judgment being entered by the trial court or the timing of posting any required appeal bond.

Fletcher

In November 2009, Fletcher International Ltd. (“Fletcher”), the holder of the shares of the Company’s outstanding Series D Preferred Stock until June 2012, filed a lawsuit against the Company and certain of its directors in the Delaware Court of Chancery. In the lawsuit, styled Fletcher International, Ltd. v. ION Geophysical Corporation, et al, Fletcher alleged, among other things, that the Company violated Fletcher’s consent rights contained in the Series D Preferred Stock Certificates of Designation, by (a) the execution and delivery of a convertible promissory note to the Bank of China, New York Branch by one of our subsidiaries (incorporated in Luxembourg), in connection with a bridge loan funded in October 2009 by Bank of China, and (b) a Canadian subsidiary of the Company executing and delivering several promissory notes in 2008 in connection with the Company’s acquisition of ARAM Systems Ltd., Fletcher also alleged that the Company’s directors violated their fiduciary duties by allowing the subsidiaries to deliver the notes without Fletcher’s consent. In a Memorandum Opinion issued in May 2010 in response to a motion for partial summary judgment, the judge dismissed all of Fletcher’s claims against the named Company directors but also concluded that, because the bridge loan note executed by the Company’s Luxembourg subsidiary in 2009 was convertible into the Company’s common stock, Fletcher had the right to consent to the issuance of the note and that the Company had violated Fletcher’s consent rights by that subsidiary’s issuing the note without Fletcher’s consent. In March 2011, the judge dismissed certain additional claims asserted by Fletcher.

In May 2012, the judge ruled that Fletcher did not have the right to consent with respect to two promissory notes executed and delivered by the Canadian subsidiary in September 2008 in connection with the Company’s purchase of ARAM Systems Ltd., but that Fletcher did have the right to consent to the execution and delivery in December 2008 of a replacement promissory note in the principal amount of $35 million, and that the Company had violated Fletcher’s consent rights by the subsidiary’s executing and delivering the replacement promissory note without Fletcher’s consent.

In June 2012, Fletcher filed a voluntary petition for relief under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of New York. Fletcher’s shares of Series D Preferred Stock, which had been pledged by Fletcher to secure certain indebtedness, were sold by the pledgee to the affiliate of D.E. Shaw & Co., Inc. in June 2012. The Company does not believe that the acquisition of the shares by an affiliate of D. E. Shaw & Co., Inc. or the bankruptcy filing by Fletcher will have a material impact on Fletcher’s lawsuit against the Company.

The Company believes that the monetary damages suffered by Fletcher as a result of the Company’s subsidiaries executing and delivering the convertible note and the replacement note without Fletcher’s consent are nonexistent or nominal, and that the ultimate outcome of the lawsuit will not result in a material adverse effect on the Company’s financial condition or results of operations.

Sercel

In January 2010, the jury in a patent infringement lawsuit filed by the Company against seismic equipment provider Sercel, Inc. in the United States District Court for the Eastern District of Texas returned a verdict in the Company’s favor. In the lawsuit, styled Input/Output, Inc. et al v. Sercel, Inc., (5-6-cv-236), the Company alleged that Sercel’s 408, 428 and SeaRay digital seismic sensor units infringe the Company’s United States Patent No. 5,852,242, which is incorporated in the Company’s VectorSeis^® sensor technology. Products of the Company or INOVA Geophysical that are compatible with the VectorSeis technology include Scorpion^®, ARIES II^®, FireFly^®, Hawk^™ and VectorSeis Ocean seismic acquisition systems. The jury concluded that Sercel infringed the Company’s patent and that the Company’s patent was valid, and the jury awarded the Company $25.2 million in compensatory past damages. In response to post-verdict motions made by the parties, in September

F-32

2010, the presiding judge issued a series of rulings that (a) granted the Company’s motion for a permanent injunction to be issued prohibiting the manufacture, use or sale of the infringing Sercel products, (b) confirmed that the Company’s patent was valid, (c) confirmed that the jury’s finding of infringement was supported by the evidence and (d) disallowed $5.4 million of lost profits that were based on infringing products that were manufactured and delivered by Sercel outside of the United States, but were offered for sale by Sercel in the United States and involved underlying orders and payments received by Sercel in the United States. In addition, the judge concluded that the evidence supporting the jury’s finding that the Company was entitled to be awarded $9.0 million in lost profits associated with certain infringing pre-verdict marine sales by Sercel was too speculative and therefore disallowed that award of lost profits. As a result of the judge’s ruling, the Company was entitled to be awarded an additional amount of damages equal to a reasonable royalty on the infringing pre-verdict Sercel marine sales. After the Company learned that Sercel continued to make sales of infringing products after the January 2010 jury verdict was rendered, the Company filed motions with the court to seek additional compensatory damages for the post-verdict infringing sales and enhanced damages as a result of the willful nature of Sercel’s post-verdict infringement. In February 2011, the Court entered a final judgment and permanent injunction in the case. The final judgment awarded the Company $10.7 million in damages, plus interest, and the permanent injunction prohibits Sercel and parties acting in concert with Sercel from making, using, offering to sell, selling, or importing in the United States (which includes territorial waters of the United States) Sercel’s 408UL, 428XL and SeaRay digital sensor units, and all other products that are only colorably different from those products. Sercel and the Company appealed portions of the final judgment, and on February 17, 2012, the appellate court upheld the final judgment. In April 2012, Sercel paid the Company $12.0 million pursuant to the final judgment.

In its judgment, the Court also ordered that the additional damages to be paid by Sercel as a reasonable royalty on the infringing pre-verdict Sercel marine sales and the additional damages to be paid by Sercel resulting from post-verdict infringing sales would be determined in a separate proceeding to be conducted in the future. In December 2012, the Company and Sercel settled all remaining claims in exchange for $19.0 million and an agreement by Sercel to pay the Company royalties on future sales. Under this agreement, the Company has no continuing obligations.

Greatbatch

In 2002, the Company filed a lawsuit against operating subsidiaries of battery manufacturer Greatbatch, Inc., including its Electrochem division (collectively “Greatbatch”), in the 24th Judicial District Court for the Parish of Jefferson in the State of Louisiana. In the lawsuit, styled Input/Output, Inc. and I/O Marine Systems, Inc. v. Wilson Greatbatch Technologies, Inc., Wilson Greatbatch, Ltd. d/b/a Electrochem Lithium Batteries, and WGL Intermediate Holdings, Inc., Civil Action No. 578-881, Division “A”, the Company alleged that Greatbatch had fraudulently misappropriated the Company’s product designs and other trade secrets related to the batteries and battery pack used in the Company’s DigiBIRD^® marine towed streamer vertical control device and used the Company’s confidential information to manufacture and market competing batteries and battery packs. After a trial, on October 1, 2009 the jury concluded that Greatbatch had committed fraud, violated the Louisiana Unfair Trade Practices Act and breached a trust and nondisclosure agreement between Greatbatch and the Company, and awarded the Company approximately $21.7 million in compensatory damages. A judgment was entered consistent with the jury verdict. In December 2010, the Company and Greatbatch settled the lawsuit, pursuant to which Greatbatch paid the Company $25.0 million in full satisfaction of the judgment. Upon the cash receipt, the Company recorded a gain on legal settlement of $24.5 million, net of fees paid to attorneys, in 2010.

Other

The Company has been named in various other lawsuits or threatened actions that are incidental to its ordinary business. Litigation is inherently unpredictable. Any claims against the Company, whether meritorious or not, could be time-consuming, cause the Company to incur costs and expenses, require significant amounts of management time and result in the diversion of significant operational resources. The results of these lawsuits and actions cannot be predicted with certainty. Management currently believes that the ultimate resolution of these matters will not have a material adverse impact on the financial condition, results of operations or liquidity of the Company.

(22)    Restructuring Activities

Due to the formation of INOVA Geophysical, the Company consolidated certain of its Stafford, Texas-based operations, which resulted in the Company permanently ceasing to use certain leased facilities as of March 31, 2010. The Company determined that the fair value of its remaining costs to be incurred under its lease of these facilities was approximately $8.2 million. After considering all deferred items on the Company’s balance sheet associated with this lease, the Company recorded a charge to its loss on the disposition of its land equipment businesses of $5.0 million. As of December 31, 2011, the Company had a liability of $5.9 million. During 2012, the Company made cash payments of $1.2 million and accrued $0.4 million related to accretion expense, resulting in a remaining liability of $5.1 million as of December 31, 2012.

In 2011, the Company initiated a restructuring of its Sensor geophone operations in the Netherlands, which included reducing headcount at this location by approximately 30%. As of December 31, 2011, the Company accrued a liability of $2.4

F-33

million associated with severance costs for these employees and recorded the corresponding expense within general, administrative and other operating expenses for 2011. During 2012, the Company made cash severance payments of $2.3 million, resulting in a remaining liability of less than $0.1 million as of December 31, 2012.

(23)    Selected Quarterly Information — (Unaudited)

A summary of selected quarterly information is as follows (in thousands, except per share amounts):

	Three Months Ended
Year Ended December 31, 2012	March 31			June 30			September 30			December 31
Service revenues	$	66,634		$	72,844		$	93,023		$	122,082
Product revenues	45,076			32,370			43,300			50,988
Total net revenues	111,710			105,214			136,323			173,070
Gross profit	41,156			45,943			55,958			72,744
Income from operations	11,643			12,972			25,049			24,863
Interest expense, net	(1,518		)	(1,364		)	(1,237		)	(1,146		)
Equity in earnings (losses) of INOVA Geophysical	2,468			3,777			(1,684		)	(4,264		)
Other income (expense)	(686		)	895			(936		)	17,851
Income tax expense	3,445			4,184			6,037			10,191
Net income attributable to noncontrolling interests	113			281			42			53
Preferred stock dividends	338			338			338			338
Net income applicable to common shares	$	8,237		$	12,039		$	14,859		$	26,828
Net income per share:
Basic	$	0.05		$	0.08		$	0.10		$	0.17
Diluted	$	0.05		$	0.08		$	0.09		$	0.17

	Three Months Ended
Year Ended December 31, 2011	March 31			June 30			September 30			December 31
Service revenues	$	58,165		$	49,516		$	73,894		$	84,011
Product revenues	32,387			39,016			41,760			75,872
Total net revenues	90,552			88,532			115,654			159,883
Gross profit	31,139			33,631			44,058			64,617
Income from operations	6,071			8,800			18,496			33,428
Interest expense, net	(1,615		)	(1,187		)	(1,382		)	(1,600		)
Equity in losses of INOVA Geophysical	(860		)	(4,173		)	(4,811		)	(13,018		)
Other income (expense)	(2,999		)	497			199			(1,144		)
Income tax expense	147			1,085			3,484			5,420
Net income attributable to noncontrolling interests	25			44			34			105
Preferred stock dividends	338			338			338			338
Net income applicable to common shares	$	137		$	2,558		$	8,714		$	12,013
Net income per share:
Basic	$	—		$	0.02		$	0.06		$	0.08
Diluted	$	—		$	0.02		$	0.06		$	0.08

(24) Certain Relationships and Related Party Transactions

For 2012, 2011 and 2010, the Company recorded revenues from BGP of $13.7 million, $34.5 million and $16.9 million, respectively. A majority of the revenues from BGP for 2011 related to the sale of a twelve-streamer DigiSTREAMER system. Receivables due from BGP were $1.6 million and $15.2 million at December 31, 2012 and 2011, respectively. BGP owned approximately 15.2% (purchased in March 2010) of the Company’s outstanding common stock as of December 31, 2012. For 2012, the Company paid to BGP $2.0 million for seismic acquisition services provided on one of the Company’s new venture projects. At December 31, 2012, the Company owed BGP $9.3 million for unpaid services received for that project.

Until June 2012, the Company was a party to a support and transition agreement to provide INOVA Geophysical with certain administrative services including tax, legal, information technology, treasury, human resources, bookkeeping, facilities and marketing services. The terms of the arrangement provided for INOVA Geophysical to pay approximately $0.3 million per

F-34

month (beginning in April 2010) for services and to reimburse the Company for third-party and lease costs incurred by the Company directly related to the administrative support of INOVA Geophysical. The Company was paid $3.5 million under this arrangement in 2012. The term of the agreement was for two years and terminated on June 30, 2012.

Mr. James M. Lapeyre, Jr. is the Chairman of the Board on ION’s board of directors and a significant equity owner of Laitram, L.L.C. (Laitram), and he has served as president of Laitram and its predecessors since 1989. Laitram is a privately-owned, New Orleans-based manufacturer of food processing equipment and modular conveyor belts. Mr. Lapeyre and Laitram together owned approximately 6.4% of the Company’s outstanding common stock as of December 31, 2012.

The Company acquired DigiCourse, Inc., the Company’s marine positioning products business, from Laitram in 1998. In connection with that acquisition, the Company entered into a Continued Services Agreement with Laitram under which Laitram agreed to provide the Company certain bookkeeping, software, manufacturing, and maintenance services. Manufacturing services consist primarily of machining of parts for the Company’s marine positioning systems. The term of this agreement expired in September 2001 but the Company continues to operate under its terms. In addition, from time to time, when the Company has requested, the legal staff of Laitram has advised the Company on certain intellectual property matters with regard to the Company’s marine positioning systems. Under an amended lease of commercial property dated February 1, 2006, between Lapeyre Properties, L.L.C. (an affiliate of Laitram) and ION, the Company has leased certain office and warehouse space from Lapeyre Properties through January 2014, with the right to terminate the lease sooner upon 12 months’ notice. During 2012, the Company paid Laitram and its affiliates a total of approximately $4.1 million, which consisted of approximately $3.2 million for manufacturing services, $0.6 million for rent and other pass-through third party facilities charges, and $0.3 million for reimbursement for costs related to providing administrative and other back-office support services in connection with the Company’s Louisiana marine operations. For the 2011 and 2010 fiscal years, the Company paid Laitram and its affiliates a total of approximately $6.3 million and $3.1 million, respectively, for these services. In the opinion of the Company’s management, the terms of these services are fair and reasonable and as favorable to the Company as those that could have been obtained from unrelated third parties at the time of their performance.

(25) Subsequent Events

In February 2013, the Company purchased a 30% interest in the joint venture, GeoRXT B.V. (“GeoRXT”), from RXT for $1.5 million. GeoRXT is headquartered in Rio de Janeiro, Brazil, and specializes in seismic acquisition using ocean bottom cables. Additionally, the Company provided an $8.0 million loan to GeoRXT, which includes a guaranty by GeoRXT’s parent. GeoRXT is obligated to repay this loan to the Company on or before May 10, 2013.

F-35

SCHEDULE II

ION GEOPHYSICAL CORPORATION AND SUBSIDIARIES

VALUATION AND QUALIFYING ACCOUNTS

Year Ended December 31, 2010	Balance at Beginning of Year		Disposed Reserves During the Period			Charged (Credited) to Costs and Expenses		Deductions			Balance at End of Year
	(In thousands)
Allowances for doubtful accounts	$	5,674	$	(4,273	)	$	1,689	$	(2,245	)	$	845
Allowances for doubtful notes	71		(71		)	—		—			—
Warranty	5,088		(3,821		)	443		(926		)	784
Valuation allowance on deferred tax assets	33,126		(15,897		)	45,471		—			62,700
Excess and obsolete inventory	30,618		(15,819		)	1,587		(3,510		)	12,876

Year Ended December 31, 2011	Balance at Beginning of Year		Charged (Credited) to Costs and Expenses		Deductions			Balance at End of Year
	(In thousands)
Allowances for doubtful accounts	$	845	$	597	$	(244	)	$	1,198
Warranty	784		1,165		(1,234		)	715
Valuation allowance on deferred tax assets	62,700		6,775		—			69,475
Excess and obsolete inventory	12,876		567		(406		)	13,037

Year Ended December 31, 2012	Balance at Beginning of Year		Charged (Credited) to Costs and Expenses			Deductions			Balance at End of Year
	(In thousands)
Allowances for doubtful accounts	$	1,198	$	5,811		$	(298	)	$	6,711
Warranty	715		1,258			(932		)	1,041
Valuation allowance on deferred tax assets	69,475		(6,214		)	—			63,261
Excess and obsolete inventory	13,037		1,326			(124		)	14,239

S-1

EXHIBIT INDEX

3.1	—	Restated Certificate of Incorporation dated September 24, 2007 filed on September 24, 2007 as Exhibit 3.4 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
3.2	—	Amended and Restated Bylaws of ION Geophysical Corporation filed on September 24, 2007 as Exhibit 3.5 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
3.3	—	Certificate of Ownership and Merger merging ION Geophysical Corporation with and into Input/Output, Inc. dated September 21, 2007, filed on September 24, 2007 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.1	—	Certificate of Rights and Designations of Series D-1 Cumulative Convertible Preferred Stock, dated February 16, 2005 and filed on February 17, 2005 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.2	—	Certificate of Elimination of Series B Preferred Stock dated September 24, 2007, filed on September 24, 2007 as Exhibit 3.2 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.3	—	Certificate of Elimination of Series C Preferred Stock dated September 24, 2007, filed on September 24, 2007 as Exhibit 3.3 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.4	—	Certificate of Designation of Series D-2 Cumulative Convertible Preferred Stock dated December 6, 2007, filed on December 6, 2007 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.5	—	Certificate of Designations of Series A Junior Participating Preferred Stock of ION Geophysical Corporation effective as of December 31, 2008, filed on January 5, 2009 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
4.6	—	Form of Senior Indenture, filed on December 19, 2008 as Exhibit 4.3 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.7	—	Form of Senior Note, filed on December 19, 2008 as Exhibit 4.4 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.8	—	Form of Subordinated Indenture, filed on December 19, 2008 as Exhibit 4.5 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.9	—	Form of Subordinated Note, filed on December 19, 2008 as Exhibit 4.6 to the Company’s Registration Statement on Form S-3 (Registration No. 333-156362) and incorporated herein by reference.
4.10	—	Certificate of Elimination of Series A Junior Participating Preferred Stock dated February 10, 2012, filed on February 13, 2012 as Exhibit 3.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.1	—	Amended and Restated 1990 Stock Option Plan, filed on June 9, 1999 as Exhibit 4.2 to the Company’s Registration Statement on Form S-8 (Registration No. 333-80299), and incorporated herein by reference.
10.2	—	Office and Industrial/Commercial Lease dated June 2005 by and between Stafford Office Park II, LP as Landlord and Input/Output, Inc. as Tenant, filed on March 31, 2006 as Exhibit 10.2 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, and incorporated herein by reference.
10.3	—	Office and Industrial/Commercial Lease dated June 2005 by and between Stafford Office Park District as Landlord and Input/Output, Inc. as Tenant, filed on March 31, 2006 as Exhibit 10.3 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, and incorporated herein by reference.
**10.4	—	Input/Output, Inc. Amended and Restated 1996 Non-Employee Director Stock Option Plan, filed on June 9, 1999 as Exhibit 4.3 to the Company’s Registration Statement on Form S-8 (Registration No. 333-80299), and incorporated herein by reference.
**10.5	—	Amendment No. 1 to the Input/Output, Inc. Amended and Restated 1996 Non-Employee Director Stock Option Plan dated September 13, 1999 filed on November 14, 1999 as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the fiscal quarter ended August 31, 1999 and incorporated herein by reference.

**10.6	—	Input/Output, Inc. Employee Stock Purchase Plan, filed on March 28, 1997 as Exhibit 4.4 to the Company’s Registration Statement on Form S-8 (Registration No. 333-24125), and incorporated herein by reference.
**10.7	—	Fifth Amended and Restated - 2004 Long-Term Incentive Plan, filed as Appendix A to the definitive proxy statement for the 2010 Annual Meeting of Stockholders of ION Geophysical Corporation, filed on April 21, 2010, and incorporated herein by reference.
10.8	—	Registration Rights Agreement dated as of November 16, 1998, by and among the Company and The Laitram Corporation, filed on March 12, 2004 as Exhibit 10.7 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2003, and incorporated herein by reference.
**10.9	—	Input/Output, Inc. 1998 Restricted Stock Plan dated as of June 1, 1998, filed on June 9, 1999 as Exhibit 4.7 to the Company’s Registration Statement on S-8 (Registration No. 333-80297), and incorporated herein by reference.
**10.10	—	Input/Output Inc. Non-qualified Deferred Compensation Plan, filed on April 1, 2002 as Exhibit 10.14 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2001, and incorporated herein by reference.
**10.11	—	Input/Output, Inc. 2000 Restricted Stock Plan, effective as of March 13, 2000, filed on August 17, 2000 as Exhibit 10.27 to the Company’s Annual Report on Form 10-K for the fiscal year ended May 31, 2000, and incorporated herein by reference.
**10.12	—	Input/Output, Inc. 2000 Long-Term Incentive Plan, filed on November 6, 2000 as Exhibit 4.7 to the Company’s Registration Statement on Form S-8 (Registration No. 333-49382), and incorporated by reference herein.
**10.13	—	Employment Agreement dated effective as of March 31, 2003, by and between the Company and Robert P. Peebler, filed on March 31, 2003 as Exhibit 10.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.14	—	First Amendment to Employment Agreement dated September 6, 2006, between Input/Output, Inc. and Robert P. Peebler, filed on September 7, 2006, as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.15	—	Second Amendment to Employment Agreement dated February 16, 2007, between Input/Output, Inc. and Robert P. Peebler, filed on February 16, 2007 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.16	—	Third Amendment to Employment Agreement dated as of August 20, 2007 between Input/Output, Inc. and Robert P. Peebler, filed on August 21, 2007 as Exhibit 10.2 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.17	—	Fourth Amendment to Employment Agreement, dated as of January 26, 2009, between ION Geophysical Corporation and Robert P. Peebler, filed on January 29, 2009 as Exhibit 10.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
**10.18	—	Employment Agreement dated effective as of June 15, 2004, by and between the Company and David L. Roland, filed on August 9, 2004 as Exhibit 10.5 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2004, and incorporated herein by reference.
**10.19	—	GX Technology Corporation Employee Stock Option Plan, filed on August 9, 2004 as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2004, and incorporated herein by reference.
10.20	—	Concept Systems Holdings Limited Share Acquisition Agreement dated February 23, 2004, filed on March 5, 2004 as Exhibit 2.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.21	—	Registration Rights Agreement by and between ION Geophysical Corporation and 1236929 Alberta Ltd. dated September 18, 2008, filed on November 7, 2008 as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q and incorporated herein by reference.
**10.22	—	Form of Employment Inducement Stock Option Agreement for the Input/Output, Inc. — Concept Systems Employment Inducement Stock Option Program, filed on July 27, 2004 as Exhibit 4.1 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-117716), and incorporated herein by reference.
**10.23	—	Form of Employee Stock Option Award Agreement for ARAM Systems Employee Inducement Stock Option Program, filed on November 14, 2008 as Exhibit 4.4 to the Company’s Registration Statement on Form S-8 (Registration No. 333-155378) and incorporated herein by reference.

10.24	—	Agreement dated as of February 15, 2005, between Input/Output, Inc. and Fletcher International, Ltd., filed on February 17, 2005 as Exhibit 10.1 to the Company’s Current Report on Form 8-K and incorporated herein by reference.
10.25	—	First Amendment to Agreement, dated as of May 6, 2005, between the Company and Fletcher International, Ltd., filed on May 10, 2005 as Exhibit 10.2 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.26	—	Input/Output, Inc. 2003 Stock Option Plan, dated March 27, 2003, filed as Appendix B of the Company’s definitive proxy statement filed with the SEC on April 30, 2003, and incorporated herein by reference.
**10.27	—	Form of Employment Inducement Stock Option Agreement for the Input/Output, Inc. — GX Technology Corporation Employment Inducement Stock Option Program, filed on April 4, 2005 as Exhibit 4.1 to the Company’s Registration Statement on Form S-8 (Reg. No. 333-123831), and incorporated herein by reference.
**10.28	—	ION Stock Appreciation Rights Plan dated November 17, 2008, filed as Exhibit 10.47 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2008, and incorporated herein by reference.
10.29	—	Canadian Master Loan and Security Agreement dated as of June 29, 2009 by and among ICON ION, LLC, as lender, ION Geophysical Corporation and ARAM Rentals Corporation, a Nova Scotia corporation, filed on August 6, 2009 as Exhibit 10.3 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2009, and incorporated herein by reference.
10.30	—	Master Loan and Security Agreement (U.S.) dated as of June 29, 2009 by and among ICON ION, LLC, as lender, ION Geophysical Corporation and ARAM Seismic Rentals, Inc., a Texas corporation, filed on August 6, 2009 as Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2009, and incorporated herein by reference.
10.31	—	Registration Rights Agreement dated as of October 23, 2009 by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation filed on March 1, 2010 as Exhibit 10.54 to the Company’s Annual Report on Form 10-K for the year ended December 31, 2009, and incorporated herein by reference.
10.32	—	Stock Purchase Agreement dated as of March 19, 2010, by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.33	—	Investor Rights Agreement dated as of March 25, 2010, by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.2 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.34	—	Share Purchase Agreement dated as of March 24, 2010, by and among ION Geophysical Corporation, INOVA Geophysical Equipment Limited and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.3 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.35	—	Joint Venture Agreement dated as of March 24, 2010, by and between ION Geophysical Corporation and BGP Inc., China National Petroleum Corporation, filed on March 31, 2010 as Exhibit 10.4 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
10.36	—	Credit Agreement dated as of March 25, 2010, by and among ION Geophysical Corporation, ION International S.À R.L. and China Merchants Bank Co., Ltd., New York Branch, as administrative agent and lender, filed on March 31, 2010 as Exhibit 10.5 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.37	—	Fifth Amendment to Employment Agreement dated June 1, 2010, between ION Geophysical Corporation and Robert P. Peebler, filed on June 1, 2010 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.38	—	Employment Agreement dated August 2, 2011, effective as of January 1, 2012, between ION Geophysical Corporation and R. Brian Hanson, filed on November 3, 2011 as Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2011, and incorporated herein by reference.
**10.39	—	Employment Agreement dated effective as of November 28, 2011, between ION Geophysical Corporation and Gregory J. Heinlein, filed on December 1, 2011 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.

**10.40	—	First Amendment to Credit Agreement and Loan Documents dated May 29, 2012, filed on May 29, 2012 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
**10.41	—	Consulting Agreement dated January 1, 2013, between ION Geophysical Corporation and The Peebler Group LLC, filed on January 4, 2013 as Exhibit 10.1 to the Company’s Current Report on Form 8-K, and incorporated herein by reference.
*21.1	—	Subsidiaries of the Company.
*23.1	—	Consent of Ernst & Young LLP.
*24.1	—	The Power of Attorney is set forth on the signature page hereof.
*31.1	—	Certification of Chief Executive Officer Pursuant to Rule 13a-14(a) or Rule 15d-14(a).
*31.2	—	Certification of Chief Financial Officer Pursuant to Rule 13a-14(a) or Rule 15d-14(a).
*32.1	—	Certification of Chief Executive Officer Pursuant to 18 U.S.C. §1350.
*32.2	—	Certification of Chief Financial Officer Pursuant to 18 U.S.C. §1350.
101	—	The following materials are formatted in Extensible Business Reporting Language (XBRL): (i) Consolidated Balance Sheets at December 31, 2012 and 2011, (ii) Consolidated Statements of Operations for the years ended December 31, 2012, 2011 and 2010, (iii) Comprehensive Income (Loss) for the years ended December 31, 2012, 2011 and 2010, (iv) Consolidated Statements of Cash Flows for the years ended December 31, 2012, 2011 and 2010, (v) Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2012, 2011 and 2010, (vi) Notes to Consolidated Financial Statements and (vii) Schedule II – Valuation and Qualifying Accounts.***

*	Filed herewith.
**	Management contract or compensatory plan or arrangement.
***	In accordance with Rule 406T of Regulation S-T, the XBRL-related information in Exhibit 101 to this Annual Report on Form 10-K is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act, is deemed not filed for purposes of section 18 of the Exchange Act and otherwise is not subject to liability under these sections.

