10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10‑Q

(Mark One)

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

For the quarterly period ended June 30, 2015

or

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

For the transition period from_____________________to__________

Commission File Number 1‑3473

TESORO CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	95‑0862768
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
19100 Ridgewood Pkwy, San Antonio, Texas 78259-1828
(Address of principal executive offices) (Zip Code)
210-626-6000
(Registrant’s telephone number, including area code)

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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes þ No ¨

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 definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

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

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

There were 123,096,730 shares of the registrant’s Common Stock outstanding at August 3, 2015.

TESORO CORPORATION

QUARTERLY REPORT ON FORM 10-Q

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2015

TABLE OF CONTENTS

PART I. FINANCIAL INFORMATION	Page
Item 1. Financial Statements (Unaudited)
Condensed Statements of Consolidated Operations - Three and Six Months Ended June 30, 2015 and 2014	3
Condensed Consolidated Balance Sheets - June 30, 2015 and December 31, 2014	4
Condensed Statements of Consolidated Cash Flows - Six Months Ended June 30, 2015 and 2014	5
Notes to Condensed Consolidated Financial Statements	6
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	30
Item 3. Quantitative and Qualitative Disclosures About Market Risk	57
Item 4. Controls and Procedures	59
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	60
Item 1A. Risk Factors	60
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	61
Item 5. Other Information	62
Item 6. Exhibits	62
SIGNATURES	63

2

PART I — FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

TESORO CORPORATION

CONDENSED STATEMENTS OF CONSOLIDATED OPERATIONS

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In millions, except per share amounts)
Revenues (a)	$	8,232		$	11,104		$	14,695		$	21,037
Costs and Expenses:
Cost of sales (a)	6,398			9,867			11,738			18,815
Operating expenses	578			598			1,087			1,189
Selling, general and administrative expenses	61			92			152			123
Depreciation and amortization expense	182			135			361			265
(Gain) loss on asset disposals and impairments	4			2			8			(3		)
Operating Income	1,009			410			1,349			648
Interest and financing costs, net	(54		)	(41		)	(109		)	(118		)
Other income, net	3			3			2			2
Earnings Before Income Taxes	958			372			1,242			532
Income tax expense	334			132			430			188
Net Earnings from Continuing Operations	624			240			812			344
Loss from discontinued operations, net of tax	(4		)	—			(4		)	(1		)
Net Earnings	620			240			808			343
Less: Net earnings from continuing operations attributable to    noncontrolling interest	38			16			81			41
Net Earnings Attributable to Tesoro Corporation	$	582		$	224		$	727		$	302
Net Earnings (Loss) Attributable to Tesoro Corporation
Continuing operations	$	586		$	224		$	731		$	303
Discontinued operations	(4		)	—			(4		)	(1		)
Total	$	582		$	224		$	727		$	302
Net Earnings (Loss) per Share - Basic:
Continuing operations	$	4.67		$	1.73		$	5.84		$	2.33
Discontinued operations	(0.03		)	—			(0.03		)	(0.01		)
Total	$	4.64		$	1.73		$	5.81		$	2.32
Weighted average common shares outstanding - Basic	125.2			129.3			125.2			130.3
Net Earnings (Loss) per Share - Diluted:
Continuing operations	$	4.62		$	1.70		$	5.77		$	2.29
Discontinued operations	(0.03		)	—			(0.03		)	(0.01		)
Total	$	4.59		$	1.70		$	5.74		$	2.28
Weighted average common shares outstanding - Diluted	126.3			131.5			126.6			132.7
Dividends per Share	$	0.425		$	0.250		$	0.850		$	0.500
Supplemental Information:
(a) Includes excise taxes collected by our marketing segment	$	146		$	152		$	286		$	293

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

TESORO CORPORATION

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	June 30, 2015			December 31, 2014
	(In millions, except share data)
ASSETS
Current Assets
Cash and cash equivalents (TLLP: $13 and $19, respectively)	$	978		$	1,000
Receivables, net of allowance for doubtful accounts	1,305			1,435
Inventories	2,444			2,439
Prepayments and other current assets	171			200
Total Current Assets	4,898			5,074
Net Property, Plant and Equipment (TLLP: $3,375 and $3,306, respectively)	9,294			9,045
Other Noncurrent Assets
Acquired intangibles, net (TLLP: $959 and $973, respectively)	1,200			1,222
Other, net (TLLP: $249 and $251, respectively)	1,299			1,150
Total Other Noncurrent Assets	2,499			2,372
Total Assets	$	16,691		$	16,491
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable	$	1,955		$	2,470
Current maturities of debt, net of unamortized issuance costs	403			6
Other current liabilities	1,046			990
Total Current Liabilities	3,404			3,466
Deferred Income Taxes	1,179			1,098
Other Noncurrent Liabilities	917			790
Debt, Net of Unamortized Issuance Costs (TLLP: $2,586 and $2,544, respectively)	3,808			4,161
Commitments and Contingencies (Note 10)
Equity
Tesoro Corporation Stockholders’ Equity
Common stock, par value $0.162/3; authorized 200,000,000 shares; 158,379,915 shares issued (156,627,604 in 2014)	26			26
Additional paid-in capital	1,331			1,255
Retained earnings	5,262			4,642
Treasury stock, 35,306,277 common shares (31,677,195 in 2014), at cost	(1,633		)	(1,320		)
Accumulated other comprehensive loss	(149		)	(149		)
Total Tesoro Corporation Stockholders’ Equity	4,837			4,454
Noncontrolling Interest	2,546			2,522
Total Equity	7,383			6,976
Total Liabilities and Equity	$	16,691		$	16,491

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

TESORO CORPORATION

CONDENSED STATEMENTS OF CONSOLIDATED CASH FLOWS

(Unaudited)

	Six Months Ended June 30,
	2015			2014
	(In millions)
Cash Flows From (Used In) Operating Activities
Net earnings	$	808		$	343
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation and amortization expense	361			265
Debt redemption charges	—			31
Stock-based compensation expense	35			8
Deferred income taxes	46			24
Deferred charges	(167		)	(79		)
Other non-cash operating activities	45			(13		)
Changes in current assets and current liabilities	(221		)	(203		)
Net cash from operating activities	907			376
Cash Flows From (Used In) Investing Activities
Capital expenditures	(540		)	(260		)
Acquisitions	(6		)	(17		)
Other investing activities	(2		)	10
Net cash used in investing activities	(548		)	(267		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	262			228
Repayments on revolving credit agreements	(223		)	—
Proceeds from debt offering	—			300
Repayments of debt	(3		)	(302		)
Dividend payments	(107		)	(65		)
Net proceeds from issuance of Tesoro Logistics LP common units	45			—
Distributions to noncontrolling interest	(90		)	(42		)
Purchases of common stock	(269		)	(200		)
Other financing activities	4			(27		)
Net cash used in financing activities	(381		)	(108		)
Increase (Decrease) in Cash and Cash Equivalents	(22		)	1
Cash and Cash Equivalents, Beginning of Period	1,000			1,238
Cash and Cash Equivalents, End of Period	$	978		$	1,239

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 1 – BASIS OF PRESENTATION

As used in this report, the terms “Tesoro,” “we,” “us” or “our” may refer to Tesoro Corporation, one or more of its consolidated subsidiaries or all of them taken as a whole. The words “we,” “us” or “our” generally include Tesoro Logistics LP (“TLLP”) and its subsidiaries as consolidated subsidiaries of Tesoro Corporation with certain exceptions where there are transactions or obligations between TLLP and Tesoro Corporation or its other subsidiaries. When used in descriptions of agreements and transactions, “TLLP” or the “Partnership” refers to TLLP and its consolidated subsidiaries, including its ownership interest in QEP Midstream Partners, LP (“QEPM”) and its subsidiaries.

The interim condensed consolidated financial statements and notes thereto of Tesoro Corporation and its subsidiaries have been prepared by management without audit according to the rules and regulations of the Securities and Exchange Commission (“SEC”). The accompanying condensed consolidated financial statements reflect all adjustments that, in the opinion of management, are necessary for a fair presentation of results for the periods presented. Such adjustments are of a normal recurring nature, unless otherwise disclosed.

The consolidated balance sheet at December 31, 2014 has been condensed from the audited consolidated financial statements at that date. Certain information and notes normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the SEC’s rules and regulations. However, management believes that the disclosures presented herein are adequate to present the information fairly. The accompanying condensed consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2014.

We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the reported amounts and disclosures of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented. We review our estimates on an ongoing basis. Changes in facts and circumstances may result in revised estimates and actual results could differ from those estimates. The results of operations for any interim period are not necessarily indicative of results for the full year. Certain prior year balances have been aggregated or disaggregated in order to conform to the current year presentation. Due to there being no adjustments to accumulated other comprehensive income for the three and six months ended June 30, 2015 and 2014, consolidated statements of comprehensive income have been omitted.

As of June 30, 2015, we revised our operating segments to include refining, TLLP and a new marketing segment. Comparable prior period information has been recast to reflect our revised segment presentation. See Note 13 for additional information.

Our condensed consolidated financial statements include TLLP, a variable interest entity. As the general partner of TLLP, we have the sole ability to direct the activities of TLLP that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are TLLP’s primary customer. Under our various long-term, fee-based commercial agreements with TLLP, transactions with us accounted for 56% of TLLP’s total revenues for the three and six months ended June 30, 2015 and 88% for the three and six months ended June 30, 2014. In the event TLLP incurs a loss, our operating results will reflect TLLP’s loss, net of intercompany eliminations. See Note 2 for additional information relating to TLLP.

On September 25, 2013, we completed the sale of all of our interest in Tesoro Hawaii, LLC, which operated a 94 thousand barrel per day Hawaii refinery, retail stations and associated logistics assets (the “Hawaii Business”). The results of operations for this business have been presented as discontinued operations in the condensed statements of consolidated operations for the three and six months ended June 30, 2015 and 2014. There were no revenues for either the three and six months ended June 30, 2015 or 2014. There were $6 million and $4 million of recorded losses, before and after tax, respectively, for each of the three and six months ended June 30, 2015. There were no recorded losses, before or after tax, related to the Hawaii Business for the three months ended June 30, 2014 and a loss of $1 million, before and after tax, for the six months ended June 30, 2014. Cash flows used in operating activities were $1 million for the six months ended June 30, 2014. There were no cash flows for the six months ended June 30, 2015. Unless otherwise noted, the information in the notes to the condensed consolidated financial statements relates to our continuing operations.

6

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

New Accounting Standards and Disclosures

Revenue Recognition. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which provides accounting guidance for all revenue arising from contracts to provide goods or services to customers. ASU 2014-09 is effective for interim and annual periods beginning after December 15, 2017 given the FASB’s recent deferral of ASU 2014-09’s effective date. Entities may choose to early adopt ASU 2014-09 as of the original effective date. The standard allows for either full retrospective adoption or modified retrospective adoption. At this time, we are evaluating the guidance to determine the method, timing and the impact of adopting ASU 2014-09 with regard to our financial statements and related disclosures.

Consolidation.  In February 2015, the FASB issued Accounting Standard Update 2015-02, “Amendments to the Consolidation Analysis” (“ASU 2015-02”). This standard modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. ASU 2015-02 is effective for interim and annual periods beginning after December 15, 2015, and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted. At this time, we are evaluating the potential impact of this standard on our financial statements, as well as the available transition methods.

Debt Issuance Costs. In April 2015, the FASB issued Accounting Standard Update 2015-03, “Interest - Imputation of Interest” (“ASU 2015-03”), which will simplify the presentation of debt issuance costs. Under ASU 2015-03, debt issuance costs related to a recognized debt liability will be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability. As a result, our balance sheet will reflect a reclassification of unamortized debt issuance costs from other noncurrent assets to debt. ASU 2015-03 is effective for interim and annual periods beginning after December 15, 2015, and early adoption is permitted. We have adopted this standard effective as of March 31, 2015 and applied the changes retrospectively to prior periods presented. Adoption of this standard has resulted in the reclassification of $93 million from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of$84 millionare recorded as a reduction to debt on the balance sheet at June 30, 2015.

NOTE 2 – TESORO LOGISTICS LP

TLLP is a publicly traded limited partnership that was formed to own, operate, develop and acquire logistics assets. Its assets are integral to the success of Tesoro’s refining and marketing operations and are used to gather crude oil and natural gas, process natural gas, and distribute, transport and store crude oil and refined products. TLLP’s gathering assets consist of crude oil gathering systems in the Williston Basin located in North Dakota and natural gas gathering systems in the Green River and Uinta Basins located in Wyoming and Utah. Its processing assets include four gas processing complexes and a fractionation facility in or around the Green River and Uinta Basins. Its terminalling and transportation assets consist of:

• 24 crude oil and refined products terminals and storage facilities in the western and midwestern United States;

• four marine terminals in California;

• 130 miles of pipelines, which transport products and crude oil from Tesoro’s refineries to nearby facilities in Salt Lake City, Utah and Los Angeles, California;

• the Northwest Products Pipeline, which includes a regulated common carrier products pipeline running from Salt Lake City, Utah to Spokane, Washington and a jet fuel pipeline to the Salt Lake City International Airport;

• a rail-car unloading facility in Washington;

• a petroleum coke handling and storage facility in Los Angeles, California; and

• a regulated common carrier refined products pipeline system connecting Tesoro’s Kenai refinery terminals to terminals in Anchorage, Alaska.

TLLP provides us with various pipeline transportation, trucking, terminal distribution, storage and coke-handling services under long-term, fee-based commercial agreements. Each of these agreements, with the exception of the storage and transportation services agreement, contain minimum volume commitments. We do not provide financial or equity support through any liquidity arrangements or financial guarantees to TLLP.

Tesoro Logistics GP, LLC (“TLGP”), our wholly-owned subsidiary, serves as the general partner of TLLP. We held an approximate 36% interest in TLLP at both June 30, 2015 and December 31, 2014, including a 2% general partner interest and all of the incentive distribution rights. This interest at June 30, 2015 includes 28,181,748 common units and 1,631,448 general partner units.

7

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

TLLP acquired assets related to, and entities engaged in, natural gas gathering, transportation and processing in Wyoming, Colorado, Utah, and North Dakota (the “Rockies Natural Gas Business”) through its acquisition of QEP Field Services, LLC (“QEPFS”) from QEP Resources, Inc. on December 2, 2014 for $2.5 billion. At the acquisition date, QEPFS held an approximate 56% limited partner interest in QEPM, consisting of 3,701,750 common units and 26,705,000 subordinated units, and 100% of QEPM’s general partner, QEP Midstream Partners GP, LLC (“QEPM GP”), which itself held a 2% general partner interest and all of the incentive distribution rights in QEPM. All intercompany transactions with TLLP and QEPM are eliminated upon consolidation.

On April 6, 2015, TLLP entered into an Agreement and Plan of Merger (the “Merger Agreement”) with TLGP, QEPFS, TLLP Merger Sub LLC (“Merger Sub”), QEPM, and QEPM GP. In July 2015, TLLP and QEPM completed the transaction, in which the Merger Sub merged with and into QEPM, with QEPM surviving the merger as a wholly owned subsidiary of TLLP (the “Merger”). Following the Merger, QEPM GP remains the general partner of QEPM, and all outstanding common units representing limited partnership interests in QEPM other than QEPM Common Units held by QEPFS (the “QEPM Common Units”) were converted into the right to receive 0.3088 common units representing limited partnership interests in TLLP (the “TLLP Common Units”). The Merger was completed July 22, 2015 and TLLP issued approximately 7.1 million TLLP Common Units to QEPM unitholders. No fractional TLLP Common Units were issued in the Merger, and holders of QEPM Common Units other than QEPFS received cash in lieu of fractional TLLP Common Units.

TLLP’s allocation of the Rockies Natural Gas Business acquisition’s $2.5 billion purchase price remains preliminary as of June 30, 2015. During the six months ended June 30, 2015, the original purchase price was increased by $6 million for the settlement of acquisition date net working capital amounts. Finalization of the purchase price allocation is pending and adjustments can be made through the end of TLLP’s measurement period, which is not to exceed one year from the acquisition date. The table below reflects the preliminary acquisition date purchase price allocation as of June 30, 2015 (in millions):

Cash	$	32
Accounts receivable	120
Prepayments and other	8
Property, plant and equipment	1,735
Acquired intangibles	976
Other noncurrent assets (a)	233
Accounts payable	(72		)
Other current liabilities	(50		)
Other noncurrent liabilities	(34		)
Noncontrolling interest	(432		)
Total Purchase Price	$	2,516

____________________

(a) Other noncurrent assets include $153 million of goodwill.

NOTE 3 – EARNINGS PER SHARE

We compute basic earnings per share by dividing net earnings attributable to Tesoro Corporation stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share include the effects of potentially dilutive shares outstanding during the period. Our share calculations are presented below (in millions):

	Three Months Ended June 30,		Six Months Ended June 30,
	2015	2014	2015	2014
Weighted average common shares outstanding	125.2	129.3	125.2	130.3
Common stock equivalents	1.1	2.2	1.4	2.4
Total Diluted Shares	126.3	131.5	126.6	132.7

Potentially dilutive common stock equivalents are excluded from the calculation of diluted earnings per share if the effect of including such securities in the calculation would have been anti-dilutive. Anti-dilutive securities were 0.6 millionand 0.1 million for the three months ended June 30, 2015 and 2014, respectively, and 0.4 millionand 0.5 million for the six months ended June 30, 2015 and 2014, respectively.

8

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 4 – INVENTORIES

Components of inventories were as follows (in millions):

	June 30, 2015		December 31, 2014
Domestic crude oil and refined products	$	2,031	$	1,930
Foreign subsidiary crude oil	224		351
Other inventories	189		158
Total Inventories	$	2,444	$	2,439

The total carrying value of our crude oil and refined product inventories was less than replacement cost by approximately $578 million at June 30, 2015. Due to the declining crude oil and refined product pricing environment at the end of 2014, we recorded a lower of cost or market adjustment to cost of sales of $42 million at December 31, 2014 for our crude oil, refined products, oxygenates and by-product inventories. This adjustment was reversed in the first quarter of 2015 as the inventories associated with the adjustment at the end of 2014 were sold or used during the first quarter of 2015.

NOTE 5 - PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment, at cost, is as follows (in millions):

	June 30, 2015			December 31, 2014
Refining	$	7,302		$	6,994
TLLP	3,694			3,551
Marketing	841			834
Corporate	256			254
Property, plant and equipment, at cost	12,093			11,633
Accumulated depreciation	(2,799		)	(2,588		)
Net Property, Plant and Equipment	$	9,294		$	9,045

We capitalize interest as part of the cost of major projects during the construction period. Capitalized interest totaled $9 million and $5 million for the three months ended June 30, 2015 and 2014, respectively, and $18 million and $10 million for the six months ended June 30, 2015 and 2014, respectively, and is recorded as a reduction to net interest and financing costs in our condensed statements of consolidated operations.

NOTE 6 - DERIVATIVE INSTRUMENTS

In the ordinary course of business, our profit margins, earnings and cash flows are impacted by the timing, direction and overall change in pricing for commodities used throughout our operations. We use non-trading derivative instruments to manage our exposure to the following:

• price risks associated with the purchase or sale of feedstocks, refined products and energy supplies related to our refineries, terminals, marketing fuel inventory and customers;

• price risks associated with inventories above or below our target levels;

• future emission credit requirements; and

• exchange rate fluctuations on our purchases of Canadian crude oil.

Our accounting for derivative instruments depends on whether the underlying commodity will be used or sold in the normal course of business. For contracts where the crude oil or refined products are expected to be used or sold in the normal course of business, we apply the normal purchase normal sale exception and follow the accrual method of accounting. All other derivative instruments are recorded at fair value using mark-to-market accounting.