EX-21.1

EXHIBIT 21.1

SUBSIDIARIES OF ION GEOPHYSICAL CORPORATION

as of 12-31-2012

Subsidiary	Jurisdiction
Beijing ION Geophysical Co., Ltd.	China
Concept Systems Holdings Limited	Scotland
Concept Systems Limited	Scotland
GMG/AXIS, Inc.	Delaware
GX Technology Australia Pty Ltd.	Australia
GX Technology Canada, Ltd.	Canada
GX Technology Corporation	Texas
GX Technology EAME. Limited	UK
GX Technology Imaging Services Limited	Egypt
GX Technology Poland Sp. Z o.o.	Poland
GX Technology Processamento de Dados Ltda.	Brazil
GX Technology Sismica Brasil Ltda.	Brazil
GX Technology Trinidad, Ltd.	West Indies
I/O Cayman Islands, Ltd.	Cayman Islands
I/O International, Ltd.	Cayman Islands
I/O International Holdings, Ltd.	Cayman Islands
I/O Luxembourg S.à r.l.	Luxembourg
I/O Marine Systems Limited	UK
I/O Marine Systems, Inc.	Louisiana
I/O U.K., LTD.	UK
I/O U.K. Holdings Limited	Scotland
“Inco” Industrial Components ‘s-Gravenhage B.V.	Netherlands
Input/Output Canada, Ltd.	Canada
ION China Holdings, Limited	Hong Kong
ION Exploration Products (U.S.A.), Inc.	Delaware
ION Geophysical CIS LLC	Russia
ION International Holdings L.P.	Bermuda
ION International S.à r.l.	Luxembourg
ION International Sales Limited	Cyprus
IPOP Management, Inc.	Delaware
Sensor Nederland B.V.	Netherlands

EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1) Registration Statement (Form S-8 No. 33-54394) pertaining to the Input/Output, Inc. Amended 1990 Stock Option Plan and Amended and Restated 1991 Outside Directors’ Stock Option Plan,

(2) Registration Statement (Form S-8 No. 33-46386) pertaining to the Input/Output, Inc. 1990 Restricted Stock Plan, 1990 Stock Option Plan and 1991 Directors’ Stock Option Plan,

(3) Registration Statement (Form S-8 No. 33-85304) pertaining to the Input/Output, Inc. Amended 1990 Stock Option Plan and the Input/Output, Inc. Amended and Restated 1991 Outside Directors Stock Option Plan,

(4) Registration Statement (Form S-8 No. 333-14231) pertaining to the Input/Output, Inc. 1996 Non-Employee Director Stock Option Plan,

(5) Registration Statement (Form S-8 No. 333-24125) pertaining to the Input/Output, Inc. Employee Stock Purchase Plan,

(6) Registration Statement (Form S-8 No. 333-80297) pertaining to the Input/Output, Inc. 1998 Restricted Stock Plan,

(7) Registration Statement (Form S-8 No. 333-36264) pertaining to the Input/Output, Inc. 2000 Restricted Stock Plan,

(8) Registration Statement (Form S-8 No. 333-49382) pertaining to the Input/Output, Inc. 2000 Long-Term Incentive Plan,

(9) Registration Statement (Form S-8 No. 333-60950) pertaining to the Input/Output, Inc. Non-Employee Directors’ Retainer Plan,

(10) Registration Statement (Form S-8 No. 333-112677) pertaining to the Input/Output, Inc. 2003 Employee Stock Option Plan,

(11) Registration Statement (Form S-8 No. 333-116355) pertaining to the GX Technology Corporation Employee Stock Option Plan,

(12) Registration Statement (Form S-8 No. 333-117716) pertaining to the Input/Output, Inc. Concept Systems Employment Inducement Stock Option Program,

(13) Registration Statement (Form S-8 No. 333-123831) pertaining to the Input/Output, Inc. GX Technology Corp. Employment Inducement Stock Option Program and the Input/Output, Inc. April 2005 Inducement Equity Program,

(14) Registration Statement (Form S-8 No. 333-125655) pertaining to the Input/Output, Inc. 2004 Long-Term Incentive Plan,

(15) Registration Statement (Form S-8 No. 333-135775) pertaining to the Input/Output, Inc. Second Amended and Restated Input/Output, Inc. 2004 Long-Term Incentive Plan,

(16) Registration Statement (Form S-3 No. 333-112263) of Input/Output, Inc.,

(17) Registration Statement (Form S-3 No. 333-123632) of Input/Output, Inc.,

(18) Registration Statement (Form S-8 No. 333-145274) pertaining to the Third Amended and Restated Input/Output, Inc. 2004 Long-Term Incentive Plan, and

(19) Registration Statement (Form S-3 No. 333-148235) of ION Geophysical Corporation,

(20) Registration Statement (Form S-3 No. 333-149458) of ION Geophysical Corporation,

(21) Registration Statement (Form S-8 No. 333-155378) pertaining to the Fourth Amended and Restated 2004 Long-Term Incentive Plan and the ARAM Systems Employee Inducement Stop Options Program,

(22) Registration Statement (Form S-3 No. 333-155387) of ION Geophysical Corporation,

(23) Registration Statement (Form S-3 No. 333-156363) of ION Geophysical Corporation,

(24) Registration Statement (Form S-3 No. 333-159898) of ION Geophysical Corporation,

(25) Registration Statement (Form S-8 No. 333-167943) pertaining to the Fifth Amended and Restated 2004 Long-Term Incentive Plan and the ION Geophysical Corporation Employee Stock Purchase Plan,

(26) Registration Statement (Form S-3 No. 333-166200) of ION Geophysical Corporation, and

(27) Registration Statement (Form S-8 No. 333-176046) pertaining to the Sixth Amended and Restated 2004 Long-Term Incentive Plan;

of our reports dated February 19, 2013, with respect to the consolidated financial statements and schedule of ION Geophysical Corporation and subsidiaries and the effectiveness of internal control over financial reporting of ION Geophysical Corporation and subsidiaries included in this Annual Report (Form 10-K) of ION Geophysical Corporation for the year ended December 31, 2012.        

/s/ Ernst & Young LLP

Houston, Texas

February 19, 2013

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO RULE 13a-14(a) OR RULE 15d-14(a)

I, R. Brian Hanson, certify that:

1. I have reviewed this Annual Report on Form 10-K for the period ended December 31, 2012, of ION Geophysical Corporation;

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.

Date: February 19, 2013	/s/ R. Brian Hanson
	R. Brian Hanson
	President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO RULE 13a-14(a) OR RULE 15d-14(a)

I, Gregory J. Heinlein, certify that:

1. I have reviewed this Annual Report on Form 10-K for the period ended December 31, 2012, of ION Geophysical Corporation;

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.

Date: February 19, 2013	/s/ Gregory J. Heinlein
	Gregory J. Heinlein
	Senior Vice President and Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. §1350

In connection with the Annual Report of ION Geophysical Corporation (the “Company”) on Form 10-K for the period ended December 31, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, R. Brian Hanson, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to my knowledge that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 19, 2013	/s/ R. Brian Hanson
	R. Brian Hanson
	President and Chief Executive Officer

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. §1350

In connection with the Annual Report of ION Geophysical Corporation (the “Company”) on Form 10-K for the period ended December 31, 2012, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gregory J. Heinlein, Senior Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to my knowledge, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 19, 2013	/s/ Gregory J. Heinlein
	Gregory J. Heinlein
	Senior Vice President and Chief Financial Officer

XML

Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2012

Receivables [Abstract]

Summary of accounts receivable

A summary of accounts receivable is as follows (in thousands):

	December 31,
	2012			2011
Accounts receivable, principally trade	$	133,847		$	131,810
Less allowance for doubtful accounts	(6,711		)	(1,198		)
Accounts receivable, net	$	127,136		$	130,612

XML

Summary of Significant Accounting Policies (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Multi-client data creation
Gross costs of multi-client data creation	$ 689,464	$ 545,836
Less accumulated amortization	(459,149)	(370,068)
Total	$ 230,315	$ 175,768

XML

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Sources of income (loss) before income taxes

The sources of income (loss) before income taxes are as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Domestic	$	34,633	$	12,674	$	(55,547	)
Foreign	52,050		22,028		45,651
Total	$	86,683	$	34,702	$	(9,896	)

Components of income taxes

Components of income taxes are as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Current:
Federal	$	873		$	6,594		$	(3,489	)
State and local	192			493			665
Foreign	19,106			11,180			7,559
Deferred:
Federal	3,822			(4,893		)	21,665
Foreign	(136		)	(3,238		)	542
Total income tax expense	$	23,857		$	10,136		$	26,942

Reconciliation of the expected income tax expense on income (loss) before income taxes using the statutory federal income tax

A reconciliation of the expected income tax expense on income (loss) before income taxes using the statutory federal income tax rate of 35% for 2012, 2011 and 2010 to income tax expense is as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Expected income tax expense (benefit) at 35%	$	30,339		$	12,146		$	(3,464	)
Foreign tax rate differential	(5,404		)	(7,858		)	(11,914		)
Foreign tax differences	4,897			(2,511		)	—
Formation of INOVA Geophysical	—			—			10,507
Nondeductible financings	—			—			1,082
State and local taxes	192			493			665
Nondeductible expenses	47			1,091			492
Deferred tax asset valuation allowance:
Deferred tax asset valuation allowance on formation of INOVA Geophysical	—			—			20,213
Deferred tax asset valuation allowance on equity in losses of INOVA Geophysical	(104		)	8,002			8,303
Deferred tax asset valuation allowance on write-down of investments	195			459			2,677
Deferred tax asset valuation allowance on operations	(6,305		)	(1,686		)	(1,619		)
Total income tax expense	$	23,857		$	10,136		$	26,942

Tax effects of the cumulative temporary differences resulting in the net deferred income tax asset (liability)

The tax effects of the cumulative temporary differences resulting in the net deferred income tax asset (liability) are as follows (in thousands):

	December 31,
	2012			2011
Current deferred:
Deferred income tax assets:
Accrued expenses	$	11,417		$	3,701
Allowance accounts	5,057			3,900
Inventory	302			457
Total current deferred income tax asset	16,776			8,058
Valuation allowance	(10,454		)	(6,148		)
Net current deferred income tax asset	6,322			1,910
Deferred income tax liabilities:
Unbilled receivables	(26,863		)	(7,592		)
Net current deferred income tax liability	$	(20,541	)	$	(5,682	)
Non-current deferred:
Deferred income tax assets:
Net operating loss carryforward	$	7,227		$	6,598
Capital loss carryforward	19,919			19,005
Equity method investment	33,305			33,409
Cost method investments	4,037			3,843
Basis in identified intangibles	4,852			3,606
Basis in research and development	3,196			2,045
Basis in property, plant and equipment	(2,387		)	1,234
Tax credit carryforwards and other	10,387			10,386
Total non-current deferred income tax asset	80,536			80,126
Valuation allowance	(52,807		)	(63,327		)
Net non-current deferred income tax asset	$	27,729		$	16,799

Aggegate changes in gross amount of unrecognized tax benefits

For 2012, 2011 and 2010, the aggregate changes in the Company’s total gross amount of unrecognized tax benefits are summarized as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Beginning balance	$	1,375	$	816	$	470
Increases in unrecognized tax benefits – prior year positions	—		—		—
Increases in unrecognized tax benefits – current year positions	459		559		346
Ending balance	$	1,834	$	1,375	$	816

XML

Goodwill (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Changes in the carrying amount of goodwill
Goodwill, balance beginning	$ 53,963	$ 51,333
Goodwill acquired during the year		2,701
Impact of foreign currency translation adjustments	1,144	(71)
Purchase price adjustment	242
Goodwill, balance ending	55,349	53,963
Solution [Member]
Changes in the carrying amount of goodwill
Goodwill, balance beginning	2,701	0
Goodwill acquired during the year		2,701
Impact of foreign currency translation adjustments	0	0
Purchase price adjustment	242
Goodwill, balance ending	2,943	2,701
Software [Member]
Changes in the carrying amount of goodwill
Goodwill, balance beginning	24,278	24,349
Goodwill acquired during the year		0
Impact of foreign currency translation adjustments	1,144	(71)
Purchase price adjustment	0
Goodwill, balance ending	25,422	24,278
Systems [Member]
Changes in the carrying amount of goodwill
Goodwill, balance beginning	26,984	26,984
Goodwill acquired during the year		0
Impact of foreign currency translation adjustments	0	0
Purchase price adjustment	0
Goodwill, balance ending	$ 26,984	$ 26,984

XML

Summary of Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Mar. 25, 2010	Mar. 24, 2010
Percentage of equity method investment	49.00%			49.00%	49.00%
Summary of Significant Accounting Policies (Textual) [Abstract]
Short-term restricted cash	$ 1,500,000	$ 3,300,000
Multi-client data library capitalized income	3,800,000	2,400,000	2,800,000
Multi-client data library impairment charges	0	0	0
Foreign Currency Gains and Losses
Total foreign currency transaction gains (losses)	$ (1,900,000)	$ (1,700,000)	$ 1,000,000
Concentration of Credit and Foreign Sales Risk
International sales comprised of total net revenue	69.00%	66.00%	60.00%
Maximum [Member]
Percentage of equity method investment	50.00%
Amortization of customer relationship intangible asset	15 years
Range of product warranty	3 years
Revenue Recognition
Time-based licenses, company recognizes revenue		P5Y
Minimum [Member]
Percentage of equity method investment	20.00%
Amortization of customer relationship intangible asset	10 years
Range of product warranty	30 days
Revenue Recognition
Time-based licenses, company recognizes revenue		P2Y
Copyrights [Member] | Maximum [Member]
Goodwill and Other Intangible Assets
Intangible assets other than goodwill, estimated period of benefit minimum	5 years
Copyrights [Member] | Minimum [Member]
Goodwill and Other Intangible Assets
Intangible assets other than goodwill, estimated period of benefit minimum	4 years

XML

Cumulative Convertible Preferred Stock (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended									0 Months Ended	12 Months Ended		12 Months Ended		0 Months Ended	12 Months Ended					12 Months Ended
	Nov. 28, 2008	Dec. 31, 2012	Dec. 31, 2008	Dec. 31, 2005	Dec. 31, 2012 Series D Cumulative Convertible Preferred Stock [Member]	Dec. 31, 2005 Series D Cumulative Convertible Preferred Stock [Member]	Jan. 12, 2011 Series D Cumulative Convertible Preferred Stock [Member]	Apr. 08, 2010 Series D Cumulative Convertible Preferred Stock [Member]	Feb. 01, 2009 Series D Cumulative Convertible Preferred Stock [Member]	Nov. 28, 2008 Series D Cumulative Convertible Preferred Stock [Member]	Apr. 08, 2010 Series D-1 Cumulative Convertible Preferred Stock [Member]	Dec. 31, 2005 Series D-1 Cumulative Convertible Preferred Stock [Member]	Jun. 30, 2012 Series D-1 Cumulative Convertible Preferred Stock [Member]	Dec. 31, 2007 Series D-2 Cumulative Convertible Preferred Stock [Member]	Jun. 30, 2012 Series D-2 Cumulative Convertible Preferred Stock [Member]	Apr. 08, 2010 Series D-3 Cumulative Convertible Preferred Stock [Member]	Dec. 31, 2008 Series D-3 Cumulative Convertible Preferred Stock [Member]	Feb. 28, 2008 Series D-3 Cumulative Convertible Preferred Stock [Member]	Jun. 30, 2012 Series D Preferred Stock [Member]	Jun. 30, 2012 Common Stock	Apr. 08, 2010 Common Stock	Dec. 31, 2012 Option One [Member] Series D Cumulative Convertible Preferred Stock [Member]
Cumulative Convertible Preferred Stock (Textual) [Abstract]
Number of preferred shares issued												30,000		5,000				35,000
Net proceeds received												$ 29.8		$ 5.0			$ 35.0
Number of shares on which option to purchase additional shares under fletcher agreement				40,000
Term of conversion						122% of an average daily volume-weighted market price of the Company’s common stock over a trailing period of days at the time of issuance of that series
Rate of dividend payable					5.00%																	5.00%
Basis for preferred dividend rate					LIBOR
Basis spread for preferred dividend rate		2.50%
Number of days considered to determine weighted average trading price	20 days			20 days
Minimum price of common stock under agreement				$ 4.4517
Price of common stock calculated per agreement	$ 4.328
Maximum number of shares of common stock issued or issuable upon conversion or redemption of preferred stock						15,724,306	15,724,306
Number of preferred shares converted to common stock											8,000					35,000
Original number of shares of common stock issued or issuable upon conversion or redemption of preferred stock						7,669,434
Increased number of shares of common stock issued or issuable upon conversion or redemption of preferred stock									9,669,434
Number of common stock shares issued after conversion																				6,065,075	9,659,231
Redemption price per share								$ 4.4517		$ 4.4517
Number of shares owned by fletcher Ltd. after conversion		27,000											22,000		5,000				27,000
Cumulative Convertible Preferred Stock Additional (Textual) [Abstract]
Period of notice to increase the number of shares up to maximum number under agreement				65 days
Preferred stock reset notice condition			Under the Fletcher Agreement, if a 20-day volume-weighted average trading price per share of the Company’s common stock fell below $4.4517 (the “Minimum Price”), the Company was required to deliver a notice (the “Reset Notice”) to Fletcher. On November 28, 2008, the volume-weighted average trading price per share of the Company’s common stock on the New York Stock Exchange for the previous 20 trading days was calculated to be $4.328, and the Company delivered the Reset Notice to Fletcher in accordance with the terms of the Fletcher Agreement. In the Reset Notice, the Company elected to reset the conversion prices for the Series D Preferred Stock to the Minimum Price ($4.4517 per share)

XML

Stockholders' Equity and Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Transactions under the stock option plans

Transactions under the stock option plans are summarized as follows:

	Option Price per Share	Outstanding		Vested		Available for Grant
January 1, 2010	$1.07-$16.39	7,766,188		5,042,682		410,873
Increase in shares authorized	—	—		—		2,500,000
Granted	3.42-7.19	1,249,900		—		(1,249,900	)
Vested	—	—		1,370,897		—
Exercised	1.07-7.31	(323,610	)	(323,610	)	—
Cancelled/forfeited	1.07-16.12	(970,686	)	(700,561	)	674,363
Restricted stock granted out of option plans	—	—		—		(762,680	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		76,044
December 31, 2010	2.49-16.39	7,721,792		5,389,408		1,648,700
Increase in shares authorized	—	—		—		5,000,000
Granted	5.81-10.09	1,559,400		—		(1,559,400	)
Vested	—	—		851,222		—
Exercised	2.49-11.51	(2,145,792	)	(2,145,792	)	—
Cancelled/forfeited	3.00-15.43	(344,100	)	(250,300	)	262,513
Restricted stock granted out of option plans	—	—		—		(651,661	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		93,488
December 31, 2011	2.49-16.39	6,791,300		3,844,538		4,793,640
Granted	5.96-7.16	1,544,000		—		(1,544,000	)
Vested	—	—		1,060,275		—
Exercised	2.49-7.76	(194,410	)	(194,410	)	—
Cancelled/forfeited	2.49-15.43	(212,540	)	(119,165	)	127,125
Restricted stock granted out of option plans	—	—		—		(667,000	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		229,163
December 31, 2012	$2.80-$16.39	7,928,350		4,591,238		2,938,928

Summary of stock options outstanding

Stock options outstanding at December 31, 2012 are summarized as follows:

Option Price per Share	Outstanding	Weighted Average Exercise Price of Outstanding Options		Weighted Average Remaining Contract Life	Vested	Weighted Average  Exercise Price of Vested Options
$2.80 - $4.58	1,400,175	$	3.36	6.1	1,258,425	$	3.36
4.90 - 7.45	4,783,225	$	6.30	8.1	1,606,613	$	6.31
7.76 - 13.29	824,500	$	9.96	3.6	805,750	$	9.96
14.03 - 16.39	920,450	$	15.22	5.0	920,450	$	15.22
Totals	7,928,350	$	7.19	6.9	4,591,238	$	7.98

Additional Information related to the Company's stock options

Additional information related to the Company’s stock options is as follows:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Contractual Life in Years	Aggregate Intrinsic Value (000’s)
Total outstanding at January 1, 2012	6,791,300		$	7.42			7.1
Options granted	1,544,000		$	6.05	$	3.54
Options exercised	(194,410	)	$	4.15
Options cancelled	(93,375	)	$	5.98
Options forfeited	(119,165	)	$	10.29
Total outstanding at December 31, 2012	7,928,350		$	7.19			6.9	$	6,510
Options exercisable and vested at December 31, 2012	4,591,238		$	7.98			5.4	$	4,664

Status of the Company's restricted stock and restricted stock unit awards

The status of the Company’s restricted stock and restricted stock unit awards for 2012 is as follows:

	Number of  Shares/Units
Total nonvested at January 1, 2012	1,154,795
Granted	667,000
Vested	(764,704	)
Forfeited	(23,644	)
Total nonvested at December 31, 2012	1,033,447

Assumptions used to calculate the fair value of option and SAR award on the grant date using the Black-Scholes option pricing model

The following assumptions were used for each respective period:

	Years Ended December 31,
	2012		2011		2010
Risk-free interest rates	0.7% – 1.0%		1.1% – 1.9%		1.5% – 2.5%
Expected lives (in years)	5.5		5.5		5.5
Expected dividend yield	—	%	—	%	—	%
Expected volatility	67.8% – 72.2%		65.9% – 80.2%		67.4% – 71.6%

XML

Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2012

Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

VALUATION AND QUALIFYING ACCOUNTS

Year Ended December 31, 2010	Balance at Beginning of Year		Disposed Reserves During the Period			Charged (Credited) to Costs and Expenses		Deductions			Balance at End of Year
	(In thousands)
Allowances for doubtful accounts	$	5,674	$	(4,273	)	$	1,689	$	(2,245	)	$	845
Allowances for doubtful notes	71		(71		)	—		—			—
Warranty	5,088		(3,821		)	443		(926		)	784
Valuation allowance on deferred tax assets	33,126		(15,897		)	45,471		—			62,700
Excess and obsolete inventory	30,618		(15,819		)	1,587		(3,510		)	12,876

Year Ended December 31, 2011	Balance at Beginning of Year		Charged (Credited) to Costs and Expenses		Deductions			Balance at End of Year
	(In thousands)
Allowances for doubtful accounts	$	845	$	597	$	(244	)	$	1,198
Warranty	784		1,165		(1,234		)	715
Valuation allowance on deferred tax assets	62,700		6,775		—			69,475
Excess and obsolete inventory	12,876		567		(406		)	13,037

Year Ended December 31, 2012	Balance at Beginning of Year		Charged (Credited) to Costs and Expenses			Deductions			Balance at End of Year
	(In thousands)
Allowances for doubtful accounts	$	1,198	$	5,811		$	(298	)	$	6,711
Warranty	715		1,258			(932		)	1,041
Valuation allowance on deferred tax assets	69,475		(6,214		)	—			63,261
Excess and obsolete inventory	13,037		1,326			(124		)	14,239

XML

Stockholders' Equity and Stock-Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012
Transactions under the stock option plans
Weighted average exercise price, minimum, beginning balance	$ 2.49	$ 2.49	$ 1.07
Weighted average exercise price, maximum, beginning balance	$ 16.39	$ 16.39	$ 16.39	$ 16.39
Number of Shares, Beginning Balance	6,791,300	7,721,792	7,766,188
Vested, beginning balance	3,844,538	5,389,408	5,042,682
Available for Grant, beginning balance	4,793,640	1,648,700	410,873
Increase in shares authorized		5,000,000	2,500,000
Granted minimum	$ 5.96	$ 5.81	$ 3.42
Granted maximum	$ 7.16	$ 10.09	$ 7.19
Available for Grant, Options Granted	(1,544,000)	(1,559,400)	(1,249,900)
Vested	1,060,275	851,222	1,370,897
Exercised, minimum	$ 2.49	$ 2.49	$ 1.07
Exercised maximum	$ 7.76	$ 11.51	$ 7.31
Exercise of stock options, shares	194,410	2,145,792	323,610
Cancelled/forfeited, minimum	$ 2.49	$ 3.00	$ 1.07
Cancelled/forfeited, maximum	$ 15.43	$ 15.43	$ 16.12
Cancelled/forfeited, Outstanding	(212,540)	(344,100)	(970,686)
Cancelled/forfeited, Vested	(119,165)	(250,300)	(700,561)
Cancelled/forfeited, Available for Grant	127,125	262,513	674,363
Restricted stock granted out of option plans	(667,000)	(651,661)	(762,680)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	229,163	93,488	76,044
Weighted average exercise price, minimum, Ending balance	$ 2.80	$ 2.49	$ 2.49
Number of Shares, Ending Balance	7,928,350	6,791,300	7,721,792
Vested, ending balance	4,591,238	3,844,538	5,389,408
Available for Grant, ending balance	2,938,928	4,793,640	1,648,700

XML

Accrued Expenses (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of accrued expenses
Accrued multi-client data library acquisition costs	$ 47,678	$ 26,871
Compensation, including compensation-related taxes and commissions	28,993	19,398
Deferred income tax liability	20,556	5,695
Accrued legal contingency	10,000	0
Income tax payable	8,348	1,211
Other	8,520	8,209
Total accrued expenses	$ 124,095	$ 61,384

XML

Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended			15 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Reconciliation of the expected income tax expense on income (loss) before income taxes using the statutory federal income tax
Expected income tax expense (benefit) at 35%							$ 30,339	$ 12,146	$ (3,464)
Foreign tax rate differential							(5,404)	(7,858)	(11,914)
Foreign tax differences							4,897	(2,511)	0
Formation of INOVA Geophysical							0	0	10,507
Nondeductible financings							0	0	1,082
State and local taxes							192	493	665
Nondeductible expenses							47	1,091	492
Deferred tax asset valuation allowance:
Deferred tax asset valuation allowance on formation of INOVA Geophysical							0	0	20,213
Deferred tax asset valuation allowance on equity in losses of INOVA Geophysical							(104)	8,002	8,303
Deferred tax asset valuation allowance on write-down of RXT shares							195	459	2,677
Deferred tax asset valuation allowance on operations							(6,305)	(1,686)	(1,619)
Income tax expense	$ 10,191	$ 6,037	$ 4,184	$ 3,445	$ 1,085	$ 147	$ 23,857	$ 10,136	$ 26,942	$ 5,420	$ 3,484

XML

Segment and Geographic Information (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Depreciation and amortization
Total	$ 105,282	$ 91,234	$ 110,735
Solutions [Member]
Depreciation and amortization
Total	98,342	84,958	96,271
Systems [Member]
Depreciation and amortization
Total	4,185	3,229	2,992
Software [Member]
Depreciation and amortization
Total	776	1,116	2,461
Corporate and Other [Member]
Depreciation and amortization
Total	1,979	1,931	2,644
Legacy Land Systems (INOVA) [Member]
Depreciation and amortization
Total	$ 0	$ 0	$ 6,367

XML

Long-term Debt, Lease Obligations and Interest Rate Caps (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Long-term Debt [Member]
Equipment Capital Leases
2013	$ 832
2014	966
2015	97,786
Total	99,584
Capital Lease Obligations [Member]
Equipment Capital Leases
2013	2,664
2014	2,343
2015	737
Total	$ 5,744

XML

Other Income (Expense) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	3 Months Ended							12 Months Ended			15 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Mar. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Other Income and Expenses [Abstract]
Gain on legal settlements, net (Note 21)	$ 19,000								$ 20,895	$ 0	$ 24,500
Loss on disposition of land division (Note 15)									0	0	(38,115)
Fair value adjustment of warrant (Note 15)								12,800	0	0	12,788
Write-down of investments (Note 19)									(556)	(1,312)	(7,650)
Other income (expense)									(3,215)	(2,135)	228
Total other income (expense)		$ 17,851	$ (936)	$ 895	$ (686)	$ 497	$ (2,999)		$ 17,124	$ (3,447)	$ (8,249)	$ (1,144)	$ 199

XML

Stockholders' Equity and Stock-Based Compensation (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Additional information related to the Company's stock options
Number of Shares, Beginning Balance	6,791,300	7,721,792	7,766,188
Available for Grant, Options Granted	(1,544,000)	(1,559,400)	(1,249,900)
Weighted Average Exercise Price, Option granted	$ 6.05
Weighted average grant date fair value, Options granted	$ 3.54	$ 4.00	$ 3.81
Exercise of stock options, shares	(194,410)	(2,145,792)	(323,610)
Weighted Average Exercise Price, Options exercised	$ 4.15
Number of Shares, Options cancelled	(93,375)
Weighted Average Exercise Price, Options cancelled	$ 5.98
Number of Shares, Options forfeited	(119,165)
Weighted Average Exercise Price, Options forfeited	$ 10.29
Number of Shares, Ending Balance	7,928,350	6,791,300	7,721,792
Weighted average exercise price, beginning balance	$ 7.42
Weighted Average Exercise Price, Ending Balance	$ 7.19	$ 7.42
Weighted Average Remaining Contract Life, Beginning Balance	6 years 10 months 24 days	7 years 1 month 6 days
Weighted Average Remaining Contract Life, Ending Balance	6 years 10 months 24 days	7 years 1 month 6 days
Aggregate Intrinsic Value, Ending Balance	$ 6,510,000
Number of Shares, Options exercisable and vested	4,591,238
Weighted Average Exercise Price, Options exercisable and vested	$ 7.98
Weighted Average Remaining Contractual Life in Years, Options exercisable and vested	5 years 4 months 24 days
Aggregate Intrinsic Value, Options exercisable and vested	4,664,000
Total intrinsic value of options exercised	600,000	13,300,000	900,000
Cash received from option exercises	$ 800,000	$ 13,100,000	$ 1,100,000

XML

Formation of INOVA Geophysical and Related Financing Transactions (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 25, 2010	Mar. 31, 2010	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	May 29, 2012	Mar. 24, 2010
Formation of INOVA Geophysical and Related Financing Transactions (Textual) [Abstract]
Issuance of stock, shares	23,789,536
BGP interest in INOVA Geophysical	51.00%						51.00%
Effective purchase price	$ 2.80
Shares acquired upon BGP conversion	10,204,082
Principal balance of indebtedness outstanding under a Convertible Promissory Note	$ 28,600,000
Sale of shares of ION common stock to BGP	13,585,454
Beneficially owned of the outstanding shares	16.60%		15.20%
Cash received from BGP	38,000,000
Term loan facility			97,250,000	0		98,300,000
Repay of total indebtedness	226,000,000		101,702,000	6,145,000	145,558,000
Applied a portion of the cash proceeds, received for BGP's purchase	108,500,000						108,500,000
Received cash proceeds from BGP			0	0	99,790,000
Company's outstanding shares of common stock owns			10.00%
Percentage of equity method investment	49.00%		49.00%				49.00%
Equity in losses of INOVA Geophysical			0	0	(38,115,000)
Fair value of retained interest					119,000,000
Deconsolidated net assets associated with land division		221,700,000
Accumulated foreign currency translation losses		21,200,000
Expense from the sale of common stock at discount		7,000,000
Expense related to use of certain leased facilities		5,000,000
Other expenses related to formation of INOVA geophysical		2,000,000
Non-cash fair value adjustment		12,800,000	0	0	12,788,000
Fair value of Warrants		32,000,000
Common stock dividend payments rate		0.00%
Interest expense the remaining non-cash debt discount		8,700,000
Write-down of unamortized debt issuance costs and debt discount		10,100,000	0	0	18,777,000
BGP [Member]
Formation of INOVA Geophysical and Related Financing Transactions (Textual) [Abstract]
Term loan facility	191,300,000
BGP [Member] | Term Loan [Member]
Formation of INOVA Geophysical and Related Financing Transactions (Textual) [Abstract]
Credit facility under a new five-year term loan	106,300,000
Term of term loan facility	5 years
Term loan facility	106,300,000
BGP [Member] | Revolving Credit Facility [Member]
Formation of INOVA Geophysical and Related Financing Transactions (Textual) [Abstract]
Revolving line of credit borrowings	100,000,000
Term loan facility	$ 85,000,000

XML

Long-term Debt, Lease Obligations and Interest Rate Caps (Details Textual) (USD $)	1 Months Ended		12 Months Ended						1 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2010	Jun. 30, 2005 lease	Dec. 31, 2012	Dec. 31, 2001	May 29, 2012	Dec. 31, 2011	Aug. 31, 2010 August 2011 Caps [Member]	Jul. 31, 2011 July 2011 Caps [Member]	Aug. 31, 2010 August 2010 [Member]	Dec. 31, 2012 August 2010 [Member]	Dec. 31, 2012 First Amendment [Member]	Mar. 31, 2012 Line of Credit Facility [Member]	Dec. 31, 2012 Line of Credit Facility [Member]	Mar. 31, 2012 Line of Credit Facility [Member] Eurodollar Borrowing [Member]	Dec. 31, 2012 Line of Credit Facility [Member] Eurodollar Borrowing [Member]
Notes Payable Long-term Debt, Lease Obligations and Interest Rate Caps (Textual) [Abstract]
Revolving line of credit borrowings											$ 175,000,000
Outstanding term loan indebtedness under Credit Facility			97,250,000		98,300,000	0
Debt instrument basis spread on variable rate under option one													0.50%	3.50%	2.40%
Debt instrument basis spread on variable rate under option two													1.00%
Debt instrument basis spread on variable rate under option three												2.50%	1.40%
Accrued interest rate on credit facility			2.67%
Fixed charge coverage ratio			1.125
Leverage ratio			3.25
Percentage of tangible net worth for covenants compliance	60.00%
Initial notional amount of interest rate caps purchased							103,300,000
Interest rate cap									three-month average LIBOR cap of 2.0%
LIBOR portion of interest rate owned by company									2.00%	2.00%
Interest rate caps purchased								700,000
Amounts included in accumulated other comprehensive income			400,000
Changes in fair value of interest rate caps			100,000
Lease term, sale-leaseback transaction		12 years		12 years
Operating lease term		10 years
Number of lease arrangements		2
Commitment recorded under second lease			5,500,000
Lease obligation at implicit rate			11.70%
Lease obligation amount outstanding			$ 2,300,000
Extension period option of renewable leases			20 years
Interest accrues under the capital leases			6.00%

XML

Intangible Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Summary of intangible assets, net
Gross Amount	$ 65,705,000	$ 64,529,000
Accumulated Amortization	(50,864,000)	(46,813,000)
Net	14,841,000	17,716,000
Amortization expenses	3,900,000	4,500,000	7,400,000
Customer Relationships [Member]
Summary of intangible assets, net
Gross Amount	42,397,000	42,194,000
Accumulated Amortization	(28,909,000)	(25,529,000)
Net	13,488,000	16,665,000
Intellectual Property Rights [Member]
Summary of intangible assets, net
Gross Amount	4,300,000	3,350,000
Accumulated Amortization	(2,947,000)	(2,299,000)
Net	1,353,000	1,051,000
Proprietary technology [Member]
Summary of intangible assets, net
Gross Amount	19,008,000	18,985,000
Accumulated Amortization	(19,008,000)	(18,985,000)
Net	$ 0	$ 0

XML

Operating Leases

12 Months Ended

Dec. 31, 2012

Leases, Operating [Abstract]

Operating Leases

Operating Leases

Lessee.    The Company leases certain equipment, offices, and warehouse space under non-cancelable operating leases. Rental expense was $14.4 million, $16.7 million, and $15.5 million for 2012, 2011 and 2010, respectively.

A summary of future rental commitments over the next five years under non-cancelable operating leases is as follows (in thousands):

Years Ending December 31,
2013	$	8,641
2014	8,242
2015	7,955
2016	8,978
2017	8,900
Total	$	42,716

XML

Operating Leases (Tables)

12 Months Ended

Dec. 31, 2012

Leases, Operating [Abstract]

Future rental commitments over the next five years under non-cancelable operating leases

A summary of future rental commitments over the next five years under non-cancelable operating leases is as follows (in thousands):

Years Ending December 31,
2013	$	8,641
2014	8,242
2015	7,955
2016	8,978
2017	8,900
Total	$	42,716

XML

Goodwill (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill

The following is a summary of the changes in the carrying amount of goodwill for the years ended December 31, 2012 and 2011 (in thousands):

	Solutions		Software			Systems		Total
Balance at January 1, 2011	$	—	$	24,349		$	26,984	$	51,333
Goodwill acquired during the year	2,701		—			—		2,701
Impact of foreign currency translation adjustments	—		(71		)	—		(71		)
Balance at December 31, 2011	2,701		24,278			26,984		53,963
Purchase price adjustment	242		—			—		242
Impact of foreign currency translation adjustments	—		1,144			—		1,144
Balance at December 31, 2012	$	2,943	$	25,422		$	26,984	$	55,349

XML

Long-term Debt, Lease Obligations and Interest Rate Caps (Details 1) (USD $) In Thousands, unless otherwise specified		12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Aug. 31, 2010 August 2011 Caps [Member]	Dec. 31, 2012 March 29, 2013 [Member]	Dec. 31, 2012 March 29, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 March 29, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 June 28, 2013 [Member]	Dec. 31, 2012 June 28, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 June 28, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 September 30, 2013 [Member]	Dec. 31, 2012 September 30, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 September 30, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 December 31, 2013 [Member]	Dec. 31, 2012 December 31, 2013 [Member] August 2011 Caps [Member]	Dec. 31, 2012 December 31, 2013 [Member] July 2011 Caps [Member]	Dec. 31, 2012 March 31, 2014 [Member]	Dec. 31, 2012 March 31, 2014 [Member] August 2011 Caps [Member]	Dec. 31, 2012 March 31, 2014 [Member] July 2011 Caps [Member]
Interest Rate Caps
Payment Date		Mar. 29, 2013			Jun. 28, 2013			Sep. 30, 2013			Dec. 31, 2013			Mar. 31, 2014
Cap Rate		2.00%			2.00%			2.00%			2.00%
Notional Amounts	$ 103,300	$ 84,925	$ 66,675	$ 18,250	$ 63,175	$ 0	$ 63,175	$ 62,475	$ 0	$ 62,475	$ 61,775	$ 0	$ 61,775	$ 61,075	$ 0	$ 61,075

XML

Benefit Plans (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Compensation and Retirement Disclosure [Abstract]
Maximum contribution by employees as a percentage of their compensation to defined benefit plan	up to 60% of their compensation
Description of Company's contribution to plan	At a rate of 50% of the first 6% of compensation contributed to the plan
Company contributions to benefit plans	$ 1.4	$ 1.3	$ 0.9
Percentage of contribution made to defined benefit plan	50.00%
Component percent of first compensation contributed to defined benefit plan	6.00%

XML

Equity Method Investment in INOVA Geophysical (Tables)

12 Months Ended

Dec. 31, 2012

Equity Method Investments and Joint Ventures [Abstract]

Summary of unaudited financial information for INOVA Geophysical

The following table reflects summarized financial information for INOVA Geophysical as of September 30, 2012 and 2011 and for Fiscal 2012, Fiscal 2011 and Fiscal 2010 (in thousands):

	September 30,
	2012		2011
Current assets	$	138,401	$	104,291
Non-current assets	101,280		108,039
Current liabilities	78,241		38,849
Non-current liabilities	9,290		25,701
Equity	$	152,150	$	147,780

	Fiscal 2012		Fiscal 2011				Fiscal 2010
Total net revenues	$	188,336	$	138,735			$	47,609
Gross profit (loss)	$	39,320	$	5,765		(A)	$	(21,574	)	(B)
Income (loss) from operations	$	3,241	$	(41,836	)		$	(45,423	)
Net income (loss)	$	2,197	$	(46,033	)		$	(48,416	)

(A) Includes approximately $15.7 million of excess inventory charge reflected in INOVA’s third quarter of 2011 and ION’s fourth quarter of 2011.

(B) Includes approximately $19.3 million of excess inventory charge reflected in INOVA’s third quarter of 2010 and ION’s fourth quarter of 2010.

XML

Selected Quarterly Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Summary of selected quarterly information

A summary of selected quarterly information is as follows (in thousands, except per share amounts):

	Three Months Ended
Year Ended December 31, 2012	March 31			June 30			September 30			December 31
Service revenues	$	66,634		$	72,844		$	93,023		$	122,082
Product revenues	45,076			32,370			43,300			50,988
Total net revenues	111,710			105,214			136,323			173,070
Gross profit	41,156			45,943			55,958			72,744
Income from operations	11,643			12,972			25,049			24,863
Interest expense, net	(1,518		)	(1,364		)	(1,237		)	(1,146		)
Equity in earnings (losses) of INOVA Geophysical	2,468			3,777			(1,684		)	(4,264		)
Other income (expense)	(686		)	895			(936		)	17,851
Income tax expense	3,445			4,184			6,037			10,191
Net income attributable to noncontrolling interests	113			281			42			53
Preferred stock dividends	338			338			338			338
Net income applicable to common shares	$	8,237		$	12,039		$	14,859		$	26,828
Net income per share:
Basic	$	0.05		$	0.08		$	0.10		$	0.17
Diluted	$	0.05		$	0.08		$	0.09		$	0.17

	Three Months Ended
Year Ended December 31, 2011	March 31			June 30			September 30			December 31
Service revenues	$	58,165		$	49,516		$	73,894		$	84,011
Product revenues	32,387			39,016			41,760			75,872
Total net revenues	90,552			88,532			115,654			159,883
Gross profit	31,139			33,631			44,058			64,617
Income from operations	6,071			8,800			18,496			33,428
Interest expense, net	(1,615		)	(1,187		)	(1,382		)	(1,600		)
Equity in losses of INOVA Geophysical	(860		)	(4,173		)	(4,811		)	(13,018		)
Other income (expense)	(2,999		)	497			199			(1,144		)
Income tax expense	147			1,085			3,484			5,420
Net income attributable to noncontrolling interests	25			44			34			105
Preferred stock dividends	338			338			338			338
Net income applicable to common shares	$	137		$	2,558		$	8,714		$	12,013
Net income per share:
Basic	$	—		$	0.02		$	0.06		$	0.08
Diluted	$	—		$	0.02		$	0.06		$	0.08

XML

Inventories (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Inventories (Textual) [Abstract]
Inventory obsolescence and excess inventory charges	$ 1.3	$ 0.6	$ 1.6

XML

Equity Method Investment in INOVA Geophysical (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010
Equity Method Investment Summarized Financial Information Income Statements
Total net revenues	$ 188,336	$ 138,735		$ 47,609
Gross profit (loss)	39,320	5,765	[1]	(21,574)	[2]
Loss from operations	3,241	(41,836)		(45,423)
Net loss	$ 2,197	$ (46,033)		$ (48,416)

[1] Includes approximately $15.7 million of excess inventory charge reflected in INOVA’s third quarter of 2011 and ION’s fourth quarter of 2011.

[2] Includes approximately $19.3 million of excess inventory charge reflected in INOVA’s third quarter of 2010 and ION’s fourth quarter of 2010.

XML

Other Income (Expense) (Tables)

12 Months Ended

Dec. 31, 2012

Other Income and Expenses [Abstract]

Other Income (Expense)

A summary of other income (expense) is as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Gain on legal settlements, net (Note 21)	$	20,895		$	—		$	24,500
Loss on disposition of land division (Note 15)	—			—			(38,115		)
Fair value adjustment of warrant (Note 15)	—			—			12,788
Write-down of investments (Note 19)	(556		)	(1,312		)	(7,650		)
Other income (expense)	(3,215		)	(2,135		)	228
Total other income (expense)	$	17,124		$	(3,447	)	$	(8,249	)

XML

Segment and Geographic Information

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Segment and Geographic Information

Segment and Geographic Information

The Company evaluates and reviews its results based on three segments: Solutions, Systems and Software; and its INOVA Geophysical joint venture. For operating results of INOVA Geophysical, see Note 3 “Equity Method Investment in INOVA Geophysical.” The Company measures segment operating results based on income from operations. The Legacy Land Systems (INOVA) segment represents the disposed land division operations through March 25, 2010, the date of the closing of INOVA Geophysical.

A summary of segment information is as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Net revenues:
Solutions:
New Venture	$	147,346	$	98,335	$	81,293
Data Library	88,085		76,332		87,664
Total multi-client revenues	235,431		174,667		168,957
Data Processing	115,834		88,783		107,997
Total	$	351,265	$	263,450	$	276,954
Systems:
Towed Streamer	$	77,769	$	111,453	$	83,567
Ocean Bottom	14,823		960		1,876
Other	39,404		40,591		28,783
Total	$	131,996	$	153,004	$	114,226
Software:
Software Systems	$	39,738	$	36,031	$	34,465
Services	3,318		2,136		2,166
Total	$	43,056	$	38,167	$	36,631
Legacy Land Systems (INOVA)	$	—	$	—	$	16,511
Total	$	526,317	$	454,621	$	444,322

	Years Ended December 31,
	2012			2011			2010
Gross profit:
Solutions	$	132,950		$	84,647		$	93,804
Systems	50,790			61,109			48,557
Software	32,061			27,689			24,356
Legacy Land Systems (INOVA)	—			—			(984		)
Total	$	215,801		$	173,445		$	165,733
Gross margin:
Solutions	38		%	32		%	34		%
Systems	38		%	40		%	43		%
Software	74		%	73		%	66		%
Legacy Land Systems (INOVA)	—		%	—		%	(6		)%
Total	41		%	38		%	37		%
Income from operations:
Solutions	$	88,589		$	50,620		$	60,632
Systems	10,132			33,034			27,749
Software	28,129			24,463			21,936
Corporate and other	(52,323		)	(41,322		)	(47,847		)
Legacy Land Systems (INOVA)	—			—			(9,623		)
Income from operations	74,527			66,795			52,847
Interest expense, net	(5,265		)	(5,784		)	(30,770		)
Equity in earnings (losses) of INOVA Geophysical	297			(22,862		)	(23,724		)
Other income (expense)	17,124			(3,447		)	(8,249		)
Income (loss) before income taxes	$	86,683		$	34,702		$	(9,896	)

Depreciation and amortization (including multi-client data library):
Solutions	$	98,342	$	84,958	$	96,271
Systems	4,185		3,229		2,992
Software	776		1,116		2,461
Corporate and other	1,979		1,931		2,644
Legacy Land Systems (INOVA)	—		—		6,367
Total	$	105,282	$	91,234	$	110,735

	December 31,
	2012		2011
Total assets:
Solutions	$	438,663	$	321,384
Systems	156,484		179,154
Software	45,948		38,949
Corporate and other	179,488		134,571
Total	$	820,583	$	674,058

	December 31,
	2012		2011
Total assets by geographic area:
North America	$	533,035	$	463,287
Europe	91,101		59,730
Middle East	130,070		111,336
Latin America	51,692		28,692
Other	14,685		11,013
Total	$	820,583	$	674,058

Intersegment sales are insignificant for all periods presented. Corporate assets include all assets specifically related to corporate personnel and operations, a majority of cash and cash equivalents, and the investment in INOVA Geophysical. Depreciation and amortization expense is allocated to segments based upon use of the underlying assets.

A summary of net revenues by geographic area follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Europe	$	200,589	$	160,230	$	136,846
North America	164,157		155,877		177,480
Asia Pacific	55,028		78,777		51,496
Latin America	46,212		12,199		45,954
Middle East	37,471		28,227		10,536
Africa	18,469		7,926		18,417
Commonwealth of Independent States	4,391		11,385		3,593
Total	$	526,317	$	454,621	$	444,322

Net revenues are attributed to geographic areas on the basis of the ultimate destination of the equipment or service, if known, or the geographic area imaging services are provided. If the ultimate destination of such equipment is not known, net revenues are attributed to the geographic area of initial shipment.

XML

Equity Method Investment in INOVA Geophysical (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Feb. 12, 2013 Member	Dec. 31, 2012	Mar. 25, 2010	Mar. 24, 2010
Equity Method Investments and Joint Ventures [Abstract]
Percentage of equity method investment				49.00%	49.00%	49.00%
BGP interest in INOVA Geophysical			51.00%
Number of member appointed by related party (BGP)			4
Number of member appointed by Company			3
Approximate excess of inventory reserve included in Gross profit loss	$ 15.7	$ 19.3

XML

Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of finite intangible assets, net

A summary of intangible assets, net, is as follows (in thousands):

	December 31, 2012
	Gross Amount		Accumulated Amortization			Net
Customer relationships	$	42,397	$	(28,909	)	$	13,488
Intellectual property rights	4,300		(2,947		)	1,353
Proprietary technology, trade names, and patents	19,008		(19,008		)	—
Total	$	65,705	$	(50,864	)	$	14,841

	December 31, 2011
	Gross Amount		Accumulated Amortization			Net
Customer relationships	$	42,194	$	(25,529	)	$	16,665
Intellectual property rights	3,350		(2,299		)	1,051
Proprietary technology, trade names, and patents	18,985		(18,985		)	—
Total	$	64,529	$	(46,813	)	$	17,716

Estimated future amortization expense

A summary of the estimated amortization expense for the next five years is as follows (in thousands):

Years Ended December 31,
2013	$	3,512
2014	$	2,823
2015	$	2,411
2016	$	1,962
2017	$	1,670

XML

Restructuring Activities

12 Months Ended

Dec. 31, 2012

Restructuring and Related Activities [Abstract]

Restructuring Activities

Restructuring Activities

Due to the formation of INOVA Geophysical, the Company consolidated certain of its Stafford, Texas-based operations, which resulted in the Company permanently ceasing to use certain leased facilities as of March 31, 2010. The Company determined that the fair value of its remaining costs to be incurred under its lease of these facilities was approximately $8.2 million. After considering all deferred items on the Company’s balance sheet associated with this lease, the Company recorded a charge to its loss on the disposition of its land equipment businesses of $5.0 million. As of December 31, 2011, the Company had a liability of $5.9 million. During 2012, the Company made cash payments of $1.2 million and accrued $0.4 million related to accretion expense, resulting in a remaining liability of $5.1 million as of December 31, 2012.

In 2011, the Company initiated a restructuring of its Sensor geophone operations in the Netherlands, which included reducing headcount at this location by approximately 30%. As of December 31, 2011, the Company accrued a liability of $2.4 million associated with severance costs for these employees and recorded the corresponding expense within general, administrative and other operating expenses for 2011. During 2012, the Company made cash severance payments of $2.3 million, resulting in a remaining liability of less than $0.1 million as of December 31, 2012.

XML

Legal Matters

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Legal Matters

Legal Matters

WesternGeco

In June 2009, WesternGeco L.L.C. (“WesternGeco”) filed a lawsuit against the Company in the United States District Court for the Southern District of Texas, Houston Division. In the lawsuit, styled WesternGeco L.L.C. v. ION Geophysical Corporation, WesternGeco alleged that the Company had infringed several method and apparatus claims contained in four of its United States patents regarding marine seismic streamer steering devices. WesternGeco sought unspecified monetary damages and an injunction prohibiting the Company from making, using, selling, offering for sale or supplying any infringing products in the United States.

In June 2009, the Company filed an answer and counterclaims against WesternGeco, in which the Company denied that it had infringed WesternGeco’s patents and asserted that the WesternGeco patents were invalid or unenforceable. The Company also asserted that WesternGeco’s Q-Marine system, components and technology infringed upon a United States patent owned by the Company related to marine seismic streamer steering devices. In addition, the Company claimed that the lawsuit by WesternGeco was an illegal attempt by WesternGeco to control and restrict competition in the market for marine seismic surveys performed using laterally steerable streamers. In its counterclaims, the Company requested various remedies and relief, including a declaration that the WesternGeco patents were invalid or unenforceable, an injunction prohibiting WesternGeco from making, using, selling, offering for sale or supplying any infringing products in the United States, a declaration that the WesternGeco patents should be co-owned by the Company, and an award of unspecified monetary damages.

In June 2010, WesternGeco filed a lawsuit against various subsidiaries and affiliates of Fugro N.V. (“Fugro”), a seismic contractor customer of the Company, accusing Fugro of infringing the same United States patents regarding marine seismic streamer steering devices by planning to use certain equipment purchased from the Company on a survey located outside of U.S. territorial waters. The court approved the consolidation of the Fugro case with the case against the Company. Fugro filed a motion to dismiss the lawsuit, and in March 2011 the presiding judge granted Fugro’s motion to dismiss in part, on the basis that the alleged activities of Fugro would occur more than 12 miles from the U.S. coast and therefore are not actionable under U.S. patent infringement law.

In February 2012, the Court granted WesternGeco’s motions for summary judgment, dismissing the Company’s claims as plaintiff against WesternGeco for infringement, inventorship and inequitable conduct. In response to a Motion for Summary Judgment filed jointly by the Company and Fugro, the Court ruled in April 2012 that the Company did not directly infringe WesternGeco’s method patent claims. In a pre-trial ruling on June 29, 2012, the Court ruled that, if a particular patent claim of WesternGeco was held to be valid and enforceable at the upcoming trial, the Company’s DigiFIN^® lateral streamer control system, when combined with the Company’s lateral controller in the United States, would infringe one claim in one of WesternGeco’s asserted patents, U.S. Patent No. 7,293,520.

Trial began on July 23, 2012. During the trial, Fugro settled all claims asserted against it by WesternGeco and obtained a global license from WesternGeco. A verdict was returned by the jury on August 16, 2012, finding that the Company willfully infringed the claims contained in the four patents and awarding WesternGeco the sum of $105.9 million in damages, consisting of $12.5 million in reasonable royalty and $93.4 million in lost profits. The Company believes that the verdict is not consistent with applicable law or the facts or evidence in the case and, in September 2012, filed motions with the trial court to overturn all or portions of the verdict.

The ultimate outcome of the case in the trial court, and the content of the final judgment as a whole, rest with the presiding trial court judge, not the jury. The next step in the case is for the trial court judge to decide post-verdict motions filed by the parties and enter a judgment. The final judgment will determine the result of the trial prior to appeal. When he enters a judgment in the case, the judge can choose to follow the jury verdict or to take other actions, such as changing to a different result or ordering an entirely new trial. As of the filing date of this Annual Report on Form 10-K, the Court had not yet entered a judgment in the case.

If the Court enters a judgment that is adverse to the Company, the Company intends to appeal the judgment to the United States Court of Appeals for the Federal Circuit. WesternGeco would also have the right to elect to appeal any final judgment.

In rendering its verdict, the jury determined that the Company’s infringement was willful. Because the jury verdict indicated willfulness, the trial court judge will determine whether, in his independent judgment, the Company willfully infringed and he should declare this case to be “exceptional.” In order for the judge to find willful infringement and declare this case exceptional, WesternGeco must prove, by clear and convincing evidence, that the Company acted with objective recklessness and in bad faith, fraudulently or engaged in similar misconduct related to the case. If the judge finds willful infringement and declares this case to be exceptional, the judge has the discretion, but not the obligation, to enhance the damages amount, not to exceed a trebling of the final judgment damages award plus reasonable attorneys’ fees. The Company believes that, given its understanding and judgment of applicable law and the relevant facts and evidence in this case, and after considering the advice of counsel, it is unlikely that the Company will incur any additional loss as a result of the jury’s finding of willfulness.

Based on the Company’s understanding and judgment of applicable law and the facts and merits of this case, including appellate defenses, and after considering the advice of counsel, the Company has determined it is probable that, after exhaustion of all appeals, this lawsuit will result in a loss contingency to the Company in the amount of approximately $10 million, consisting of reasonable royalty damages, interest and court costs. The Company has adequately reserved for this loss contingency.

It is reasonably possible that the Company may not ultimately prevail in the litigation and appeals process and that the Company’s loss related to the lawsuit could exceed the amount currently accrued, up to the amount of the damages in the jury verdict plus interest and court costs, or even higher if the Court decides to enhance the damages as described above. However, the Company does not believe that a loss of this magnitude is probable. The Company’s assessment of its potential loss contingency may change in the future due to developments at the trial court or appellate court and other events, such as changes in applicable law, and such re-assessment could lead to the determination that no loss contingency is probable or that a greater loss contingency is probable, which could have a material effect on the Company’s financial statements.

As stated above, the Company intends to appeal the judgment to the United States Court of Appeals for the Federal Circuit if the trial court enters a judgment adverse to the Company. In order to appeal the judgment, the Company may be required to post an appeal bond for the full amount of damages entered in the judgment. In order to post and collateralize a bond of that size, the Company might need to utilize a combination of cash on hand, undrawn balances available under the revolving line of credit and possibly incur additional debt and/or equity financing. The posting and collateralization of such an appeal bond could have a possible adverse effect on the Company’s liquidity. If the Company is unable to post the appeal bond, the Company may be unable to stay enforcement of the judgment or appeal the case. At this time, the Company is unable to determine whether an appeal bond would be required or the amount of such an appeal bond. Similarly, the Company is unable to predict the timing of the final judgment being entered by the trial court or the timing of posting any required appeal bond.

Fletcher

In November 2009, Fletcher International Ltd. (“Fletcher”), the holder of the shares of the Company’s outstanding Series D Preferred Stock until June 2012, filed a lawsuit against the Company and certain of its directors in the Delaware Court of Chancery. In the lawsuit, styled Fletcher International, Ltd. v. ION Geophysical Corporation, et al, Fletcher alleged, among other things, that the Company violated Fletcher’s consent rights contained in the Series D Preferred Stock Certificates of Designation, by (a) the execution and delivery of a convertible promissory note to the Bank of China, New York Branch by one of our subsidiaries (incorporated in Luxembourg), in connection with a bridge loan funded in October 2009 by Bank of China, and (b) a Canadian subsidiary of the Company executing and delivering several promissory notes in 2008 in connection with the Company’s acquisition of ARAM Systems Ltd., Fletcher also alleged that the Company’s directors violated their fiduciary duties by allowing the subsidiaries to deliver the notes without Fletcher’s consent. In a Memorandum Opinion issued in May 2010 in response to a motion for partial summary judgment, the judge dismissed all of Fletcher’s claims against the named Company directors but also concluded that, because the bridge loan note executed by the Company’s Luxembourg subsidiary in 2009 was convertible into the Company’s common stock, Fletcher had the right to consent to the issuance of the note and that the Company had violated Fletcher’s consent rights by that subsidiary’s issuing the note without Fletcher’s consent. In March 2011, the judge dismissed certain additional claims asserted by Fletcher.

In May 2012, the judge ruled that Fletcher did not have the right to consent with respect to two promissory notes executed and delivered by the Canadian subsidiary in September 2008 in connection with the Company’s purchase of ARAM Systems Ltd., but that Fletcher did have the right to consent to the execution and delivery in December 2008 of a replacement promissory note in the principal amount of $35 million, and that the Company had violated Fletcher’s consent rights by the subsidiary’s executing and delivering the replacement promissory note without Fletcher’s consent.

In June 2012, Fletcher filed a voluntary petition for relief under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of New York. Fletcher’s shares of Series D Preferred Stock, which had been pledged by Fletcher to secure certain indebtedness, were sold by the pledgee to the affiliate of D.E. Shaw & Co., Inc. in June 2012. The Company does not believe that the acquisition of the shares by an affiliate of D. E. Shaw & Co., Inc. or the bankruptcy filing by Fletcher will have a material impact on Fletcher’s lawsuit against the Company.

The Company believes that the monetary damages suffered by Fletcher as a result of the Company’s subsidiaries executing and delivering the convertible note and the replacement note without Fletcher’s consent are nonexistent or nominal, and that the ultimate outcome of the lawsuit will not result in a material adverse effect on the Company’s financial condition or results of operations.