9

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Our derivative instruments include forward purchase and sale contracts (“Forward Contracts”), exchange-traded futures (“Futures Contracts”), over-the-counter swaps (“OTC Swap Contracts”), options (“Options”), and over-the-counter options (“OTC Option Contracts”). Forward Contracts are agreements to buy or sell the commodity at a predetermined price at a specified future date. Futures Contracts are standardized agreements, traded on a futures exchange, to buy or sell the commodity at a predetermined price at a specified future date. Options provide the right, but not the obligation to buy or sell the commodity at a specified price in the future. OTC Swap Contracts and OTC Option Contracts require cash settlement for the commodity based on the difference between a contracted fixed or floating price and the market price on the settlement date. Certain of these contracts require cash collateral to be received or paid if our asset or liability position, respectively, exceeds specified thresholds. We believe that we have minimal credit risk with respect to our counterparties.

The following table presents the fair value (in millions) of our derivative instruments as of June 30, 2015 and December 31, 2014. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under the terms of our master netting arrangements including cash collateral on deposit with, or received from, brokers. We offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists. As a result, the asset and liability amounts below will not agree with the amounts presented in our condensed consolidated balance sheets.

		Derivative Assets						Derivative Liabilities
	Balance Sheet Location	June 30, 2015			December 31, 2014			June 30, 2015			December 31, 2014
Commodity Futures Contracts	Prepayments and other current assets	$	388		$	1,201		$	403		$	1,025
Commodity OTC Swap Contracts	Receivables	3			—			—			—
Commodity OTC Swap Contracts	Accounts payable	—			—			1			1
Commodity Forward Contracts	Receivables	1			3			—			—
Commodity Forward Contracts	Accounts payable	—			—			1			1
Total Gross Mark-to-Market    Derivatives		392			1,204			405			1,027
Less: Counterparty Netting and    Cash Collateral (a)		(327		)	(1,136		)	(386		)	(1,024		)
Total Net Fair Value of Derivatives		$	65		$	68		$	19		$	3

________________

(a) As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions. Cash collateral amounts are netted with mark-to-market derivative assets.

Gains (losses) for our mark-to market derivatives for the three and six months ended June 30, 2015 and 2014 were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Commodity Futures Contracts	$	(86	)	$	(77	)	$	(43	)	$	(77	)
Commodity OTC Swap Contracts	(2		)	(2		)	(2		)	(3		)
Commodity Forward Contracts	12			3			14			4
Foreign Currency Forward Contracts	—			2			(2		)	—
Total Loss on Mark-to-Market Derivatives	$	(76	)	$	(74	)	$	(33	)	$	(76	)

10

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

The income statement location of gains (losses) for our mark-to market derivatives above were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Revenues	$	(6	)	$	—		$	(2	)	$	1
Cost of sales	(70		)	(76		)	(29		)	(77		)
Other income (expense), net	—			2			(2		)	—
Total Loss on Mark-to-Market Derivatives	$	(76	)	$	(74	)	$	(33	)	$	(76	)

Open Long (Short) Positions

The information below presents the net volume of outstanding commodity and other contracts by type of instrument, year of maturity and unit of measure as of June 30, 2015 (units in thousands):

	Contract Volumes by Year of Maturity
Mark-to-Market Derivative Instrument	2015	2016	2017	Unit of Measure
Crude oil, refined products and blending products:
Futures - short	(7,084)	—	—	Barrels
Futures - long	—	200	—	Barrels
OTC Swaps - long	700	900	—	Barrels
Forwards - long	35	—	—	Barrels
Carbon credits:
Futures - long	2,050	1,000	1,000	Tons
Renewable identification numbers:
Futures - short	(400)	—	—	Gallons
Corn:
Futures - short	(3,080)	—	—	Bushels

At June 30, 2015, we had open Forward Contracts to purchase CAD $30 million that matured on July 24, 2015.

NOTE 7 – FAIR VALUE MEASUREMENTS

We classify financial assets and liabilities according to the fair value hierarchy. Financial assets and liabilities classified as level 1 instruments are valued using quoted prices in active markets for identical assets and liabilities. Level 2 instruments are valued using quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices, such as liquidity, that are observable for the asset or liability. Our level 2 instruments include derivatives valued using market quotations from independent price reporting agencies, third-party brokers and commodity exchange price curves that are corroborated with market data. Level 3 instruments are valued using significant unobservable inputs that are not supported by sufficient market activity. We do not have any financial assets or liabilities classified as level 3 at June 30, 2015 or December 31, 2014.

Our financial assets and liabilities measured at fair value on a recurring basis include derivative instruments. Additionally, our financial liabilities include obligations for Renewable Identification Numbers (“RINs”) and cap and trade emission credits for the state of California (together with RINs, our “Environmental Credit Obligations”). See Note 6 for further information on our derivative instruments. Our Environmental Credit Obligations represent the estimated fair value amount at each balance sheet date for which we do not have sufficient RINs and California cap and trade credits to satisfy our obligations to the U.S. Environmental Protection Agency (“EPA”) and the state of California, respectively. RINs are assigned to biofuels produced or imported into the U.S. as required by the EPA, which sets annual quotas for the percentage of biofuels that must be blended into transportation fuels consumed in the U.S. As a producer of petroleum transportation fuels, we are required to blend biofuels into the products we produce at a rate that will meet the EPA’s quota. We must purchase RINs in the open market to satisfy the requirement if we are unable to blend at that rate. Our liability for cap and trade emission credits for the state of California represent the deficit of credits to satisfy emission reduction requirements mandated in California’s Assembly Bill 32 for each period which stationary or transportation fuel carbon emissions exceed the level allowed by the regulation.

11

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Financial assets and liabilities recognized at fair value in our condensed consolidated balance sheets by level within the fair value hierarchy were as follows (in millions):

	June 30, 2015
	Level 1		Level 2		Level 3		Netting and Collateral (a)			Total
Assets:
Commodity Futures Contracts	$	375	$	13	$	—	$	(327	)	$	61
Commodity OTC Swap Contracts	—		3		—		—			3
Commodity Forward Contracts	—		1		—		—			1
Total Assets	$	375	$	17	$	—	$	(327	)	$	65
Liabilities:
Commodity Futures Contracts	$	391	$	12	$	—	$	(386	)	$	17
Commodity OTC Swap Contracts	—		1		—		—			1
Commodity Forward Contracts	—		1		—		—			1
Environmental Credit Obligations	—		30		—		—			30
Total Liabilities	$	391	$	44	$	—	$	(386	)	$	49

	December 31, 2014
	Level 1		Level 2		Level 3		Netting and Collateral (a)			Total
Assets:
Commodity Futures Contracts	$	1,165	$	36	$	—	$	(1,136	)	$	65
Commodity Forward Contracts	—		3		—		—			3
Total Assets	$	1,165	$	39	$	—	$	(1,136	)	$	68
Liabilities:
Commodity Futures Contracts	$	1,011	$	14	$	—	$	(1,024	)	$	1
Commodity OTC Swap Contracts	—		1		—		—			1
Commodity Forward Contracts	—		1		—		—			1
Environmental Credit Obligations	—		20		—		—			20
Total Liabilities	$	1,011	$	36	$	—	$	(1,024	)	$	23

________________

(a) Certain of our derivative contracts, under master netting arrangements, include both asset and liability positions. We offset both the fair value amounts and any related cash collateral amounts recognized for multiple derivative instruments executed with the same counterparty when there is a legally enforceable right and an intention to settle net or simultaneously. As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions.

We believe the carrying value of our other financial instruments, including cash and cash equivalents, receivables, accounts payable and certain accrued liabilities approximate fair value. Our fair value assessment incorporates a variety of considerations, including the short-term duration of the instruments (less than one percent of our trade receivables and payables are outstanding for greater than 90 days), and the expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk. The borrowings under the Tesoro Corporation revolving credit facility (the “Revolving Credit Facility”), the TLLP senior secured revolving credit agreement (the “TLLP Revolving Credit Facility”) and our term loan facility agreement (the “Term Loan Facility”), which include variable interest rates, approximate fair value. The fair value of our fixed rate debt is based on prices from recent trade activity and is categorized in level 2 of the fair value hierarchy. The carrying values of our debt were approximately$4.3 billion at both June 30, 2015 and December 31, 2014, and the fair values of our debt were approximately $4.4 billion and $4.3 billion at June 30, 2015 and December 31, 2014, respectively. These carrying and fair values of our debt do not include the unamortized issuance costs associated with our total debt.

12

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 8 – DEBT

Our debt balance, net of unamortized issuance costs, at June 30, 2015 and December 31, 2014 was as follows (in millions):

	June 30, 2015			December 31, 2014
Total debt (a)	$	4,291		$	4,255
Unamortized issuance costs (b) (c)	(80		)	(88		)
Current maturities, net of unamortized issuance costs	(403		)	(6		)
Debt, Net of Current Maturities and Unamortized Issuance Costs	$	3,808		$	4,161

________________

(a) Total debt related to TLLP, which is non-recourse to Tesoro, except for TLGP, was $2.6 billion at both June 30, 2015 and December 31, 2014.

(b) Includes unamortized premium associated with TLLP’s 5.875% Senior Notes due 2020 of $4 million and $5 million as of June 30, 2015 and December 31, 2014, respectively.

(c) The Company adopted ASU 2015-03 in the first quarter of 2015 and applied the changes retrospectively to the prior period presented. Adoption of this standard has resulted in the reclassification of $93 million of unamortized debt issuance costs from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of $84 million are recorded as a reduction to debt on the balance sheet at June 30, 2015. See Note 1 for further discussion.

Revolving Credit Facilities

We had available capacity under our credit facilities as follows at June 30, 2015 (in millions):

	Total Capacity		Amount Borrowed as of June 30, 2015		Outstanding Letters of Credit		Available Capacity		Expiration
Tesoro Corporation Revolving Credit Facility (a)	$	3,000	$	—	$	136	$	2,864	November 18, 2019
TLLP Revolving Credit Facility	900		299		—		601		December 2, 2019
Letter of Credit Facilities	2,035		—		80		1,955
Total credit facilities	$	5,935	$	299	$	216	$	5,420

________________

(a) Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity of $3.0 billion.

As of June 30, 2015, our credit facilities were subject to the following expenses and fees:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Tesoro Corporation Revolving Credit Facility    ($3.0 billion) (a)	0.19%	1.50%	3.25%	0.50%	0.375%
TLLP Revolving Credit Facility ($900 million) (b)	0.19%	2.50%	3.25%	1.50%	0.50%

________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our senior secured credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

(b) TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the TLLP Revolving Credit Facility incur fees at the Eurodollar margin rate.

13

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Revolving Credit Facilities

Tesoro Corporation Revolving Credit Facility. Our Revolving Credit Facility provides for borrowings (including letters of credit) up to the lesser of the amount of a periodically adjusted borrowing base, which consists of Tesoro’s eligible cash and cash equivalents, receivables and petroleum inventories, net of the standard reserve as defined, or the Revolving Credit Facility’s total capacity of $3.0 billion. We had unused credit availability of approximately 95% of the eligible borrowing base at June 30, 2015. Our Revolving Credit Facility is guaranteed by substantially all of Tesoro’s active domestic subsidiaries, excluding TLGP, TLLP and its subsidiaries, and certain foreign subsidiaries, and is secured by substantially all of Tesoro’s active domestic subsidiaries’ crude oil and refined product inventories, cash and receivables.

Our Revolving Credit Facility, as amended, senior notes and Term Loan Facility each limit our ability, under certain circumstances, to make certain restricted payments (as defined in our debt agreements), which include dividends, purchases of our stock or voluntary prepayments of subordinate debt. The aggregate amount of restricted payments cannot exceed an amount defined in each of the debt agreements.

The Revolving Credit Facility allows us to obtain letters of credit under separate letter of credit agreements for foreign crude oil purchases. Our uncommitted letter of credit agreements had $80 million outstanding as of June 30, 2015. Letters of credit outstanding under these agreements incur fees ranging from 0.40% to 1.00% and are secured by the crude oil inventories for which they are issued. Capacity under these letter of credit agreements is available on an uncommitted basis and can be terminated by either party at any time.

TLLP Revolving Credit Facility. The TLLP Revolving Credit Facility provided for total loan availability of $900 million as of June 30, 2015, and TLLP may request that the loan availability be increased up to an aggregate of $1.5 billion, subject to receiving increased commitments from the lenders. The TLLP Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of TLLP’s subsidiaries, with the exception of Rendezvous Gas Services L.L.C., and secured by substantially all of TLLP’s assets. Borrowings are available under the TLLP Revolving Credit Facility up to the total loan availability of the facility. There was $299 million in borrowings outstanding under the TLLP Revolving Credit Facility, which incurred interest at a weighted average interest rate of 2.75% at June 30, 2015. TLLP had unused credit availability of approximately 67% of the borrowing capacity at June 30, 2015.

Tesoro Debt

Term Loan Facility. We entered into the Term Loan Facility in January 2013, which allowed us to borrow up to an aggregate of $500 million, which we used to fund a portion of the acquisition of BP’s integrated Southern California refining, marketing and logistics business (the “Los Angeles Acquisition”). The Term Loan Facility matures May 30, 2016. The obligations under the Term Loan Facility are secured by all equity interests of Tesoro Refining & Marketing Company LLC and Tesoro Alaska Company LLC, the Tesoro and USA Gasoline trademarks and those trademarks containing the name “ARCO” acquired in the Los Angeles Acquisition, and junior liens on certain assets. The Term Loan Facility may be repaid at any time but amounts may not be re-borrowed. There were no payments on the borrowings under the Term Loan Facility for the three months ended June 30, 2015. The borrowings under our Term Loan Facility incurred interest at a rate of 2.44% as of June 30, 2015 based on the following expense and fee schedule:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Term Loan Facility ($398 million) (a)	0.19%	2.25%	3.25%	1.25%	—%

____________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing.

The Term Loan Facility contains affirmative covenants, representations and warranties and events of default substantially similar to those set forth in the Revolving Credit Facility and contains negative covenants substantially similar to those set forth in most of our current indentures.

14

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 9 – BENEFIT PLANS

Tesoro sponsors four defined benefit pension plans, including one funded qualified employee retirement plan and three unfunded nonqualified executive plans. Although our funded employee retirement plan fully meets all funding requirements under applicable laws and regulations, we voluntarily contributed $30 million during the six months ended June 30, 2015 to improve the funded status of the plan. Tesoro also provides other postretirement health care benefits to retirees who met certain service requirements and were participating in our group health insurance program at retirement.

The components of pension and other postretirement benefit expense (income) for the three and six months ended June 30, 2015 and 2014 were (in millions):

	Pension Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Service cost	$	11		$	13		$	23		$	26
Interest cost	7			8			15			17
Expected return on plan assets	(6		)	(7		)	(13		)	(15		)
Amortization of prior service cost	—			1			—			1
Recognized net actuarial loss	6			3			12			7
Net Periodic Benefit Expense	$	18		$	18		$	37		$	36
	Other Postretirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Service cost	$	1		$	1		$	2		$	2
Interest cost	—			—			1			1
Amortization of prior service credit	(8		)	(8		)	(17		)	(17		)
Recognized net actuarial loss	1			2			2			3
Net Periodic Benefit Income	$	(6	)	$	(5	)	$	(12	)	$	(11	)

NOTE 10 - COMMITMENTS AND CONTINGENCIES

Environmental Liabilities

We are incurring and expect to continue to incur expenses for environmental remediation liabilities at a number of currently and previously owned or operated refining, pipeline, terminal and retail station properties. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Additionally, we have recognized environmental remediation liabilities assumed in past acquisitions from the prior owners that include amounts estimated for site cleanup and monitoring activities arising from operations at refineries, certain terminals and pipelines, and retail stations prior to the dates of our acquisitions. Our environmental accruals are based on estimates including engineering assessments, and it is possible that our projections will change and that additional costs will be recorded as more information becomes available.

15

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Our accruals for environmental expenditures totaled$244 million and $274 million at June 30, 2015 and December 31, 2014, respectively, including $22 millionand $32 million for TLLP, respectively. These accruals include $201 million and $216 million at June 30, 2015 and December 31, 2014, respectively, related to amounts estimated for site cleanup activities arising from operations at our Martinez refinery and operations of assets acquired in the Los Angeles Acquisition prior to their respective acquisition dates. We cannot reasonably determine the full extent of remedial activities that may be required at the Martinez refinery and for assets acquired in the Los Angeles Acquisition, and it is possible that we will identify additional investigation and remediation costs for site cleanup activities as more information becomes available. The environmental remediation liabilities assumed in the Los Angeles Acquisition include amounts estimated for site cleanup activities and monitoring activities arising from operations at the Carson refinery, certain terminals and pipelines, and retail stations prior to our acquisition on June 1, 2013. These estimates for environmental liabilities are based on third-party assessments and available information. Our estimates for site cleanup activities reflect amounts for which we are responsible under applicable cost-sharing arrangements.

On July 10, 2015, a federal court issued an order denying coverage pursuant to insurance policies for environmental remediation liabilities at our Martinez refinery and those liabilities are included in our accruals above. The insurer had filed a declaratory relief action challenging coverage of the primary policy assigned to us when we acquired the refinery. The policies provide for coverage up to $190 million for expenditures in excess of $50 million in self-insurance. We have not recognized possible insurance recoveries under the policies and are evaluating appealing the order.

Other Contingencies

Washington Refinery Fire. The naphtha hydrotreater unit at our Washington refinery was involved in a fire in April 2010, which fatally injured seven employees and rendered the unit inoperable. The Washington State Department of Labor & Industries (“L&I”) initiated an investigation of the incident. L&I completed its investigation in October 2010, issued a citation and assessed a $2.4 million fine, which we appealed. L&I reassumed jurisdiction of the citation and affirmed the allegations in December 2010. We disagree with L&I’s characterizations of operations at our Washington refinery and believe, based on available evidence and scientific reviews, that many of the agency’s conclusions are mistaken. We filed an appeal of the citation in January 2011. In separate September 2013, November 2013 and February 2015 orders, the Board of Industrial Insurance Appeals (“BIIA”) Judge granted partial summary judgment in our favor rejecting 33 of the original 44 allegations in the citation as lacking legal or evidentiary support. A hearing on the remaining 11 allegations started on July 21, 2015, and we expect the Judge to issue a recommended decision for the BIIA’s review in late 2015 or early 2016. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution.

On November 20, 2013, we received a notice of violation (“NOV”) from the EPA alleging 46 violations of the Clean Air Act Risk Management Plan requirements at our Washington refinery. The EPA conducted an investigation of the refinery in 2011, following the April 2010 fire in the naphtha hydrotreater unit. We have provided a response to the NOV and additional information to the EPA. While we cannot currently estimate the amount or timing of the resolution of this matter, we believe the outcome will not have a material impact on our liquidity, financial position, or results of operations.

In January 2015, we received notice and demand for indemnity from the previous owner of our Washington refinery for damages incurred in the civil litigation brought by the families of those fatally wounded in the April 2010 refinery fire. We settled our involvement in civil litigation in 2012. Arbitration proceedings were initiated in March 2015 after an unsuccessful mediation and we intend to vigorously defend ourselves against this claim.

Environmental. The EPA has alleged that we have violated certain Clean Air Act regulations at our Alaska, Washington, Martinez, North Dakota and Utah refineries. We also retained the responsibility for resolving similar allegations relating to our former Hawaii refinery, which we sold in September 2013. We previously received a NOV in March 2011 from the EPA alleging violations of Title V of the Clean Air Act at our Alaska refinery, which arose from a 2007 state of Alaska inspection and inspections by the EPA in 2008 and 2010. We also previously received NOVs in 2005 and 2008 alleging violations of the Clean Air Act at our Washington refinery. We are continuing discussions of all EPA claims with the EPA and the U.S. Department of Justice. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution. The ultimate resolution of these matters could have a material impact on us, as we may be required to incur material capital expenditures at our operating refineries. However, we do not believe that the final outcome of this matter will have a material impact on our liquidity, results of operations or financial position.

16

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Other Matters

In the ordinary course of business, we become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. Large, and sometimes unspecified, damages or penalties may be sought from us in some matters. We have not established accruals for these matters unless a loss is probable, and the amount of loss is currently estimable.