Sercel

In January 2010, the jury in a patent infringement lawsuit filed by the Company against seismic equipment provider Sercel, Inc. in the United States District Court for the Eastern District of Texas returned a verdict in the Company’s favor. In the lawsuit, styled Input/Output, Inc. et al v. Sercel, Inc., (5-6-cv-236), the Company alleged that Sercel’s 408, 428 and SeaRay digital seismic sensor units infringe the Company’s United States Patent No. 5,852,242, which is incorporated in the Company’s VectorSeis^® sensor technology. Products of the Company or INOVA Geophysical that are compatible with the VectorSeis technology include Scorpion^®, ARIES II^®, FireFly^®, Hawk^™ and VectorSeis Ocean seismic acquisition systems. The jury concluded that Sercel infringed the Company’s patent and that the Company’s patent was valid, and the jury awarded the Company $25.2 million in compensatory past damages. In response to post-verdict motions made by the parties, in September 2010, the presiding judge issued a series of rulings that (a) granted the Company’s motion for a permanent injunction to be issued prohibiting the manufacture, use or sale of the infringing Sercel products, (b) confirmed that the Company’s patent was valid, (c) confirmed that the jury’s finding of infringement was supported by the evidence and (d) disallowed $5.4 million of lost profits that were based on infringing products that were manufactured and delivered by Sercel outside of the United States, but were offered for sale by Sercel in the United States and involved underlying orders and payments received by Sercel in the United States. In addition, the judge concluded that the evidence supporting the jury’s finding that the Company was entitled to be awarded $9.0 million in lost profits associated with certain infringing pre-verdict marine sales by Sercel was too speculative and therefore disallowed that award of lost profits. As a result of the judge’s ruling, the Company was entitled to be awarded an additional amount of damages equal to a reasonable royalty on the infringing pre-verdict Sercel marine sales. After the Company learned that Sercel continued to make sales of infringing products after the January 2010 jury verdict was rendered, the Company filed motions with the court to seek additional compensatory damages for the post-verdict infringing sales and enhanced damages as a result of the willful nature of Sercel’s post-verdict infringement. In February 2011, the Court entered a final judgment and permanent injunction in the case. The final judgment awarded the Company $10.7 million in damages, plus interest, and the permanent injunction prohibits Sercel and parties acting in concert with Sercel from making, using, offering to sell, selling, or importing in the United States (which includes territorial waters of the United States) Sercel’s 408UL, 428XL and SeaRay digital sensor units, and all other products that are only colorably different from those products. Sercel and the Company appealed portions of the final judgment, and on February 17, 2012, the appellate court upheld the final judgment. In April 2012, Sercel paid the Company $12.0 million pursuant to the final judgment.

In its judgment, the Court also ordered that the additional damages to be paid by Sercel as a reasonable royalty on the infringing pre-verdict Sercel marine sales and the additional damages to be paid by Sercel resulting from post-verdict infringing sales would be determined in a separate proceeding to be conducted in the future. In December 2012, the Company and Sercel settled all remaining claims in exchange for $19.0 million and an agreement by Sercel to pay the Company royalties on future sales. Under this agreement, the Company has no continuing obligations.

Greatbatch

In 2002, the Company filed a lawsuit against operating subsidiaries of battery manufacturer Greatbatch, Inc., including its Electrochem division (collectively “Greatbatch”), in the 24th Judicial District Court for the Parish of Jefferson in the State of Louisiana. In the lawsuit, styled Input/Output, Inc. and I/O Marine Systems, Inc. v. Wilson Greatbatch Technologies, Inc., Wilson Greatbatch, Ltd. d/b/a Electrochem Lithium Batteries, and WGL Intermediate Holdings, Inc., Civil Action No. 578-881, Division “A”, the Company alleged that Greatbatch had fraudulently misappropriated the Company’s product designs and other trade secrets related to the batteries and battery pack used in the Company’s DigiBIRD^® marine towed streamer vertical control device and used the Company’s confidential information to manufacture and market competing batteries and battery packs. After a trial, on October 1, 2009 the jury concluded that Greatbatch had committed fraud, violated the Louisiana Unfair Trade Practices Act and breached a trust and nondisclosure agreement between Greatbatch and the Company, and awarded the Company approximately $21.7 million in compensatory damages. A judgment was entered consistent with the jury verdict. In December 2010, the Company and Greatbatch settled the lawsuit, pursuant to which Greatbatch paid the Company $25.0 million in full satisfaction of the judgment. Upon the cash receipt, the Company recorded a gain on legal settlement of $24.5 million, net of fees paid to attorneys, in 2010.

Other

The Company has been named in various other lawsuits or threatened actions that are incidental to its ordinary business. Litigation is inherently unpredictable. Any claims against the Company, whether meritorious or not, could be time-consuming, cause the Company to incur costs and expenses, require significant amounts of management time and result in the diversion of significant operational resources. The results of these lawsuits and actions cannot be predicted with certainty. Management currently believes that the ultimate resolution of these matters will not have a material adverse impact on the financial condition, results of operations or liquidity of the Company.

XML

Selected Quarterly Information (Unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended						12 Months Ended			15 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Summary of selected quarterly information
Service revenues	$ 122,082	$ 93,023	$ 72,844	$ 66,634	$ 49,516	$ 58,165	$ 354,583	$ 265,586	$ 279,120	$ 84,011	$ 73,894
Product revenues	50,988	43,300	32,370	45,076	39,016	32,387	171,734	189,035	165,202	75,872	41,760
Revenues	173,070	136,323	105,214	111,710	88,532	90,552	526,317	454,621	444,322	159,883	115,654
Gross profit	72,744	55,958	45,943	41,156	33,631	31,139	215,801	173,445	165,733	64,617	44,058
Income from operations	24,863	25,049	12,972	11,643	8,800	6,071	74,527	66,795	52,847	33,428	18,496
Interest expense, net	(1,146)	(1,237)	(1,364)	(1,518)	(1,187)	(1,615)	(5,265)	(5,784)	(30,770)	(1,600)	(1,382)
Equity in (earnings) losses of INOVA Geophysical	(4,264)	(1,684)	3,777	2,468	(4,173)	(860)	297	(22,862)	(23,724)	(13,018)	(4,811)
Other income (expense)	17,851	(936)	895	(686)	497	(2,999)	17,124	(3,447)	(8,249)	(1,144)	199
Income tax expense	10,191	6,037	4,184	3,445	1,085	147	23,857	10,136	26,942	5,420	3,484
Net income attributable to noncontrolling interests	53	42	281	113	44	25	489	208	0	105	34
Preferred stock dividends	338	338	338	338	338	338	1,352	1,352	1,936	338	338
Net income (loss) applicable to common shares	$ 26,828	$ 14,859	$ 12,039	$ 8,237	$ 2,558	$ 137	$ 61,963	$ 23,422	$ (38,774)	$ 12,013	$ 8,714
Net income per share:
Basic	$ 0.17	$ 0.10	$ 0.08	$ 0.05	$ 0.02	$ 0.00	$ 0.40	$ 0.15	$ (0.27)	$ 0.08	$ 0.06
Diluted	$ 0.17	$ 0.09	$ 0.08	$ 0.05	$ 0.02	$ 0.00	$ 0.39	$ 0.15	$ (0.27)	$ 0.08	$ 0.06

XML

Segment and Geographic Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended			15 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Reclassified its previously reported results to reflect segment changes
Revenues	$ 173,070	$ 136,323	$ 105,214	$ 111,710	$ 88,532	$ 90,552	$ 526,317	$ 454,621	$ 444,322	$ 159,883	$ 115,654
Gross profit	72,744	55,958	45,943	41,156	33,631	31,139	215,801	173,445	165,733	64,617	44,058
Gross margin							41.00%	38.00%	37.00%
Total	24,863	25,049	12,972	11,643	8,800	6,071	74,527	66,795	52,847	33,428	18,496
Interest expense, net	(1,146)	(1,237)	(1,364)	(1,518)	(1,187)	(1,615)	(5,265)	(5,784)	(30,770)	(1,600)	(1,382)
Equity in (earnings) losses of INOVA Geophysical	(4,264)	(1,684)	3,777	2,468	(4,173)	(860)	297	(22,862)	(23,724)	(13,018)	(4,811)
Other income (expense)	17,851	(936)	895	(686)	497	(2,999)	17,124	(3,447)	(8,249)	(1,144)	199
Income (loss) before income taxes							86,683	34,702	(9,896)
Solutions [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							351,265	263,450	276,954
Gross profit							132,950	84,647	93,804
Gross margin							38.00%	32.00%	34.00%
Operating income loss before goodwill and intangible asset impairment							88,589	50,620	60,632
Solutions [Member] | New Venture [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							147,346	98,335	81,293
Solutions [Member] | Data Library [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							88,085	76,332	87,664
Solutions [Member] | New Venture and Data Library [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							235,431	174,667	168,957
Solutions [Member] | Data Processing [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							115,834	88,783	107,997
Systems [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							131,996	153,004	114,226
Gross profit							50,790	61,109	48,557
Gross margin							38.00%	40.00%	43.00%
Operating income loss before goodwill and intangible asset impairment							10,132	33,034	27,749
Systems [Member] | Towed Streamer [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							77,769	111,453	83,567
Systems [Member] | Ocean Bottom [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							14,823	960	1,876
Systems [Member] | Other [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							39,404	40,591	28,783
Software [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							43,056	38,167	36,631
Gross profit							32,061	27,689	24,356
Gross margin							74.00%	73.00%	66.00%
Operating income loss before goodwill and intangible asset impairment							28,129	24,463	21,936
Software [Member] | Software Systems [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							39,738	36,031	34,465
Software [Member] | Services [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							3,318	2,136	2,166
Corporate and Other [Member]
Reclassified its previously reported results to reflect segment changes
Operating income loss before goodwill and intangible asset impairment							(52,323)	(41,322)	(47,847)
Legacy Land Systems (INOVA) [Member]
Reclassified its previously reported results to reflect segment changes
Revenues							0	0	16,511
Gross profit							0	0	(984)
Gross margin							0.00%	0.00%	(6.00%)
Operating income loss before goodwill and intangible asset impairment							$ 0	$ 0	$ (9,623)

XML

Accrued Expenses (Tables)

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Summary of accrued expenses

A summary of accrued expenses is as follows (in thousands):

	December 31,
	2012		2011
Accrued multi-client data library acquisition costs	$	47,678	$	26,871
Compensation, including compensation-related taxes and commissions	28,993		19,398
Deferred income tax liability	20,556		5,695
Accrued legal contingency	10,000		—
Income tax payable	8,348		1,211
Other	8,520		8,209
Total accrued expenses	$	124,095	$	61,384

XML

Selected Quarterly Information (Unaudited)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Information (Unaudited)

Selected Quarterly Information — (Unaudited)

A summary of selected quarterly information is as follows (in thousands, except per share amounts):

	Three Months Ended
Year Ended December 31, 2012	March 31			June 30			September 30			December 31
Service revenues	$	66,634		$	72,844		$	93,023		$	122,082
Product revenues	45,076			32,370			43,300			50,988
Total net revenues	111,710			105,214			136,323			173,070
Gross profit	41,156			45,943			55,958			72,744
Income from operations	11,643			12,972			25,049			24,863
Interest expense, net	(1,518		)	(1,364		)	(1,237		)	(1,146		)
Equity in earnings (losses) of INOVA Geophysical	2,468			3,777			(1,684		)	(4,264		)
Other income (expense)	(686		)	895			(936		)	17,851
Income tax expense	3,445			4,184			6,037			10,191
Net income attributable to noncontrolling interests	113			281			42			53
Preferred stock dividends	338			338			338			338
Net income applicable to common shares	$	8,237		$	12,039		$	14,859		$	26,828
Net income per share:
Basic	$	0.05		$	0.08		$	0.10		$	0.17
Diluted	$	0.05		$	0.08		$	0.09		$	0.17

	Three Months Ended
Year Ended December 31, 2011	March 31			June 30			September 30			December 31
Service revenues	$	58,165		$	49,516		$	73,894		$	84,011
Product revenues	32,387			39,016			41,760			75,872
Total net revenues	90,552			88,532			115,654			159,883
Gross profit	31,139			33,631			44,058			64,617
Income from operations	6,071			8,800			18,496			33,428
Interest expense, net	(1,615		)	(1,187		)	(1,382		)	(1,600		)
Equity in losses of INOVA Geophysical	(860		)	(4,173		)	(4,811		)	(13,018		)
Other income (expense)	(2,999		)	497			199			(1,144		)
Income tax expense	147			1,085			3,484			5,420
Net income attributable to noncontrolling interests	25			44			34			105
Preferred stock dividends	338			338			338			338
Net income applicable to common shares	$	137		$	2,558		$	8,714		$	12,013
Net income per share:
Basic	$	—		$	0.02		$	0.06		$	0.08
Diluted	$	—		$	0.02		$	0.06		$	0.08

XML

Certain Relationships and Related Party Transactions

12 Months Ended

Dec. 31, 2012

Related Party Transactions [Abstract]

Certain Relationships and Related Party Transactions

Certain Relationships and Related Party Transactions

For 2012, 2011 and 2010, the Company recorded revenues from BGP of $13.7 million, $34.5 million and $16.9 million, respectively. A majority of the revenues from BGP for 2011 related to the sale of a twelve-streamer DigiSTREAMER system. Receivables due from BGP were $1.6 million and $15.2 million at December 31, 2012 and 2011, respectively. BGP owned approximately 15.2% (purchased in March 2010) of the Company’s outstanding common stock as of December 31, 2012. For 2012, the Company paid to BGP $2.0 million for seismic acquisition services provided on one of the Company’s new venture projects. At December 31, 2012, the Company owed BGP $9.3 million for unpaid services received for that project.

Until June 2012, the Company was a party to a support and transition agreement to provide INOVA Geophysical with certain administrative services including tax, legal, information technology, treasury, human resources, bookkeeping, facilities and marketing services. The terms of the arrangement provided for INOVA Geophysical to pay approximately $0.3 million per month (beginning in April 2010) for services and to reimburse the Company for third-party and lease costs incurred by the Company directly related to the administrative support of INOVA Geophysical. The Company was paid $3.5 million under this arrangement in 2012. The term of the agreement was for two years and terminated on June 30, 2012.

Mr. James M. Lapeyre, Jr. is the Chairman of the Board on ION’s board of directors and a significant equity owner of Laitram, L.L.C. (Laitram), and he has served as president of Laitram and its predecessors since 1989. Laitram is a privately-owned, New Orleans-based manufacturer of food processing equipment and modular conveyor belts. Mr. Lapeyre and Laitram together owned approximately 6.4% of the Company’s outstanding common stock as of December 31, 2012.

The Company acquired DigiCourse, Inc., the Company’s marine positioning products business, from Laitram in 1998. In connection with that acquisition, the Company entered into a Continued Services Agreement with Laitram under which Laitram agreed to provide the Company certain bookkeeping, software, manufacturing, and maintenance services. Manufacturing services consist primarily of machining of parts for the Company’s marine positioning systems. The term of this agreement expired in September 2001 but the Company continues to operate under its terms. In addition, from time to time, when the Company has requested, the legal staff of Laitram has advised the Company on certain intellectual property matters with regard to the Company’s marine positioning systems. Under an amended lease of commercial property dated February 1, 2006, between Lapeyre Properties, L.L.C. (an affiliate of Laitram) and ION, the Company has leased certain office and warehouse space from Lapeyre Properties through January 2014, with the right to terminate the lease sooner upon 12 months’ notice. During 2012, the Company paid Laitram and its affiliates a total of approximately $4.1 million, which consisted of approximately $3.2 million for manufacturing services, $0.6 million for rent and other pass-through third party facilities charges, and $0.3 million for reimbursement for costs related to providing administrative and other back-office support services in connection with the Company’s Louisiana marine operations. For the 2011 and 2010 fiscal years, the Company paid Laitram and its affiliates a total of approximately $6.3 million and $3.1 million, respectively, for these services. In the opinion of the Company’s management, the terms of these services are fair and reasonable and as favorable to the Company as those that could have been obtained from unrelated third parties at the time of their performance.

XML

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

General Description and Principles of Consolidation

ION Geophysical Corporation and its subsidiaries offer a full suite of services and products for seismic data acquisition and processing. The consolidated financial statements include the accounts of ION Geophysical Corporation and its majority-owned subsidiaries (collectively referred to as the “Company” or “ION”). Intercompany balances and transactions have been eliminated. Certain reclassifications were made to previously reported amounts in the consolidated financial statements and notes thereto to make them consistent with the current presentation format.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates are made at discrete points in time based on relevant market information. These estimates may be subjective in nature and involve uncertainties and matters of judgment and, therefore, cannot be determined with precision. Areas involving significant estimates include, but are not limited to, accounts and unbilled receivables, inventory valuation, sales forecasts related to multi-client data libraries, goodwill and intangible asset valuation and deferred taxes. Actual results could materially differ from those estimates.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. At December 31, 2012 and 2011, there was $1.5 million and $3.3 million, respectively, of short-term restricted cash used to secure standby and commercial letters of credit, which is included within Prepaid Expenses and Other Current Assets.

Short-term Investments

Short-term investments are comprised solely of bank certificates of deposit denominated in U.S. dollars with original maturities in excess of three months and represent the investment of excess cash that is available for current operations. The Company recorded these investments on its balance sheet at cost. These investments matured in February 2012.

Accounts and Unbilled Receivables

Accounts and unbilled receivables are recorded at cost, less the related allowance for doubtful accounts. The Company considers current information and events regarding the customers’ ability to repay their obligations, such as the length of time the receivable balance is outstanding, the customers’ credit worthiness and historical experience. Unbilled receivables relate to revenues recognized on multi-client surveys and imaging services on a proportionate basis and on licensing of multi-client data libraries for which invoices have not yet been presented to the customer.

Inventories

Inventories are stated at the lower of cost (primarily first-in, first-out method) or market. The Company provides reserves for estimated obsolescence or excess inventory equal to the difference between cost of inventory and its estimated market value based upon assumptions about future demand for the Company’s products, market conditions and the risk of obsolescence driven by new product introductions.

Property, Plant, Equipment and Seismic Rental Equipment

Property, plant, equipment and seismic rental equipment are stated at cost. Depreciation expense is provided straight-line over the following estimated useful lives:

	Years
Machinery and equipment	3-7
Buildings	5-25
Seismic rental equipment	3-5
Leased equipment and other	3-10

Expenditures for renewals and betterments are capitalized; repairs and maintenance are charged to expense as incurred. The cost and accumulated depreciation of assets sold or otherwise disposed of are removed from the accounts and any gain or loss is reflected in operating expenses.

The Company evaluates the recoverability of long-lived assets, including property, plant, equipment and seismic rental equipment, when indicators of impairment exist, relying on a number of factors including operating results, business plans, economic projections, and anticipated future cash flows. Impairment in the carrying value of an asset held for use is recognized whenever anticipated future cash flows (undiscounted) from an asset are estimated to be less than its carrying value. The amount of the impairment recognized is the difference between the carrying value of the asset and its fair value.

Multi-Client Data Library

The multi-client data library consists of seismic surveys that are offered for licensing to customers on a non-exclusive basis. The capitalized costs include costs paid to third parties for the acquisition of data and related activities associated with the data creation activity and direct internal processing costs, such as salaries, benefits, computer-related expenses, and other costs incurred for seismic data project design and management. For 2012, 2011, and 2010, the Company capitalized, as part of its multi-client data library, $3.8 million, $2.4 million, and $2.8 million, respectively, of direct internal processing costs. At December 31, 2012 and 2011, multi-client data library costs and accumulated amortization consisted of the following (in thousands):

	December 31,
	2012			2011
Gross costs of multi-client data creation	$	689,464		$	545,836
Less accumulated amortization	(459,149		)	(370,068		)
Total	$	230,315		$	175,768

The Company’s method of amortizing the costs of an in-process multi-client data library (the period during which the seismic data is being acquired and/or processed, referred to as the “new venture” phase) consists of determining the percentage of actual revenue recognized to the total estimated revenues (which includes both revenues estimated to be realized during the new venture phase and estimated revenues from the licensing of the resulting “on-the-shelf” data survey), and multiplying that percentage by the total cost of the project (the sales forecast method). The Company considers a multi-client data survey to be complete when all work on the creation of the seismic data is finished and that data survey is available for licensing. Once a multi-client data survey is complete, the data survey is considered “on-the-shelf” and the Company’s method of amortization is then the greater of (i) the sales forecast method or (ii) the straight-line basis over a four-year period. The greater amount of amortization resulting from the sales forecast method or the straight-line amortization policy is applied on a cumulative basis at the individual survey level. Under this policy, the Company first records amortization using the sales forecast method. The cumulative amortization recorded for each survey is then compared with the cumulative straight-line amortization. The four-year period utilized in this cumulative comparison commences when the data survey is determined to be complete. If the cumulative straight-line amortization is higher for any specific survey, additional amortization expense is recorded, resulting in accumulated amortization being equal to the cumulative straight-line amortization for such survey. The Company has determined the amortization period of four years based upon its historical experience that indicates that the majority of its revenues from multi-client surveys are derived during the acquisition and processing phases and during four years subsequent to survey completion.

The Company estimates the ultimate revenue expected to be derived from a particular seismic data survey over its estimated useful economic life to determine the costs to amortize, if greater than straight-line amortization. That estimate is made by the Company at the project’s initiation. For a completed multi-client survey, the Company reviews the estimate quarterly. If during any such review, the Company determines that the ultimate revenue for a survey is expected to be materially more or less than the original estimate of ultimate revenue for such survey, the Company decreases or increases (as the case may be) the amortization rate attributable to the future revenue from such survey. In addition, in connection with such reviews, the Company evaluates the recoverability of the multi-client data library, and, if required under Accounting Standards Codification (“ASC”) 360-10 “Impairment and Disposal of Long-Lived Assets” (“ASC 360-10”), records an impairment charge with respect to such data. There were no significant impairment charges associated with the Company’s multi-client data library during 2012, 2011 and 2010.

Cost Method Investments

Certain of the Company’s investments are accounted for under the cost method. The Company’s cost method investments that have quoted prices from active markets are classified as “available-for-sale” and revalued at each reporting date, with all unrealized gains or losses, net of taxes, included in accumulated other comprehensive income (outside of earnings) until realized or until such time that a decline in fair value below cost is deemed to be other-than-temporary. The Company’s cost method investments for which quoted market prices are not available are recorded at cost and reviewed periodically if there are events or changes in circumstances that may have a significant adverse effect on the fair value of the investments.

Equity Method Investments

The Company uses the equity method of accounting for investments in entities in which the Company has an ownership interest between 20% and 50% and exercises significant influence. Under this method, an investment is carried at the acquisition cost, plus the Company’s equity in undistributed earnings or losses since acquisition, less distributions received. As provided by ASC 815 “Investments,” the Company accounts for its share of earnings in INOVA Geophysical on a one fiscal quarter lag basis. See further discussion regarding the Company’s equity method investment in INOVA Geophysical at Note 3 “— Equity Method Investment in INOVA Geophysical.”

Noncontrolling Interests

The Company has both redeemable and non-redeemable noncontrolling interests. Non-redeemable noncontrolling interests in majority-owned affiliates is reported as a separate component of equity in “Noncontrolling interests” in the Consolidated Balance Sheets. Redeemable Noncontrolling Interests include noncontrolling ownership interests which the holders have the rights, at certain times, to require the Company to acquire their ownership interest in those entities. These interests are not considered to be permanent equity and are reported in the mezzanine section of the Consolidated Balance Sheets at the greater of their carrying value or redemption value at the balance sheet date. “Net income (loss)” in the Consolidated Statements of Operations is attributable to both controlling and noncontrolling interests.

Goodwill and Other Intangible Assets

Goodwill is allocated to reporting units, which are either the operating segment or one reporting level below the operating segment. For purposes of performing the impairment test for goodwill as required by ASC 350 “Intangibles — Goodwill and Other,” (“ASC 350”) the Company established the following reporting units: Solutions, Software and Marine Systems.

In accordance with ASC 350, the Company is required to evaluate the carrying value of its goodwill at least annually for impairment, or more frequently if facts and circumstances indicate that it is more likely than not impairment has occurred. The Company formally evaluates the carrying value of its goodwill for impairment as of December 31 for each of its reporting units. The Company first performs a qualitative assessment by evaluating relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit exceeds its carrying amount. If the Company is unable to conclude qualitatively that it is more likely than not that a reporting unit’s fair value exceeds its carrying value, then it will use a two-step quantitative assessment of the fair value of a reporting unit. To determine the fair value of these reporting units, the Company uses a discounted future returns valuation model, which includes a variety of level 3 inputs. The key inputs for the model include the operational five-year forecast for the Company and the then-current market discount factor. Additionally, the Company compared the sum of the estimated fair values of the individual reporting units less consolidated debt to the Company’s overall market capitalization as reflected by the Company’s stock price. If the carrying value of a reporting unit that includes goodwill is determined to be more than the fair value of the reporting unit, there exists the possibility of impairment of goodwill. An impairment loss of goodwill is measured in two steps by first allocating the fair value of the reporting unit to net assets and liabilities including recorded and unrecorded intangible assets to determine the implied carrying value of goodwill. The next step is to measure the difference between the carrying value of goodwill and the implied carrying value of goodwill, and, if the implied carrying value of goodwill is less than the carrying value of goodwill, an impairment loss is recorded equal to the difference. See further discussion below at Note 8 “— Goodwill.”

The intangible assets, other than goodwill, relate to customer relationships and intellectual property rights. The Company amortizes it’s intellectual property rights over the estimated periods of benefit (ranging from 4 to 5 years). The Company amortizes its customer relationship intangible assets on an accelerated basis over a 10 to 15-year period, using the undiscounted cash flows of the initial valuation models. The Company uses an accelerated basis as these intangible assets were initially valued using an income approach, with an attrition rate that resulted in a pattern of declining cash flows over a 10 to 15-year period.

Following the guidance of ASC 360, the Company reviews the carrying values of these intangible assets for impairment if events or changes in the facts and circumstances indicate that their carrying value may not be recoverable. Any impairment determined is recorded in the current period and is measured by comparing the fair value of the related asset to its carrying value. See further discussion below at Note 9 “— Intangible Assets.”

Fair Value of Financial Instruments

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable, accrued multi-client data library royalties, investment in two convertible notes from a privately owned U.S.-based technology company, interest rate caps, long-term debt and an investment in shares of Reservoir Exploration Technology, ASA (“RXT”), a Norwegian seismic contractor. The carrying amounts of cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable and accrued multi-client data library royalties approximate fair value due to the highly liquid nature of these instruments. The fair value of the long-term debt is calculated using a market approach based upon Level 3 inputs, including an estimated interest rate reflecting current market conditions. The Company performs a fair value analysis with respect to its investment in the convertible notes using a market approach based upon Level 3 inputs, including the terms and likelihood of an investment event and the time to conversion or repayment. The Company performs a fair value analysis of its investment in RXT based upon Level 1 inputs, utilizing quoted prices from active markets.

Revenue Recognition

The Company derives revenue from the sale of (i) multi-client and proprietary surveys, licenses of “on-the-shelf” data libraries and imaging services within its Solutions segment; (ii) acquisition systems and other seismic equipment within its Systems segment; and (iii) navigation, survey and quality control software systems within its Software segment. All revenues of the Solutions segment and the services component of revenues for the Software segment are classified as services revenues. All other revenues are classified as product revenues.

Multi-Client and Proprietary Surveys, Data Libraries and Imaging Services — As multi-client surveys are being designed, acquired and/or processed (referred to as the “new venture” phase), the Company enters into non-exclusive licensing arrangements with its customers. License revenues from these new venture survey projects are recognized during the new venture phase as the seismic data is acquired and/or processed on a proportionate basis as work is performed. Under this method, the Company recognizes revenues based upon quantifiable measures of progress, such as kilometers acquired or days processed. Upon completion of a multi-client seismic survey, the seismic survey is considered “on-the-shelf,” and licenses to the survey data are granted to customers on a non-exclusive basis. Revenues on licenses of completed multi-client data surveys are recognized when (a) a signed final master geophysical data license agreement and accompanying supplemental license agreement are returned by the customer; (b) the purchase price for the license is fixed or determinable; (c) delivery or performance has occurred; (d) and no significant uncertainty exists as to the customer’s obligation, willingness or ability to pay. In limited situations, the Company has provided the customer with a right to exchange seismic data for another specific seismic data set. In these limited situations, the Company recognizes revenue at the earlier of the customer exercising its exchange right or the expiration of the customer’s exchange right.

The Company also performs seismic surveys under contracts to specific customers, whereby the seismic data is owned by those customers. Revenue is recognized as the seismic data is acquired and/or processed on a proportionate basis as work is performed. The Company uses quantifiable measures of progress consistent with its multi-client surveys.

Revenues from all imaging and other services are recognized when persuasive evidence of an arrangement exists, the price is fixed or determinable, and collectibility is reasonably assured. Revenues from contract services performed on a day-rate basis are recognized as the service is performed.

Acquisition Systems and Other Seismic Equipment — For the sales of acquisition systems and other seismic equipment, the Company follows the requirements of ASC 605-10 “Revenue Recognition” and recognizes revenue when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the acquisition system or other seismic equipment is delivered to the customer and risk of ownership has passed to the customer, or, in the case in which a substantive customer-specified acceptance clause exists in the contract, the later of delivery or when the customer-specified acceptance is obtained.

Software — For the sales of navigation, survey and quality control software systems, the Company follows the requirements of ASC 985-605 “Software Revenue Recognition” (“ASC 985-605”). The Company recognizes revenue from sales of these software systems when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the software is delivered to the customer and risk of ownership has passed to the customer, or, in the limited case in which a substantive customer-specified acceptance clause exists, the later of delivery or when the customer-specified acceptance is obtained. These arrangements generally include the Company providing related services, such as training courses, engineering services and annual software maintenance. The Company allocates revenue to each element of the arrangement based upon vendor-specific objective evidence (“VSOE”) of fair value of the element or, if VSOE is not available for the delivered element, the Company applies the residual method.

In addition to perpetual software licenses, the Company offers time-based software licenses. For time-based licenses, the Company recognizes revenue ratably over the contract term, which is generally two to five years.

Multiple-element Arrangements — When separate elements (such as an acquisition system, other seismic equipment and/or imaging services) are contained in a single sales arrangement, or in related arrangements with the same customer, the Company follows the requirements of ASC 605-25 “Accounting for Multiple-Element Revenue Arrangement” (“ASC 605-25”). The Company adopted this guidance as of January 1, 2010. Accordingly, the Company applied this guidance to transactions initiated or materially modified on or after January 1, 2010. The guidance does not apply to software sales accounted for under ASC 985-605. The Company also adopted, in the same period, guidance within ASC 985-605 that excludes from its scope revenue arrangements that include both tangible products and software elements, such that the tangible products contain both software and non-software components that function together to deliver the tangible product’s essential functionality.