Legal. We are a defendant, along with other manufacturing, supply and marketing defendants, in a lawsuit brought by the Orange County Water District, alleging methyl tertiary butyl ether (“MTBE”) contamination in groundwater. This matter, originally filed in 2004, is proceeding in the United States District Court of the Southern District of New York. The defendants are being sued for having manufactured MTBE and having manufactured, supplied and distributed gasoline containing MTBE. The plaintiff alleges, in part, that the defendants are liable for manufacturing or distributing a defective product. The suit generally seeks individual, unquantified compensatory and punitive damages and attorney’s fees. We intend to vigorously assert our defenses against this claim. While we cannot currently estimate the final amount or timing of the resolution of this matter, we have established an accrual and believe that the outcome will not have a material impact on our liquidity, financial position, or results of operations.

Environmental. Certain non-governmental organizations filed a Request for Agency Action (the “Request”) with the Utah Department of Environmental Quality (“UDEQ”) concerning our Utah refinery in October 2012. The Request challenges the UDEQ’s permitting of our refinery conversion project alleging that the permits do not conform to the requirements of the Clean Air Act. As the permittee, we are the real party in interest and are defending the permits with UDEQ. In orders issued on July 10 and September 9, 2014, the UDEQ Administrative Law Judge (“ALJ”) recommended the Executive Director of UDEQ deny Petitioners’ request for a stay of the project and dismiss their challenge to the permit. The Executive Director’s final decision approving the ALJ’s recommended order is currently under appeal. While we cannot estimate the timing or estimated amount, if any, associated with the outcome of this matter, we do not believe it will have a material adverse impact on our liquidity, financial position, or results of operations.

We have investigated conditions at certain active wastewater treatment units at our Martinez refinery pursuant to an order received in 2004 from the San Francisco Bay Regional Water Quality Control Board that named us as well as two previous owners of the Martinez refinery. We cannot currently estimate the amount of the ultimate resolution of the order, but we believe it will not have a material adverse impact on our liquidity, financial position, or results of operations.

Tax. We are subject to extensive federal, state and foreign tax laws and regulations. Newly enacted tax laws and regulations, and changes in existing tax laws and regulations, could result in increased expenditures in the future. We are also subject to audits by federal, state and foreign taxing authorities in the normal course of business. It is possible that tax audits could result in claims against us in excess of recorded liabilities. However, we believe that resolution of any such claim(s) would not have a material impact on our liquidity, financial position, or results of operations.

Unrecognized tax benefits increased by approximately $150 million in the second quarter of 2015 for tax positions taken on amended returns filed for 2006-2010. The positions taken exclude certain tax credits, for blending biofuels into refined products, from taxable income. These tax credits were received from the federal government during the years being amended. However, due to the complex and uncertain nature of the issue, we are unable to conclude that it is more likely than not that we will sustain the claims. Therefore, we have neither recognized a tax benefit, nor recorded a receivable for this item.

It is reasonably possible that unrecognized tax benefits may decrease by as much as $8 million in the next twelve months, related primarily to state apportionment matters. However, since the tax was fully paid in prior years, the unrecognized tax benefit would be eliminated without impacting expense.

17

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 11 - STOCKHOLDERS’ EQUITY

Changes to equity during the six months ended June 30, 2015 are presented below (in millions):

	Tesoro Corporation Stockholders’ Equity			Noncontrolling  Interest			Total Equity
Balance at December 31, 2014 (a)	$	4,454		$	2,522		$	6,976
Net earnings	727			81			808
Purchases of common stock	(269		)	—			(269		)
Dividend payments	(107		)	—			(107		)
Net effect of amounts related to equity-based compensation (b)	22			2			24
Net proceeds from issuance of Tesoro Logistics LP common units	—			45			45
Distributions to noncontrolling interest	—			(90		)	(90		)
Transfers to (from) Tesoro paid-in capital related to:
TLLP’s sale of common units	14			(14		)	—
Other	(4		)	—			(4		)
Balance at June 30, 2015 (a)	$	4,837		$	2,546		$	7,383

________________

(a) We have 5.0 million shares of preferred stock authorized with no par value per share. No shares of preferred stock were outstanding as of June 30, 2015 and December 31, 2014.

(b) We issued approximately 0.3 million shares during each of the six months ended June 30, 2015 and 2014 for proceeds of $10 million and $6 million, respectively, primarily for stock option exercises under our equity-based compensation plans. See Note 12 for more information on stock-based compensation.

Share Repurchases

We are authorized by our Board of Directors (the “Board”) to purchase shares of our common stock in open market transactions at our discretion. The Board’s authorization has no time limit and may be suspended or discontinued at any time. Purchases of our common stock can also be made to offset the dilutive effect of stock-based compensation awards and to meet our obligations under employee benefit and compensation plans, including the exercise of stock options and vesting of restricted stock and to fulfill other stock compensation requirements. We purchased approximately 3.1 million shares and 3.7 million shares of our common stock for approximately $269 million and $200 million during the six months ended June 30, 2015 and 2014, respectively.

Cash Dividends

We paid cash dividends totaling $53 million and $107 million for the three and six months ended June 30, 2015, respectively, based on a $0.425 per share quarterly cash dividend on common stock. We paid cash dividends totaling $32 million and $65 million for the three and six months ended June 30, 2014, respectively, based on a $0.250 per share quarterly cash dividend on common stock. On August 3, 2015, our Board declared a cash dividend of $0.50 per share payable on September 14, 2015 to shareholders of record on August 28, 2015.

18

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 12 - STOCK-BASED COMPENSATION

Stock-based compensation expense, including discontinued operations, was as follows (in millions):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015			2014		2015		2014
Stock appreciation rights (a)	$	(5	)	$	13	$	10	$	(5	)
Performance share awards (b)	2			7		6		4
Market stock units (c)	7			5		12		8
Other stock-based awards (d)	3			1		7		1
Total Stock-Based Compensation Expense	$	7		$	26	$	35	$	8

____________________

(a) We paid cash of $22 million and $14 million to settle 0.4 million and 0.5 million SARs that were exercised during the six months ended June 30, 2015 and 2014, respectively. We had $48 million and $60 million recorded in accrued liabilities associated with our SARs awards at June 30, 2015 and December 31, 2014, respectively.

(b) We granted 0.1 million market condition performance share awards at a weighted average grant date fair value of $117.96 per share under the amended and restated 2011 Long-Term Incentive Plan (“2011 Plan”) during the six months ended June 30, 2015.

(c) We granted 0.4 million market stock units at a weighted average grant date fair value of $114.57 per unit under the 2011 Plan during the six months ended June 30, 2015.

(d) We have aggregated expenses for certain award types as they are not considered significant.

The income tax effect recognized in the income statement for stock-based compensation was a benefit of $3 million and $9 million for the three months ended June 30, 2015 and 2014, and a benefit of $14 million and $2 million for the six months ended June 30, 2015 and 2014, respectively. The reduction in current taxes payable recognized from tax deductions resulting from exercises and vestings under all of our stock-based compensation arrangements totaled $9 million and $30 million for the three months ended June 30, 2015 and 2014, respectively, and $63 million and $33 million for the six months ended June 30, 2015 and 2014, respectively.

NOTE 13 - OPERATING SEGMENTS

We changed our operating segment presentation in the second quarter of 2015 to reflect the changing nature of our underlying assets, operations and how our chief operating decision maker (“CODM”) manages our business. In previous periods, a portion of our marketing business related to sales in unbranded or wholesale channels was presented within our refining operating segment. Our branded operations represent the assets and operations that were previously shown as the retail segment. Upon considering the changes in our business, including the transition from company-owned retail operations to multi-site operator model, we assessed how our CODM evaluates the business, assesses performance and allocates resources. From this analysis, we believe presentation of a marketing segment inclusive of both unbranded and branded marketing operations is appropriate. As of June 30, 2015, we revised our operating segments to include refining, TLLP and a realigned marketing segment. Comparable prior period information has been recast to reflect our revised segment presentation. No other changes were deemed necessary to our refining and TLLP segments.

Our refining segment owns and operates six petroleum refineries located in California, Washington, Alaska, North Dakota and Utah that manufacture gasoline and gasoline blendstocks, jet fuel, diesel fuel, residual fuel oil and other refined products. We sell these refined products, together with refined products purchased from third parties, to our marketing segment through terminal facilities and other locations and opportunistically export refined products to foreign markets. TLLP’s assets and operations include certain crude oil gathering assets, natural gas gathering and processing assets and crude oil and refined products terminalling and transportation assets acquired from Tesoro and other third parties. Revenues from the TLLP segment are generated by charging fees for gathering crude oil and natural gas, for processing natural gas, and for terminalling, transporting and storing crude oil, and refined products. During 2014, we converted our company-operated retail locations to multi-site operators (“MSOs”) and retained the transportation fuel sales. Our marketing segment sells gasoline and diesel fuel through branded MSOs and jobber/dealers in 16 states as well as unbranded or wholesale channels through terminal facilities and other locations. Since we do not have significant operations in foreign countries, revenue generated and long-lived assets located in foreign countries are not material to our operations.

We evaluate the performance of our segments based primarily on segment operating income. Segment operating income includes those revenues and expenses that are directly attributable to management of the respective segment. TLLP and marketing revenues include intersegment transactions with our refining segment. Income taxes, other income, net, interest and financing costs, net, corporate depreciation and corporate general and administrative expenses are excluded from segment operating income.

19

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Segment information related to continuing operations is as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In millions)
Revenues
Refining:
Refined products	$	7,499		$	10,499		$	13,327		19,990
Crude oil resales and other	309			354			608			626
TLLP:
Gathering	89			27			166			52
Processing	67			—			134			—
Terminalling and transportation	119			106			238			208
Marketing:
Fuel (a)	5,051			6,649			8,999			12,313
Other non-fuel (b)	16			69			32			130
Intersegment sales	(4,918		)	(6,600		)	(8,809		)	(12,282		)
Total Revenues	$	8,232		$	11,104		$	14,695		$	21,037
Segment Operating Income
Refining (c)	$	753		$	358		$	936		$	538
TLLP (d)	109			48			217			108
Marketing (c)	212			88			345			112
Total Segment Operating Income	1,074			494			1,498			758
Corporate and unallocated costs (e)	(65		)	(84		)	(149		)	(110		)
Operating Income	1,009			410			1,349			648
Interest and financing costs, net (f)	(54		)	(41		)	(109		)	(118		)
Other income, net	3			3			2			2
Earnings Before Income Taxes	$	958		$	372		$	1,242		$	532
Depreciation and Amortization Expense
Refining	$	122		$	104		$	241		$	205
TLLP	44			17			88			33
Marketing	11			10			23			20
Corporate	5			4			9			7
Total Depreciation and Amortization Expense	$	182		$	135		$	361		$	265
Capital Expenditures
Refining	$	148		$	94		$	332		$	162
TLLP	77			48			143			74
Marketing	8			13			12			18
Corporate	4			12			10			16
Total Capital Expenditures	$	237		$	167		$	497		$	270

________________

(a) Federal and state motor fuel taxes on sales by our marketing segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $146 million and $152 million for the three months ended June 30, 2015 and 2014, respectively, and $286 million and $293 million for the six months ended June 30, 2015 and 2014, respectively.

(b) Includes merchandise revenue for the three and six months ended June 30, 2014.

(c) Our refining segment uses RINs to satisfy its obligations under the Renewable Fuels Standard, in addition to physically blending required biofuels. Effective April 1, 2013, we changed our intersegment pricing methodology and no longer reduced the amount marketing pays for the biofuels by the market value of the RINs due to significant volatility in the value of RINs. At the end of 2014, given the price of RINs has become more transparent in the price of biofuels, we determined our intersegment pricing methodology should include the market value of RINs as a reduction to the price our marketing segment pays to our refining segment. We made this change effective January 1, 2015. We have not adjusted financial information presented for our refining and marketing segments for the three or six month periods ended June 30, 2014. Had we made this change effective January 1, 2014, operating income in our refining segment would have been reduced by $31 million and $59 million with a corresponding increase to operating income in our marketing segment for the three and six months ended June 30, 2014, respectively.

20

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(d) We present TLLP’s segment operating income net of general and administrative expenses totaling $15 million and $4 million representing TLLP’s corporate costs for the three months ended June 30, 2015 and 2014, respectively, and $27 million and $8 million for the six months ended June 30, 2015 and 2014, respectively, that are not allocated by TLLP to its operating segments.

(e) Includes stock-based compensation expense of $7 million and $26 million for the three months ended June 30, 2015 and 2014, respectively, and $35 million and $8 million for the six months ended June 30, 2015 and 2014, respectively. The significant impact to stock-based compensation expense during the three and six months ended June 30, 2015 compared to the prior period is primarily a result of changes in Tesoro’s stock price.

(f) Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 5.50% Senior Notes due 2019 during the six months ended June 30, 2014.

The following table details our identifiable assets related to continuing operations:

	June 30, 2015		December 31, 2014
Identifiable Assets Related to Continuing Operations:	(In millions)
Refining	$	9,531	$	9,467
TLLP	4,809		4,765
Marketing	1,226		1,048
Corporate	1,125		1,211
Total Assets	$	16,691	$	16,491

NOTE 14 - CONDENSED CONSOLIDATING FINANCIAL INFORMATION

Separate condensed consolidating financial information of Tesoro Corporation (the “Parent”), subsidiary guarantors and non-guarantors is presented below. At June 30, 2015, Tesoro and certain subsidiary guarantors have fully and unconditionally guaranteed our 4.250% Senior Notes due 2017, 5.375% Senior Notes due 2022, and 5.125% Senior Notes due 2024. TLLP, in which we had a 36% ownership interest as of June 30, 2015, and other subsidiaries have not guaranteed these obligations. As a result of these guarantee arrangements, we are required to present the following condensed consolidating financial information, which should be read in conjunction with the accompanying condensed consolidated financial statements and notes thereto. This information is provided as an alternative to providing separate financial statements for guarantor subsidiaries. Separate financial statements of Tesoro’s subsidiary guarantors are not included because the guarantees are full and unconditional and these subsidiary guarantors are 100% owned and are jointly and severally liable for Tesoro’s outstanding senior notes. The information is presented using the equity method of accounting for investments in subsidiaries. Certain intercompany and intracompany transactions between subsidiaries are presented gross and eliminated in the eliminations column. Additionally, the results of operations of the Hawaii Business have been reported as discontinued operations in these condensed consolidating statements of operations and comprehensive income for the three and six months ended June 30, 2015 and 2014.

21

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Statement of Operations

for the Three Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	9,000		$	750		$	(1,518	)	$	8,232
Costs and Expenses:
Cost of sales	—			7,336			465			(1,403		)	6,398
Operating, selling, general and administrative expenses	2			617			135			(115		)	639
Depreciation and amortization expense	—			136			46			—			182
Loss on asset disposals and impairments	—			4			—			—			4
Operating Income (Loss)	(2		)	907			104			—			1,009
Equity in earnings of subsidiaries	590			48			—			(638		)	—
Interest and financing costs, net	(10		)	(17		)	(27		)	—			(54		)
Other income, net	1			1			1			—			3
Earnings Before Income Taxes	579			939			78			(638		)	958
Income tax expense (benefit) (a)	(3		)	325			12			—			334
Net Earnings from Continuing Operations	582			614			66			(638		)	624
Loss from discontinued operations, net of tax	—			(4		)	—			—			(4		)
Net Earnings	582			610			66			(638		)	620
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			38			—			38
Net Earnings Attributable to Tesoro Corporation	$	582		$	610		$	28		$	(638	)	$	582
Comprehensive Income
Total comprehensive income	$	582		$	610		$	66		$	(638	)	$	620
Less: Noncontrolling interest in comprehensive income	—			—			38			—			38
Comprehensive Income Attributable to Tesoro    Corporation	$	582		$	610		$	28		$	(638	)	$	582

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

22

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Statement of Operations

for the Three Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	12,729		$	1,829		$	(3,454	)	$	11,104
Costs and Expenses:
Cost of sales	—			11,572			1,688			(3,393		)	9,867
Operating, selling, general and administrative expenses	3			677			71			(61		)	690
Depreciation and amortization expense	—			117			18			—			135
(Gain) loss on asset disposals and impairments	—			3			(1		)	—			2
Operating Income (Loss)	(3		)	360			53			—			410
Equity in earnings of subsidiaries	231			13			—			(244		)	—
Interest and financing costs, net	(9		)	(24		)	(17		)	9			(41		)
Other income, net	2			1			9			(9		)	3
Earnings Before Income Taxes	221			350			45			(244		)	372
Income tax expense (benefit) (a)	(3		)	127			8			—			132
Net Earnings	224			223			37			(244		)	240
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			16			—			16
Net Earnings Attributable to Tesoro Corporation	$	224		$	223		$	21		$	(244	)	$	224
Comprehensive Income
Total comprehensive income	$	224		$	223		$	37		$	(244	)	$	240
Less: Noncontrolling interest in comprehensive income	—			—			16			—			16
Comprehensive Income Attributable to Tesoro    Corporation	$	224		$	223		$	21		$	(244	)	$	224

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

23

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Statement of Operations

for the Six Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	15,999		$	1,664		$	(2,968	)	$	14,695
Costs and Expenses:
Cost of sales	—			13,329			1,126			(2,717		)	11,738
Operating, selling, general and administrative expenses	6			1,226			258			(251		)	1,239
Depreciation and amortization expense	—			270			91			—			361
Loss on asset disposals and impairments	—			8			—			—			8
Operating Income (Loss)	(6		)	1,166			189			—			1,349
Equity in earnings of subsidiaries	747			64			—			(811		)	—
Interest and financing costs, net	(21		)	(35		)	(53		)	—			(109		)
Other income (expense), net	1			(3		)	4			—			2
Earnings Before Income Taxes	721			1,192			140			(811		)	1,242
Income tax expense (benefit) (a)	(6		)	420			16			—			430
Net Earnings from Continuing Operations	727			772			124			(811		)	812
Loss from discontinued operations, net of tax	—			(4		)	—			—			(4		)
Net Earnings	727			768			124			(811		)	808
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			81			—			81
Net Earnings Attributable to Tesoro Corporation	$	727		$	768		$	43		$	(811	)	$	727
Comprehensive Income
Total comprehensive income	$	727		$	768		$	124		$	(811	)	$	808
Less: Noncontrolling interest in comprehensive income	—			—			81			—			81
Comprehensive Income Attributable to Tesoro    Corporation	$	727		$	768		$	43		$	(811	)	$	727

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

24

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Statement of Operations

for the Six Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	24,293		$	3,439		$	(6,695	)	$	21,037
Costs and Expenses:
Cost of sales	—			22,236			3,164			(6,585		)	18,815
Operating, selling, general and administrative expenses	4			1,289			129			(110		)	1,312
Depreciation and amortization expense	—			230			35			—			265
(Gain) loss on asset disposals and impairments	—			2			(5		)	—			(3		)
Operating Income (Loss)	(4		)	536			116			—			648
Equity in earnings of subsidiaries	317			27			—			(344		)	—
Interest and financing costs, net	(17		)	(83		)	(35		)	17			(118		)
Other income, net	2			—			17			(17		)	2
Earnings Before Income Taxes	298			480			98			(344		)	532
Income tax expense (benefit) (a)	(4		)	178			14			—			188
Net Earnings from Continuing Operations	302			302			84			(344		)	344
Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
Net Earnings	302			301			84			(344		)	343
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			41			—			41
Net Earnings Attributable to Tesoro Corporation	$	302		$	301		$	43		$	(344	)	$	302
Comprehensive Income
Total comprehensive income	$	302		$	301		$	84		$	(344	)	$	343
Less: Noncontrolling interest in comprehensive income	—			—			41			—			41
Comprehensive Income Attributable to Tesoro    Corporation	$	302		$	301		$	43		$	(344	)	$	302

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

25

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Balance Sheet as of June 30, 2015

(In millions)

	Parent		Guarantor Subsidiaries		Non- Guarantors		Eliminations			Consolidated
ASSETS
Current Assets:
Cash and cash equivalents	$	—	$	942	$	36	$	—		$	978
Receivables, net of allowance for doubtful accounts	—		1,059		246		—			1,305
Short-term receivables from affiliates	—		47		—		(47		)	—
Inventories	—		2,218		226		—			2,444
Prepayments and other current assets	42		109		21		(1		)	171
Total Current Assets	42		4,375		529		(48		)	4,898
Net Property, Plant and Equipment	—		5,850		3,444		—			9,294
Investment in Subsidiaries	7,322		418		—		(7,740		)	—
Long-Term Receivables from Affiliates	2,348		—		—		(2,348		)	—
Long-Term Intercompany Note Receivable	—		—		1,376		(1,376		)	—
Other Noncurrent Assets:
Acquired intangibles, net	—		241		959		—			1,200
Other, net	6		1,044		249		—			1,299
Total Other Noncurrent Assets, Net	6		1,285		1,208		—			2,499
Total Assets	$	9,718	$	11,928	$	6,557	$	(11,512	)	$	16,691
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	—	$	1,640	$	315	$	—		$	1,955
Current maturities of debt, net of unamortized issuance costs	397		6		—		—			403
Short-term payables to affiliates	—		—		47		(47		)	—
Other current liabilities	311		612		124		(1		)	1,046
Total Current Liabilities	708		2,258		486		(48		)	3,404
Long-Term Payables to Affiliates	—		2,302		46		(2,348		)	—
Deferred Income Taxes	1,179		—		—		—			1,179
Other Noncurrent Liabilities	432		428		57		—			917
Debt, net of unamortized issuance costs	1,186		36		2,586		—			3,808
Long-Term Intercompany Note Payable	1,376		—		—		(1,376		)	—
Equity-Tesoro Corporation	4,837		6,904		836		(7,740		)	4,837
Equity-Noncontrolling Interest	—		—		2,546		—			2,546
Total Liabilities and Equity	$	9,718	$	11,928	$	6,557	$	(11,512	)	$	16,691

26

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Balance Sheet as of December 31, 2014

(In millions)

	Parent		Guarantor Subsidiaries		Non- Guarantors		Eliminations			Consolidated
ASSETS
Current Assets:
Cash and cash equivalents	$	—	$	943	$	57	$	—		$	1,000
Receivables, net of allowance for doubtful accounts	6		912		517		—			1,435
Short-term receivables from affiliates	—		84		—		(84		)	—
Inventories	—		2,088		351		—			2,439
Prepayments and other current assets	71		115		16		(2		)	200
Total Current Assets	77		4,142		941		(86		)	5,074
Net Property, Plant and Equipment	—		5,666		3,379		—			9,045
Investment in Subsidiaries	6,592		362		—		(6,954		)	—
Long-Term Receivables from Affiliates	2,427		—		—		(2,427		)	—
Long-Term Intercompany Note Receivable	—		—		1,376		(1,376		)	—
Other Noncurrent Assets:
Acquired intangibles, net	—		249		973		—			1,222
Other, net	6		893		251		—			1,150
Total Other Noncurrent Assets, Net	6		1,142		1,224		—			2,372
Total Assets	$	9,102	$	11,312	$	6,920	$	(10,843	)	$	16,491
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	1	$	1,779	$	690	$	—		$	2,470
Current maturities of debt, net of unamortized issuance costs	—		6		—		—			6
Short-term payables to affiliates	—		—		84		(84		)	—
Other current liabilities	148		711		133		(2		)	990
Total Current Liabilities	149		2,496		907		(86		)	3,466
Long-Term Payables to Affiliates	—		2,399		28		(2,427		)	—
Deferred Income Taxes	1,098		—		—		—			1,098
Other Noncurrent Liabilities	447		296		47		—			790
Debt, net of unamortized issuance costs	1,578		39		2,544		—			4,161
Long-Term Intercompany Note Payable	1,376		—		—		(1,376		)	—
Equity-Tesoro Corporation	4,454		6,082		872		(6,954		)	4,454
Equity-Noncontrolling Interest	—		—		2,522		—			2,522
Total Liabilities and Equity	$	9,102	$	11,312	$	6,920	$	(10,843	)	$	16,491

27

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Statement of Cash Flows for the Six Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities	$	(26	)	$	663		$	270		$	—		$	907
Cash Flows From (Used In) Investing Activities
Capital expenditures	—			(383		)	(157		)	—			(540		)
Acquisitions	—			—			(6		)	—			(6		)
Intercompany notes, net	415			—			—			(415		)	—
Other investing activities	—			(2		)	—			—			(2		)
Net cash from (used in) investing activities	415			(385		)	(163		)	(415		)	(548		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	—			—			262			—			262
Repayments on revolving credit agreements	—			—			(223		)	—			(223		)
Repayments of debt	—			(3		)	—			—			(3		)
Dividend payments	(107		)	—			—			—			(107		)
Net proceeds from issuance of Tesoro Logistics LP    common units	—			—			45			—			45
Distributions to noncontrolling interest	—			—			(90		)	—			(90		)
Purchases of common stock	(269		)	—			—			—			(269		)
Net intercompany repayments	—			(325		)	(90		)	415			—
Distributions to TLLP unitholders and general partner	21			12			(33		)	—			—
Other financing activities	(34		)	37			1			—			4
Net cash used in financing activities	(389		)	(279		)	(128		)	415			(381		)
Decrease in Cash And Cash Equivalents	—			(1		)	(21		)	—			(22		)
Cash and Cash Equivalents, Beginning of Period	—			943			57			—			1,000
Cash and Cash Equivalents, End of Period	$	—		$	942		$	36		$	—		$	978

28

TESORO CORPORATION

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Condensed Consolidating Statement of Cash Flows for the Six Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities	$	(20	)	$	248		$	148		$	—		$	376
Cash Flows From (Used In) Investing Activities
Capital expenditures	—			(194		)	(66		)	—			(260		)
Acquisitions	—			(17		)	—			—			(17		)
Intercompany notes, net	316			—			—			(316		)	—
Other investing activities	—			1			9			—			10
Net cash from (used in) investing activities	316			(210		)	(57		)	(316		)	(267		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	—			—			228			—			228
Proceeds from debt offering	300			—			—			—			300
Repayments of debt	(300		)	(2		)	—			—			(302		)
Dividend payments	(65		)	—			—			—			(65		)
Distributions to noncontrolling interest	—			—			(42		)	—			(42		)
Purchases of common stock	(200		)	—			—			—			(200		)
Net intercompany repayments	—			(283		)	(33		)	316			—
Distributions to TLLP unitholders and general partner	8			10			(18		)	—			—
Other financing activities	(39		)	16			(4		)	—			(27		)
Net cash from (used in) financing activities	(296		)	(259		)	131			316			(108		)
Increase (Decrease) in Cash And Cash Equivalents	—			(221		)	222			—			1
Cash and Cash Equivalents, Beginning of Period	—			1,161			77			—			1,238
Cash and Cash Equivalents, End of Period	$	—		$	940		$	299		$	—		$	1,239

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Those statements in this section that are not historical in nature should be deemed forward-looking statements that are inherently uncertain. See “Important Information Regarding Forward-Looking Statements” on page 56 for a discussion of the factors that could cause actual results to differ materially from those projected in these statements. This section should be read in conjunction with Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the year ended December 31, 2014.

BUSINESS STRATEGY AND OVERVIEW

Strategy and Goals

Our vision is to create a safer and cleaner future as efficient providers of reliable transportation fuel solutions. To achieve these goals we are pursuing the following strategic priorities:

• improve operational efficiency and effectiveness by focusing on safety and reliability, system improvements and cost leadership;

• drive commercial excellence by strengthening our supply, trading and optimization activities to provide additional value to the business;

• maintain our financial position by exercising capital discipline and focusing on a balanced use of free cash flow;

• capture value-driven growth through a focus on our logistics assets, growing our marketing business and other strategic opportunities accretive to shareholder value; and

• maintain a high performing culture by building leadership at all levels of the organization with employees from diverse backgrounds and experiences who are accountable for delivering on our commitments.

Our goals were focused on these strategic priorities and we accomplished the following in 2015:

	Operational Efficiency & Effectiveness	Commercial Excellence	Financial Discipline	Value Driven Growth	High Performing Culture
Operated our Los Angeles and Anacortes refineries safely during a work stoppage in February and March 2015.	•	•			•
Completed a safe restart of the Martinez refinery in late March 2015.	•				•
Completed the second phase of the Salt Lake City refinery expansion and Waxy Crude Oil Project.		•		•	•
TLLP completed the merger with QEPM which continues the integration of the Rockies Natural Gas Business assets within the midstream and downstream value chain.				•
Purchased 3.1 million shares of our common stock and paid $0.425 per share dividends each quarter.			•
Continued to upgrade our crude oil rail car fleet by adding enhanced tank cars that exceed new safe transport standards issued by the Department of Transportation.	•

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Synergy and Business Improvement Objectives

In December 2014, we laid out our plans to deliver an additional $550 to $670 million of annual improvements during 2015. These improvements are in addition to what was delivered in 2014 and include $95 to $125 million from delivering West Coast improvements, $130 to $170 million from capturing margin improvements, and $325 to $375 million by growing our logistics operations. During the first half of 2015, we estimate that we delivered approximately $325 million towards our ongoing initiatives around synergies and business improvement objectives, including approximately $70 million related to West Coast improvements, approximately $100 million related to enhanced gross margins, and approximately $155 million from growing our logistics operations. These initiatives focus on improving capture rates and managing our costs to drive improvements in operating income. Our 2015 achievements include the following:

• Benefited from Los Angeles improvements including:

◦ Crude optimizations from sourcing new crudes;

◦ Crude blending capabilities at the Carson crude terminal that resulted in higher throughput volumes;

◦ New cargo sharing with our Martinez, California refinery; and

◦ Improved pipeline connectivity between the Los Angeles refinery sites.

• Re-distributed in-bound crude oil to our Kenai, Alaska refinery during maintenance and turnaround activities at our Anacortes, Washington refinery to optimize inventory utilization.

• Completed the second phase expansion of the waxy crude project at our Salt Lake City, Utah refinery.

Market Outlook

The market in the second half of the second quarter and to date in the third quarter has seen above average refining margins as a result of increased product demand and several unplanned refinery outages on the West Coast. We estimate the current margins could moderate as refineries are expected to come back online.

Current Market Conditions

Over the past twelve months, the price of crude oil dropped more than 50%. This type of price decline can have a pronounced impact on producers of crude oil and natural gas, as many have already announced capital program reductions. The market for crude oil, natural gas and refined products is affected by changes in economic conditions and supply and demand balance. Product values and crude oil prices are set by the market and are outside of our control. We continue to monitor the impact of these changes in market prices on our business including values recognized in connection with the recently acquired Rockies Natural Gas Business.

The first half of 2015 was also impacted by work stoppages and unplanned outages at refineries along the West Coast, including our own. However, the corresponding fall in gasoline and energy prices did bolster demand in domestic markets and improved crack spreads. Crack spreads can fluctuate significantly over time as a result of market conditions and supply and demand balances. U.S. gasoline demand continues to benefit from seasonal demand. We are optimizing our West Coast operations to maximize gasoline production and continue to maintain a competitive position in this well-balanced market.

Tesoro Logistics LP (“TLLP”)

TLLP was formed to own, operate, develop and acquire logistics assets to gather crude oil and natural gas, to distribute, transport and store crude oil and refined products and to process and fractionate natural gas and natural gas liquids (“NGL”).Tesoro Logistics GP, LLC (“TLGP”), a wholly-owned consolidated subsidiary, serves as the general partner of TLLP. We held an approximate 36% interest in TLLP at June 30, 2015, including a 2% general partner interest and all of the incentive distribution rights. In the first half of 2015, 56% of TLLP’s revenue was derived from us primarily under various long-term, fee-based commercial agreements that generally include minimum volume commitments.

TLLP’s strategy remains to grow earnings through four ways that have remained constant since its 2011 initial public offering:

• Focusing on stable, fee-based business;

• Optimizing our existing asset base;

• Pursuing organic expansion opportunities; and

• Continued growth through strategic acquisitions.

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By achieving this growth and through our ownership of TLLP’s general partner, we expect the logistics operations to maximize the integrated value of assets within the midstream and downstream value chain. This includes creating shareholder value through the lower cost of capital available to TLLP as a limited partnership and receipt of TLLP’s quarterly distributions. As the distributions per unit increase, our proportion of the total distribution will grow at an accelerated rate due to our incentive distribution rights. We believe TLLP is well positioned to achieve its primary business objectives and execute business strategies based on its long-term fee-based contracts, relationship with us, assets positioned in the high demand Williston Basin, and financial flexibility.

Relative to these goals, in 2015, TLLP intends to continue to implement this strategy and have completed or announced plans to:

• expand TLLP’s assets on its gathering and transportation system, located in the Bakken Region (the “High Plains System”) in support of growing third-party demand for transportation services and Tesoro’s increased demand for Bakken crude oil in the mid-continent and west coast refining systems, including:

◦ further expanding capacity and capability of TLLP’s common carrier pipeline in North Dakota and Montana (the “High Plains Pipeline”);

◦ expanding TLLP’s gathering footprint in the Bakken region, including crude oil, natural gas and water, to enhance and improve overall basin logistic efficiencies;

◦ adding other origin and destination points on the High Plains System to increase volumes; and

◦ expanding utilization of TLLP’s proprietary truck fleet, which should generate cost and operating efficiencies.

• increase TLLP’s terminalling volumes by expanding capacity and growing its third-party services at certain of its terminals;

• optimize Tesoro volumes and grow third-party volumes using TLLP’s logistics assets on the west coast; and

• expand and optimize TLLP’s acquired assets in the Rockies Natural Gas Business acquisition.

Total market value of TLLP units held by Tesoro was $1.6 billion and $1.7 billion at June 30, 2015 and December 31, 2014, respectively. At June 30, 2015, Tesoro held 28,181,748 common units at a market value of $57.12 per unit based on the closing unit price as of that date. At December 31, 2014, Tesoro held 28,181,748 common units at a market value of $58.85 per unit based on the closing unit price as of that date. For the three and six months ended June 30, 2015 and 2014, cash distributions received from TLLP, including incentive distribution rights, is as follows (in millions):

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Cash distributions received from TLLP (a):
For common/subordinated units held	$	19	$	11	$	38	$	22
For general partner units held	$	14	$	8	30		13

__________________

(a) Represents distributions received from TLLP during the three and six months ended June 30, 2015 and 2014 on common or subordinated units and general partner units held by Tesoro.

Vancouver Energy

Consistent with our strategic priorities to drive commercial excellence and capture value-driven growth, we entered into an equally-owned joint venture in 2013 with Savage Companies to construct, own and operate a unit train unloading and marine loading terminal at Port of Vancouver, USA (the “Vancouver Energy” terminal) with a total capacity of 360 thousand barrels per day (“Mbpd”) allowing for the delivery of cost-advantaged North American crude oil to the U.S. West Coast. Our contribution to the project is expected to be between $95 million and $105 million. These cost estimates include the entire project scope and requirements necessary to comply with American Society of Civil Engineering and International Building Codes for seismic risks in the area. Our contributions, totaling $2 million during 2015, are considered investments in joint ventures and are presented in net cash used in investing activities in our condensed statements of consolidated cash flows.

The project is progressing through the Energy Facility Site Evaluation Council (“EFSEC”) permitting process in the state of Washington. EFSEC has begun the adjudicative phase and based on the schedule it laid out is expected to release the Draft Environmental Impact Statement in November 2015. We expect EFSEC will submit its recommendation to the governor of Washington once it completes the adjudicative phase. The joint venture expects to begin construction of the facilities upon the governor’s approval of the project and issuance of permits. Project construction is estimated to take nine to twelve months; however, initial operations are expected to begin within a few months of construction start.

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RESULTS OF OPERATIONS

A discussion and analysis of the factors contributing to our results of operations is presented below. The accompanying condensed consolidated financial statements, together with the following information, are intended to provide investors with a reasonable basis for assessing our historical operations, but should not serve as the only criteria for predicting our future performance.

Non-GAAP Measures

Our management uses a variety of financial and operating metrics to analyze operating segment performance. To supplement our financial information presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”), our management uses additional metrics that are known as “non-GAAP” financial metrics in its evaluation of past performance and prospects for the future. These metrics are significant factors in assessing our operating results and profitability and include earnings before interest, income taxes, depreciation and amortization expenses (“EBITDA”). We define EBITDA as consolidated earnings, including earnings attributable to noncontrolling interest, excluding net earnings (loss) from discontinued operations, before depreciation and amortization expense, net interest and financing costs, income taxes and interest income. We define adjusted EBITDA as EBITDA plus or minus amounts determined to be “special items” by our management based on their unusual nature and relative significance to earnings (loss) in a certain period. We provide complete reconciliation and discussion of items identified as special items with our presentation of adjusted EBITDA.

We present EBITDA and adjusted EBITDA because we believe some investors and analysts use EBITDA and adjusted EBITDA to help analyze our cash flows including our ability to satisfy principal and interest obligations with respect to our indebtedness and use cash for other purposes, including capital expenditures. EBITDA and adjusted EBITDA are also used by some investors and analysts to analyze and compare companies on the basis of operating performance and by management for internal analysis. EBITDA and adjusted EBITDA should not be considered as alternatives to U.S. GAAP net earnings or net cash from operating activities. EBITDA and adjusted EBITDA have important limitations as analytical tools, because they exclude some, but not all, items that affect net earnings and net cash from operating activities.

Items Impacting Comparability

We changed our operating segment presentation in the second quarter of 2015 to reflect the changing nature of our underlying assets, operations and how our chief operating decision maker (“CODM”) manages our business. In previous periods, a portion of our marketing business related to sales in unbranded or wholesale channels was presented within our refining operating segment. Our branded operations represent the assets and operations that were previously shown as the retail segment. Upon considering the changes in our business including the transition from company-owned retail operations to multi-site operator model, we assessed how our CODM evaluates the business, assesses performance and allocates resources. From this analysis, we believe presentation of a marketing segment inclusive of both unbranded and branded marketing operations is appropriate. As of June 30, 2015, we revised our operating segments to include refining, TLLP and a realigned marketing segment. Comparable prior period information has been recast to reflect our revised segment presentation. No other changes were deemed necessary to our refining and TLLP segments.

The TLLP financial and operational data presented include the historical results of all assets acquired from Tesoro prior to the acquisition dates. The acquisitions from Tesoro were transfers between entities under common control. Accordingly, the financial information of TLLP contained herein has been retrospectively adjusted to include the historical results of the assets acquired in the acquisitions from Tesoro prior to the effective date of each acquisition for all periods presented. The TLLP financial data is derived from the combined financial results of the TLLP predecessor (the “TLLP Predecessor”). We refer to the TLLP Predecessor and, prior to each acquisition date, the acquisitions from Tesoro collectively, as “TLLP’s Predecessors.”

TLLP acquired assets related to the Rockies Natural Gas Business through its acquisition of QEP Field Services, LLC (“QEPFS”) from QEP Resources, Inc. on December 2, 2014. At the acquisition date, QEPFS held an approximate 56% limited partner interest in QEP Midstream Partners, LP (“QEPM”) and 100% of QEPM’s general partner, QEP Midstream Partners GP, LLC, which itself held a 2% general partner interest and all of the incentive distribution rights in QEPM. All intercompany transactions with TLLP and QEPM are eliminated upon consolidation.