This guidance requires that arrangement consideration be allocated at the inception of an arrangement to all deliverables using the relative selling price method. The Company allocates arrangement consideration to each deliverable qualifying as a separate unit of accounting in an arrangement based on its relative selling price. The Company determines its selling price using VSOE, if it exists, or otherwise third-party evidence (“TPE”). If neither VSOE nor TPE of selling price exists for a unit of accounting, the Company uses estimated selling price (“ESP”). The Company generally expects that it will not be able to establish TPE due to the nature of the markets in which the Company competes, and, as such, the Company typically will determine its selling price using VSOE or, if not available, ESP. VSOE is generally limited to the price charged when the same or similar product is sold on a standalone basis. If a product is seldom sold on a standalone basis, it is unlikely that the Company can determine VSOE for the product.

The objective of ESP is to determine the price at which the Company would transact if the product were sold by the Company on a standalone basis. The Company’s determination of ESP involves a weighting of several factors based on the specific facts and circumstances of the arrangement. Specifically, the Company considers the anticipated margin on the particular deliverable, the selling price and profit margin for similar products and the Company’s ongoing pricing strategy and policies.

The Company believes this guidance principally impacts its Systems segment. A typical arrangement within the Systems segment involves the sale of various products of the Company’s acquisition systems and other seismic equipment. Products under these arrangements are often delivered to the customer within the same period, but in certain situations, depending upon product availability and the customer’s delivery requirements, the products could be delivered to the customer at different times. In these situations, the Company considers its products to be separate units of accounting provided the delivered product has value to the customer on a standalone basis. The Company considers a deliverable to have standalone value if the product is sold separately by the Company or another vendor or could be resold by the customer. Further, the Company’s revenue arrangements generally do not include a general right of return relative to the delivered products.

Product Warranty — The Company generally warrants that its manufactured equipment will be free from defects in workmanship, materials and parts. Warranty periods generally range from 30 days to three years from the date of original purchase, depending on the product. The Company provides for estimated warranty as a charge to costs of sales at the time of sale. However, new information may become available, or circumstances (such as applicable laws and regulations) may change, thereby resulting in an increase or decrease in the amount required to be accrued for such matters (and therefore a decrease or increase in reported net income in the period of such change). In limited cases, the Company has provided indemnification of customers for potential intellectual property infringement claims relating to products sold.

Research, Development and Engineering

Research, development and engineering costs primarily relate to activities that are designed to improve the quality of the subsurface image and overall acquisition economics of the Company’s customers. The costs associated with these activities are expensed as incurred. These costs include prototype material and field testing expenses, along with the related salaries and stock-based compensation, facility costs, consulting fees, tools and equipment usage, and other miscellaneous expenses associated with these activities.

Stock-Based Compensation

The Company accounts for stock-based compensation under the provisions of ASC 718, “Compensation – Stock Compenstion” (“ASC 718”). The Company estimates the value of stock option awards on the date of grant using the Black-Scholes option pricing model. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of subjective variables. These variables include, but are not limited to, expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends. The Company recognizes stock-based compensation on the straight-line basis over the service period of each award (generally the award’s vesting period).

Income Taxes

Income taxes are accounted for under the liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, including operating loss and tax credit carry-forwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply in the years in which those temporary differences are expected to be recovered or settled. The Company records a valuation allowance when it is more likely than not that all or a portion of deferred tax assets will not be realized. (see Note 16 “— Income Taxes”). The effect on deferred income tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

Comprehensive Net Income (Loss)

Comprehensive net income (loss) as shown in the Consolidated Statements of Comprehensive Income (Loss) and the balance in Accumulated Other Comprehensive Income (Loss) as shown in the Consolidated Balance Sheets as of December 31, 2012 and 2011, consist of foreign currency translation adjustments, equity interest in INOVA Geophysical’s accumulated other comprehensive income and unrealized gains or losses on available-for-sale securities.

Foreign Currency Gains and Losses

Assets and liabilities of the Company’s subsidiaries operating outside the United States that account in a functional currency other than the U.S. dollar have been translated to U.S. dollars using the exchange rate in effect at the balance sheet date. Results of foreign operations have been translated using the average exchange rate during the periods of operation. Resulting translation adjustments have been recorded as a component of Accumulated Other Comprehensive Income (Loss). Foreign currency transaction gains and losses are included in the Consolidated Statements of Operations in Other Income (Expense) as they occur. Total foreign currency transaction gains (losses) were $(1.9) million, $(1.7) million and $1.0 million for 2012, 2011, and 2010, respectively.

Concentration of Foreign Sales Risk

The majority of the Company’s foreign sales are denominated in U.S. dollars. For 2012, 2011 and 2010, international sales comprised 69%, 66% and 60%, respectively, of total net revenues. Since 2008, global economic problems and uncertainties have generally increased in scope and nature. To the extent that world events or economic conditions negatively affect the Company’s future sales to customers in many regions of the world, as well as the collectability of the Company’s existing receivables, the Company’s future results of operations, liquidity, and financial condition would be adversely affected.

XML

Subsequent Events

12 Months Ended

Dec. 31, 2012

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

In February 2013, the Company purchased a 30% interest in the joint venture, GeoRXT B.V. (“GeoRXT”), from RXT for $1.5 million. GeoRXT is headquartered in Rio de Janeiro, Brazil, and specializes in seismic acquisition using ocean bottom cables. Additionally, the Company provided an $8.0 million loan to GeoRXT, which includes a guaranty by GeoRXT’s parent. GeoRXT is obligated to repay this loan to the Company on or before May 10, 2013.

XML

Stockholders' Equity and Stock-Based Compensation (Details 4)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Assumptions used to calculate the fair value of option and SAR award on the grant date using the Black-Scholes option pricing model
Risk-free interest rates, minimum	0.70%	1.10%	1.50%
Risk-free interest rates, maximum	1.00%	1.90%	2.50%
Expected lives (in years)	5 years 6 months	5 years 6 months	5 years 6 months
Expected dividend yield	0.00%	0.00%	0.00%
Expected volatility, minimum	67.80%	65.90%	67.40%
Expected volatility, maximum	72.20%	80.20%	65.90%
Minimum [Member]
Assumptions used to calculate the fair value of option and SAR award on the grant date using the Black-Scholes option pricing model
Expected lives (in years)			3 years 7 months 6 days
Maximum [Member]
Assumptions used to calculate the fair value of option and SAR award on the grant date using the Black-Scholes option pricing model
Expected lives (in years)			5 years 6 months

XML

Inventories (Tables)

12 Months Ended

Dec. 31, 2012

Inventory Disclosure [Abstract]

Summary of Inventories

A summary of inventories is as follows (in thousands):

	December 31,
	2012			2011
Raw materials and purchased subassemblies	$	49,421		$	45,829
Work-in-process	8,613			8,294
Finished goods	26,880			29,059
Reserve for excess and obsolete inventories	(14,239		)	(13,037		)
Total	$	70,675		$	70,145

XML

Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2012
Minimum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	3 years
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	5 years
Minimum [Member] | Rental equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	3 years
Minimum [Member] | Leased equipment and other [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	3 years
Maximum [Member] | Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	7 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	25 years
Maximum [Member] | Rental equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	5 years
Maximum [Member] | Leased equipment and other [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment useful life, Minimum	10 years

XML

Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Estimated future amortization expense
2013	$ 3,512
2014	2,823
2015	2,411
2016	1,962
2017	$ 1,670

XML

Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 60,971	$ 42,402
Short-term investments	0	20,000
Accounts receivable, net	127,136	130,612
Unbilled receivables	89,784	25,628
Inventories	70,675	70,145
Prepaid expenses and other current assets	25,605	13,460
Total current assets	374,171	302,247
Deferred income tax asset	28,414	17,645
Property, plant, equipment and seismic rental equipment net	33,772	24,771
Multi-client data library, net	230,315	175,768
Investment in INOVA Geophysical	73,925	72,626
Goodwill	55,349	53,963
Intangible assets, net	14,841	17,716
Other assets	9,796	9,322
Total assets	820,583	674,058
Current liabilities:
Current maturities of long-term debt	3,496	5,770
Accounts payable	28,688	22,296
Accrued expenses	124,095	61,384
Accrued multi-client data library royalties	26,300	15,318
Deferred revenue	26,899	33,802
Total current liabilities	209,478	138,570
Long-term debt, net of current maturities	101,832	99,342
Other long-term liabilities	8,131	7,719
Total liabilities	319,441	245,631
Redeemable noncontrolling interest	2,123	2,615
Commitments and contingencies
Stockholders' equity:
Cumulative convertible preferred stock	27,000	27,000
Common stock,$0.01 par value; authorized 200,000,000 shares; outstanding 156,356,949 and 155,479,776 shares at December 31, 2012 and 2011, respectively, net of treasury stock	1,564	1,555
Additional paid-in capital	848,669	843,271
Accumulated deficit	(360,297)	(423,612)
Accumulated other comprehensive loss	(11,886)	(16,193)
Treasury stock, at cost, 849,539 shares at both December 31, 2012 and 2011	(6,565)	(6,565)
Total stockholders' equity	498,485	425,456
Noncontrolling interests	534	356
Total equity	499,019	425,812
Total liabilities and equity	$ 820,583	$ 674,058

XML

Long-term Debt, Lease Obligations and Interest Rate Caps (Tables)

12 Months Ended

Dec. 31, 2012

Long-term Debt, Lease Obligations and Interest Rate Caps [Abstract]

Obligations

	December 31,
Obligations (in thousands)	2012			2011
Revolving line of credit	$	97,250		$	—
Term loan facility	—			99,250
Facility lease obligation	2,334			3,047
Equipment capital leases	5,744			2,815
Total	105,328			105,112
Current portion of long-term debt and lease obligations	(3,496		)	(5,770		)
Non-current portion of long-term debt and lease obligations	$	101,832		$	99,342

Interest Rate Caps

As of December 31, 2012, the Company held interest rate caps as follows (amounts in thousands):

			Notional Amounts
Payment Date	Cap Rate		August 2010 Caps		July 2011 Caps		Total
March 29, 2013	2.0	%	$	66,675	$	18,250	$	84,925
June 28, 2013	2.0	%	$	—	$	63,175	$	63,175
September 30, 2013	2.0	%	$	—	$	62,475	$	62,475
December 31, 2013	2.0	%	$	—	$	61,775	$	61,775
March 31, 2014	2.0	%	$	—	$	61,075	$	61,075

Equipment capital leases

A summary of future principal obligations under long-term debt and equipment capital lease obligations are as follows (in thousands):

Years Ended December 31,	Long-Term Debt		Capital  Lease Obligations
2013	$	832	$	2,664
2014	966		2,343
2015	97,786		737
Total	$	99,584	$	5,744

XML

Fair Value of Financial Instruments (Details Textual) (USD $)	1 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of long-term debt		$ 105,328,000	$ 105,112,000
Fair value of long-term debt		105,300,000	106,500,000
Credit facility to investee	4,000,000
Unrealized losses		300,000
Write-downs of investment charged to earnings			1,300,000	7,600,000
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value		8,200,000
Convertible Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Principal amount of convertible note		6,500,000
Interest rate on convertible note		4.00%
Convertible Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value		0	0
Convertible Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value		0	0
Convertible Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value		8,195,000	5,770,000
Credit Facility Receivable [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value		2,000,000
Investment in RXT [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value			556,000
Investment in RXT [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value			0
Investment in RXT [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale investments, fair value			$ 0

XML

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income (loss)	$ 62,826	$ 24,566	$ (36,838)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization (other than multi-client library)	16,202	13,917	24,795
Amortization of multi-client data library	89,080	77,317	85,940
Stock-based compensation expense	6,598	6,344	8,147
Equity in (earnings) losses of INOVA Geophysical	297	(22,862)	(23,724)
Write-down of marine equipment	5,928	0	0
Write-down of investments	556	1,312	7,650
Write-down of unamortized debt issuance costs and debt discount	0	0	18,777
Fair value adjustment of warrant	0	0	(12,788)
Loss on disposition of land division	0	0	38,115
Deferred income taxes	3,686	(8,131)	22,207
Excess tax benefit from stock-based compensation	(193)	(3,294)	0
Change in operating assets and liabilities:
Accounts receivable	4,006	(52,955)	9,515
Unbilled receivables	(64,156)	44,962	(48,935)
Inventories	(7,039)	(6,641)	(16,138)
Accounts payable, accrued expenses and accrued royalties	61,873	(7,546)	9,550
Deferred revenue	(6,957)	15,957	7,281
Other assets and liabilities	(3,032)	1,314	(7,634)
Net cash provided by operating activities	169,081	129,984	133,368
Cash flows from investing activities:
Investment in multi-client data library	(145,627)	(143,782)	(64,426)
Purchase of property, plant and equipment	(14,877)	(11,060)	(7,372)
Investment in seismic rental equipment	(1,773)	0	0
Maturity (net purchases) of short-term investments	20,000	(20,000)	0
Investment in a convertible notes	(2,000)	(6,500)	0
Proceeds from disposition of land division, net of fees paid	0	0	99,790
Other investing activities	0	(280)	(500)
Net cash provided by (used in) investing activities	(144,277)	(181,622)	27,492
Cash flows from financing activities:
Borrowings under revolving line of credit	148,250	0	104,000
Repayments under revolving line of credit	(51,000)	0	(193,429)
Payments on notes payable and long-term debt	(101,702)	(6,145)	(145,558)
Net proceeds from issuance of debt	0	0	105,695
Net proceeds from issuance of stock	0	0	38,039
Payment of preferred dividends	(1,352)	(1,352)	(1,936)
Proceeds from employee stock purchases and exercise of stock options	807	13,105	1,071
Excess tax benefit from stock-based compensation	193	3,294	0
Contribution from noncontrolling interests	212	961	0
Other financing activities	(1,862)	(59)	(612)
Net cash provided by (used in) financing activities	(6,454)	9,804	(92,730)
Effect of change in foreign currency exchange rates on cash and cash equivalents	219	(183)	72
Net increase (decrease) in cash and cash equivalents	18,569	(42,017)	68,202
Cash and cash equivalents at beginning of period	42,402	84,419	16,217
Cash and cash equivalents at end of period	$ 60,971	$ 42,402	$ 84,419

XML

Operating Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Future rental commitments over the next five years under non-cancelable operating leases
2013	$ 8,641
2014	8,242
2015	7,955
2016	8,978
2017	8,900
Total	$ 42,716

XML

Segment and Geographic Information (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended			15 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Summary of net revenues by geographic area
Revenues	$ 173,070	$ 136,323	$ 105,214	$ 111,710	$ 88,532	$ 90,552	$ 526,317	$ 454,621	$ 444,322	$ 159,883	$ 115,654
North America [Member]
Summary of net revenues by geographic area
Revenues							164,157	155,877	177,480
Europe [Member]
Summary of net revenues by geographic area
Revenues							200,589	160,230	136,846
Asia Pacific [Member]
Summary of net revenues by geographic area
Revenues							55,028	78,777	51,496
Latin America [Member]
Summary of net revenues by geographic area
Revenues							46,212	12,199	45,954
Africa [Member]
Summary of net revenues by geographic area
Revenues							18,469	7,926	18,417
Middle East [Member]
Summary of net revenues by geographic area
Revenues							37,471	28,227	10,536
Commonwealth of Independent States [Member]
Summary of net revenues by geographic area
Revenues							$ 4,391	$ 11,385	$ 3,593

XML

Restructuring Activities (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended				12 Months Ended
	Mar. 31, 2010	Dec. 31, 2012 Stafford, Texas-based Operations [Member] Facility Closing [Member]	Dec. 31, 2010 Stafford, Texas-based Operations [Member] Facility Closing [Member]	Dec. 31, 2011 Stafford, Texas-based Operations [Member] Facility Closing [Member]	Mar. 31, 2010 Stafford, Texas-based Operations [Member] Facility Closing [Member]	Dec. 31, 2012 Sensor Geophone Operations [Member]	Dec. 31, 2011 Sensor Geophone Operations [Member]	Dec. 31, 2012 Sensor Geophone Operations [Member] Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Fair value of remaining cost to be incurred under ceased lease facility					$ 8.2
Charge of loss on disposition of land equipment businesses	5.0		5.0
Restructuring liability reserve				5.9				0.1
Cash payments for restructuring		1.2
Accrued accretion expense		0.4
Remaining restructuring liability		5.1
Percentage of headcount reduction							30.00%
Accrued liability associated with severance						$ 2.3	$ 2.4

XML

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Line Items]

Property, plant and equipment estimated useful lives

A summary of property, plant, equipment and seismic rental equipment is as follows (in thousands):

	December 31,
	2012			2011
Buildings	$	15,126		$	15,130
Machinery and equipment	87,127			71,550
Seismic rental equipment	10,895			2,986
Furniture and fixtures	3,403			3,377
Other	3,857			1,727
Total	120,408			94,770
Less accumulated depreciation	(86,636		)	(69,999		)
Property, plant, equipment and seismic rental equipment, net	$	33,772		$	24,771

Multi-Client Data Library

At December 31, 2012 and 2011, multi-client data library costs and accumulated amortization consisted of the following (in thousands):

	December 31,
	2012			2011
Gross costs of multi-client data creation	$	689,464		$	545,836
Less accumulated amortization	(459,149		)	(370,068		)
Total	$	230,315		$	175,768

Estimated Useful Lives [Member]

Property, Plant and Equipment [Line Items]

Property, plant and equipment estimated useful lives

Property, plant, equipment and seismic rental equipment are stated at cost. Depreciation expense is provided straight-line over the following estimated useful lives:

	Years
Machinery and equipment	3-7
Buildings	5-25
Seismic rental equipment	3-5
Leased equipment and other	3-10

XML

Accounts Receivable (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of accounts receivable
Accounts receivable, principally trade	$ 133,847	$ 131,810
Less allowance for doubtful accounts	(6,711)	(1,198)
Accounts receivable, net	127,136	130,612
Marine seismic contractor [Member]
Summary of accounts receivable
Less allowance for doubtful accounts	$ (5,600)

XML

Formation of INOVA Geophysical and Related Financing Transactions

12 Months Ended

Dec. 31, 2012

Formation of INOVA Geophysical and Related Financing Transactions [Abstract]

Formation of INOVA Geophysical and related Financing Transactions

Formation of INOVA Geophysical and Related Financing Transactions

On March 25, 2010, the Company completed the transactions contemplated under two definitive agreements relating to its proposed joint venture and related transactions with BGP:

• A Stock Purchase Agreement with BGP dated as of March 19, 2010 (the “Stock Purchase Agreement”), under which ION agreed to sell 23,789,536 shares of ION’s common stock to BGP; and

• A Share Purchase Agreement with BGP dated as of March 24, 2010 (the “Share Purchase Agreement”), under which ION agreed to sell to BGP a 51% equity interest in INOVA Geophysical, thereby forming the joint venture with BGP.

The transactions under the Stock Purchase Agreement and the Share Purchase Agreement had been contemplated under the terms of a binding Term Sheet (the “Term Sheet”) dated as of October 23, 2009 between ION and BGP.

Proceeds from the Sales of ION Common Stock and Equity Interests in INOVA Geophysical

As provided in the Stock Purchase Agreement, on March 25, 2010, ION issued to BGP 23,789,536 shares of ION’s common stock in a privately-negotiated transaction at an effective purchase price of $2.80 per share. The $2.80 price per share had been agreed to by the parties in the Term Sheet.

The 23,789,536 shares of ION common stock issued by ION to BGP consisted of (i) 10,204,082 shares acquired upon BGP’s conversion of the approximately $28.6 million principal balance of indebtedness outstanding under a Convertible Promissory Note dated as of October 23, 2009 made by the Company under its then-current credit facility (the “Domestic Convertible Note”) to the order of Bank of China, New York Branch (“Bank of China”), that the Bank of China assigned to BGP in March 2010, and (ii) 13,585,454 shares that BGP purchased for $2.80 cash per share under the Stock Purchase Agreement, resulting in total gross cash proceeds to ION from this sale of approximately $38.0 million.

In October 2009, ION issued to BGP a warrant (the “Warrant”) to purchase shares of ION common stock. BGP elected not to exercise the Warrant and, on March 25, 2010, BGP terminated the Warrant and surrendered it to ION. After giving effect to the issuance of the total 23,789,536 shares of common stock of ION, BGP beneficially owned as of March 25, 2010, approximately 16.6% of the outstanding shares of ION common stock. As of December 31, 2012, BGP beneficially owns approximately 15.2% of ION Common Stock.

As part of the re-financing of the Company’s debt, the Company, contemporaneously with the formation of INOVA Geophysical, entered into a new credit facility, which provided the Company with approximately $106.3 million under a new five-year term loan and approximately $100.0 million under a new revolving line of credit (the “Credit Facility”). In connection with the approximately $38.0 million in cash received from BGP for BGP’s purchase of 13,585,454 shares of ION common stock, the Company borrowed approximately $191.3 million in new borrowings under the new Credit Facility, consisting of approximately $106.3 million under a new five-year term loan and approximately $85.0 million under a new revolving line of credit. These funds, along with certain cash on hand, were applied to repay a total of approximately $226.0 million in existing indebtedness.

ION then applied a portion of the $108.5 million in cash proceeds it received for BGP’s purchase of the 51% equity interest in INOVA Geophysical (see “— Formation of ION Geophysical” below) to repay the $85.0 million of revolving loans that ION had borrowed to pay off the revolving indebtedness under ION’s prior bank senior credit facility.

In connection with the Stock Purchase Agreement transactions, the Company entered into an Investor Rights Agreement with BGP that provides that, among other items:

• for so long as BGP owns as least 10% of the Company’s outstanding shares of common stock, BGP will have the right to nominate one director to serve on the Board of Directors;

• subject to customary exceptions, BGP will have certain pre-emptive rights to subscribe for a number of shares of the Company’s common stock or other securities that the Company is then offering as may be necessary to retain BGP’s proportionate ownership of common stock that exists before that issuance; and

• BGP will have certain demand and piggyback registration rights with respect to resales of its shares.

Formation of INOVA Geophysical

On March 25, 2010, ION and BGP formed the INOVA Geophysical joint venture pursuant to the Share Purchase Agreement. The assets of each party contributed to the joint venture included land seismic recording systems, inventory, certain intellectual property rights and contract rights necessary to or principally used in the conduct or operation of the land equipment businesses as conducted or operated by BGP or ION prior to closing. Under the Share Purchase Agreement, the Company sold BGP a 51% equity interest in INOVA Geophysical for total consideration of $108.5 million cash ($99.8 million net of fees and contributed cash balances) and BGP’s transfer to the Company of a 49% equity interest in a Chinese subsidiary that held land seismic equipment assets and related liabilities. The Company and BGP then contributed their respective interests in the Chinese subsidiary to INOVA Geophysical.

Accounting Impact to the Formation of INOVA Geophysical and Related Financing Transactions

At the closing of the joint venture, the Company recorded a loss on disposition of its land division of approximately $38.1 million in 2010. The following components comprise this loss on disposition:

• The Company received cash proceeds from BGP of $99.8 million, net of fees and contributed cash balances, which were part of the disposed land divisions contributed to INOVA Geophysical.

• The Company retained a 49% interest in INOVA Geophysical, which was recorded at its fair value of $119.0 million. The fair value was determined on a discounted cash flow utilizing Level 3 inputs, with the main drivers in the calculation being INOVA Geophysical’s operational five-year forecast, which included revenues, operating expenses and capital expenditures. The Company corroborated its discounted cash flow analysis with a fair value analysis of the cash and other assets contributed by BGP for its 51% interest in INOVA Geophysical.

• The Company deconsolidated $221.7 million of net assets associated with its land division.

• The Company recognized $21.2 million of accumulated foreign currency translation losses, primarily related to its Canada land operations.

• The Company recognized $7.0 million of expense resulting from the sale of ION common stock to BGP at a discount to market under BGP’s equity purchase commitment as an inducement for BGP to enter into the transaction.

• The Company recognized $5.0 million of expense related to its permanently ceasing the use of certain leased facilities previously occupied by its land division. See further discussion at Note 22 “— Restructuring Activities”.

• The Company recognized $2.0 million of other expenses associated with the formation of INOVA Geophysical.

The following represents the impact of the other related financing transactions in the first quarter of 2010:

• The Company recorded a non-cash fair value adjustment of $12.8 million, reflecting the decrease in the fair value of the Warrant issued to BGP in October 2009, from January 1, 2010 through March 25, 2010, the date of the formation of INOVA Geophysical. At that date, the remaining $32.0 million liability representing the Warrant’s fair value was reclassified to additional paid-in-capital. The fair value of the Warrant was based on Level 2 inputs, using a Black-Scholes model. The key inputs for the Black-Scholes model included the current market price of the Company’s common stock, the yield on the common stock dividend payments 0%, risk-free interest rates, the expected term (March 2010) and the Company stock’s historical and implied volatility.

• The Company recognized in interest expense the remaining non-cash debt discount of $8.7 million, which was associated with the Company’s execution and delivery of the Convertible Notes to BGP in October 2009.

• As part of the repayment of the previous revolving line of credit and term loan, the Company wrote-off to interest expense, $10.1 million of unamortized debt issuance costs.