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Summary

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In millions, except per share amounts)
Revenues	$	8,232		$	11,104		$	14,695		$	21,037
Costs and Expenses:
Cost of sales	6,398			9,867			11,738			18,815
Operating expenses	578			598			1,087			1,189
Selling, general and administrative expenses	61			92			152			123
Depreciation and amortization expense	182			135			361			265
(Gain) loss on asset disposals and impairments	4			2			8			(3		)
Operating Income	1,009			410			1,349			648
Interest and financing costs, net	(54		)	(41		)	(109		)	(118		)
Other income, net	3			3			2			2
Earnings Before Income Taxes	958			372			1,242			532
Income tax expense	334			132			430			188
Net Earnings from Continuing Operations	624			240			812			344
Loss from discontinued operations, net of tax	(4		)	—			(4		)	(1		)
Net Earnings	620			240			808			343
Less: Net earnings from continuing operations attributable to    noncontrolling interest	38			16			81			41
Net Earnings Attributable to Tesoro Corporation	$	582		$	224		$	727		$	302
Net Earnings (Loss) Attributable to Tesoro Corporation
Continuing operations	$	586		$	224		$	731		$	303
Discontinued operations	(4		)	—			(4		)	(1		)
Total	$	582		$	224		$	727		$	302
Net Earnings (Loss) per Share - Basic:
Continuing operations	$	4.67		$	1.73		$	5.84		$	2.33
Discontinued operations	(0.03		)	—			(0.03		)	(0.01		)
Total	$	4.64		$	1.73		$	5.81		$	2.32
Weighted average common shares outstanding - Basic	125.2			129.3			125.2			130.3
Net Earnings (Loss) per Share - Diluted:
Continuing operations	$	4.62		$	1.70		$	5.77		$	2.29
Discontinued operations	(0.03		)	—			(0.03		)	(0.01		)
Total	$	4.59		$	1.70		$	5.74		$	2.28
Weighted average common shares outstanding - Diluted	126.3			131.5			126.6			132.7

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	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In millions)
Reconciliation of Net Earnings to EBITDA and    Adjusted EBITDA
Net earnings	$	620		$	240		$	808		$	343
Loss from discontinued operations, net of tax	4			—			4			1
Depreciation and amortization expense	182			135			361			265
Income tax expense	334			132			430			188
Interest and financing costs, net	54			41			109			118
EBITDA (a)	1,194			548			1,712			915
Special items (b)	—			—			(29		)	(5		)
Adjusted EBITDA (a)	$	1,194		$	548		$	1,683		$	910
Reconciliation of Cash Flows from Operating Activities    to EBITDA and Adjusted EBITDA
Net cash from operating activities	$	1,055		$	526		$	907		$	376
Debt redemption charges	—			—			—			(31		)
Deferred charges	84			19			167			79
Changes in current assets and current liabilities	(249		)	(140		)	221			203
Income tax expense	334			132			430			188
Stock-based compensation expense	(7		)	(26		)	(35		)	(8		)
Interest and financing costs, net	54			41			109			118
Deferred income tax expense	(42		)	(16		)	(46		)	(24		)
Other	(35		)	12			(41		)	14
EBITDA (a)	1,194			548			1,712			915
Special items (b)	—			—			(29		)	(5		)
Adjusted EBITDA (a)	$	1,194		$	548		$	1,683		$	910

________________

(a) For a definition of EBITDA and adjusted EBITDA, see discussion above.

(b) Special items included in EBITDA but excluded for presentation of adjusted EBITDA consist of the following:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015			2014
	(In millions)
Reversal of lower of cost or market inventory adjustment (c)	$	—	$	—	$	(42	)	$	—
Throughput deficiency receivables (d)	—		—		13			—
Gain on sale of Boise Terminal (e)	—		—		—			(5		)
Total special items included in EBITDA	$	—	$	—	$	(29	)	$	(5	)

____________________

(c) Includes a benefit of $42 million for the reversal of a lower of cost or market inventory adjustment made in 2014 during the six months ended June 30, 2015.

(d) During the six months ended June 30, 2015, TLLP invoiced QEPFS customers for deficiency payments. TLLP did not recognize $13 million of revenue related to the billing period as it represented opening balance sheet assets for the acquisition of the Rockies Natural Gas Business; however, TLLP is entitled to the cash receipt from such billings.

(e) Includes a gain of $5 million for the six months ended June 30, 2014 resulting from TLLP’s sale of its Boise terminal.

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Consolidated Results

Selected consolidated operating data and results are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Refined Product Sales (Mbpd) (a)
Gasoline and gasoline blendstocks	512		505		500		509
Diesel fuel	201		213		190		200
Jet fuel	152		142		155		147
Heavy fuel oils, residual products and other	98		90		86		83
Total Refined Product Sales	963		950		931		939
Refined Product Sales Margin ($/barrel) (b)
Average sales price	$	88.87	$	123.35	$	81.79	$	119.19
Average costs of sales	72.14		110.98		68.77		108.21
Refined Product Sales Margin	$	16.73	$	12.37	$	13.02	$	10.98

________________

(a) Sources of total refined product sales include refined products manufactured at our refineries and refined products purchased from third parties. Total refined product sales margins include margins on sales of manufactured and purchased refined products.

(b) Average refined product sales price include all sales through our marketing segment as well as in bulk markets and exports through our refining segment. Average costs of sales and related sales margins include amounts recognized for the sale of refined products manufactured at our refineries along with the sale of refined products purchased from third parties to help fulfill supply commitments.

Three Months EndedJune 30, 2015 versus June 30, 2014

Overview. Our net earnings from continuing operations attributable to Tesoro Corporation were $586 million ($4.62 per diluted share) for the three months ended June 30, 2015 (“2015 Quarter”) compared to $224 million ($1.70 per diluted share) for the three months ended June 30, 2014 (“2014 Quarter”).

Gross Margins. Our gross refining margin increased$389 million during the 2015 Quarter compared to the 2014 Quarter driven by a stronger margin environment across the California and Pacific Northwest regions resulting in an overall increase of $6.02 in our gross refining margin per barrel. Our gross marketing margin increased$108 million primarily due to higher fuel margins. TLLP revenues, net of operating expenses, increased$103 million due to higher throughput volumes driven by acquired assets and continued expansion of its crude oil gathering assets.

Other Costs and Expenses. Operating expenses decreased$20 million to $578 million in the 2015 Quarter compared to the 2014 Quarter primarily due to declining natural gas costs and the conversion of company-operated retail sites to multi-site operators (“MSO”) that reduced costs associated with the management of station operations. This was partially offset by increases due to the Rockies Natural Gas Business acquisition. Our selling, general and administrative expenses were $61 million in the 2015 Quarter compared to $92 million in the 2014 Quarter primarily attributable to changes in stock-based compensation expense during the 2015 Quarter as compared to the 2014 Quarter, the majority related to our stock appreciation rights that are adjusted based on the market price of the stock each period. The stock-based compensation impact on the 2015 Quarter results include an expense of $7 million due to an increase in the stock price per share during the Quarter as compared to the 2014 Quarter results, which included a expense of $26 million due to the increase in the stock price per share during that Quarter.

Income Taxes. Our income tax expense totaled $334 million in the 2015 Quarter versus $132 million in the 2014 Quarter. The combined federal and state effective income tax rate was 34.9% and 35.5% during the 2015 Quarter and the 2014 Quarter, respectively. The 2015 rate benefited from an increased share of income from non-taxable noncontrolling interests attributable to TLLP.

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Six Months EndedJune 30, 2015 versus June 30, 2014

Overview. Our net earnings from continuing operations attributable to Tesoro Corporation were $731 million ($5.77 per diluted share) for the six months ended June 30, 2015 (“2015 Period”) compared to $303 million ($2.29 per diluted share) for the six months ended June 30, 2014 (“2014 Period”).

Gross Margins. Our gross refining margin increased$371 million during the 2015 Period compared to the 2014 Period driven by stronger margin environment across the California and Pacific Northwest regions, which was partially offset by the impact of the work stoppages and three refinery turnarounds during the 2015 Period resulting in an overall increase of $3.69 in our gross refining margin per barrel. Our gross marketing margin increased$206 million primarily due to higher fuel margins and increased fuel sales. TLLP revenues, net of operating expenses, increased$198 million due to higher throughput volumes driven by acquired assets and continued expansion of its crude oil gathering assets.

Other Costs and Expenses. Operating expenses decreased$102 million to $1.1 billion in the 2015 Period compared to the 2014 Period primarily due to lower refinery throughput as a result of our Martinez refinery being idled during the work stoppage, the work stoppage at our Anacortes refinery and a portion of our Los Angeles refinery, declining natural gas costs and the conversion of company-operated retail sites to MSO that reduced costs associated with the management of station operations partially offset by increases due to the Rockies Natural Gas Business acquisition. Our selling, general and administrative expenses were $152 million in the 2015 Period compared to $123 million in the 2014 Period primarily attributable to changes in stock-based compensation expense during the 2015 Period as compared to the 2014 Period, principally related to our stock appreciation rights that are adjusted based on the market price of the stock each period. The stock-based compensation impact on the 2015 Period results include an expense of $35 million due to an increase in the stock price per share during the Period as compared to the 2014 Period results, which included an expense of $8 million due to the increase in the stock price per share during that Period.

Income Taxes. Our income tax expense totaled $430 million in the 2015 Period versus $188 million in the 2014 Period. The combined federal and state effective income tax rate was 34.6% and 35.3% during the 2015 Period and the 2014 Period, respectively. The 2015 rate benefited from an increased share of income from non-taxable noncontrolling interests attributable to TLLP.

Refining Segment

We currently own and operate six petroleum refineries located in the western United States and sell transportation fuels to a wide variety of customers. Our refineries produce the majority of the transportation fuels that we sell. Our six refineries have a combined crude oil capacity of 850 Mbpd. We purchase crude oil and other feedstocks from domestic and foreign sources, including the Middle East, South America, western Africa, Canada, and other locations either through term agreements with renewal provisions or in the spot market. Our marketing segment, including its branded retail network, provides a committed outlet for the majority of the gasoline produced by our refineries; however, we also sell gasoline and gasoline blendstocks, jet fuel, diesel fuel, heavy fuel oils and residual products in bulk and opportunistically export refined products to certain foreign markets.

Market Overview. Results from our refining segment are heavily influenced by our gross refining margin and refinery throughputs. The gross refining margin is the difference between the prices of all manufactured refined products sold and the cost of crude oil and other feedstocks used to produce refined products, including the cost of transportation and distribution.The market for crude oil and products is affected by changes in economic conditions and supply and demand balance. Product values and crude oil prices are set by the market and are outside of our control. When evaluating the markets in which we operate, we utilize the U.S. Energy Information Administration (“EIA”) and other industry sources, to gather supply, demand, utilization, import and export information to forecast and monitor market conditions for our operating regions. We focus on PADD V, or the West Coast of the US where the majority of our operations are located. PADD V is defined by the Petroleum Administration for Defense Districts (“PADD”) as the states of Alaska, Arizona, California, Hawaii, Nevada, Oregon and Washington.

As a performance benchmark and a comparison with other industry participants, we utilize the West Coast and Mid-Continent crack spreads. The crack spread is a measure of the difference between market prices for crude oil and refined products and is a commonly used proxy within the industry to estimate or identify trends in gross refining margins. Crack spreads can fluctuate significantly over time as a result of market conditions and supply and demand balances. The West Coast 321 crack spread is calculated using 3 barrels of Alaska North Slope crude oil (“ANS”) producing 2 barrels of Los Angeles CARB gasoline and 1 barrel of Los Angeles CARB diesel. The Mid-Continent 321 crack spread is calculated using 3 barrels of West Texas Intermediate crude oil (“WTI”) producing 2 barrels of Group 3 gasoline and 1 barrel of Group 3 diesel.

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Our actual gross refining margins differ from these crack spreads based on the actual slate of crude oil we run at our refineries and the products we produce or yield. The global commodity markets for crude oil and refined products are subject to significant volatility resulting in rapidly changing prices and margin environments. Our refineries process a variety of crude oils that are sourced from around the world. The slate of crude oil we process can vary over time as of result of changes in market prices and shipping rates. Additionally, our refining gross margin is impacted by the changing crude oil differentials, which is the difference between the benchmark crude oils, WTI and Brent crude oil (“Brent”), and the actual crude oil we run at our refineries. We may experience financial risk associated with price volatility of crude oil and refined products and we may utilize financial hedge instruments to help mitigate such risks where possible.

The following table provides key information that can be used to monitor our business:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Crack Spreads
West Coast 321 (ANS) ($/barrel)	$	28.02	$	20.96	$	24.73	$	17.32
Mid-Continent 321 (WTI) ($/barrel)	$	19.29	$	17.79	$	18.26	$	17.62
Crude Oil Differentials
Brent to WTI	$	5.58	$	6.73	$	6.10	$	8.03
Brent to ANS	$	0.84	$	1.67	$	2.06	$	1.93
WTI to Bakken (Clearbrook)	$	1.43	$	5.90	$	2.47	$	5.12
ANS to Bakken (Clearbrook)	$	6.16	$	10.96	$	6.51	$	11.22
ANS to San Joaquin Valley Heavy (CA)	$	8.25	$	6.94	$	8.40	$	7.06
ANS to Canadian Lt. Sweet	$	5.17	$	12.05	$	6.30	$	13.19

Source: PLATTS

West Coast. Average U.S. West Coast crack spreads margins were up approximately 34% in the second quarter of 2015, as compared to second quarter of 2014 and were up approximately 43% in the first half of 2015, as compared to the first half of 2014. The increased margins are a result of increased demand year over year along with several extended unplanned refinery outages, including our own as discussed below, in PADD V, which reduced West Coast refinery utilization. The EIA reports have noted an increase in PADD V clean product imports to meet the increased demand.

The first half of 2015 was impacted by work stoppages at the Anacortes, Washington and Los Angeles and Martinez, California refineries. Also during the first half, planned maintenance was performed at our Martinez, Anacortes and Salt Lake City refineries. Our California region was the most impacted by the work stoppage. The Martinez refinery was idled during February and March and production was impacted at the Los Angeles refinery. As a result, compared to first half of 2014, California region throughput was lower by approximately 50 Mbpd resulting in increased operating costs of more than $0.50 per barrel impacting our abilities to capture the West Coast crack spreads observed during the 2015 Period.

Mid-Continent. Average Mid-Continent crack spreads margins were up approximately 8% in the second quarter of 2015, as compared to the second quarter of 2014 and were up approximately 4% in the first half of 2015, as compared to the first half of 2014. While margins have increased slightly year over year, the local crude oil differentials have more than offset this increase. The WTI to Bakken differential has decreased by approximately $4.50 per barrel increasing the price of Bakken, which resulted in a lower gross margin in the second quarter of 2015 compared to the second quarter of 2014. Bakken crude oil represented over 65% of the crude oil consumed by our Mid-Continent system in the second quarter of 2015.

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Operational Data and Results. Management uses various measures to evaluate performance and efficiency and to compare profitability to other companies in the industry. These measures include:

• Gross refining margin per barrel is calculated by dividing gross refining margin (revenues less costs of feedstocks, purchased refined products, transportation and distribution) by total refining throughput;

• Manufacturing costs before depreciation and amortization expense (“Manufacturing Costs”) per barrel is calculated by dividing Manufacturing Costs by total refining throughput;

• We calculate refined product sales margin per barrel by dividing refined product sales margin by total refined product sales (in barrels); and

• Refined product sales margin represents refined product sales less refined product cost of sales.

Investors and analysts use these financial measures to help analyze and compare companies in the industry on the basis of operating performance. These financial measures should not be considered alternatives to segment operating income, revenues, costs of sales and operating expenses or any other measure of financial performance presented in accordance with U.S. GAAP.

Our refining segment operating data are as follows:

	Three Months Ended June 30,		Six Months Ended June 30,
	2015	2014	2015	2014
Throughput (Mbpd)
Heavy crude (a)	174	161	135	165
Light crude	542	602	544	601
Other feedstocks	67	53	61	51
Total Throughput	783	816	740	817
Yield (Mbpd)
Gasoline and gasoline blendstocks	416	424	388	422
Diesel fuel	158	187	151	194
Jet fuel	118	121	118	124
Heavy fuel oils, residual products, internally produced fuel    and other	144	140	130	132
Total Yield	836	872	787	872

________________

(a) We define heavy crude oil as crude oil with an American Petroleum Institute gravity of 24 degrees or less.

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Our refining segment operating results are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In millions, except per barrel amounts)
Revenues
Refined products (a)	$	7,499	$	10,499	$	13,327	$	19,990
Crude oil resales and other	309		354		608		626
Total Revenues	$	7,808	$	10,853	$	13,935	$	20,616
Segment Operating Income
Gross refining margin (b) (c)	$	1,363	$	974	$	2,133	$	1,762
Expenses
Manufacturing costs	398		436		795		852
Other operating expenses	84		71		151		162
Selling, general and administrative expenses	3		4		4		5
Depreciation and amortization expense	122		104		241		205
Loss on asset disposals and impairments	3		1		6		—
Segment Operating Income (c)	$	753	$	358	$	936	$	538
Gross Refining Margin ($/throughput barrel) (d)	$	19.13	$	13.11	$	15.61	$	11.92
Manufacturing Cost before Depreciation and Amortization    Expense ($/throughput barrel)	$	5.58	$	5.88	$	5.93	$	5.77

________________

(a) Refined product sales include intersegment sales to our marketing segment of $4.8 billion and $6.5 billion for the three months ended June 30, 2015 and 2014, respectively, and $8.5 billion and $12.1 billion for the six months ended June 30, 2015 and 2014, respectively.

(b) Consolidated gross refining margin combines gross refining margin for each of our regions adjusted for other amounts not directly attributable to a specific region. Other amounts included $1 million for the three months ended June 30, 2014, and $1 million and $4 million for the six months ended June 30, 2015 and 2014, respectively. Gross refining margin includes the effect of intersegment sales to the marketing segment. Gross refining margin approximates total refining throughput multiplied by the gross refining margin per barrel.

(c) Our refining segment uses RINs to satisfy its obligations under the Renewable Fuels Standard, in addition to physically blending required biofuels. Effective April 1, 2013, we changed our intersegment pricing methodology and no longer reduced the amount marketing pays for the biofuels by the market value of the RINs due to significant volatility in the value of RINs. At the end of 2014, given the price of RINs has become more transparent in the price of biofuels, we determined our intersegment pricing methodology should include the market value of RINs as a reduction to the price our marketing segment pays to our refining segment. We made this change effective January 1, 2015. We have not adjusted financial information presented for our refining and marketing segments for the period ended June 30, 2014. Had we made this change effective January 1, 2014, operating income in our refining segment would have been reduced by $31 million and $59 million for the three and six months ended June 30, 2014, respectively, with a corresponding increase to operating income in our marketing segment.

(d) The gross refining margin per throughput barrel for the six months ended June 30, 2015 excludes the impact of the $42 million benefit recognized during the first quarter of 2015 from the reversal of a lower of cost or market inventory valuation adjustment recorded in the fourth quarter of 2014 in the computation of the rate at a consolidated or regional level. There was no impact to the three months ended June 30, 2015.

40

Our refining segment operating results by region are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in millions, except per barrel amounts)
Refining Data by Region
California (Martinez and Los Angeles)
Refining throughput (Mbpd)	523		523		473		523
Gross refining margin	$	957	$	578	$	1,393	$	979
Gross refining margin ($/throughput barrel) (a)	$	20.10	$	12.15	$	15.92	$	10.36
Manufacturing cost before depreciation and amortization    expense ($/throughput barrel)	$	5.89	$	6.66	$	6.62	$	6.57
Pacific Northwest (Washington and Alaska)
Refining throughput (Mbpd)	154		160		156		163
Gross refining margin	$	240	$	126	$	404	$	258
Gross refining margin ($/throughput barrel) (a)	$	17.12	$	8.66	$	14.02	$	8.71
Manufacturing cost before depreciation and amortization    expense ($/throughput barrel)	$	4.28	$	4.78	$	4.36	$	4.52
Mid-Continent (North Dakota and Utah)
Refining throughput (Mbpd)	106		133		111		131
Gross refining margin	$	166	$	269	$	335	$	521
Gross refining margin ($/throughput barrel) (a)	$	17.15	$	22.14	$	16.46	$	22.06
Manufacturing cost before depreciation and amortization    expense ($/throughput barrel)	$	5.94	$	4.14	$	5.22	$	4.11

________________

(a) The gross refining margin per throughput barrel for the six months ended June 30, 2015 excludes the impact of the $42 million benefit recognized during the first quarter of 2015 from a lower of cost or market inventory valuation adjustment recorded in the fourth quarter of 2014 in the computation of the rate at a consolidated or regional level. There was no impact to the three months ended June 30, 2015.

Three Months EndedJune 30, 2015 Compared with Three Months EndedJune 30, 2014

Overview. Operating income for our refining segment increased$395 million, or 110%, to $753 million during the 2015 Quarter as compared to the 2014 Quarter due to a stronger margin environment. Average U.S. West Coast crack spreads margins were approximately $28 per barrel, up over $7 per barrel in the 2015 Quarter as compared to the 2014 Quarter. The average crack spread margin during the 2015 Quarter was one of the highest on record in the West Coast.

Refining Throughput. Total refining throughput decreased33 Mbpd, or 4%, to 783 Mbpd during the 2015 Quarter as compared to the 2014 Quarter. Throughput was impacted by planned maintenance performed at our Anacortes, Washington and Salt Lake City, Utah refineries along with the restart of our Martinez, California refinery in April following the work stoppage.

Gross Refining Margins. Total gross margin increased$389 million, or 40%, to $1.4 billion in the 2015 Quarter as compared to the 2014 Quarter. On a per barrel basis, our gross refining margin increased$6.02 per barrel, or 46%, to $19.13 per barrel in the 2015 Quarter as compared to the 2014 Quarter given a stronger margin environment across the California and Pacific Northwest regions.

Six Months EndedJune 30, 2015 Compared with Six Months EndedJune 30, 2014

Overview. Operating income for our refining segment increased$398 million, or 74%, to $936 million during the 2015 Period as compared to the 2014 Period due to a stronger margin environment. Average U.S. West Coast crack spreads margins were approximately $25 per barrel up over $7 per barrel for the 2015 Period as compared to the 2014 Period. The average crack spread margin during the 2015 Period was one of the highest on record in the West Coast.

Refining Throughput. Total refining throughput decreased77 Mbpd, or 9%, to 740 Mbpd during the 2015 Period as compared to the 2014 Period primarily due to the work stoppage and two large planned turnarounds. Our California region was most significantly impacted with our Martinez, California refinery being idled and work stoppage affecting a portion of our Los Angeles refinery.

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Gross Refining Margins. Total gross margin increased$371 million, or 21%, to $2.1 billion in the 2015 Period as compared to the 2014 Period. On a per barrel basis, our gross refining margin increased$3.69 per barrel, or 31%, to $15.61 per barrel in the 2015 Period as compared to the 2014 Period given a stronger margin environment across the California and Pacific Northwest regions, which was offset by the impact of the work stoppages and three refinery turnarounds during the Period.

TLLP Segment

TLLP is a publicly traded limited partnership that was formed to own, operate, develop and acquire logistics assets. Its assets are integral to the success of Tesoro’s refining and marketing operations and generate revenue by charging fees for gathering crude oil and natural gas, for terminalling, transporting and storing crude oil and refined products and for processing and fractionating natural gas and NGLs. On December 2, 2014, TLLP completed the Rockies Natural Gas Business acquisition transforming TLLP into a full-service logistics company with assets allowing geographic and revenue diversification in support of our strategic initiatives.

Operational Data and Results. Management uses average revenue per barrel and average revenue per MMBtu to evaluate performance and compare profitability to other companies in the industry. We calculate average revenue per barrel as revenue divided by total throughput or keep-whole processing volumes. We calculate average revenue per MMBtu as revenue divided by gas gathering and fee-based processing volume. Investors and analysts use these financial measures to help analyze and compare companies in the industry on the basis of operating performance. These financial measures should not be considered as an alternative to segment operating income, revenues and operating expenses or any other measure of financial performance presented in accordance with U.S. GAAP.

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Our TLLP segment operating data are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015 (a)		2014 (a)		2015 (a)		2014 (a)
Gathering
Crude oil gathering pipeline throughput (Mbpd)	187		109		173		103
Average crude oil gathering pipeline revenue per barrel	$	1.71	$	1.34	$	1.80	$	1.34
Crude oil gathering trucking volume (Mbpd)	45		47		46		46
Average crude oil gathering trucking revenue per barrel	$	3.32	$	3.23	$	3.28	$	3.21
Gas gathering throughput (thousands of MMBtu/day) (b)	1,071		—		1,046		—
Average gas gathering revenue per MMBtu (b)	$	0.48	$	—	$	0.43	$	—
Processing (b)
NGL processing throughput (Mbpd)	8		—		7		—
Average keep-whole fee per barrel of NGL	$	35.14	$	—	$	33.60	$	—
Fee-based processing throughput    (thousands of MMBtu/day)	768		—		729		—
Average fee-based processing revenue per MMBtu	$	0.36	$	—	$	0.40	$	—
Terminalling and Transportation (c)
Terminalling throughput (Mbpd)	913		913		915		907
Average terminalling revenue per barrel	$	1.10	$	0.95	$	1.10	$	0.94
Pipeline transportation throughput (Mbpd)	801		813		810		815
Average pipeline transportation revenue per barrel	$	0.38	$	0.36	$	0.38	$	0.36

________________

(a) The results of operations for TLLP’s natural gas gathering and processing operations are shown in Mbpd, per barrel, million British thermal units (“MMBtu”) and per MMBtu amounts.

(b) TLLP commenced natural gas gathering and processing operations with the acquisition of Rockies Natural Gas Business on December 2, 2014.

(c) Includes historical results of TLLP’s Predecessors for the three and six months ended June 30, 2014. See additional information regarding TLLP’s Predecessors on page 33.

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Our TLLP segment operating results are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(In millions)
Segment Operating Income
Revenues
Gathering (a)	$	89	$	27	$	166	$	52
Processing (a)	67		—		134		—
Terminalling and transportation (b)	119		106		238		208
Total Revenues (c)	275		133		538		260
Expenses (b)
Operating expenses (d)	94		55		180		100
General and administrative expenses (e)	28		13		53		23
Depreciation and amortization expense	44		17		88		33
Gain on asset disposals and impairments	—		—		—		(4		)
Segment Operating Income	$	109	$	48	$	217	$	108

________________

(a) TLLP commenced natural gas gathering and processing operations with the acquisition of Rockies Natural Gas Business on December 2, 2014.

(b) Includes historical results of TLLP’s Predecessors for the three and six months ended June 30, 2014. See additional information regarding TLLP’s Predecessors on page 33.

(c) TLLP segment revenues from services provided to our refining segment were $154 million and $117 million for the three months ended June 30, 2015 and 2014, respectively, and $302 million and $228 million for the six months ended June 30, 2015 and 2014, respectively. These amounts are eliminated upon consolidation.

(d) TLLP segment operating expenses include amounts billed by Tesoro for services provided to TLLP under various operational contracts. Amounts billed by Tesoro totaled $24 million and $20 million for the three months ended June 30, 2015 and 2014, respectively, and $49 million and $40 million for the six months ended June 30, 2015 and 2014, respectively. Operating expenses also include imbalance gains and reimbursements pursuant to the Amended Omnibus Agreement of $11 million and $8 million for the three months ended June 30, 2015 and 2014, respectively, and $19 million and $15 million for the six months ended June 30, 2015 and 2014, respectively. These amounts are eliminated upon consolidation. TLLP segment third-party operating expenses related to the transportation of crude oil and refined products are reclassified to cost of sales in our condensed statements of consolidated operations upon consolidation.

(e) TLLP segment general and administrative expenses include amounts charged by Tesoro for general and administrative services provided to TLLP under various operational and administrative contracts. These amounts totaled $18 million and $10 million for the three months ended June 30, 2015 and 2014, respectively, and $35 million and $17 million for the six months ended June 30, 2015 and 2014, respectively, and are eliminated upon consolidation. TLLP segment third-party general and administrative expenses are reclassified to cost of sales in our condensed statements of consolidated operations upon consolidation.

Three Months EndedJune 30, 2015 Compared with Three Months EndedJune 30, 2014

Overview. Operating income for TLLP increased$61 million to $109 million due to the higher revenues driven by the Rockies Natural Gas Business partially offset by an increase in operating expenses of $39 million to $94 million in the 2015 Quarter as compared to the 2014 Quarter. The Rockies Natural Gas Business contributed $44 million toward the increase in TLLP’s operating income during the 2015 Quarter.

Revenues and Throughput. Crude oil gas gathering throughput volume increased as a result of the assets acquired in the Rockies Natural Gas Business acquisition and the continuing expansion of the High Plains System. This increase in volumes for crude oil gathering pipeline throughput includes a 84 Mbpd increase in third-party volumes. These higher throughput volumes resulted in an increase to revenues of $142 million to $275 million during the 2015 Quarter as compared to the 2014 Quarter.

Operating and Other Expenses. Operating expenses increased $39 million during the 2015 Quarter primarily related to the operations acquired in the Rockies Natural Gas Business acquisition and west coast assets acquired from Tesoro during 2014. General and administrative expenses increased by $15 million due to higher allocations of overhead costs associated with increased costs to support the growth of the business.

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Six Months EndedJune 30, 2015 Compared with Six Months EndedJune 30, 2014

Overview. Operating income for TLLP increased$109 million to $217 million due to the higher revenues, offset by an increase in operating expenses of $80 million to $180 million in the 2015 Period as compared to the 2014 Period. The Rockies Natural Gas Business contributed $82 million toward the increase in TLLP’s operating income during the 2015 Period.

Revenues and Throughput. Crude oil gas gathering throughput volume increased as a result of the assets acquired in the Rockies Natural Gas Business acquisition and the continuing expansion of the High Plains System. This increase in volumes for crude oil gathering pipeline throughput includes a 70 Mbpd increase in third-party volumes. These higher throughput volumes resulted in an increase to revenues of $278 million to $538 million during the 2015 Period as compared to the 2014 Period.

Operating and Other Expenses. Operating expenses increased $80 million during the 2015 Period primarily related to the operations acquired in the Rockies Natural Gas Business acquisition and west coast assets acquired from Tesoro during 2014. General and administrative expenses increased by $30 million due to higher allocations of overhead costs associated with increased costs to support the growth of the business.

Marketing Segment

As discussed on page 33, we revised our segment presentation during the second quarter of 2015 to present a marketing segment inclusive of both branded and unbranded operations. Previously, our retail segment included only branded operations and unbranded operations were included in the refining segment operating results.

We sell gasoline and diesel fuel in the western United States through branded and unbranded channels. Our branded operations include transportation fuel sales through retail stations and agreements with third-party dealers and distributors (or “Jobber/dealers”). Our unbranded, or wholesale, business includes volumes sold through agreements with third-party dealers. Our branded and unbranded channels provide committed outlets for the majority of the gasoline produced by our refineries. During the fourth quarter 2014, we converted our company-operated retail locations to MSOs and retained the transportation fuel sales. Under these MSO arrangements, we no longer operate the convenience stores, own the related merchandise inventory or employ the store employees as the MSO operates the stations. Our marketing segment included a network of 2,265 retail stations under the ARCO^®, Shell^®,Exxon^®, Mobil^®, USA Gasoline^TM and Tesoro^® brands as of June 30, 2015.

Operational Data and Results. Management uses fuel margin per gallon to compare fuel results to other companies in the industry. There are a variety of ways to calculate fuel margin per gallon; different companies may calculate it in different ways. We calculate fuel margin per gallon by dividing fuel gross margin by fuel sales volumes. Investors and analysts may use fuel margin per gallon to help analyze and compare companies in the industry on the basis of operating performance. This financial measure should not be considered an alternative to revenues, segment operating income or any other measure of financial performance presented in accordance with U.S. GAAP. Fuel margin and fuel margin per gallon include the effect of intersegment purchases from the refining segment.

Our marketing segment operating data and results are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in millions, except per gallon amounts)
Average Number of Branded Stations (during the period)
Company/MSO-operated (a)	583		581		584		578
Jobber/dealer operated	1,680		1,693		1,679		1,695
Total Average Branded Stations	2,263		2,274		2,263		2,273
Branded and Unbranded Fuel Sales (millions of gallons)	2,099		2,079		4,159		4,020
Marketing Revenues
Fuel	$	5,051	$	6,649	$	8,999	$	12,313
Other non-fuel (b)	16		69		32		130
Total Revenues	$	5,067	$	6,718	$	9,031	$	12,443
Branded and Unbranded Fuel Margin ($/gallon)	$	0.14	$	0.08	$	0.12	$	0.06
Segment Operating Income
Gross Margins
Fuel (c)	$	287	$	163	$	491	$	255
Other non-fuel (b)	15		31		29		59
Total Gross Margins	302		194		520		314
Expenses
Operating expenses	72		92		141		174
Selling, general and administrative expenses	6		3		9		6
Depreciation and amortization expense	11		10		23		20
Loss on asset disposals and impairments	1		1		2		2
Segment Operating Income (c)	$	212	$	88	$	345	$	112

________________

(a) In December 2014, we converted our company-operated retail stations to MSO retail stations. The impact of this change was not material to our marketing segment results.

(b) Includes merchandise revenue or gross margins for the three and six months ended June 30, 2014.

(c) Our refining segment uses RINs to satisfy its obligations under the Renewable Fuels Standard, in addition to physically blending required biofuels. Effective April 1, 2013, we changed our intersegment pricing methodology and no longer reduced the amount marketing pays for the biofuels by the market value of the RINs due to significant volatility in the value of RINs. At the end of 2014, given the price of RINs has become more transparent in the price of biofuels, we determined our intersegment pricing methodology should include the market value of RINs as a reduction to the price our marketing segment pays to our refining segment. We made this change effective January 1, 2015. We have not adjusted financial information presented for our refining and marketing segments for the period ended June 30, 2014. Had we made this change effective January 1, 2014, operating income in our refining segment would have been reduced by $31 million and $59 million for the three and six months ended June 30, 2014, respectively, with a corresponding increase to operating income in our marketing segment.

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Three Months EndedJune 30, 2015 Compared with Three Months EndedJune 30, 2014

Overview. Operating income increased$124 million to $212 million during the 2015 Quarter as compared to the 2014 Quarter primarily as a result of our increased gross fuel margin.

Gross Margin. Gross margin increased$108 million, or 56%, to $302 million during the 2015 Quarter as compared to the 2014 Quarter primarily due to the higher fuel margin per gallon. We experienced higher branded and unbranded fuel margin driven by favorable market conditions and strong demand. Branded and unbranded fuel sales volumes were relatively flat at 2.1 billion gallons during the 2015 Quarter and 2014 Quarter.

Operating and Other Expenses. The decrease of $20 million in operating expenses was primarily driven by our conversion to MSOs at retail stations that reduced costs associated with the management of the station operations.

Six Months EndedJune 30, 2015 Compared with Six Months EndedJune 30, 2014

Overview. Operating income increased$233 million to $345 million during the 2015 Period as compared to the 2014 Period primarily as a result of our increased gross fuel margin.

Gross Margin. Gross margin increased$206 million, or 66%, to $520 million during the 2015 Period as compared to the 2014 Period primarily due to the higher fuel margin per gallon. We experienced higher branded and unbranded fuel margin driven by favorable market conditions and strong demand. Branded and unbranded uel sales volumes were relatively flat at 4.2 billion and 4.0 billion gallons during the 2015 Period and 2014 Period, respectively.

Operating and Other Expenses. The decrease of $33 million in operating expenses was primarily driven by our conversion to MSOs at retail stations that reduced costs associated with the management of the station operations.

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CAPITAL RESOURCES AND LIQUIDITY

Overview

We operate in an environment where our capital resources and liquidity are impacted by changes in the price of crude oil and refined products, availability of trade credit, market uncertainty and a variety of additional factors beyond our control. These factors include the level of consumer demand for transportation fuels, weather conditions, fluctuations in seasonal demand, governmental regulations, geo-political conditions and overall market and global economic conditions. See “Important Information Regarding Forward-Looking Statements” on page 56 for further information related to risks and other factors. Future capital expenditures, as well as borrowings under our credit agreements and other sources of capital, may be affected by these conditions.

Capitalization

Our capital structure at June 30, 2015 was comprised of the following (in millions):

Debt, including current maturities:	June 30, 2015
Tesoro Corporation Revolving Credit Facility	$	—
Term Loan Facility	398
4.250% Senior Notes due 2017	450
5.375% Senior Notes due 2022	475
5.125% Senior Notes due 2024	300
Capital lease obligations and other	41
Tesoro Debt	1,664
TLLP Revolving Credit Facility	299
TLLP 5.500% Senior Notes due 2019	500
TLLP 5.875% Senior Notes due 2020	470
TLLP 6.125% Senior Notes due 2021	550
TLLP 6.250% Senior Notes due 2022	800
TLLP Capital lease obligations and other	8
TLLP Debt	2,627
Total Debt	4,291
Unamortized Issuance Costs (a)	(80		)
Debt, Net of Unamortized Issuance Costs	4,211
Total Equity	7,383
Total Capitalization	$	11,594

________________

(a) The unamortized issuance costs for TLLP were $41 million, including an unamortized premium of $4 million as of June 30, 2015.

Our debt, net of unamortized issuance costs, to capitalization ratio was 36% and 37% at June 30, 2015 and December 31, 2014, respectively. Our debt, net of unamortized issuance costs, to capitalization ratio, excluding TLLP, was 25% and 27% at June 30, 2015 and December 31, 2014, respectively, which excludes TLLP total debt, net of unamortized issuance costs and capital leases of $2.6 billion and $2.5 billion at June 30, 2015 and December 31, 2014, respectively and excludes noncontrolling interest of $2.5 billion at both June 30, 2015 and December 31, 2014. TLLP’s debt is non-recourse to Tesoro, except for TLGP.

The Tesoro Corporation revolving credit facility (the “Revolving Credit Facility”), senior notes and term loan facility agreement (the “Term Loan Facility”) each limit our ability, under certain circumstances, to make certain restricted payments (as defined in our debt agreements), which include dividends, purchases of our stock or voluntary prepayments of subordinate debt. The aggregate amount of restricted payments cannot exceed an amount defined in each of the debt agreements. The indentures for our senior notes also limit certain of our subsidiaries’ ability to make certain payments and distributions. We do not believe that these limitations will restrict our ability to pay dividends or buy back stock under our current programs.

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Credit Facilities Overview

Our primary sources of liquidity are cash flows from operations with additional sources available under borrowing capacity from our revolving lines of credit. We ended the second quarter of 2015 with $978 million of cash and cash equivalents and $299 million under the TLLP senior secured revolving credit agreement (the “TLLP Revolving Credit Facility”). We believe available capital resources will be adequate to meet our capital expenditure, working capital and debt service requirements. We had available capacity under our credit facilities as follows at June 30, 2015 (in millions):

	Total Capacity		Amount Borrowed as of June 30, 2015		Outstanding Letters of Credit		Available Capacity		Expiration
Tesoro Corporation Revolving Credit Facility (a)	$	3,000	$	—	$	136	$	2,864	November 18, 2019
TLLP Revolving Credit Facility	900		299		—		601		December 2, 2019
Letter of Credit Facilities	2,035		—		80		1,955
Total credit facilities	$	5,935	$	299	$	216	$	5,420

________________

(a) Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity of $3.0 billion.

As of June 30, 2015, our credit facilities were subject to the following expenses and fees:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Tesoro Corporation Revolving Credit Facility    ($3.0 billion) (b)	0.19%	1.50%	3.25%	0.50%	0.375%
TLLP Revolving Credit Facility ($900 million) (c)	0.19%	2.50%	3.25%	1.50%	0.50%

________________

(b) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our senior secured credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

(c) TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the TLLP Revolving Credit Facility incur fees at the Eurodollar margin rate.

Tesoro Corporation Revolving Credit Facility

Overview. OurRevolving Credit Facility provides for borrowings (including letters of credit) up to the lesser of the amount of a periodically adjusted borrowing base, which consists of Tesoro’s eligible cash and cash equivalents, receivables and petroleum inventories, net of the standard reserve as defined, or the Revolving Credit Facility’s total capacity of $3.0 billion. We had unused credit availability of approximately 95% of the eligible borrowing base at June 30, 2015. Our Revolving Credit Facility is guaranteed by substantially all of Tesoro’s active domestic subsidiaries, excluding TLGP, TLLP and its subsidiaries, and certain foreign subsidiaries, and is secured by substantially all of Tesoro’s active domestic subsidiaries’ crude oil and refined product inventories, cash and receivables.