XML

Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Segment Information

A summary of segment information is as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Net revenues:
Solutions:
New Venture	$	147,346	$	98,335	$	81,293
Data Library	88,085		76,332		87,664
Total multi-client revenues	235,431		174,667		168,957
Data Processing	115,834		88,783		107,997
Total	$	351,265	$	263,450	$	276,954
Systems:
Towed Streamer	$	77,769	$	111,453	$	83,567
Ocean Bottom	14,823		960		1,876
Other	39,404		40,591		28,783
Total	$	131,996	$	153,004	$	114,226
Software:
Software Systems	$	39,738	$	36,031	$	34,465
Services	3,318		2,136		2,166
Total	$	43,056	$	38,167	$	36,631
Legacy Land Systems (INOVA)	$	—	$	—	$	16,511
Total	$	526,317	$	454,621	$	444,322

	Years Ended December 31,
	2012			2011			2010
Gross profit:
Solutions	$	132,950		$	84,647		$	93,804
Systems	50,790			61,109			48,557
Software	32,061			27,689			24,356
Legacy Land Systems (INOVA)	—			—			(984		)
Total	$	215,801		$	173,445		$	165,733
Gross margin:
Solutions	38		%	32		%	34		%
Systems	38		%	40		%	43		%
Software	74		%	73		%	66		%
Legacy Land Systems (INOVA)	—		%	—		%	(6		)%
Total	41		%	38		%	37		%
Income from operations:
Solutions	$	88,589		$	50,620		$	60,632
Systems	10,132			33,034			27,749
Software	28,129			24,463			21,936
Corporate and other	(52,323		)	(41,322		)	(47,847		)
Legacy Land Systems (INOVA)	—			—			(9,623		)
Income from operations	74,527			66,795			52,847
Interest expense, net	(5,265		)	(5,784		)	(30,770		)
Equity in earnings (losses) of INOVA Geophysical	297			(22,862		)	(23,724		)
Other income (expense)	17,124			(3,447		)	(8,249		)
Income (loss) before income taxes	$	86,683		$	34,702		$	(9,896	)

Schedule of Depreciation and Amortization by Segments

Depreciation and amortization (including multi-client data library):
Solutions	$	98,342	$	84,958	$	96,271
Systems	4,185		3,229		2,992
Software	776		1,116		2,461
Corporate and other	1,979		1,931		2,644
Legacy Land Systems (INOVA)	—		—		6,367
Total	$	105,282	$	91,234	$	110,735

Segment Reporting of Assets by Segments and Geographical Areas

	December 31,
	2012		2011
Total assets:
Solutions	$	438,663	$	321,384
Systems	156,484		179,154
Software	45,948		38,949
Corporate and other	179,488		134,571
Total	$	820,583	$	674,058

	December 31,
	2012		2011
Total assets by geographic area:
North America	$	533,035	$	463,287
Europe	91,101		59,730
Middle East	130,070		111,336
Latin America	51,692		28,692
Other	14,685		11,013
Total	$	820,583	$	674,058

Summary of net revenues by geographic area

A summary of net revenues by geographic area follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Europe	$	200,589	$	160,230	$	136,846
North America	164,157		155,877		177,480
Asia Pacific	55,028		78,777		51,496
Latin America	46,212		12,199		45,954
Middle East	37,471		28,227		10,536
Africa	18,469		7,926		18,417
Commonwealth of Independent States	4,391		11,385		3,593
Total	$	526,317	$	454,621	$	444,322

XML

Legal Matters (Details) (USD $)	1 Months Ended	12 Months Ended				1 Months Ended			1 Months Ended				1 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Oct. 31, 2009	Mar. 31, 2011 WesternGeco [Member] mi	Jun. 30, 2009 WesternGeco [Member] Patent	Dec. 31, 2012 WesternGeco [Member]	Aug. 16, 2012 WesternGeco [Member] Pending Litigation [Member]	Aug. 16, 2012 WesternGeco [Member] Pending Litigation [Member] Lost Profits [Member]	Aug. 16, 2012 WesternGeco [Member] Pending Litigation [Member] Lost Royalties [Member]	May 31, 2012 Fletcher [Member]	Apr. 30, 2012 Sercel [Member]	Feb. 28, 2011 Sercel [Member]	Sep. 30, 2010 Sercel [Member]	Jan. 31, 2010 Sercel [Member]
Legal Matters (Textual) [Abstract]
Number of patent apparatus claims contained							4
Minimum distance from coast to make alleged activities not actionable under patent infringement law						12
Total damages awarded									$ 105,900,000	$ 93,400,000	$ 12,500,000
Probable estimated loss contingency								10,000,000
Accrued legal contingency	10,000,000	10,000,000	0
Principal amount of promissory note												35,000,000
Compensatory damages awarded in connection with infringement of patent																25,200,000
Disallowed the award of lost profits associated with infringing products															5,400,000
Disallowed the award of lost profits associated with certain infringing pre-verdict marine sales															9,000,000
Awarded for damages, plus interest														10,700,000
Compensatory damages					21,700,000
Amount paid in full satisfaction of the judgment				25,000,000
Gain on legal settlement	$ 19,000,000	$ 20,895,000	$ 0	$ 24,500,000									$ 12,000,000

XML

Supplemental Cash Flow Information and Non-cash Activity

12 Months Ended

Dec. 31, 2012

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information and Non-cash Activity

Supplemental Cash Flow Information and Non-cash Activity

Supplemental disclosure of cash flow information is as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Cash paid during the period for:
Interest	$	4,625	$	6,440	$	11,798
Income taxes	18,146		15,473		7,263
Non-cash items from investing and financing activities:
Transfer of inventory to seismic rental equipment	6,737		2,978		3,606
Purchase of computer equipment financed through capital leases	4,647		2,597		555
Sale of rental equipment financed with a note receivable	—		3,578		—
Exchange of receivable related to a business acquisition	—		2,000		—
Reduction in multi-client data library related to finalization of accrued liabilities	—		1,888		—
Expiration of BGP warrant	—		—		32,001
Conversion of BGP Domestic Convertible Note to equity	—		—		28,571
Investment in INOVA Geophysical	—		—		119,000
Exchange of Reservoir Exploration Technology receivables into shares	—		—		9,516
Investment in multi-client data library financed through trade payables	—		—		3,429

XML

Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment
Buildings	$ 15,126	$ 15,130
Machinery and equipment	87,127	71,550
Seismic rental equipment	10,895	2,986
Furniture and fixtures	3,403	3,377
Other	3,857	1,727
Total	120,408	94,770
Less accumulated depreciation	(86,636)	(69,999)
Property, plant, equipment and seismic rental equipment net	$ 33,772	$ 24,771

XML

Consolidated Statements of Stockholders' Equity (USD $)	Total		Cumulative Convertible Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interests
Beginning balance at Dec. 31, 2009	$ 282,468,000		$ 68,786,000	$ 1,187,000	$ 666,928,000	$ (411,548,000)	$ (36,320,000)	$ (6,565,000)
Beginning balance, Shares at Dec. 31, 2009			70,000	118,688,702
Net income (loss)	(36,838,000)					(36,838,000)
Translation adjustment	(266,000)						(266,000)
Change in fair value of effective cash flow hedges (net of taxes)	60,000						60,000
Equity interest in INOVA Geophysical's other comprehensive income	(103,000)						(103,000)
Accumulated translation adjustments recognized through earnings upon disposition of land division	21,219,000						21,219,000
Unrealized net income (loss) on available-for-sale securities	0
Preferred stock dividends	(1,936,000)				(1,936,000)
Stock-based compensation expense	8,147,000				8,147,000
Modification of stock awards (disposed of land division)	1,713,000				1,713,000
Issuance of stock, shares				23,789,536
Issuance of stock	105,644,000			238,000	105,406,000
Exercise of stock options, shares	323,610			323,610
Exercise of stock options	1,071,000			3,000	1,068,000
Vesting of restricted stock units/ awards, shares				486,168
Vesting of restricted stock units/awards	0			5,000	(5,000)
Restricted stock cancelled for employee minimum income taxes, shares				(76,568)
Restricted stock cancelled for employee minimum income taxes	(612,000)			(1,000)	(611,000)
Conversion of cumulative convertible preferred stock			(43,000)	9,659,231
Conversion of cumulative convertible preferred stock, value	0		(41,786,000)	97,000	41,689,000
Ending balance at Dec. 31, 2010	380,447,000		27,000,000	1,529,000	822,399,000	(448,386,000)	(15,530,000)	(6,565,000)	0
Ending balance, Shares at Dec. 31, 2010			27,000	152,870,679
Net income (loss)	24,651,000	[1]				24,774,000			(123,000)
Translation adjustment	(60,000)						(28,000)		(32,000)
Change in fair value of effective cash flow hedges (net of taxes)	(220,000)						(220,000)
Equity interest in INOVA Geophysical's other comprehensive income	315,000						315,000
Unrealized net income (loss) on available-for-sale securities	(730,000)						(730,000)
Preferred stock dividends	(1,352,000)				(1,352,000)
Stock-based compensation expense	6,344,000				6,344,000
Exercise of stock options, shares	2,145,792			2,145,792
Exercise of stock options	13,105,000			21,000	13,084,000
Vesting of restricted stock units/ awards, shares				449,231
Vesting of restricted stock units/awards	0			5,000	(5,000)
Restricted stock cancelled for employee minimum income taxes, shares				(93,488)
Restricted stock cancelled for employee minimum income taxes	(683,000)			(1,000)	(682,000)
Issuance of stock for the ESPP, shares				107,562
Issuance of stock for the ESPP	624,000			1,000	623,000
Tax benefits from stock-based compensation	2,860,000				2,860,000
Contribution from noncontrolling interest	511,000								511,000
Net income attributable to redeemable noncontrolling interests	100,000
Ending balance at Dec. 31, 2011	425,812,000		27,000,000	1,555,000	843,271,000	(423,612,000)	(16,193,000)	(6,565,000)	356,000
Ending balance, Shares at Dec. 31, 2011			27,000	155,479,776
Net income (loss)	63,319,000	[1]				63,315,000			4,000
Translation adjustment	2,718,000						2,756,000		(38,000)
Change in fair value of effective cash flow hedges (net of taxes)	(123,000)						(123,000)
Equity interest in INOVA Geophysical's other comprehensive income	1,003,000						1,003,000
Unrealized net income (loss) on available-for-sale securities	425,000						425,000
Preferred stock dividends	(1,352,000)				(1,352,000)
Stock-based compensation expense	6,598,000				6,598,000
Exercise of stock options, shares	194,410			194,410
Exercise of stock options	807,000			2,000	805,000
Vesting of restricted stock units/ awards, shares				764,704
Vesting of restricted stock units/awards	0			8,000	(8,000)
Restricted stock cancelled for employee minimum income taxes, shares				(209,068)
Restricted stock cancelled for employee minimum income taxes	(1,268,000)			(2,000)	(1,266,000)
Issuance of stock for the ESPP, shares				127,127
Issuance of stock for the ESPP	759,000			1,000	758,000
Tax benefits from stock-based compensation	(137,000)				(137,000)
Contribution from noncontrolling interest	212,000								212,000
Net income attributable to redeemable noncontrolling interests	500,000
Ending balance at Dec. 31, 2012	$ 499,019,000		$ 27,000,000	$ 1,564,000	$ 848,669,000	$ (360,297,000)	$ (11,886,000)	$ (6,565,000)	$ 534,000
Ending balance, Shares at Dec. 31, 2012			27,000	156,356,949

[1] Net income attributable to noncontrolling interests for 2012 and 2011 excludes $(0.5) million and $(0.1) million related to the redeemable noncontrolling interests, which is reported in the mezzanine equity section of the Consolidated Balance Sheet at December 31, 2012 and 2011.

XML

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares outstanding	156,356,949	155,479,776
Treasury stock, shares	849,539	849,539

XML

Accrued Expenses

12 Months Ended

Dec. 31, 2012

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

A summary of accrued expenses is as follows (in thousands):

	December 31,
	2012		2011
Accrued multi-client data library acquisition costs	$	47,678	$	26,871
Compensation, including compensation-related taxes and commissions	28,993		19,398
Deferred income tax liability	20,556		5,695
Accrued legal contingency	10,000		—
Income tax payable	8,348		1,211
Other	8,520		8,209
Total accrued expenses	$	124,095	$	61,384

XML

Valuation and Qualifying Accounts (Schedule) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Allowance for doubtful accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 1,198	$ 845	$ 5,674
Disposed Reserves During the Period			(4,273)
Charged (Credited) to Costs and Expenses	5,811	597	1,689
Deductions	(298)	(244)	(2,245)
Balance at End of Year	6,711	1,198	845
Allowance for doubtful notes [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year			71
Disposed Reserves During the Period			(71)
Charged (Credited) to Costs and Expenses			0
Deductions			0
Balance at End of Year			0
Warranty [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	715	784	5,088
Disposed Reserves During the Period			(3,821)
Charged (Credited) to Costs and Expenses	1,258	1,165	443
Deductions	(932)	(1,234)	(926)
Balance at End of Year	1,041	715	784
Valuation allowance on deferred tax assets [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	69,475	62,700	33,126
Disposed Reserves During the Period			(15,897)
Charged (Credited) to Costs and Expenses	(6,214)	6,775	45,471
Deductions	0	0	0
Balance at End of Year	63,261	69,475	62,700
Excess and obsolete inventory [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	13,037	12,876	30,618
Disposed Reserves During the Period			(15,819)
Charged (Credited) to Costs and Expenses	1,326	567	1,587
Deductions	(124)	(406)	(3,510)
Balance at End of Year	$ 14,239	$ 13,037	$ 12,876

XML

Supplemental Cash Flow Information and Non-cash Activity (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Supplemental disclosure of cash flow information is as follows:
Interest paid	$ 4,625	$ 6,440	$ 11,798
Income taxes paid	18,146	15,473	7,263
Non-cash items from investing and financing activities is as follows:
Transfer of inventory to rental equipment	6,737	2,978	3,606
Purchase of computer equipment financed through capital leases	4,647	2,597	555
Sale of rental equipment financed with a note receivables	0	3,578	0
Exchange of receivable related to a business acquisition	0	2,000	0
Reduction in multi-client data library related to finalization of accrued liabilities	0	1,888	0
Expiration of BGP warrant	0	0	32,001
Conversion of BGP Domestic Convertible Note to equity	0	0	28,571
Investment in INOVA Geophysical	0	0	119,000
Exchange of Reservoir Exploration Technology receivables into shares	0	0	9,516
Investment in multi-client data library financed through trade payables	$ 0	$ 0	$ 3,429

XML

Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Tax Disclosure [Abstract]
Beginning balance	$ 1,375	$ 816	$ 470
Increases in unrecognized tax benefits - prior year positions	0	0	0
Increases in unrecognized tax benefits - current year positions	459	559	346
Ending balance	$ 1,834	$ 1,375	$ 816

XML

Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Feb. 12, 2013	Jun. 29, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	ION GEOPHYSICAL CORP
Entity Central Index Key	0000866609
Document Type	10-K
Document Period End Date	Dec. 31, 2012
Amendment Flag	false
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1.0
Entity Common Stock, Shares Outstanding		156,390,699

XML

Long-term Debt, Lease Obligations and Interest Rate Caps

12 Months Ended

Dec. 31, 2012

Long-term Debt, Lease Obligations and Interest Rate Caps [Abstract]

Long-term Debt, Lease Obligations and Interest Rate Caps

Long-term Debt, Lease Obligations and Interest Rate Caps

	December 31,
Obligations (in thousands)	2012			2011
Revolving line of credit	$	97,250		$	—
Term loan facility	—			99,250
Facility lease obligation	2,334			3,047
Equipment capital leases	5,744			2,815
Total	105,328			105,112
Current portion of long-term debt and lease obligations	(3,496		)	(5,770		)
Non-current portion of long-term debt and lease obligations	$	101,832		$	99,342

Revolving Line of Credit

On May 29, 2012, the Company amended the terms of its senior secured credit facility (the “Credit Facility”) with China Merchants Bank Co., Ltd., New York Branch, as administrative agent and lender (“CMB”). The First Amendment to Credit Agreement and Loan Documents (the “First Amendment”) modified certain provisions of the Company’s senior credit agreement with CMB that it had entered into on March 25, 2010.

As amended by the First Amendment, the Credit Facility provides that the Company may make revolving credit borrowings in U.S. Dollars, Euros, British Pounds Sterling or Canadian Dollars up to an amount not to exceed the U.S. Dollar equivalent of $175.0 million. The Company also agreed that no additional borrowings may be made at any time at which the outstanding indebtedness under the revolving line of credit (principal, accrued interest and fees) exceeds the U.S. Dollar equivalent of $175.0 million. In addition, all then-outstanding term loan indebtedness under the Credit Facility was converted to revolving credit indebtedness, such that as of May 29, 2012, there was $98.3 million in total revolving credit indebtedness outstanding under the Credit Facility. The First Amendment eliminated sub-facility limits under the Credit Facility.

The Company’s obligations under the Credit Facility continue to be guaranteed by certain of its material U.S. subsidiaries that remain as parties to the Credit Facility. In addition, INOVA Geophysical continues to provide a bank stand-by letter of credit as credit support for the Company’s obligations under the Credit Agreement.

As amended by the First Amendment, the interest rates per annum on borrowings under the Credit Facility are at the Company’s option:

• An alternate base rate equal to the sum of (i) the greatest of (a) the prime rate of CMB, (b) a federal funds effective rate plus 0.50%, or (c) an adjusted LIBOR-based rate plus 1.0%, and (ii) an applicable interest margin of 1.4% (reduced from 2.5%); or

• For eurodollar borrowings and borrowings in Euros, Pounds Sterling or Canadian Dollars, the sum of (i) an adjusted LIBOR-based rate, and (ii) an applicable interest margin of 2.4% (reduced from 3.5%).

As of December 31, 2012, the $97.3 million in outstanding revolving loan indebtedness under the Credit Facility accrued interest at a rate of 2.67% per annum.

The Credit Facility requires compliance with certain financial covenants, including the following:

• Maintain a minimum fixed charge coverage ratio, as defined, in an amount equal to at least 1.125 to 1;

• Not exceed a maximum leverage ratio, as defined, of 3.25 to 1; and

• Maintain a minimum tangible net worth of at least 60% of ION’s tangible net worth as of March 31, 2010, as defined.

As of December 31, 2012, the Company was in compliance with these financial covenants and the Company expects to remain in compliance with these financial covenants for at least the next 12 months.

Interest Rate Caps

In August 2010, the Company purchased interest rate caps (the “August 2010 Caps”) having an initial notional amount of $103.3 million with a three-month average LIBOR cap of 2.0%. If and when the three-month average LIBOR rate exceeds 2.0%, the LIBOR portion of interest owed by the Company would be capped at 2.0%. The initial notional amount was set to equal the projected outstanding balance under the Company’s term loan facility.

In July 2011, the Company purchased additional interest rate caps (the “July 2011 Caps”). The notional amounts of the July 2011 Caps, together with the notional amounts of the August 2010 Caps, were set so as not to exceed the outstanding balance of the Company’s term loan facility over a period that extends through March 31, 2014. The Company purchased the August 2010 Caps and July 2011 Caps for a combined total of approximately $0.7 million and initially designated the interest rate caps as cash flow hedges.

As of December 31, 2012, the Company held interest rate caps as follows (amounts in thousands):

			Notional Amounts
Payment Date	Cap Rate		August 2010 Caps		July 2011 Caps		Total
March 29, 2013	2.0	%	$	66,675	$	18,250	$	84,925
June 28, 2013	2.0	%	$	—	$	63,175	$	63,175
September 30, 2013	2.0	%	$	—	$	62,475	$	62,475
December 31, 2013	2.0	%	$	—	$	61,775	$	61,775
March 31, 2014	2.0	%	$	—	$	61,075	$	61,075

These interest rate caps were initially designated as cash flow hedges, and accordingly, the effective portion of the change in fair value of these interest rate caps was recognized in other comprehensive income in the Company’s consolidated financial statements. Unrealized gains and losses included in accumulated other comprehensive income were then reclassified into earnings as each interest rate cap settled on the contractual payment dates.

However, as a result of the First Amendment and the conversion of the outstanding balance of the term loan to a revolving line of credit indebtedness, the interest rate caps no longer qualify for hedge accounting treatment. With hedge accounting treatment no longer available for the interest rate caps, the amounts included in accumulated other comprehensive income up through the date of the First Amendment ($0.4 million), will instead be amortized ratably over the contractual terms of the interest rate caps. Changes in fair value of the interest rate caps following the date of the First Amendment date, which was less than $0.1 million, have been recognized in earnings.

Facility Lease Obligation

In 2001, the Company sold its facilities, located in Stafford, Texas. Simultaneously with the sale, the Company entered into a non-cancelable twelve-year lease with the purchaser of the property. Because the Company retained a continuing involvement in the property that precluded sale-leaseback treatment for financial accounting purposes, the sale-leaseback transaction was accounted for as a financing transaction.

In June 2005, the owner sold the facilities to two parties, which were unrelated to each other as well as unrelated to the seller. In conjunction with the sale of the facilities, the Company entered into two separate lease arrangements for each of the facilities with the new owners. One lease, which was classified as an operating lease, has a twelve-year lease term. The second lease continues to be accounted for as a financing transaction due to the Company’s continuing involvement in the property as a lessee, and has a ten-year lease term. The Company recorded the commitment under the second lease as a $5.5 million lease obligation at an implicit rate of 11.7% per annum, of which $2.3 million was outstanding at December 31, 2012. Both leases have renewal options allowing the Company to extend the leases for up to an additional twenty-year term, which the Company does not expect to renew.

Equipment Capital Leases

The Company has entered into capital leases that are due in installments for the purpose of financing the purchase of computer equipment through 2015. Interest accrues under these leases at rates of up to 6.0% per annum, and the leases are collateralized by liens on the computer equipment. The assets are amortized over the lesser of their related lease terms or their estimated productive lives and such charges are reflected within depreciation expense.

A summary of future principal obligations under long-term debt and equipment capital lease obligations are as follows (in thousands):

Years Ended December 31,	Long-Term Debt		Capital  Lease Obligations
2013	$	832	$	2,664
2014	966		2,343
2015	97,786		737
Total	$	99,584	$	5,744

XML

Stockholders' Equity and Stock-Based Compensation (Details 1) (USD $)	12 Months Ended
	Dec. 31, 2012
Summary of stock options outstanding
Outstanding	7,928,350
Weighted Average Exercise Price of Outstanding Options	$ 7.19
Weighted Average Remaining Contract Life	6 years 10 months 24 days
Vested	4,591,238
Weighted Average Exercise Price of Vested Options	$ 7.98
$2.80 - $4.58 [Member]
Summary of stock options outstanding
Option price per share, minimum	$ 2.80
Option price per share, maximum	$ 4.58
Outstanding	1,400,175
Weighted Average Exercise Price of Outstanding Options	$ 3.36
Weighted Average Remaining Contract Life	6 years 1 month 6 days
Vested	1,258,425
Weighted Average Exercise Price of Vested Options	$ 3.36
$4.90 - $7.45 [Member]
Summary of stock options outstanding
Option price per share, minimum	$ 4.90
Option price per share, maximum	$ 7.45
Outstanding	4,783,225
Weighted Average Exercise Price of Outstanding Options	$ 6.30
Weighted Average Remaining Contract Life	8 years 1 month 6 days
Vested	1,606,613
Weighted Average Exercise Price of Vested Options	$ 6.31
$7.76 - $13.29 [Member]
Summary of stock options outstanding
Option price per share, minimum	$ 7.76
Option price per share, maximum	$ 13.29
Outstanding	824,500
Weighted Average Exercise Price of Outstanding Options	$ 9.96
Weighted Average Remaining Contract Life	3 years 7 months 6 days
Vested	805,750
Weighted Average Exercise Price of Vested Options	$ 9.96
$14.03 - $16.39 [Member]
Summary of stock options outstanding
Option price per share, minimum	$ 14.03
Option price per share, maximum	$ 16.39
Outstanding	920,450
Weighted Average Exercise Price of Outstanding Options	$ 15.22
Weighted Average Remaining Contract Life	5 years
Vested	920,450
Weighted Average Exercise Price of Vested Options	$ 15.22

XML

Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred income tax assets:
Accrued expenses	$ 11,417	$ 3,701
Allowance accounts	5,057	3,900
Inventory	302	457
Total current deferred income tax asset	16,776	8,058
Valuation allowance	(10,454)	(6,148)
Net current deferred income tax asset	6,322	1,910
Deferred income tax liabilities:
Unbilled receivables	(26,863)	(7,592)
Net current deferred income tax (liability) asset	(20,541)	(5,682)
Deferred income tax assets:
Net operating loss carryforward	7,227	6,598
Capital loss carryforward	19,919	19,005
Equity method investment	33,305	33,409
Cost method investments	4,037	3,843
Basis in identified intangibles	4,852	3,606
Basis in research and development	3,196	2,045
Basis in property, plant and equipment	(2,387)	1,234
Tax credit carryforwards and other	10,387	10,386
Total non-current deferred income tax asset	80,536	80,126
Valuation allowance	(52,807)	(63,327)
Net non-current deferred income tax asset (liability)	$ 27,729	$ 16,799

XML

Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Statement [Abstract]
Service revenues	$ 354,583	$ 265,586	$ 279,120
Product revenues	171,734	189,035	165,202
Total net revenues	526,317	454,621	444,322
Cost of services	219,324	177,956	183,931
Cost of products	91,192	103,220	94,658
Gross profit	215,801	173,445	165,733
Operating expenses:
Research, development and engineering	34,080	24,569	25,227
Marketing and sales	35,240	31,269	30,405
General, administrative, and other operating expense	71,954	50,812	57,254
Total operating expenses	141,274	106,650	112,886
Income (loss) from operations	74,527	66,795	52,847
Interest expense, net	(5,265)	(5,784)	(30,770)
Equity in (earnings) losses of INOVA Geophysical	297	(22,862)	(23,724)
Other income (expense)	17,124	(3,447)	(8,249)
Income (loss) before income taxes	86,683	34,702	(9,896)
Income tax expense	23,857	10,136	26,942
Net income (loss)	62,826	24,566	(36,838)
Net income attributable to noncontrolling interests	489	208	0
Net income (loss) attributable to ION	63,315	24,774	(36,838)
Preferred stock dividends	1,352	1,352	1,936
Net income (loss) applicable to common shares	$ 61,963	$ 23,422	$ (38,774)
Net income per share:
Basic	$ 0.40	$ 0.15	$ (0.27)
Diluted	$ 0.39	$ 0.15	$ (0.27)
Weighted average number of common shares outstanding:
Basic	155,801	154,811	144,278
Diluted	162,765	156,090	144,278

XML

Accounts Receivable

12 Months Ended

Dec. 31, 2012

Receivables [Abstract]

Accounts Receivable

Accounts Receivable

A summary of accounts receivable is as follows (in thousands):

	December 31,
	2012			2011
Accounts receivable, principally trade	$	133,847		$	131,810
Less allowance for doubtful accounts	(6,711		)	(1,198		)
Accounts receivable, net	$	127,136		$	130,612

At December 31, 2012, the Company specifically reserved $5.6 million related to the outstanding receivables due from a marine seismic contractor. The Company has determined that the collectability of this receivable is remote.

XML

Net Income (Loss) per Common Share

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Net Income (Loss) per Common Share

Net Income (Loss) per Common Share

Basic net income (loss) per common share is computed by dividing net income (loss) applicable to common shares by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share is determined based on the assumption that dilutive restricted stock and restricted stock unit awards have vested and outstanding dilutive stock options have been exercised and the aggregate proceeds were used to reacquire common stock using the average price of such common stock for the period. The total number of shares issuable under anti-dilutive options at December 31, 2012, 2011, and 2010 were 4,864,553, 2,974,886 and 7,721,792, respectively.

There were 27,000 shares of Series D Cumulative Convertible Preferred Stock outstanding as of December 31, 2012, which may be converted, at the holder’s election, into up to 6,065,075 shares of common stock. See further discussion of the Series D Preferred Stock conversion provisions at Note 12 “— Cumulative Convertible Preferred Stock.” The outstanding shares of all Series D Preferred Stock was anti-dilutive for the years ended December 31, 2011 and 2010.

The following table summarizes the computation of basic and diluted net income (loss) per common share (in thousands, except per share amounts):

	Years Ended December 31,
	2012		2011		2010
Net income (loss) applicable to common shares	$	61,963	$	23,422	$	(38,774	)
Income impact of assumed Series D Preferred Stock conversion	1,352		—		—
Net income after assumed Series D Preferred Stock conversion	$	63,315	$	23,422	$	(38,774	)
Weighted average number of common shares outstanding	155,801		154,811		144,278
Effect of dilutive stock awards	899		1,279		—
Effect of Series D Preferred Stock	6,065		—		—
Weighted average number of diluted common shares outstanding	162,765		156,090		144,278
Basic net income (loss) per share	$	0.40	$	0.15	$	(0.27	)
Diluted net income (loss) per share	$	0.39	$	0.15	$	(0.27	)

XML

Income Taxes

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The sources of income (loss) before income taxes are as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Domestic	$	34,633	$	12,674	$	(55,547	)
Foreign	52,050		22,028		45,651
Total	$	86,683	$	34,702	$	(9,896	)

Components of income taxes are as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Current:
Federal	$	873		$	6,594		$	(3,489	)
State and local	192			493			665
Foreign	19,106			11,180			7,559
Deferred:
Federal	3,822			(4,893		)	21,665
Foreign	(136		)	(3,238		)	542
Total income tax expense	$	23,857		$	10,136		$	26,942

A reconciliation of the expected income tax expense on income (loss) before income taxes using the statutory federal income tax rate of 35% for 2012, 2011 and 2010 to income tax expense is as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Expected income tax expense (benefit) at 35%	$	30,339		$	12,146		$	(3,464	)
Foreign tax rate differential	(5,404		)	(7,858		)	(11,914		)
Foreign tax differences	4,897			(2,511		)	—
Formation of INOVA Geophysical	—			—			10,507
Nondeductible financings	—			—			1,082
State and local taxes	192			493			665
Nondeductible expenses	47			1,091			492
Deferred tax asset valuation allowance:
Deferred tax asset valuation allowance on formation of INOVA Geophysical	—			—			20,213
Deferred tax asset valuation allowance on equity in losses of INOVA Geophysical	(104		)	8,002			8,303
Deferred tax asset valuation allowance on write-down of investments	195			459			2,677
Deferred tax asset valuation allowance on operations	(6,305		)	(1,686		)	(1,619		)
Total income tax expense	$	23,857		$	10,136		$	26,942

The tax effects of the cumulative temporary differences resulting in the net deferred income tax asset (liability) are as follows (in thousands):

	December 31,
	2012			2011
Current deferred:
Deferred income tax assets:
Accrued expenses	$	11,417		$	3,701
Allowance accounts	5,057			3,900
Inventory	302			457
Total current deferred income tax asset	16,776			8,058
Valuation allowance	(10,454		)	(6,148		)
Net current deferred income tax asset	6,322			1,910
Deferred income tax liabilities:
Unbilled receivables	(26,863		)	(7,592		)
Net current deferred income tax liability	$	(20,541	)	$	(5,682	)
Non-current deferred:
Deferred income tax assets:
Net operating loss carryforward	$	7,227		$	6,598
Capital loss carryforward	19,919			19,005
Equity method investment	33,305			33,409
Cost method investments	4,037			3,843
Basis in identified intangibles	4,852			3,606
Basis in research and development	3,196			2,045
Basis in property, plant and equipment	(2,387		)	1,234
Tax credit carryforwards and other	10,387			10,386
Total non-current deferred income tax asset	80,536			80,126
Valuation allowance	(52,807		)	(63,327		)
Net non-current deferred income tax asset	$	27,729		$	16,799

In 2002, the Company established a valuation allowance for substantially all of its deferred tax assets. Since that time, the Company has continued to record a valuation allowance. In 2012, the Company released approximately $6.6 million of valuation allowance associated with its U.S. deferred assets. Because, among other reasons, the Company was no longer in a recent cumulative loss position and its projections indicate that these deferred tax assets will likely be realized. However, an additional valuation allowance was established on certain U.S. deferred tax assets related to capital losses. The valuation allowance was calculated in accordance with the provisions of ASC 740, “Income Taxes,” which requires that a valuation allowance be established or maintained when it is “more likely than not” that all or a portion of deferred tax assets will not be realized. The Company will continue to record a valuation allowance for capital losses or basis differences that will create capital losses, which are primarily related to our investment in INOVA Geophysical, until there is sufficient evidence to warrant reversal. In the event the Company’s expectations of future operating results change, an additional valuation allowance may be required to be established on the Company’s existing unreserved net U.S. deferred tax assets.

At December 31, 2012, the Company had a net operating loss in the U.S. of $3.6 million that will expire in 2032 and operating loss carry-forwards outside of the U.S. of approximately $23.0 million, the majority of which expires beyond 2027.

As of December 31, 2012, the Company has approximately $1.8 million of unrecognized tax benefits and does not expect to recognize any significant increases in unrecognized tax benefits during the next twelve-month period. As of December 31, 2012, all of this amount, if recognized, would affect the effective tax rate. Interest and penalties, if any, related to unrecognized tax benefits are recorded in income tax expense. For 2012, 2011 and 2010, the aggregate changes in the Company’s total gross amount of unrecognized tax benefits are summarized as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Beginning balance	$	1,375	$	816	$	470
Increases in unrecognized tax benefits – prior year positions	—		—		—
Increases in unrecognized tax benefits – current year positions	459		559		346
Ending balance	$	1,834	$	1,375	$	816

The Company’s U.S. federal tax returns for 2007 and subsequent years remain subject to examination by tax authorities. The Company is no longer subject to IRS examination for periods prior to 2007, although carryforward attributes that were generated prior to 2007 may still be adjusted upon examination by the IRS if they either have been or will be used in a future period. In the Company’s foreign tax jurisdictions, tax returns for 2009 and subsequent years generally remain open to examination.