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Covenants. Our Revolving Credit Facility, as amended, senior notes and Term Loan Facility each limit our ability, under certain circumstances, to make certain restricted payments (as defined in our debt agreements), which include dividends, purchases of our stock or voluntary prepayments of subordinate debt. The aggregate amount of restricted payments cannot exceed an amount defined in each of the debt agreements. The indentures for our senior notes also limit certain of our subsidiaries ability to make certain payments and distributions. These existing covenants and restrictions may limit, among other things, our ability to:

• pay dividends and make other distributions with respect to our capital stock and purchase, redeem or retire our capital stock;

• incur additional indebtedness and issue preferred stock;

• make voluntary prepayments of subordinate debt;

• sell assets unless the proceeds from those sales are used to repay debt or are reinvested in our business;

• incur liens on assets to secure certain debt;

• engage in certain business activities;

• make certain payments and distributions from our subsidiaries;

• engage in certain mergers or consolidations and transfers of assets; and

• enter into certain transactions with affiliates.

We do not believe that the limitations will restrict our ability to pay dividends or repurchase stock under our current programs. We have a default covenant that requires us to maintain specified levels of tangible net worth. There were no changes to the Revolving Credit Facility covenants during the six months ended June 30, 2015. We were in compliance with our debt covenants as of and for the six months ended June 30, 2015.

The Revolving Credit Facility allows us to obtain letters of credit under separate letter of credit agreements for foreign crude oil purchases. Our uncommitted letter of credit agreements had $80 million outstanding as of June 30, 2015. Letters of credit outstanding under these agreements incur fees ranging from 0.40% to 1.00% and are secured by the crude oil inventories for which they are issued. Capacity under these letter of credit agreements is available on an uncommitted basis and can be terminated by either party at any time.

TLLP Revolving Credit Facility

Overview. The TLLP Revolving Credit Facility provided for total loan availability of $900 million as of June 30, 2015, and TLLP may request that the loan availability be increased up to an aggregate of $1.5 billion, subject to receiving increased commitments from the lenders. The TLLP Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of TLLP’s subsidiaries, with the exception of certain non-wholly owned subsidiaries acquired in the Rockies Natural Gas Business acquisition, and secured by substantially all of TLLP’s assets. Borrowings are available under the TLLP Revolving Credit Facility up to the total loan availability of the facility.

Covenants. The TLLP Revolving Credit Facility and TLLP senior notes contain certain covenants that may, among other things, limit or restrict TLLP’s ability (as well as those of TLLP’s subsidiaries) to:

• incur additional indebtedness and incur liens on assets to secure certain debt;

• pay and make certain restricted payments;

• make distributions from its subsidiaries;

• dispose of assets in excess of an annual threshold amount;

• in the case of the TLLP Revolving Credit Facility, make certain amendments, modifications or supplements to organization documents and material contracts;

• in the case of the TLLP Revolving Credit Facility, engage in certain business activities;

• engage in certain mergers or consolidations and transfers of assets; and

• enter into non-arm’s-length transactions with affiliates.

We do not believe that the limitations imposed by the TLLP Revolving Credit Facility will restrict TLLP’s ability to pay distributions. Additionally, the TLLP Revolving Credit Facility contains covenants that require TLLP to maintain certain interest coverage and leverage ratios. TLLP was in compliance with all TLLP Revolving Credit Facility and TLLP senior notes covenants as of and for the six months ended June 30, 2015.

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Tesoro Debt

Term Loan Facility. We entered into the Term Loan Facility in January 2013, which allowed us to borrow up to an aggregate of $500 million, which we used to fund a portion of the acquisition of BP’s integrated Southern California refining, marketing and logistics business (the “Los Angeles Acquisition”). The Term Loan Facility matures May 30, 2016. The obligations under the Term Loan Facility are secured by all equity interests of Tesoro Refining & Marketing Company LLC and Tesoro Alaska Company LLC, the Tesoro and USA Gasoline trademarks and those trademarks containing the name “ARCO” acquired in the Los Angeles Acquisition, and junior liens on certain assets. The Term Loan Facility may be repaid at any time but amounts may not be re-borrowed. There were no payments on the borrowings under the Term Loan Facility for the six months ended June 30, 2015. The borrowings under our Term Loan Facility incurred interest at a rate of 2.44% as of June 30, 2015 based on the following expense and fee schedule:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Term Loan Facility ($398 million) (a)	0.19%	2.25%	3.25%	1.25%	—%

____________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing.

The Term Loan Facility contains affirmative covenants, representations and warranties and events of default substantially similar to those set forth in the Revolving Credit Facility and contains negative covenants substantially similar to those set forth in most of our current indentures.

Share Repurchases

We are authorized by our Board of Directors (the “Board”) to purchase shares of our common stock in open market transactions at our discretion. The Board’s authorization has no time limit and may be suspended or discontinued at any time. Purchases of our common stock can also be made to offset the dilutive effect of stock-based compensation awards and to meet our obligations under employee benefit and compensation plans, including the exercise of stock options and vesting of restricted stock and to fulfill other stock compensation requirements. We purchased approximately 3.1 million shares and 3.7 million shares of our common stock for approximately $269 million and $200 million during the six months ended June 30, 2015 and 2014, respectively. We have $731 million remaining under our authorized programs.

Cash Dividends

We paid cash dividends totaling $53 million and $107 million for the three and six months ended June 30, 2015, respectively, based on a $0.425 per share quarterly cash dividend on common stock. We paid cash dividends totaling $32 million and $65 million for the three and six months ended June 30, 2014, respectively, based on a $0.25 per share quarterly cash dividend on common stock. On August 3, 2015, our Board declared a cash dividend of $0.50 per share, payable on September 14, 2015 to shareholders of record on August 28, 2015.

Cash Flow Summary

Working capital (excluding cash) decreased$92 million in the 2015 Period primarily related to the timing of our payments for crude oil and refined product purchases, which was offset by timing of receivables.

Components of our cash flows are set forth below (in millions):

	Six Months Ended June 30,
	2015			2014
Cash Flows From (Used in):
Operating activities	$	907		$	376
Investing activities	(548		)	(267		)
Financing activities	(381		)	(108		)
Increase (Decrease) in Cash and Cash Equivalents	$	(22	)	$	1

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Net cash from operating activities during the 2015 Period totaled $907 million as compared to $376 million in the 2014 Period. The increase in net earnings of $465 million and impact of non-cash items were offset by the change in working capital during the 2015 Period compared to the 2014 Period. Net cash used in investing activities increased$281 million to $548 million in the 2015 Period as compared to $267 million in the 2014 Period, primarily due to the increase in capital expenditures to $540 million. Net cash used in financing activities during the 2015 Period totaled $381 million as compared to $108 million in the 2014 Period. The change of $273 million is primarily attributable to increased repurchases of common stock and increased dividend payments during the 2015 Period compared to the 2014 Period partially offset by a decrease in net borrowings on revolving credit facilities.

Capital Expenditures

The cost estimates for capital expenditures, including environmental projects, described below are subject to further review and analysis and permitting requirements. Our capital spending plans include the following major projects (in millions):

Major Projects	Total Project Expected Capital Expenditures (a)		Actual 2015 Capital Expenditures (b)		Expected Capital Expenditures for Remainder of 2015 (a)		Expected In-service Date
Completed:
Salt Lake City Refinery Expansion (c)	$	380	$	82	$	—	2013-2015
In Process:
TLLP’s Connolly Gathering System (d)	150		54		61		2014-2015
Clean Product Upgrade Project (e)	300		12		18		2017
Avon Wharf Project (f)	168		37		39		2017
Under Development:
Los Angeles Refinery Integration (g)	$ 400 - 425		$	17	$	33	2017

____________________

(a) The cost estimates for capital expenditures exclude estimates for capitalized interest and labor costs.

(b) 2015 actual capital expenditure disclosures include capitalized interest and labor costs associated with the project.

(c) The expansion project at the Salt Lake City refinery improved yields of gasoline and diesel, improved the flexibility of processing crude feedstocks and increased throughput capacity by 4 Mbpd. The expansion project increases potential Waxy Crude oil processing capabilities up to 26 Mbpd. We completed the work in the second quarter of 2015.

(d) TLLP is building and funding the construction of a pipeline gathering system (the “Connolly Gathering System”) to gather crude oil from various points in Dunn County, North Dakota for delivery at its existing Connolly Station with an expected capacity of approximately 60 Mbpd.

(e) The Clean Product Upgrade Project at our Anacortes, Washington refinery allows compliance with Tier 3 gasoline sulfur reduction; reduction of gasoline production costs; extraction of existing mixed xylene from gasoline and logistics capability for its export to manufacturers of polyester fibers and films used in clothing, food packaging and beverage containers. The project was approved by our Board in February 2015 with approximately $30 million approved for the first phase of the project. The project remains subject to regulatory approval, which we expect to finalize in 2015.

(f) The regulatory and compliance project for the Avon Wharf in Martinez, California is required under the 2013 California building code for Marine Oil Terminal Engineering and Maintenance Standards (“MOTEMS”). The project will replace the existing berth with a MOTEMS compliant structure that will improve clean product movements and has received all regulatory approval and permits.

(g) The integration project at the Los Angeles refinery is designed to improve the flexibility of gasoline and diesel yields and reduce carbon dioxide emissions. The proposed project, subject to final Board approval, project scoping, engineering and regulatory approval, includes decommissioning the fluid catalytic cracking unit at our Wilmington refinery.

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Capital expenditures during the 2015 Quarter and Period were $237 million and $497 million, respectively, including $77 million and $143 million of TLLP capital spending for the 2015 Quarter and Period, respectively. Our capital spending is expected to be $600 million for 2015, reflecting the Company’s emphasis on long-term strategic priorities including continued focus on safety and reliability and greater focus on value-driven growth. The 2015 capital budget excludes TLLP expected capital spending of $450 million, which is primarily financed by TLLP. Our 2015 Quarter, Period and full-year capital expenditure amounts, excluding TLLP capital spending, are comprised of the following project categories at June 30, 2015:

Project Category	Percent of 2015 Quarter Capital Expenditures	Percent of 2015 Period Capital Expenditures	Percent of 2015 Expected Capital Expenditures
Regulatory	36%	30%	25%
Sustaining	18%	20%	20%
Income Improvement	46%	50%	55%

Turnarounds and other Deferred Expenditures

We spent $87 million and $170 million during the 2015 Quarter and 2015 Period, respectively, for turnarounds, catalysts and other deferred expenditures, including $77 million and $154 million for turnarounds primarily at our Anacortes, Martinez and Los Angeles refineries during the 2015 Quarter and 2015 Period, respectively. Total expected spending for 2015 on turnarounds and catalysts is approximately $280 million primarily spent at our Los Angeles, Anacortes and Martinez refineries. Additionally, total expected spend on deferred branding costs in our marketing segment is approximately $50 million for 2015.

Off-Balance Sheet Arrangements

We have not entered into any transactions, agreements or other contractual arrangements that would result in off-balance sheet liabilities.

Environmental and Other Matters

We are a party to various litigation and contingent loss situations, including environmental and income tax matters, arising in the ordinary course of business. Although we cannot predict the ultimate outcomes of these matters with certainty, we have accrued for the estimated liabilities when appropriate. We believe that the outcome of these matters will not have a material impact on our liquidity or financial position, although the resolution of certain of these matters could have a material impact on our interim or annual results of operations. Additionally, if applicable, we accrue receivables for probable third-party recoveries.

Environmental Laws and Regulations. We are subject to extensive federal, state and local environmental laws and regulations. These laws, which change frequently, regulate the discharge of materials into the environment and may require us to remove or mitigate the environmental effects of the disposal or release of petroleum or chemical substances at various sites, install additional controls or make other modifications to certain emission sources, equipment or facilities.

Future expenditures may be required to comply with the Clean Air Act and other federal, state and local requirements for our various sites, including our refineries, tank farms, pipelines and currently and previously owned or operated terminal and retail station properties. The impact of these legislative and regulatory requirements, including any greenhouse gas cap-and-trade program or low carbon fuel standards, could result in increased compliance costs, additional operating restrictions on our business and an increase in the cost of the products we manufacture, which could have a material adverse impact on our liquidity, consolidated financial position, or results of operations.

The U.S. Environmental Protection Agency (“EPA”) proposed regulating greenhouse gas (“GHG”) emissions under the Clean Air Act in 2009. The first of these regulations, finalized in April 2010, set standards for the control of GHG emissions from light trucks and cars, which could reduce the demand for our manufactured transportation fuels. In addition, the EPA has also finalized regulations to establish permitting requirements for stationary sources that emit GHG above a certain threshold. On June 23, 2014, the U.S. Supreme Court narrowed the EPA’s regulatory authority but upheld portions of the EPA’s rulemaking that would regulate GHG emissions from permitted stationary sources. The stationary source permitting requirements could impose emission controls that increase required capital expenditures at our refineries. We cannot currently predict the impact of these or other regulations on our liquidity, financial position, or results of operations.

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The Energy Independence and Security Act was enacted into federal law in December 2007 creating a second Renewable Fuels Standard (“RFS2”) requiring the total volume of renewable transportation fuels (including ethanol and advanced biofuels) sold or introduced in the U.S. to reach 20.5 billion gallons in 2015 and to increase to 36.0 billion gallons by 2022. These requirements could reduce future demand growth for petroleum products that we manufacture. In the near term, the RFS2 presents ethanol production and logistics challenges for the ethanol, alternative fuel and refining and marketing industries. The EPA has proposed, but has yet to finalize, reduced total renewable fuel requirements of 15.9 billion gallons for 2014, 16.3 billion gallons for 2015 and 17.4 billion gallons for 2016. The final requirements are expected in November 2015. In the absence of binding renewable fuel requirements for 2014 and 2015, we believe that we are currently meeting our renewable fuel obligations pursuant to the RFS2, through a combination of Renewable Identification Numbers (“RINs”) that were carried over from prior periods, blending renewable fuels obtained from third parties and purchases of RINs in the open market. The spending related to the purchases of RINs for 2015 is not expected to be material based on our operations and the current regulatory environment. Actual costs related to RINs may differ due to changes in the market price of RINs and the ultimate destinations of our products. Additional expenditures could be required to logistically accommodate the increased use of renewable transportation fuels. While we cannot currently estimate the ultimate impact of this statute and implementing its regulations for future blending mandates, and currently believe that the outcome will not have a material impact on our liquidity or financial position, the ultimate outcome could have a material impact on our results of operations.

In California, Assembly Bill 32 (“AB 32”) created a statewide cap on greenhouse gas emissions by requiring that the state return to 1990 emission levels by 2020. AB 32 focuses on using market mechanisms, such as a cap-and-trade program and a low carbon fuel standard (“LCFS”), to achieve emissions reduction targets. The LCFS became effective in January 2010 and requires a 10% reduction in the carbon intensity of gasoline and diesel fuel by 2020. In 2011, the California Air Resources Board (“CARB”) approved cap-and-trade requirements that became effective in January 2013, and all of AB 32 related regulations are to be fully implemented by 2020. In December 2011, a U.S. District Court ruled that the LCFS violates the U.S. Constitution. CARB appealed the decision and, on September 18, 2013, the U.S. Ninth Circuit Court of Appeals reversed the lower court’s decision and remanded the case to the lower court to rule on whether the ethanol provisions of the LCFS are unconstitutional. We cannot predict the ultimate outcome of the lower court’s ruling on the LCFS, and the implementation and implications of AB 32 will take many years to realize. On January 1, 2015, transportation fuels were brought into the California cap-and-trade program, making fuel suppliers responsible for carbon emission from their products. The cost for carbon emissions is being passed through to customers. We cannot currently predict the long-term impact of the LCFS, cap and trade requirements, and other AB 32 related regulations on our liquidity, financial position, or results of operations.

Washington Refinery Fire. The naphtha hydrotreater unit at our Washington refinery was involved in a fire in April 2010, which fatally injured seven employees and rendered the unit inoperable. The Washington State Department of Labor & Industries (“L&I”) initiated an investigation of the incident. L&I completed its investigation in October 2010, issued a citation and assessed a $2.4 million fine, which we appealed. L&I reassumed jurisdiction of the citation and affirmed the allegations in December 2010. We disagree with L&I’s characterizations of operations at our Washington refinery and believe, based on available evidence and scientific reviews, that many of the agency’s conclusions are mistaken. We filed an appeal of the citation in January 2011. In separate September 2013, November 2013 and February 2015 orders, the Board of Industrial Insurance Appeals (“Board”) Judge granted partial summary judgment in our favor rejecting 33 of the original 44 allegations in the citation as lacking legal or evidentiary support. A hearing on the remaining 11 allegations started on July 21, 2015, and we expect the Judge to issue a recommended decision for the Board’s review in late 2015 or early 2016. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution.

On November 20, 2013, we received a notice of violation (“NOV”) from the EPA alleging 46 violations of the Clean Air Act Risk Management Plan requirements at our Washington refinery. The EPA conducted an investigation of the refinery in 2011, following the April 2010 fire in the naphtha hydrotreater unit. We have provided a response to the NOV and additional information to the EPA. While we cannot currently estimate the amount or timing of the resolution of this matter, we believe the outcome will not have a material impact on our liquidity, financial position, or results of operations.

In January 2015, we received notice and demand for indemnity from the previous owner of our Washington refinery for damages incurred in the civil litigation brought by the families of those fatally wounded in the April 2010 refinery fire. We settled our involvement in civil litigation in 2012. Arbitration proceedings were initiated in March 2015 after an unsuccessful mediation and we intend to vigorously defend ourselves against this claim.

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Environmental Liabilities. We are incurring and expect to continue to incur expenses for environmental remediation liabilities at a number of currently and previously owned or operated refining, pipeline, terminal and retail station properties. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Additionally, we have recognized environmental remediation liabilities assumed in past acquisitions from the prior owners that include amounts estimated for site cleanup and monitoring activities arising from operations at refineries, certain terminals and pipelines, and retail stations prior to the dates of our acquisitions. Our environmental accruals are based on estimates including engineering assessments, and it is possible that our projections will change and that additional costs will be recorded as more information becomes available.

Our accruals for environmental expenditures totaled $244 million and $274 million at June 30, 2015 and December 31, 2014, respectively, including $22 million and $32 million for TLLP, respectively. These accruals include $201 million and $216 million at June 30, 2015 and December 31, 2014, respectively, related to amounts estimated for site cleanup activities arising from operations at our Martinez refinery and operations of assets acquired in the Los Angeles Acquisition prior to their respective acquisition dates. We cannot reasonably determine the full extent of remedial activities that may be required at the Martinez refinery and for assets acquired in the Los Angeles Acquisition, and it is possible that we will identify additional investigation and remediation costs for site cleanup activities as more information becomes available. The environmental remediation liabilities assumed in the Los Angeles Acquisition include amounts estimated for site cleanup activities and monitoring activities arising from operations at the Carson refinery, certain terminals and pipelines, and retail stations prior to our acquisition on June 1, 2013. These estimates for environmental liabilities are based on third-party assessments and available information. Our estimates for site cleanup activities reflect amounts for which we are responsible under applicable cost-sharing arrangements.

On July 10, 2015, a federal court issued an order denying coverage pursuant to insurance policies for environmental remediation liabilities at our Martinez refinery and those liabilities are included in our accruals above. The insurer had filed a declaratory relief action challenging coverage of the primary policy assigned to us when we acquired the refinery. The policies provide for coverage up to $190 million for expenditures in excess of $50 million in self-insurance. We have not recognized possible insurance recoveries under the policies and are evaluating appealing the order.

Other Matters

In the ordinary course of business, we become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. Large, and sometimes unspecified, damages or penalties may be sought from us in some matters. We have not established accruals for these matters unless a loss is probable, and the amount of loss is currently estimable.