United States income taxes have not been provided on the cumulative undistributed earnings of the Company’s foreign subsidiaries in the amount of approximately $84.4 million as it is the Company’s intention to reinvest such earnings indefinitely. The Company’s U.S. operations are expected to be fully supported by existing cash balances and U.S.-generated cash flows. These foreign earnings could become subject to additional tax if remitted, or deemed remitted, to the United States as a dividend; however, it is not practicable to estimate the additional amount of taxes payable.

XML

Cumulative Convertible Preferred Stock

12 Months Ended

Dec. 31, 2012

Equity [Abstract]

Cumulative Convertible Preferred Stock

Cumulative Convertible Preferred Stock

During 2005, the Company entered into an Agreement with Fletcher International, Ltd. (this Agreement, as amended, is referred to as the “Fletcher Agreement”) and issued to Fletcher 30,000 shares of Series D-1 Cumulative Convertible Preferred Stock (“Series D-1 Preferred Stock”) in a privately-negotiated transaction, receiving $29.8 million in net proceeds. The Fletcher Agreement also provided to Fletcher an option to purchase up to an additional 40,000 shares of additional series of preferred stock from time to time, with each series having a conversion price that would be equal to 122% of an average daily volume-weighted market price of the Company’s common stock over a trailing period of days at the time of issuance of that series. In 2007 and 2008, Fletcher exercised this option and purchased 5,000 shares of Series D-2 Cumulative Convertible Preferred Stock (“Series D-2 Preferred Stock”) for $5.0 million (in December 2007) and the remaining 35,000 shares of Series D-3 Cumulative Convertible Preferred Stock (“Series D-3 Preferred Stock”) for $35.0 million (in February 2008). The shares of Series D-1 Preferred Stock, Series D-2 Preferred Stock and Series D-3 Preferred Stock are sometimes referred to herein as the “Series D Preferred Stock.”

Dividends on the shares of Series D Preferred Stock must be paid in cash on a quarterly basis. Dividends are payable at a rate equal to the greater of (i) 5.0% per annum or (ii) the three month LIBOR rate on the last day of the immediately preceding calendar quarter plus 2.5% per annum. The Series D Preferred Stock dividend rate was 5.0% at December 31, 2012.

Under the Fletcher Agreement, if a 20-day volume-weighted average trading price per share of the Company’s common stock fell below $4.4517 (the “Minimum Price”), the Company was required to deliver a notice (the “Reset Notice”) to Fletcher. On November 28, 2008, the volume-weighted average trading price per share of the Company’s common stock on the New York Stock Exchange for the previous 20 trading days was calculated to be $4.328, and the Company delivered the Reset Notice to Fletcher in accordance with the terms of the Fletcher Agreement. In the Reset Notice, the Company elected to reset the conversion prices for the Series D Preferred Stock to the Minimum Price ($4.4517 per share), and Fletcher’s rights to redeem the Series D Preferred Stock were terminated. The adjusted conversion price resulting from this election was effective on November 28, 2008.

In addition, under the Fletcher Agreement, the aggregate number of shares of common stock issued or issuable to Fletcher upon conversion or redemption of, or as dividends paid on, the Series D Preferred Stock could not exceed a designated maximum number of shares (the “Maximum Number”), and such Maximum Number could be increased by Fletcher providing the Company with a 65-day notice of increase, but under no circumstance could the total number of shares of common stock issued or issuable to Fletcher with respect to the Series D Preferred Stock ever exceed 15,724,306 shares. The Fletcher Agreement had designated 7,669,434 shares as the original Maximum Number. In November 2008, Fletcher delivered a notice to the Company to increase the Maximum Number to 9,669,434 shares, effective February 1, 2009. On November 8, 2010, Fletcher delivered a notice to the Company to increase the Maximum Number to the full 15,724,306 shares, effective January 12, 2011.

On April 8, 2010, Fletcher converted 8,000 of its shares of the outstanding Series D-1 Preferred Stock and all of the outstanding 35,000 shares of the Series D-3 Preferred Stock into a total of 9,659,231 shares of the Company’s common stock. The conversion price for these shares was $4.4517 per share, in accordance with the terms of these series of preferred stock. Until June 2012, Fletcher owned 22,000 shares of the Series D-1 Preferred Stock and 5,000 shares of the Series D-2 Preferred Stock. As a result of Fletcher’s delivery of its notice to increase the Maximum Number to the full 15,724,306 shares in November 2010, under the terms of the Fletcher Agreement, Fletcher’s remaining 27,000 shares of Series D Preferred Stock were convertible into 6,065,075 shares of the Company’s common stock. The conversion prices and number of shares of common stock to be acquired upon conversion are also subject to customary anti-dilution adjustments.

In June 2012, Fletcher filed a voluntary petition for relief under Chapter 11 of the U.S. Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of New York. All of the shares of Series D Preferred Stock, which had been pledged by Fletcher to secure certain indebtedness, were sold by the pledgee to an affiliate of D.E. Shaw & Co., Inc. in June 2012.

XML

Stockholders' Equity and Stock-Based Compensation Stockholders' Equity and Stock-Based Compensation (Details 5) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 6,598	$ 6,344	$ 8,147
Tax benefit related thereto	(2,056)	(1,976)	(2,633)
Stock-based compensation expense, net of tax	$ 4,542	$ 4,368	$ 5,514

XML

Goodwill

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

On December 31, 2012 and 2011, the Company completed the annual reviews of the carrying value of goodwill in its Solutions, Software and Marine Systems reporting units and noted no impairments. The Company’s 2012 qualitative assessment indicated that it is more likely than not that the fair value of its Software reporting unit exceeds its carrying value. The 2012 quantitative assessment indicated that the fair values of its Solutions and Marine Systems reporting units significantly exceeded their carrying values. However, if the estimates or related projections associated with the reporting units significantly change in the future, the Company may be required to record impairment charges.

The following is a summary of the changes in the carrying amount of goodwill for the years ended December 31, 2012 and 2011 (in thousands):

	Solutions		Software			Systems		Total
Balance at January 1, 2011	$	—	$	24,349		$	26,984	$	51,333
Goodwill acquired during the year	2,701		—			—		2,701
Impact of foreign currency translation adjustments	—		(71		)	—		(71		)
Balance at December 31, 2011	2,701		24,278			26,984		53,963
Purchase price adjustment	242		—			—		242
Impact of foreign currency translation adjustments	—		1,144			—		1,144
Balance at December 31, 2012	$	2,943	$	25,422		$	26,984	$	55,349

XML

Equity Method Investment in INOVA Geophysical (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Equity Method Investment Summarized Financial Information Balance Sheets
Current assets	$ 138,401	$ 104,291
Non-current assets	101,280	108,039
Current liabilities	78,241	38,849
Non-current liabilities	9,290	25,701
Equity	$ 152,150	$ 147,780

XML

Inventories

12 Months Ended

Dec. 31, 2012

Inventory Disclosure [Abstract]

Inventories

Inventories

A summary of inventories is as follows (in thousands):

	December 31,
	2012			2011
Raw materials and purchased subassemblies	$	49,421		$	45,829
Work-in-process	8,613			8,294
Finished goods	26,880			29,059
Reserve for excess and obsolete inventories	(14,239		)	(13,037		)
Total	$	70,675		$	70,145

The Company provides for estimated obsolescence or excess inventory charges in amounts equal to the difference between the cost of inventory and market based upon assumptions about future demand for the Company’s products and market conditions. For 2012, 2011, and 2010, the Company recorded inventory obsolescence and excess inventory charges of approximately $1.3 million, $0.6 million, and $1.6 million, respectively.

XML

Property, Plant, Equipment and Seismic Rental Equipment

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Property, Plant, Equipment and Seismic Rental Equipment

Property, Plant, Equipment and Seismic Rental Equipment

A summary of property, plant, equipment and seismic rental equipment is as follows (in thousands):

	December 31,
	2012			2011
Buildings	$	15,126		$	15,130
Machinery and equipment	87,127			71,550
Seismic rental equipment	10,895			2,986
Furniture and fixtures	3,403			3,377
Other	3,857			1,727
Total	120,408			94,770
Less accumulated depreciation	(86,636		)	(69,999		)
Property, plant, equipment and seismic rental equipment, net	$	33,772		$	24,771

Total depreciation expense, including amortization of assets recorded under capital leases, for 2012, 2011 and 2010 was $12.5 million, $9.4 million and $15.7 million, respectively. In 2012, the Company wrote down $5.9 million of marine seismic equipment it had leased to a marine seismic contractor. This write-down was reflected in general, administrative and other operating expenses.

XML

Intangible Assets

12 Months Ended

Dec. 31, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

A summary of intangible assets, net, is as follows (in thousands):

	December 31, 2012
	Gross Amount		Accumulated Amortization			Net
Customer relationships	$	42,397	$	(28,909	)	$	13,488
Intellectual property rights	4,300		(2,947		)	1,353
Proprietary technology, trade names, and patents	19,008		(19,008		)	—
Total	$	65,705	$	(50,864	)	$	14,841

	December 31, 2011
	Gross Amount		Accumulated Amortization			Net
Customer relationships	$	42,194	$	(25,529	)	$	16,665
Intellectual property rights	3,350		(2,299		)	1,051
Proprietary technology, trade names, and patents	18,985		(18,985		)	—
Total	$	64,529	$	(46,813	)	$	17,716

Total amortization expense for intangible assets for 2012, 2011 and 2010 was $3.9 million, $4.5 million and $7.4 million, respectively. A summary of the estimated amortization expense for the next five years is as follows (in thousands):

Years Ended December 31,
2013	$	3,512
2014	$	2,823
2015	$	2,411
2016	$	1,962
2017	$	1,670

XML

Net Income (Loss )Per Common Share (Details Textual)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net Income (Loss) Per Common Share (Textual) [Abstract]
Number of shares issuable under anti-dilutive options	4,864,553	2,974,886	7,721,792
Number of outstanding shares of Series D Cumulative Convertible Preferred Stock	27,000
Number of shares of common stock	6,065,075

XML

Stockholders' Equity and Stock Based Compensation (Details Textual) (USD $)	1 Months Ended	12 Months Ended
	Jun. 30, 2010	Dec. 31, 2012 Person	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Stockholders Equity and Stock Based Compensation (Textual) [Abstract]
Percentage of fair market value of shares for calculation of exercise price SAR		not to be less than one hundred percent
Maximum term of SAR		10 years
Stockholders Equity and Stock Based Compensation Additional (Textual) [Abstract]
Shares outstanding options under the stock option plans		7,928,350	6,791,300	7,721,792	7,766,188
Shares available for future grant and issuance		2,938,928	4,793,640	1,648,700	410,873
Weighted average grant date fair value for stock option awards		$ 3.54	$ 4.00	$ 3.81
Minimum payroll deductions at base compensation under employee stock purchase plan	1.00%
Maximum payroll deductions at base compensation under employee stock purchase plan	10.00%
Maximum purchase limit of shares for each participant per offering period	500
Maximum purchase limit of shares for each participant annually	1,000
Maximum purchase limit of shares on the basis of fair market value on offering date, for each participant in any calendar year	$ 10,000
Purchase price of the common stock	lesser of 85% of the closing price on the first day of the applicable offering period (or most recently preceding trading day) or 85% of the closing price on the last day of the offering period
Maximum number of shares of common stock purchased for each offering period		100,000
Maximum number of shares of common stock purchased for each offering period annually		200,000
Number of individuals holding stock appreciation rights awards		1
Restricted stock and restricted stock unit [Member]
Stockholders Equity and Stock Based Compensation (Textual) [Abstract]
Intrinsic value of restricted stock and restricted stock unit awards		6,700,000
Weighted average grant date fair value for restricted stock and restricted stock unit awards		$ 6.05	$ 6.34	$ 6.30
Total fair value of shares vested		4,600,000	3,300,000	3,300,000
Employee Stock [Member]
Stockholders Equity and Stock Based Compensation (Textual) [Abstract]
Company recorded compensation expense approximately		300,000	300,000	0
Number of shares of common stock authorized and available for issuance under employee stock purchase program		1,265,311
Stock Appreciation Rights (SARs) [Member]
Stockholders Equity and Stock Based Compensation (Textual) [Abstract]
Company recorded compensation expense approximately		$ 100,000	$ 300,000	$ 100,000
Number of vested and outstanding stock appreciation rights		140,000
Weighted average exercise price of stock appreciation rights awards		$ 3.00

XML

Inventories (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of Inventories
Raw materials and purchased subassemblies	$ 49,421	$ 45,829
Work-in-process	8,613	8,294
Finished goods	26,880	29,059
Reserve for excess and obsolete inventories	(14,239)	(13,037)
Total	$ 70,675	$ 70,145

XML

Subsequent Events (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Mar. 25, 2010	Mar. 24, 2010	Feb. 19, 2013 Subsequent Event [Member] GeoRXT [Member]
Subsequent Event [Line Items]
Percentage of equity method investment	49.00%	49.00%	49.00%	30.00%
Purchase price of joint venture				$ 1.5
Provided loan				$ 8.0

XML

Net Income (Loss) per Common Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended						12 Months Ended			15 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Computation of basic and diluted net income (loss) per common share
Net income (loss) applicable to common shares	$ 26,828	$ 14,859	$ 12,039	$ 8,237	$ 2,558	$ 137	$ 61,963	$ 23,422	$ (38,774)	$ 12,013	$ 8,714
Weighted average number of common shares outstanding							155,801	154,811	144,278
Weighted average number of diluted common shares outstanding							162,765	156,090	144,278
Basic net income (loss) per share	$ 0.17	$ 0.10	$ 0.08	$ 0.05	$ 0.02	$ 0.00	$ 0.40	$ 0.15	$ (0.27)	$ 0.08	$ 0.06
Diluted net income (loss) per share	$ 0.17	$ 0.09	$ 0.08	$ 0.05	$ 0.02	$ 0.00	$ 0.39	$ 0.15	$ (0.27)	$ 0.08	$ 0.06
Stock Award One [Member]
Computation of basic and diluted net income (loss) per common share
Effect of dilutive stock awards							899	1,279	0
Stock Award Two [Member]
Computation of basic and diluted net income (loss) per common share
Effect of dilutive stock awards							6,065	0	0
Series D Preferred Stock [Member]
Computation of basic and diluted net income (loss) per common share
Income impact of assumed Series D Preferred Stock conversion							1,352	0	0
Net income after assumed Series D Preferred Stock conversion							$ 63,315	$ 23,422	$ (38,774)

XML

Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating Loss Carryforwards [Line Items]
Statutory federal income tax rate	35.00%	35.00%	35.00%
Reduction of deferred tax asset valuation allowance	$ 6,600,000
Unrecognized tax benefits	1,834,000	1,375,000	816,000	470,000
United States income taxes not provided	84,400,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	3,600,000
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carry-forwards	$ 23,000,000

XML

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

General Description and Principles of Consolidation

General Description and Principles of Consolidation

ION Geophysical Corporation and its subsidiaries offer a full suite of services and products for seismic data acquisition and processing. The consolidated financial statements include the accounts of ION Geophysical Corporation and its majority-owned subsidiaries (collectively referred to as the “Company” or “ION”). Intercompany balances and transactions have been eliminated. Certain reclassifications were made to previously reported amounts in the consolidated financial statements and notes thereto to make them consistent with the current presentation format.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates are made at discrete points in time based on relevant market information. These estimates may be subjective in nature and involve uncertainties and matters of judgment and, therefore, cannot be determined with precision. Areas involving significant estimates include, but are not limited to, accounts and unbilled receivables, inventory valuation, sales forecasts related to multi-client data libraries, goodwill and intangible asset valuation and deferred taxes. Actual results could materially differ from those estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. At December 31, 2012 and 2011, there was $1.5 million and $3.3 million, respectively, of short-term restricted cash used to secure standby and commercial letters of credit, which is included within Prepaid Expenses and Other Current Assets.

Short-term Investments

Short-term Investments

Short-term investments are comprised solely of bank certificates of deposit denominated in U.S. dollars with original maturities in excess of three months and represent the investment of excess cash that is available for current operations. The Company recorded these investments on its balance sheet at cost. These investments matured in February 2012.

Accounts and Unbilled Receivables

Accounts and Unbilled Receivables

Accounts and unbilled receivables are recorded at cost, less the related allowance for doubtful accounts. The Company considers current information and events regarding the customers’ ability to repay their obligations, such as the length of time the receivable balance is outstanding, the customers’ credit worthiness and historical experience. Unbilled receivables relate to revenues recognized on multi-client surveys and imaging services on a proportionate basis and on licensing of multi-client data libraries for which invoices have not yet been presented to the customer.

Inventories

Inventories

Inventories are stated at the lower of cost (primarily first-in, first-out method) or market. The Company provides reserves for estimated obsolescence or excess inventory equal to the difference between cost of inventory and its estimated market value based upon assumptions about future demand for the Company’s products, market conditions and the risk of obsolescence driven by new product introductions.

Property, Plant, Equipment and Seismic Rental Equipment

Property, Plant, Equipment and Seismic Rental Equipment

Property, plant, equipment and seismic rental equipment are stated at cost. Depreciation expense is provided straight-line over the following estimated useful lives:

	Years
Machinery and equipment	3-7
Buildings	5-25
Seismic rental equipment	3-5
Leased equipment and other	3-10

Expenditures for renewals and betterments are capitalized; repairs and maintenance are charged to expense as incurred. The cost and accumulated depreciation of assets sold or otherwise disposed of are removed from the accounts and any gain or loss is reflected in operating expenses.

The Company evaluates the recoverability of long-lived assets, including property, plant, equipment and seismic rental equipment, when indicators of impairment exist, relying on a number of factors including operating results, business plans, economic projections, and anticipated future cash flows. Impairment in the carrying value of an asset held for use is recognized whenever anticipated future cash flows (undiscounted) from an asset are estimated to be less than its carrying value. The amount of the impairment recognized is the difference between the carrying value of the asset and its fair value.

Multi-Client Data Library

Multi-Client Data Library

The multi-client data library consists of seismic surveys that are offered for licensing to customers on a non-exclusive basis. The capitalized costs include costs paid to third parties for the acquisition of data and related activities associated with the data creation activity and direct internal processing costs, such as salaries, benefits, computer-related expenses, and other costs incurred for seismic data project design and management. For 2012, 2011, and 2010, the Company capitalized, as part of its multi-client data library, $3.8 million, $2.4 million, and $2.8 million, respectively, of direct internal processing costs. At December 31, 2012 and 2011, multi-client data library costs and accumulated amortization consisted of the following (in thousands):

	December 31,
	2012			2011
Gross costs of multi-client data creation	$	689,464		$	545,836
Less accumulated amortization	(459,149		)	(370,068		)
Total	$	230,315		$	175,768

The Company’s method of amortizing the costs of an in-process multi-client data library (the period during which the seismic data is being acquired and/or processed, referred to as the “new venture” phase) consists of determining the percentage of actual revenue recognized to the total estimated revenues (which includes both revenues estimated to be realized during the new venture phase and estimated revenues from the licensing of the resulting “on-the-shelf” data survey), and multiplying that percentage by the total cost of the project (the sales forecast method). The Company considers a multi-client data survey to be complete when all work on the creation of the seismic data is finished and that data survey is available for licensing. Once a multi-client data survey is complete, the data survey is considered “on-the-shelf” and the Company’s method of amortization is then the greater of (i) the sales forecast method or (ii) the straight-line basis over a four-year period. The greater amount of amortization resulting from the sales forecast method or the straight-line amortization policy is applied on a cumulative basis at the individual survey level. Under this policy, the Company first records amortization using the sales forecast method. The cumulative amortization recorded for each survey is then compared with the cumulative straight-line amortization. The four-year period utilized in this cumulative comparison commences when the data survey is determined to be complete. If the cumulative straight-line amortization is higher for any specific survey, additional amortization expense is recorded, resulting in accumulated amortization being equal to the cumulative straight-line amortization for such survey. The Company has determined the amortization period of four years based upon its historical experience that indicates that the majority of its revenues from multi-client surveys are derived during the acquisition and processing phases and during four years subsequent to survey completion.

The Company estimates the ultimate revenue expected to be derived from a particular seismic data survey over its estimated useful economic life to determine the costs to amortize, if greater than straight-line amortization. That estimate is made by the Company at the project’s initiation. For a completed multi-client survey, the Company reviews the estimate quarterly. If during any such review, the Company determines that the ultimate revenue for a survey is expected to be materially more or less than the original estimate of ultimate revenue for such survey, the Company decreases or increases (as the case may be) the amortization rate attributable to the future revenue from such survey. In addition, in connection with such reviews, the Company evaluates the recoverability of the multi-client data library, and, if required under Accounting Standards Codification (“ASC”) 360-10 “Impairment and Disposal of Long-Lived Assets” (“ASC 360-10”), records an impairment charge with respect to such data. There were no significant impairment charges associated with the Company’s multi-client data library during 2012, 2011 and 2010.

Cost Method Investments

Cost Method Investments

Certain of the Company’s investments are accounted for under the cost method. The Company’s cost method investments that have quoted prices from active markets are classified as “available-for-sale” and revalued at each reporting date, with all unrealized gains or losses, net of taxes, included in accumulated other comprehensive income (outside of earnings) until realized or until such time that a decline in fair value below cost is deemed to be other-than-temporary. The Company’s cost method investments for which quoted market prices are not available are recorded at cost and reviewed periodically if there are events or changes in circumstances that may have a significant adverse effect on the fair value of the investments.

Equity Method Investments

Equity Method Investments

The Company uses the equity method of accounting for investments in entities in which the Company has an ownership interest between 20% and 50% and exercises significant influence. Under this method, an investment is carried at the acquisition cost, plus the Company’s equity in undistributed earnings or losses since acquisition, less distributions received. As provided by ASC 815 “Investments,” the Company accounts for its share of earnings in INOVA Geophysical on a one fiscal quarter lag basis. See further discussion regarding the Company’s equity method investment in INOVA Geophysical at Note 3 “— Equity Method Investment in INOVA Geophysical.”

Noncontrolling Interests

Noncontrolling Interests

The Company has both redeemable and non-redeemable noncontrolling interests. Non-redeemable noncontrolling interests in majority-owned affiliates is reported as a separate component of equity in “Noncontrolling interests” in the Consolidated Balance Sheets. Redeemable Noncontrolling Interests include noncontrolling ownership interests which the holders have the rights, at certain times, to require the Company to acquire their ownership interest in those entities. These interests are not considered to be permanent equity and are reported in the mezzanine section of the Consolidated Balance Sheets at the greater of their carrying value or redemption value at the balance sheet date. “Net income (loss)” in the Consolidated Statements of Operations is attributable to both controlling and noncontrolling interests.

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

Goodwill is allocated to reporting units, which are either the operating segment or one reporting level below the operating segment. For purposes of performing the impairment test for goodwill as required by ASC 350 “Intangibles — Goodwill and Other,” (“ASC 350”) the Company established the following reporting units: Solutions, Software and Marine Systems.

In accordance with ASC 350, the Company is required to evaluate the carrying value of its goodwill at least annually for impairment, or more frequently if facts and circumstances indicate that it is more likely than not impairment has occurred. The Company formally evaluates the carrying value of its goodwill for impairment as of December 31 for each of its reporting units. The Company first performs a qualitative assessment by evaluating relevant events or circumstances to determine whether it is more likely than not that the fair value of a reporting unit exceeds its carrying amount. If the Company is unable to conclude qualitatively that it is more likely than not that a reporting unit’s fair value exceeds its carrying value, then it will use a two-step quantitative assessment of the fair value of a reporting unit. To determine the fair value of these reporting units, the Company uses a discounted future returns valuation model, which includes a variety of level 3 inputs. The key inputs for the model include the operational five-year forecast for the Company and the then-current market discount factor. Additionally, the Company compared the sum of the estimated fair values of the individual reporting units less consolidated debt to the Company’s overall market capitalization as reflected by the Company’s stock price. If the carrying value of a reporting unit that includes goodwill is determined to be more than the fair value of the reporting unit, there exists the possibility of impairment of goodwill. An impairment loss of goodwill is measured in two steps by first allocating the fair value of the reporting unit to net assets and liabilities including recorded and unrecorded intangible assets to determine the implied carrying value of goodwill. The next step is to measure the difference between the carrying value of goodwill and the implied carrying value of goodwill, and, if the implied carrying value of goodwill is less than the carrying value of goodwill, an impairment loss is recorded equal to the difference. See further discussion below at Note 8 “— Goodwill.”

The intangible assets, other than goodwill, relate to customer relationships and intellectual property rights. The Company amortizes it’s intellectual property rights over the estimated periods of benefit (ranging from 4 to 5 years). The Company amortizes its customer relationship intangible assets on an accelerated basis over a 10 to 15-year period, using the undiscounted cash flows of the initial valuation models. The Company uses an accelerated basis as these intangible assets were initially valued using an income approach, with an attrition rate that resulted in a pattern of declining cash flows over a 10 to 15-year period.

Following the guidance of ASC 360, the Company reviews the carrying values of these intangible assets for impairment if events or changes in the facts and circumstances indicate that their carrying value may not be recoverable. Any impairment determined is recorded in the current period and is measured by comparing the fair value of the related asset to its carrying value. See further discussion below at Note 9 “— Intangible Assets.”

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable, accrued multi-client data library royalties, investment in two convertible notes from a privately owned U.S.-based technology company, interest rate caps, long-term debt and an investment in shares of Reservoir Exploration Technology, ASA (“RXT”), a Norwegian seismic contractor. The carrying amounts of cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable and accrued multi-client data library royalties approximate fair value due to the highly liquid nature of these instruments. The fair value of the long-term debt is calculated using a market approach based upon Level 3 inputs, including an estimated interest rate reflecting current market conditions. The Company performs a fair value analysis with respect to its investment in the convertible notes using a market approach based upon Level 3 inputs, including the terms and likelihood of an investment event and the time to conversion or repayment. The Company performs a fair value analysis of its investment in RXT based upon Level 1 inputs, utilizing quoted prices from active markets.

Revenue Recognition

Revenue Recognition

The Company derives revenue from the sale of (i) multi-client and proprietary surveys, licenses of “on-the-shelf” data libraries and imaging services within its Solutions segment; (ii) acquisition systems and other seismic equipment within its Systems segment; and (iii) navigation, survey and quality control software systems within its Software segment. All revenues of the Solutions segment and the services component of revenues for the Software segment are classified as services revenues. All other revenues are classified as product revenues.

Multi-Client and Proprietary Surveys, Data Libraries and Imaging Services — As multi-client surveys are being designed, acquired and/or processed (referred to as the “new venture” phase), the Company enters into non-exclusive licensing arrangements with its customers. License revenues from these new venture survey projects are recognized during the new venture phase as the seismic data is acquired and/or processed on a proportionate basis as work is performed. Under this method, the Company recognizes revenues based upon quantifiable measures of progress, such as kilometers acquired or days processed. Upon completion of a multi-client seismic survey, the seismic survey is considered “on-the-shelf,” and licenses to the survey data are granted to customers on a non-exclusive basis. Revenues on licenses of completed multi-client data surveys are recognized when (a) a signed final master geophysical data license agreement and accompanying supplemental license agreement are returned by the customer; (b) the purchase price for the license is fixed or determinable; (c) delivery or performance has occurred; (d) and no significant uncertainty exists as to the customer’s obligation, willingness or ability to pay. In limited situations, the Company has provided the customer with a right to exchange seismic data for another specific seismic data set. In these limited situations, the Company recognizes revenue at the earlier of the customer exercising its exchange right or the expiration of the customer’s exchange right.

The Company also performs seismic surveys under contracts to specific customers, whereby the seismic data is owned by those customers. Revenue is recognized as the seismic data is acquired and/or processed on a proportionate basis as work is performed. The Company uses quantifiable measures of progress consistent with its multi-client surveys.

Revenues from all imaging and other services are recognized when persuasive evidence of an arrangement exists, the price is fixed or determinable, and collectibility is reasonably assured. Revenues from contract services performed on a day-rate basis are recognized as the service is performed.

Acquisition Systems and Other Seismic Equipment — For the sales of acquisition systems and other seismic equipment, the Company follows the requirements of ASC 605-10 “Revenue Recognition” and recognizes revenue when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the acquisition system or other seismic equipment is delivered to the customer and risk of ownership has passed to the customer, or, in the case in which a substantive customer-specified acceptance clause exists in the contract, the later of delivery or when the customer-specified acceptance is obtained.

Software — For the sales of navigation, survey and quality control software systems, the Company follows the requirements of ASC 985-605 “Software Revenue Recognition” (“ASC 985-605”). The Company recognizes revenue from sales of these software systems when (a) evidence of an arrangement exists; (b) the price to the customer is fixed and determinable; (c) collectibility is reasonably assured; and (d) the software is delivered to the customer and risk of ownership has passed to the customer, or, in the limited case in which a substantive customer-specified acceptance clause exists, the later of delivery or when the customer-specified acceptance is obtained. These arrangements generally include the Company providing related services, such as training courses, engineering services and annual software maintenance. The Company allocates revenue to each element of the arrangement based upon vendor-specific objective evidence (“VSOE”) of fair value of the element or, if VSOE is not available for the delivered element, the Company applies the residual method.

In addition to perpetual software licenses, the Company offers time-based software licenses. For time-based licenses, the Company recognizes revenue ratably over the contract term, which is generally two to five years.

Multiple-element Arrangements — When separate elements (such as an acquisition system, other seismic equipment and/or imaging services) are contained in a single sales arrangement, or in related arrangements with the same customer, the Company follows the requirements of ASC 605-25 “Accounting for Multiple-Element Revenue Arrangement” (“ASC 605-25”). The Company adopted this guidance as of January 1, 2010. Accordingly, the Company applied this guidance to transactions initiated or materially modified on or after January 1, 2010. The guidance does not apply to software sales accounted for under ASC 985-605. The Company also adopted, in the same period, guidance within ASC 985-605 that excludes from its scope revenue arrangements that include both tangible products and software elements, such that the tangible products contain both software and non-software components that function together to deliver the tangible product’s essential functionality.

This guidance requires that arrangement consideration be allocated at the inception of an arrangement to all deliverables using the relative selling price method. The Company allocates arrangement consideration to each deliverable qualifying as a separate unit of accounting in an arrangement based on its relative selling price. The Company determines its selling price using VSOE, if it exists, or otherwise third-party evidence (“TPE”). If neither VSOE nor TPE of selling price exists for a unit of accounting, the Company uses estimated selling price (“ESP”). The Company generally expects that it will not be able to establish TPE due to the nature of the markets in which the Company competes, and, as such, the Company typically will determine its selling price using VSOE or, if not available, ESP. VSOE is generally limited to the price charged when the same or similar product is sold on a standalone basis. If a product is seldom sold on a standalone basis, it is unlikely that the Company can determine VSOE for the product.

The objective of ESP is to determine the price at which the Company would transact if the product were sold by the Company on a standalone basis. The Company’s determination of ESP involves a weighting of several factors based on the specific facts and circumstances of the arrangement. Specifically, the Company considers the anticipated margin on the particular deliverable, the selling price and profit margin for similar products and the Company’s ongoing pricing strategy and policies.

The Company believes this guidance principally impacts its Systems segment. A typical arrangement within the Systems segment involves the sale of various products of the Company’s acquisition systems and other seismic equipment. Products under these arrangements are often delivered to the customer within the same period, but in certain situations, depending upon product availability and the customer’s delivery requirements, the products could be delivered to the customer at different times. In these situations, the Company considers its products to be separate units of accounting provided the delivered product has value to the customer on a standalone basis. The Company considers a deliverable to have standalone value if the product is sold separately by the Company or another vendor or could be resold by the customer. Further, the Company’s revenue arrangements generally do not include a general right of return relative to the delivered products.

Product Warranty — The Company generally warrants that its manufactured equipment will be free from defects in workmanship, materials and parts. Warranty periods generally range from 30 days to three years from the date of original purchase, depending on the product. The Company provides for estimated warranty as a charge to costs of sales at the time of sale. However, new information may become available, or circumstances (such as applicable laws and regulations) may change, thereby resulting in an increase or decrease in the amount required to be accrued for such matters (and therefore a decrease or increase in reported net income in the period of such change). In limited cases, the Company has provided indemnification of customers for potential intellectual property infringement claims relating to products sold.

Research, Development and Engineering

Research, Development and Engineering

Research, development and engineering costs primarily relate to activities that are designed to improve the quality of the subsurface image and overall acquisition economics of the Company’s customers. The costs associated with these activities are expensed as incurred. These costs include prototype material and field testing expenses, along with the related salaries and stock-based compensation, facility costs, consulting fees, tools and equipment usage, and other miscellaneous expenses associated with these activities.

Stock-Based Compensation

Stock-Based Compensation

The Company accounts for stock-based compensation under the provisions of ASC 718, “Compensation – Stock Compenstion” (“ASC 718”). The Company estimates the value of stock option awards on the date of grant using the Black-Scholes option pricing model. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as assumptions regarding a number of subjective variables. These variables include, but are not limited to, expected stock price volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rate, and expected dividends. The Company recognizes stock-based compensation on the straight-line basis over the service period of each award (generally the award’s vesting period).

Income Taxes

Income Taxes

Income taxes are accounted for under the liability method. Deferred income tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, including operating loss and tax credit carry-forwards. Deferred income tax assets and liabilities are measured using enacted tax rates expected to apply in the years in which those temporary differences are expected to be recovered or settled. The Company records a valuation allowance when it is more likely than not that all or a portion of deferred tax assets will not be realized. (see Note 16 “— Income Taxes”). The effect on deferred income tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.

Comprehensive Net Income (Loss)

Comprehensive Net Income (Loss)

Comprehensive net income (loss) as shown in the Consolidated Statements of Comprehensive Income (Loss) and the balance in Accumulated Other Comprehensive Income (Loss) as shown in the Consolidated Balance Sheets as of December 31, 2012 and 2011, consist of foreign currency translation adjustments, equity interest in INOVA Geophysical’s accumulated other comprehensive income and unrealized gains or losses on available-for-sale securities.

Foreign Currency Gains and Losses

Foreign Currency Gains and Losses

Assets and liabilities of the Company’s subsidiaries operating outside the United States that account in a functional currency other than the U.S. dollar have been translated to U.S. dollars using the exchange rate in effect at the balance sheet date. Results of foreign operations have been translated using the average exchange rate during the periods of operation. Resulting translation adjustments have been recorded as a component of Accumulated Other Comprehensive Income (Loss). Foreign currency transaction gains and losses are included in the Consolidated Statements of Operations in Other Income (Expense) as they occur. Total foreign currency transaction gains (losses) were $(1.9) million, $(1.7) million and $1.0 million for 2012, 2011, and 2010, respectively.

Concentration of Foreign Sales Risk

Concentration of Foreign Sales Risk

The majority of the Company’s foreign sales are denominated in U.S. dollars. For 2012, 2011 and 2010, international sales comprised 69%, 66% and 60%, respectively, of total net revenues. Since 2008, global economic problems and uncertainties have generally increased in scope and nature. To the extent that world events or economic conditions negatively affect the Company’s future sales to customers in many regions of the world, as well as the collectability of the Company’s existing receivables, the Company’s future results of operations, liquidity, and financial condition would be adversely affected.

XML

Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities Measured on Recurring Basis

The following table provides additional information related to assets and liabilities measured at fair value on a recurring basis at December 31, 2012 and 2011. The reference to level within the table relates to the level of inputs used to determine fair value, which the key inputs are then described below. The table (in thousands) is as follows:

	Level 1		Level 2		Level 3
As of December 31, 2012:
Investment in convertible notes	$	—	$	—	$	8,195
As of December 31, 2011:
Investment in convertible note	—		—		5,770
Investment in RXT shares	556		—		—

XML

Other Income (Expense)

12 Months Ended

Dec. 31, 2012

Other Income and Expenses [Abstract]

Other Income (Expense)

Other Income (Expense)

A summary of other income (expense) is as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Gain on legal settlements, net (Note 21)	$	20,895		$	—		$	24,500
Loss on disposition of land division (Note 15)	—			—			(38,115		)
Fair value adjustment of warrant (Note 15)	—			—			12,788
Write-down of investments (Note 19)	(556		)	(1,312		)	(7,650		)
Other income (expense)	(3,215		)	(2,135		)	228
Total other income (expense)	$	17,124		$	(3,447	)	$	(8,249	)

XML

Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2012

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable, accrued multi-client data library royalties, investment in two convertible notes from a privately-owned U.S.-based technology company, interest rate caps, long-term debt and an investment in shares of RXT.

The carrying amounts of cash and cash equivalents, short-term investments, accounts and unbilled receivables, accounts payable and accrued multi-client data library royalties approximate fair value due to the highly liquid nature of these instruments.

The carrying amount of the Company’s long-term debt as of December 31, 2012 and December 31, 2011 was $105.3 million and $105.1 million, respectively, compared to fair value of $105.3 million and $106.5 million as of December 31, 2012 and December 31, 2011, respectively. The fair value of the long-term debt was calculated using a market approach based upon Level 3 inputs, including an estimated interest rate reflecting current market conditions.

The following table provides additional information related to assets and liabilities measured at fair value on a recurring basis at December 31, 2012 and 2011. The reference to level within the table relates to the level of inputs used to determine fair value, which the key inputs are then described below. The table (in thousands) is as follows:

	Level 1		Level 2		Level 3
As of December 31, 2012:
Investment in convertible notes	$	—	$	—	$	8,195
As of December 31, 2011:
Investment in convertible note	—		—		5,770
Investment in RXT shares	556		—		—

Investment in Convertible Notes. In May 2011, the Company purchased a convertible note from a privately-owned U.S.-based technology company. The original principal amount of the note is $6.5 million, and it bears interest at a rate of 4% per annum. In March 2012, the Company and the investee entered into an agreement for the Company to make available to the investee a credit facility in an amount of up to $4.0 million, for a term of one year. The credit facility allows for conversion of the outstanding balance of the promissory note under the credit facility into common shares of the investee. As of December 31, 2012, the investee had drawn $2.0 million under the available credit arrangement.

The Company performed a fair value analysis with respect to its investment in the convertible notes using a market approach based upon Level 3 inputs, including the terms and likelihood of an investment event and the time to conversion or repayment. As of December 31, 2012, the fair value of these investments was approximately $8.2 million, with $0.3 million of unrealized losses recorded in accumulated other comprehensive income.

Investment in RXT Shares. The Company performed a fair value analysis of its investment in RXT using a market approach based upon Level 1 inputs, utilizing quoted prices from active markets. As of December 31, 2011 the fair value of the shares was $0.6 million. During the fourth quarter of 2012, the shares again declined in value. The Company determined this decline to be other-than-temporary and therefore, wrote the shares fully off through earnings.

During 2011 and 2010, the Company determined that the declines in the fair value of this investment were other-than-temporary, which resulted in write-downs of this investment by recording charges to earnings of $1.3 million and $7.6 million, respectively.

XML

Operating Leases (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Leases (Textual) [Abstract]
Operating leases, rent expense	$ 14.4	$ 16.7	$ 15.5

XML

Supplemental Cash Flow Information and Non-cash Activity (Tables)

12 Months Ended

Dec. 31, 2012

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information and Non-cash Activity

Supplemental disclosure of cash flow information is as follows (in thousands):

	Years Ended December 31,
	2012		2011		2010
Cash paid during the period for:
Interest	$	4,625	$	6,440	$	11,798
Income taxes	18,146		15,473		7,263
Non-cash items from investing and financing activities:
Transfer of inventory to seismic rental equipment	6,737		2,978		3,606
Purchase of computer equipment financed through capital leases	4,647		2,597		555
Sale of rental equipment financed with a note receivable	—		3,578		—
Exchange of receivable related to a business acquisition	—		2,000		—
Reduction in multi-client data library related to finalization of accrued liabilities	—		1,888		—
Expiration of BGP warrant	—		—		32,001
Conversion of BGP Domestic Convertible Note to equity	—		—		28,571
Investment in INOVA Geophysical	—		—		119,000
Exchange of Reservoir Exploration Technology receivables into shares	—		—		9,516
Investment in multi-client data library financed through trade payables	—		—		3,429

XML

Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2012

Property, Plant and Equipment [Abstract]

Property, Plant, Equipment and Seismic Rental Equipment

A summary of property, plant, equipment and seismic rental equipment is as follows (in thousands):

	December 31,
	2012			2011
Buildings	$	15,126		$	15,130
Machinery and equipment	87,127			71,550
Seismic rental equipment	10,895			2,986
Furniture and fixtures	3,403			3,377
Other	3,857			1,727
Total	120,408			94,770
Less accumulated depreciation	(86,636		)	(69,999		)
Property, plant, equipment and seismic rental equipment, net	$	33,772		$	24,771

XML

Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Other Comprehensive Income [Abstract]
Net income (loss)	$ 62,826	$ 24,566	$ (36,838)
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	(2,756)	28	266
Equity interest in INOVA Geophysical’s other comprehensive income (loss)	1,003	315	(103)
Unrealized income (loss) on available-for-sale securities	425	(730)	0
Other changes in other comprehensive (loss)	123	(220)	(60)
Other changes in other comprehensive (loss)	4,307	(663)	(429)
Other comprehensive income (loss), net of taxes	67,133	23,903	(37,267)
Comprehensive income attributable to noncontrolling interest	489	208	0
Comprehensive net income (loss) attributable to ION	$ 67,622	$ 24,111	$ (37,267)

XML

Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended			15 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Sep. 30, 2012
Sources of income (loss) before income taxes
Domestic							$ 34,633	$ 12,674	$ (55,547)
Foreign							52,050	22,028	45,651
Income (loss) before income taxes							86,683	34,702	(9,896)
Current:
Federal							873	6,594	(3,489)
State and local							192	493	665
Foreign							19,106	11,180	7,559
Deferred:
Federal							3,822	(4,893)	21,665
Foreign							(136)	(3,238)	542
Income tax expense	$ 10,191	$ 6,037	$ 4,184	$ 3,445	$ 1,085	$ 147	$ 23,857	$ 10,136	$ 26,942	$ 5,420	$ 3,484

XML

Equity Method Investment in INOVA Geophysical

12 Months Ended

Dec. 31, 2012

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investment in INOVA Geophysical

Equity Method Investment in INOVA Geophysical

In March 2010, the Company completed the disposition of most of its land seismic equipment businesses in connection with its formation of a land equipment joint venture with BGP. BGP is a subsidiary of China National Petroleum Corporation (“CNPC”) and is a leading global geophysical services contracting company. The resulting joint venture company, organized under the laws of the People’s Republic of China, was named INOVA Geophysical Equipment Limited (“INOVA Geophysical”). BGP owns a 51% interest in INOVA Geophysical, and the Company owns a 49% interest. INOVA Geophysical is managed through a Board of Directors consisting of four members appointed by BGP and three members appointed by the Company. The Company accounts for its 49% interest in INOVA Geophysical as an equity method investment. The Company accounts for its share of earnings in INOVA Geophysical on a one fiscal quarter lag basis. Thus, the Company’s share of INOVA Geophysical’s results for the period from October 1, 2011 to September 30, 2012 (“Fiscal 2012”), are included in the Company’s financial results for 2012, the Company’s share of INOVA Geophysical’s results for the period from October 1, 2010 to September 30, 2011 (“Fiscal 2011”), are included in the Company’s financial results for 2011, and the Company’s share of INOVA Geophysical’s results for the period from March 26, 2010 to September 30, 2010 (“Fiscal 2010”), are included in the Company’s financial results for 2010.

The following table reflects summarized financial information for INOVA Geophysical as of September 30, 2012 and 2011 and for Fiscal 2012, Fiscal 2011 and Fiscal 2010 (in thousands):

	September 30,
	2012		2011
Current assets	$	138,401	$	104,291
Non-current assets	101,280		108,039
Current liabilities	78,241		38,849
Non-current liabilities	9,290		25,701
Equity	$	152,150	$	147,780

	Fiscal 2012		Fiscal 2011				Fiscal 2010
Total net revenues	$	188,336	$	138,735			$	47,609
Gross profit (loss)	$	39,320	$	5,765		(A)	$	(21,574	)	(B)
Income (loss) from operations	$	3,241	$	(41,836	)		$	(45,423	)
Net income (loss)	$	2,197	$	(46,033	)		$	(48,416	)

(A) Includes approximately $15.7 million of excess inventory charge reflected in INOVA’s third quarter of 2011 and ION’s fourth quarter of 2011.

(B) Includes approximately $19.3 million of excess inventory charge reflected in INOVA’s third quarter of 2010 and ION’s fourth quarter of 2010.

The difference between the amount of the Company’s share in INOVA Geophysical’s net income (loss) for Fiscal 2012 and Fiscal 2011 and the “Equity in earnings (losses) of INOVA Geophysical” reflected on the Consolidated Statement of Operations for the years ended December 31, 2012 and 2011 is primarily due to transactions between the Company’s multi-client data library business and INOVA Geophysical, specifically the Company’s rental of land seismic equipment from INOVA Geophysical to acquire seismic data for its new venture projects. The Company initially defers its 49% of the net income related to these intercompany sales, which will then be recognized over time in proportion to the amortization expense of the associated data library.

XML

Segment and Geographic Information (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	$ 820,583	$ 674,058
North America [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	533,035	463,287
Europe [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	91,101	59,730
Middle East [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	130,070	111,336
Latin America [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	51,692	28,692
Other [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	14,685	11,013
Solutions [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	438,663	321,384
Systems [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	156,484	179,154
Software [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	45,948	38,949
Corporate and Other [Member]
Segment Reporting of Assets by Segments and Geographical Areas
Total assets	$ 179,488	$ 134,571

XML

Stockholders' Equity and Stock-Based Compensation (Details 3) (Restricted stock and restricted stock unit [Member])	12 Months Ended
	Dec. 31, 2012
Restricted stock and restricted stock unit [Member]
Status of the Company's restricted stock and restricted stock unit awards
Total nonvested, Beginning balance	1,154,795
Granted	667,000
Vested	(764,704)
Forfeited	(23,644)
Total nonvested, Ending balance	1,033,447

XML

Property Plant and Equipment (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Abstract]
Depreciation and amortization under capital leases	$ 12,500,000	$ 9,400,000	$ 15,700,000
Write-down of marine equipment	$ 5,928,000	$ 0	$ 0

XML

Benefit Plans

12 Months Ended

Dec. 31, 2012

Compensation and Retirement Disclosure [Abstract]

Benefit Plans

Benefit Plans

The Company has a 401(k) retirement savings plan, which covers substantially all employees. Employees may voluntarily contribute up to 60% of their compensation, as defined, to the plan. Effective June 1, 2000, the Company adopted a company matching contribution to the 401(k) plan. The Company matched the employee contribution at a rate of 50% of the first 6% of compensation contributed to the plan. In April 2009, the Company suspended its match to employee’s 401(k) plan contributions, but reinstated its matching contributions in April 2010. Company contributions to the plans were $1.4 million, $1.3 million, and $0.9 million, during 2012, 2011 and 2010, respectively.

XML

Long-term Debt, Lease Obligations and Interest Rate Caps (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	May 29, 2012	Dec. 31, 2011
Obligations
Outstanding term loan indebtedness under Credit Facility	$ 97,250	$ 98,300	$ 0
Term loan facility	0		99,250
Facility lease obligation	2,334		3,047
Equipment capital leases	5,744		2,815
Total	105,328		105,112
Current portion of long-term debt and lease obligations	(3,496)		(5,770)
Non-current portion of long-term debt and lease obligations	$ 101,832		$ 99,342

XML

Net Income (Loss) Per Common Share (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Computation of basic and diluted net income (loss) per common share

The following table summarizes the computation of basic and diluted net income (loss) per common share (in thousands, except per share amounts):

	Years Ended December 31,
	2012		2011		2010
Net income (loss) applicable to common shares	$	61,963	$	23,422	$	(38,774	)
Income impact of assumed Series D Preferred Stock conversion	1,352		—		—
Net income after assumed Series D Preferred Stock conversion	$	63,315	$	23,422	$	(38,774	)
Weighted average number of common shares outstanding	155,801		154,811		144,278
Effect of dilutive stock awards	899		1,279		—
Effect of Series D Preferred Stock	6,065		—		—
Weighted average number of diluted common shares outstanding	162,765		156,090		144,278
Basic net income (loss) per share	$	0.40	$	0.15	$	(0.27	)
Diluted net income (loss) per share	$	0.39	$	0.15	$	(0.27	)

XML

Stockholder's Equity and Stock-Based Compensation

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stockholders' Equity and Stock-Based Compensation

Stockholders’ Equity and Stock-Based Compensation

Stock Option Plans

The Company has adopted stock option plans for eligible employees, directors, and consultants, which provide for the granting of options to purchase shares of common stock. As of December 31, 2012, there were 7,928,350 outstanding options under the Company’s stock option plans, and 2,938,928 shares available for future grant and issuance.

The options under these plans generally vest in equal annual installments over a four-year period and have a term of ten years. These options are typically granted with an exercise price per share equal to or greater than the current market price and, upon exercise, are issued from the Company’s unissued common shares. In August 2006, the Compensation Committee of the Board of Directors of the Company approved fixed pre-established quarterly grant dates for all future grants of options.

Transactions under the stock option plans are summarized as follows:

	Option Price per Share	Outstanding		Vested		Available for Grant
January 1, 2010	$1.07-$16.39	7,766,188		5,042,682		410,873
Increase in shares authorized	—	—		—		2,500,000
Granted	3.42-7.19	1,249,900		—		(1,249,900	)
Vested	—	—		1,370,897		—
Exercised	1.07-7.31	(323,610	)	(323,610	)	—
Cancelled/forfeited	1.07-16.12	(970,686	)	(700,561	)	674,363
Restricted stock granted out of option plans	—	—		—		(762,680	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		76,044
December 31, 2010	2.49-16.39	7,721,792		5,389,408		1,648,700
Increase in shares authorized	—	—		—		5,000,000
Granted	5.81-10.09	1,559,400		—		(1,559,400	)
Vested	—	—		851,222		—
Exercised	2.49-11.51	(2,145,792	)	(2,145,792	)	—
Cancelled/forfeited	3.00-15.43	(344,100	)	(250,300	)	262,513
Restricted stock granted out of option plans	—	—		—		(651,661	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		93,488
December 31, 2011	2.49-16.39	6,791,300		3,844,538		4,793,640
Granted	5.96-7.16	1,544,000		—		(1,544,000	)
Vested	—	—		1,060,275		—
Exercised	2.49-7.76	(194,410	)	(194,410	)	—
Cancelled/forfeited	2.49-15.43	(212,540	)	(119,165	)	127,125
Restricted stock granted out of option plans	—	—		—		(667,000	)
Restricted stock forfeited or cancelled for employee minimum income taxes and returned to the plans	—	—		—		229,163
December 31, 2012	$2.80-$16.39	7,928,350		4,591,238		2,938,928

Stock options outstanding at December 31, 2012 are summarized as follows:

Option Price per Share	Outstanding	Weighted Average Exercise Price of Outstanding Options		Weighted Average Remaining Contract Life	Vested	Weighted Average  Exercise Price of Vested Options
$2.80 - $4.58	1,400,175	$	3.36	6.1	1,258,425	$	3.36
4.90 - 7.45	4,783,225	$	6.30	8.1	1,606,613	$	6.31
7.76 - 13.29	824,500	$	9.96	3.6	805,750	$	9.96
14.03 - 16.39	920,450	$	15.22	5.0	920,450	$	15.22
Totals	7,928,350	$	7.19	6.9	4,591,238	$	7.98

Additional information related to the Company’s stock options is as follows:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Contractual Life in Years	Aggregate Intrinsic Value (000’s)
Total outstanding at January 1, 2012	6,791,300		$	7.42			7.1
Options granted	1,544,000		$	6.05	$	3.54
Options exercised	(194,410	)	$	4.15
Options cancelled	(93,375	)	$	5.98
Options forfeited	(119,165	)	$	10.29
Total outstanding at December 31, 2012	7,928,350		$	7.19			6.9	$	6,510
Options exercisable and vested at December 31, 2012	4,591,238		$	7.98			5.4	$	4,664

The total intrinsic value of options exercised during 2012, 2011, and 2010 was $0.6 million, $13.3 million and $0.9 million, respectively. Cash received from option exercises under all share-based payment arrangements for 2012, 2011, and 2010 was $0.8 million, $13.1 million and $1.1 million, respectively. The weighted average grant date fair value for stock option awards granted during 2012, 2011, and 2010 was $3.54, $4.00, and $3.81 per share, respectively.

Restricted Stock and Restricted Stock Unit Plans

The Company has issued restricted stock and restricted stock units under the Company’s 2004 Long-Term Incentive Plan and other applicable plans. Restricted stock units are awards that obligate the Company to issue a specific number of shares of common stock in the future if continued service vesting requirements are met. Non-forfeitable ownership of the common stock will vest over a period as determined by the Company in its sole discretion, generally in equal annual installments over a three-year period. Shares of restricted stock awarded may not be sold, assigned, transferred, pledged or otherwise encumbered by the grantee during the vesting period.

The status of the Company’s restricted stock and restricted stock unit awards for 2012 is as follows:

	Number of  Shares/Units
Total nonvested at January 1, 2012	1,154,795
Granted	667,000
Vested	(764,704	)
Forfeited	(23,644	)
Total nonvested at December 31, 2012	1,033,447

At December 31, 2012, the intrinsic value of restricted stock and restricted stock unit awards was approximately $6.7 million. The weighted average grant date fair value for restricted stock and restricted stock unit awards granted during 2012, 2011, and 2010 was $6.05, $6.34, and $6.30 per share, respectively. The total fair value of shares vested during 2012, 2011, and 2010 was $4.6 million, $3.3 million, and $3.3 million, respectively.

Employee Stock Purchase Plan

In June 2010, the Company adopted an Employee Stock Purchase Plan (“ESPP”) to replace the prior ESPP, which terminated on December 31, 2008. The ESPP allows all eligible employees to authorize payroll deductions at a rate of 1% to 10% of base compensation (or a fixed amount per pay period) for the purchase of the Company’s common stock. Each participant is limited to purchase no more than 500 shares per offering period or 1,000 shares annually. Additionally, no participant may purchase shares in any calendar year that exceeds $10,000 in fair market value based on the fair market value of the stock on the offering commencement date. The purchase price of the common stock is the lesser of 85% of the closing price on the first day of the applicable offering period (or most recently preceding trading day) or 85% of the closing price on the last day of the offering period (or most recently preceding trading day). Each offering period is six months and commences on February 1 and August 1 of each year. The ESPP is considered a compensatory plan under ASC 718, and the Company recorded compensation expense of approximately $0.3 million and $0.3 million and $0.0 million during 2012, 2011 and 2010, respectively. The expense represents the estimated fair value of the look-back purchase option. The fair value was determined using the Black-Scholes option pricing model and was recognized over the purchase period. The total number of shares of common stock authorized and available for issuance under ESPP is 1,265,311. The maximum number of shares of common stock that may be purchased for each offering period is 100,000 (200,000 annually).

Stock Appreciation Rights Plan

The Company has adopted a stock appreciation rights plan which provides for the award of stock appreciation rights (“SARs”) to directors and selected key employees and consultants. The awards under this plan are subject to the terms and conditions set forth in agreements between the Company and the holders. The exercise price per SAR is not to be less than one hundred percent of the fair market value of a share of common stock on the date of grant of the SAR. The term of each SAR shall not exceed ten years from the grant date. Upon exercise of a SAR, the holder shall receive a cash payment in an amount equal to the spread specified in the SAR agreement for which the SAR is being exercised. In no event will any shares of common stock be issued, transferred or otherwise distributed under the plan.

As of December 31, 2012, the Company had outstanding 140,000 SAR awards to one individual with an exercise price of $3.00. The Company recorded less than $0.1 million, $0.3 million and less than $0.1 million, respectively, of share-based compensation expense during 2012, 2011 and 2010 related to employee stock appreciation rights. Pursuant to ASC 718, the stock appreciation rights are considered liability awards and as such, these amounts are accrued in the liability section of the balance sheet.

Valuation Assumptions

The Company calculated the fair value of each stock option on the date of grant using the Black-Scholes option pricing model. The following assumptions were used for each respective period:

	Years Ended December 31,
	2012		2011		2010
Risk-free interest rates	0.7% – 1.0%		1.1% – 1.9%		1.5% – 2.5%
Expected lives (in years)	5.5		5.5		5.5
Expected dividend yield	—	%	—	%	—	%
Expected volatility	67.8% – 72.2%		65.9% – 80.2%		67.4% – 71.6%

The computation of expected volatility during 2012, 2011 and 2010 was based on an equally weighted combination of historical volatility and market-based implied volatility. Historical volatility was calculated from historical data for a period of time approximately equal to the expected term of the option award, starting from the date of grant. Market-based implied volatility was derived from traded options on the Company’s common stock having a term of six months. The Company’s computation of expected life in 2012, 2011 and 2010 was determined based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards, vesting schedules, and expectations of future employee behavior. The risk-free interest rate assumption is based upon the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the option.

Stock-based Compensation Expense

The following table summarizes stock-based compensation expense for the years ended December 31, 2012, 2011 and 2010 as follows (in thousands):

	Years Ended December 31,
	2012			2011			2010
Stock-based compensation expense	$	6,598		$	6,344		$	8,147
Tax benefit related thereto	(2,056		)	(1,976		)	(2,633		)
Stock-based compensation expense, net of tax	$	4,542		$	4,368		$	5,514

XML

Certain Relationships and Related Party Transactions (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Related Party Transaction [Line Items]
Receivables due from BGP	$ 1.6	$ 15.2
Owed to related party for unpaid services	9.3
Majority Shareholder [Member]
Related Party Transaction [Line Items]
Related party transaction, revenues from transactions with related party	13.7	34.5	16.9
Company's outstanding common stock owned by BGP	15.20%
Paid to related party for seismic acquisition services	2.0
Equity Method Investee [Member]
Related Party Transaction [Line Items]
Related party transaction, revenues from transactions with related party	3.5
Per month payment to third-party and lease costs incurred by the administrative support of INOVA Geophysical	0.3
Term of the support and transition agreement	2 years
Board of Directors Chairman [Member]
Related Party Transaction [Line Items]
Company's outstanding common stock owned by BGP	6.40%
Payment for lease of commercial property	4.1
Manufacturing Facility [Member]
Related Party Transaction [Line Items]
Payment for lease of commercial property	3.2
Rent and other pass through third party facilities charges [Member] | Board of Directors Chairman [Member]
Related Party Transaction [Line Items]
Per month payment to third-party and lease costs incurred by the administrative support of INOVA Geophysical		6.3	3.1
Payment for lease of commercial property	0.6
Other services [Member] | Board of Directors Chairman [Member]
Related Party Transaction [Line Items]
Payment for lease of commercial property	$ 0.3