Environmental. The EPA has alleged that we have violated certain Clean Air Act regulations at our Alaska, Washington, Martinez, North Dakota and Utah refineries. We also retained the responsibility for resolving similar allegations relating to our former Hawaii refinery, which we sold in September 2013. We previously received a NOV in March 2011 from the EPA alleging violations of Title V of the Clean Air Act at our Alaska refinery, which arose from a 2007 state of Alaska inspection and inspections by the EPA in 2008 and 2010. We also previously received NOVs in 2005 and 2008 alleging violations of the Clean Air Act at our Washington refinery. We are continuing discussions of all EPA claims with the EPA and the U.S. Department of Justice. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution. The ultimate resolution of these matters could have a material impact on us, as we may be required to incur material capital expenditures at our operating refineries. However, we do not believe that the final outcome of this matter will have a material impact on our liquidity, results of operations or financial position.

We have investigated conditions at certain active wastewater treatment units at our Martinez refinery pursuant to an order received in 2004 from the San Francisco Bay Regional Water Quality Control Board that named us as well as two previous owners of the Martinez refinery. We cannot currently estimate the amount of the ultimate resolution of the order, but we believe it will not have a material adverse impact on our liquidity, financial position, or results of operations.

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Certain non-governmental organizations filed a Request for Agency Action (the “Request”) with the Utah Department of Environmental Quality (“UDEQ”) concerning our Utah refinery in October 2012. The Request challenges the UDEQ’s permitting of our refinery conversion project alleging that the permits do not conform to the requirements of the Clean Air Act. As the permittee, we are the real party in interest and are defending the permits with UDEQ. In orders issued on July 10 and September 9, 2014, the UDEQ Administrative Law Judge (“ALJ”) recommended the Executive Director of UDEQ deny Petitioners’ request for a stay of the project and dismiss their challenge to the permit. The Executive Director’s final decision approving the ALJ’s recommended order is currently under appeal. While we cannot estimate the timing or estimated amount, if any, associated with the outcome of this matter, we do not believe it will have a material adverse impact on our liquidity, financial position, or results of operations.

In response to incidents in February and March 2014 at our Martinez refinery involving sulfuric acid exposure at the Alkylation Unit the EPA is conducting an investigation to evaluate the Martinez refinery’s compliance with certain federal environmental acts and the Risk Management Plan requirements under the Clean Air Act. While we cannot currently predict the timing and the resolution of this investigation, we believe the outcome will not have a material impact on our liquidity, financial position, or results of operations.

In April 2015, we finalized settlement of citations from the California Department of Industrial Relations (“Cal-OSHA”) alleging violations of the California Labor Code associated with two incidents at our Martinez refinery in February and March 2014. The final resolution of this matter did not have a material impact on our liquidity, financial position, or results of operations.

Tax. We are subject to extensive federal, state and foreign tax laws and regulations. Newly enacted tax laws and regulations, and changes in existing tax laws and regulations, could result in increased expenditures in the future. We are also subject to audits by federal, state and foreign taxing authorities in the normal course of business. It is possible that tax audits could result in claims against us in excess of recorded liabilities. However, we believe that resolution of any such claim(s) would not have a material impact on our liquidity, financial position, or results of operations.

Unrecognized tax benefits increased by approximately $150 million in the second quarter of 2015 for tax positions taken on amended returns filed for 2006-2010. The positions taken exclude certain tax credits, for blending biofuels into refined products, from taxable income. These tax credits were received from the federal government during the years being amended. However, due to the complex and uncertain nature of the issue, we are unable to conclude that it is more likely than not that we will sustain the claims. Therefore, we have neither recognized a tax benefit, nor recorded a receivable for this item.

It is reasonably possible that unrecognized tax benefits may decrease by as much as $8 million in the next twelve months, related primarily to state apportionment matters. However, since the tax was fully paid in prior years, the unrecognized tax benefit would be eliminated without impacting expense.

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IMPORTANT INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q (including information incorporated by reference) includes and references “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements relate to, among other things, expectations regarding refining margins, revenues, cash flows, capital expenditures, turnaround expenses and other financial items. These statements also relate to our business strategy, goals and expectations concerning our market position, future operations, margins and profitability. We have used the words “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “predict,” “project,” “will,” “would” and similar terms and phrases to identify forward-looking statements in this Quarterly Report on Form 10-Q, which speak only as of the date the statements were made.

Although we believe the assumptions upon which these forward-looking statements are based are reasonable, any of these assumptions could prove to be inaccurate and the forward-looking statements based on these assumptions could be incorrect.

The matters discussed in these forward-looking statements are subject to risks, uncertainties and other factors that could cause actual results and trends to differ materially from those made, projected, or implied in or by the forward-looking statements depending on a variety of uncertainties or other factors including, but not limited to:

• the constantly changing margin between the price we pay for crude oil and other refinery feedstocks as well as RINs and carbon credits, and the prices at which we are able to sell refined products;

• the timing and extent of changes in commodity prices and underlying demand for our refined products, natural gas and NGLs;

• changes in the expected value of and benefits derived from acquisitions, including TLLP’s Rockies Natural Gas Business acquisition;

• changes in global economic conditions and the effects of the global economic downturn on our business, especially in California, and the business of our suppliers, customers, business partners and credit lenders;

• the availability and costs of crude oil, other refinery feedstocks and refined products;

• changes in fuel and utility costs for our facilities;

• changes in the cost or availability of third-party vessels, pipelines and other means of transporting crude oil feedstocks and refined products;

• actions of customers and competitors;

• state and federal environmental, economic, health and safety, energy and other policies and regulations, including those related to climate change and any changes therein, and any legal or regulatory investigations, delays or other factors beyond our control;

• regulatory and other requirements concerning the transportation of crude oil, particularly from the Bakken area;

• adverse rulings, judgments, or settlements in litigation or other legal or tax matters, including unexpected environmental remediation costs in excess of any reserves;

• operational hazards inherent in refining operations and in transporting and storing crude oil and refined products;

• earthquakes or other natural disasters affecting operations;

• changes in our cash flow from operations;

• changes in capital requirements or in execution of planned capital projects;

• changes in the carrying costs of our inventory;

• disruptions due to equipment interruption or failure at our facilities or third-party facilities;

• direct or indirect effects on our business resulting from actual or threatened terrorist incidents or acts of war;

• weather conditions affecting our operations or the areas in which our refined products are marketed;

• seasonal variations in demand for refined products;

• risks related to labor relations and workplace safety; and

• political developments.

Many of these factors, as well as other factors, are described in our filings with the Securities and Exchange Commission. All future written and oral forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the previous statements. The forward-looking statements in this Quarterly Report on Form 10-Q speak only as of the date of this Quarterly Report on Form 10-Q. We undertake no obligation to update any information contained herein or to publicly release the results of any revisions to any forward-looking statements that may be made to reflect events or circumstances that occur, or that we become aware of, after the date of this Quarterly Report on Form 10-Q.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Risk Management

We have established a risk committee comprised of senior level leadership from our financial, strategic, governance, administrative and operational functions. The risk committee’s responsibilities include the performance of an annual review to assess and prioritize the Company’s risks in coordination with our subject matter experts, assessment of the status and effectiveness of risk prevention and mitigation activities, identify emerging risks and facilitating management’s development of risk assessment and management practices. The risk committee is also responsible to assess and advise management on the Company’s system of controls to ensure policies and procedures are properly followed and appropriate accountability is present. The Company’s controls are designed to:

• create and maintain a comprehensive risk management policy;

• provide for authorization by the appropriate levels of management;

• provide for segregation of duties;

• maintain an appropriate level of knowledge regarding the execution of and the accounting for derivative instruments; and

• implement key indicators to measure the performance of its hedging activities.

The risk committee meets at least monthly to review priority and emerging risks and risk prevention and mitigation activities. In addition, our risk committee chairman presents a quarterly risk update to executive management and an annual update to our Board concerning the status and effectiveness of our risk prevention and mitigation activities, emerging risks and risk assessment and management practices.

Commodity Price Risks

Our primary source of market risk is the difference between the sale prices for our refined products and the purchase prices for crude oil and other feedstocks. Refined product prices are directly influenced by the price of crude oil. Our earnings and cash flows from operations depend on the margin, relative to fixed and variable expenses (including the costs of crude oil and other feedstocks), at which we are able to sell our refined products. The prices of crude oil and refined products fluctuate substantially and depend on many factors including the global supply and demand for crude oil and refined products. This demand is impacted by changes in the global economy, the level of foreign and domestic production of crude oil and refined products, geo-political conditions, the availability of imports of crude oil and refined products, the relative strength of the U.S. dollar, the marketing of alternative and competing fuels and the impact of government regulations. Our refined product sale prices are also affected by local factors such as local market conditions and the level of operations of other suppliers in our markets.

In most cases, an increase or decrease in the price of crude oil results in a corresponding increase or decrease in the price of gasoline and other refined products. The timing, direction and the overall change in refined product prices versus crude oil prices could have a significant impact on our profit margins, earnings and cash flows. Assuming all other factors remained constant, a $1 per barrel change in average gross refining margins, based on our quarter-to-date average throughput of 783 Mbpd, would change annualized pre-tax operating income by approximately $290 million. This analysis may differ from actual results.

We maintain inventories of crude oil, intermediate products and refined products, the values of which are subject to fluctuations in market prices. Our inventories of refinery feedstocks and refined products totaled 41 million barrels and 42 million barrels at June 30, 2015 and December 31, 2014, respectively. The average cost of our refinery feedstocks and refined products at June 30, 2015, was approximately $60 per barrel compared to market prices of approximately $75 per barrel.

We use non-trading derivative instruments to manage exposure to commodity price risks associated with the purchase or sale of crude oil and finished products and inventories above or below our target levels. We also use these instruments to manage the impact of market volatility and arbitrage opportunities for crude oil where the price of crude oil is higher in the future than the current spot price. For the purchase or sale of crude oil and finished products to be used in our normal operations, we may enter into physical commodity forward purchase and sale contracts (“Forward Contracts”), which are not typically classified and reported as derivatives for accounting purposes. The gains or losses associated with these Forward Contracts are recognized as incurred in our financial statements separate from the gains or losses associated with other derivative instruments reported below and in Note 6 to our financial statements in Part 1 Item 1.

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Also, we may enter into derivative contracts such as exchange-traded futures, over-the-counter swaps, options and over-the-counter options, most of which had remaining durations of less than one year as of June 30, 2015, to economically hedge price risk associated with our physical commodity Forward Contracts or to take advantage of other market opportunities. We mark-to-market these derivative instruments each period during the contract term, which can create timing differences for gain or loss recognition in our financial statements. The derivative gains or losses presented below do not reflect the realized losses or gains, respectively, from the settlement of our physical commodity transactions. Both the derivative and the physical commodity Forward Contracts’ gains and losses are reflected in our gross refining margin in the refining segment. We evaluate our performance based on all contract types available to manage our risk, which includes contracts that may or may not be classified and reported as derivatives for accounting purposes.

We believe the governance structure that we have in place is adequate given the size and sophistication of our commodity optimization, inventory management and trading activities. Our governance over commodity activities includes regular monitoring of the performance of our risk management strategies and limits over dollar and volume based transactional authority, commodity position, aggregate spread, stop-loss and value-at-risk. Performance against our strategies and authorized limits is monitored daily via position reports and profit and loss analysis and is reviewed on a regular basis, at least monthly, by our risk committee.

Net earnings during the second quarters of 2015 and 2014 each included a net loss of $76 million on our commodity derivative positions comprised of the following (in millions):

	Net Gain (Loss)
	Three Months Ended June 30,
	2015			2014
Unrealized gain (loss) carried on open derivative positions from prior period	$	(38	)	$	16
Realized loss on settled derivative positions	(25		)	(78		)
Unrealized loss on open net derivative positions	(13		)	(14		)
Net Loss	$	(76	)	$	(76	)

Our open derivative positions at June 30, 2015, will expire at various times through 2017. We prepared a sensitivity analysis to estimate our exposure to market risk associated with our derivative instruments. This analysis may differ from actual results. Based on our open net positions at June 30, 2015, a 1% change in quoted market prices of our derivative instruments, assuming all other factors remain constant, could change the fair value of our derivative instruments and pre-tax operating income by approximately $4 million.

Counterparty Credit Risk

We have exposure to concentrations of credit risk related to the ability of our counterparties to meet their contractual payment obligations, and the potential non-performance of counterparties to deliver contracted commodities or services at the contracted price. Customer concentrations within the refining industry may affect our overall exposure to counterparty risk because these customers may be similarly impacted by changes in economic or other conditions. In addition, financial services companies are the counterparties in certain of our price risk management activities, and such financial services companies could be adversely impacted by periods of uncertainty and illiquidity in the credit or capital markets. We have credit management processes in place by which we closely monitor the status of our counterparties by performing ongoing credit evaluations of their financial condition. In certain circumstances, we require prepayments, letters of credit or other credit enhancement.

Interest Rate Risk

Our use of fixed or variable-rate debt directly exposes us to interest rate risk. Fixed rate debt, such as our senior notes, exposes us to changes in the fair value of our debt due to changes in market interest rates. Fixed rate debt also exposes us to the risk that we may need to refinance maturing debt with new debt at higher rates, or that we may be obligated to pay rates higher than the current market. Variable-rate debt, such as borrowings under our Revolving Credit Facility or Term Loan Facility, exposes us to short-term changes in market rates that impact our interest expense. The carrying values of our debt were approximately $4.3 billion at both June 30, 2015 and December 31, 2014, and the fair values of our debt were approximately $4.4 billion and $4.3 billion at June 30, 2015 and December 31, 2014, respectively. These carrying and fair values of our debt do not include the unamortized issuance costs associated with our total debt.

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We currently do not use interest rate swaps to manage our exposure to interest rate risk; however, we continue to monitor the market and our exposure, and in the future, we may enter into these transactions to mitigate risk. We believe in the short-term we have acceptable interest rate risk and continue to monitor the risk on our long-term obligations. With all other variables constant, a 0.25% change in the interest rate associated with the borrowings outstanding under our Term Loan Facility at June 30, 2015 would change annual interest expense by approximately $2 million. There were no borrowings outstanding under the Revolving Credit Facility and $299 million borrowings outstanding under the TLLP Revolving Credit Facility as of June 30, 2015.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

Our disclosure controls and procedures are designed to provide reasonable assurance that the information that we are required to disclose in reports we file under the Securities Exchange Act of 1934, as amended (“the Exchange Act”), is accumulated and appropriately communicated to management. There have been no significant changes in our internal controls over financial reporting (as defined by applicable Securities and Exchange Commission rules) during the quarter ended June 30, 2015 that have materially affected or are reasonably likely to materially affect these controls.

We carried out an evaluation required by Rule 13a-15(b) of the Exchange Act, under the supervision and with the participation of our management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures at the end of the reporting period. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures are effective.

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PART II — OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

In the ordinary course of business, we become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. Large, and sometimes unspecified, damages or penalties may be sought from us in some matters and certain matters may require years to resolve. Although we cannot provide assurance, we believe that an adverse resolution of the matters described below, except as may be specifically disclosed, will not have a material adverse impact on our liquidity, financial position, or results of operations.

Washington Refinery Fire. The naphtha hydrotreater unit at our Washington refinery was involved in a fire in April 2010, which fatally injured seven employees and rendered the unit inoperable. The Washington State Department of Labor & Industries (“L&I”) initiated an investigation of the incident. L&I completed its investigation in October 2010, issued a citation and assessed a $2.4 million fine, which we appealed. L&I reassumed jurisdiction of the citation and affirmed the allegations in December 2010. We disagree with L&I’s characterizations of operations at our Washington refinery and believe, based on available evidence and scientific reviews, that many of the agency’s conclusions are mistaken. We filed an appeal of the citation in January 2011. In separate September 2013, November 2013 and February 2015 orders, the Board of Industrial Insurance Appeals (“BIIA”) Judge granted partial summary judgment in our favor rejecting 33 of the original 44 allegations in the citation as lacking legal or evidentiary support. A hearing on the remaining 11 allegations started on July 21, 2015, and we expect the Judge to issue a recommended decision for the BIIA’s review in late 2015 or early 2016. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution.

In January 2015, we received notice and demand for indemnity from the previous owner of our Washington refinery for damages incurred in the civil litigation brought by the families of those fatally wounded in the April 2010 refinery fire. We settled our involvement in civil litigation in 2012. Arbitration proceedings were initiated in March 2015 after an unsuccessful mediation and we intend to vigorously defend ourselves against this claim.

In July 2015, we agreed to settle four notices of violations (“NOV”) we received from the Bay Area Air Quality Management District (the “BAAQMD”) in May through September 2013. The allegations concern hydrocarbon emissions from a process water drain system at our Martinez refinery. The final resolution of this matter will not have a material impact on our liquidity, financial position or results of operations.

On October 30, 2014, we received an offer to settle 36 NOVs received from the BAAQMD. The NOVs were issued from March 2012 to October 2013 and allege violations of air quality regulations at our Martinez refinery. While we actively discussing a settlement of the allegations with BAAQMD, we cannot currently estimate the amount or timing of the resolution of this matter.

On June 10, 2015, we agreed to settle a NOV previously received in January 2014 from the Alaska Department of Environmental Conservation (“ADEC”). ADEC alleged that we violated emission limits in 7 process heaters at our Kenai refinery. The resolution of this matter will not have a material impact on our liquidity, financial position or results of operations.

ITEM 1A. RISK FACTORS

There have been no significant changes from the risk factors previously disclosed in Item 1A of our 2014 Annual Report on Form 10-K.

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ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The table below provides a summary of all purchases by Tesoro Corporation of its common stock during the three-month period ended June 30, 2015.

Period	Total Number of Shares Purchased (a)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (b)	Approximate Dollar Value of Shares that May Yet Be Purchased Remaining at Period End Under the Plans or Programs (In Millions) (b)
April 2015	50,421	$	90.51	—	$	981
May 2015	1,108,759	$	90.23	1,108,443	$	881
June 2015	1,752,562	$	85.64	1,751,829	$	731
Total	2,911,742			2,860,272

________________

(a) Includes 51,470 shares acquired from employees during the second quarter of 2015 to satisfy tax withholding obligations in connection with the vesting of performance share awards, market stock units and restricted stock issued to them.

(b) Our Board of Directors authorized a $1.0 billion share repurchase program in July 2014. Under the program, management is permitted to purchase Tesoro common stock at its discretion in the open market. The authorization has no time limit and may be suspended or discontinued at any time.

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ITEM 5. OTHER INFORMATION

Amendment No. 2 to the Third Amended and Restated Omnibus Agreement

As a result of the termination of the QEPM Omnibus Agreement on August 3, 2015, Tesoro, TRMC, Tesoro Companies, Inc., Tesoro Alaska Company LLC, TLLP and TLGP entered into an amendment to the Third Amended and Restated Omnibus Agreement. The amendment, effective July 1, 2015, increases the annual administrative fee payable by TLLP to Tesoro by $3.6 million as a result of the merger of TLLP and QEPM and the termination of the QEPM Omnibus Agreement. The annual increase accounts for the additional fixed costs and expenses related to the administration of the assets of QEPM and its subsidiaries that was previously payable under the QEPM Omnibus Agreement.

ITEM 6. EXHIBITS

(a) Exhibits

Exhibit Number	Description of Exhibit
*4.1	Second Supplemental Indenture, dated as of May 21, 2015, among TLLP Merger Sub LLC, Tesoro Logistics LP, Tesoro Logistics Finance Corp., the guarantors named therein and U.S. Bank National Association, as trustee, relating to the 5.50% Senior Notes due 2019 and the 6.25% Senior Notes due 2022.
*4.2	Fourth Supplemental Indenture, dated as of May 21, 2015, among TLLP Merger Sub LLC, Tesoro Logistics LP, Tesoro Logistics Finance Corp., the guarantors named therein and U.S. Bank National Association, as trustee, relating to the 6.125% Senior Notes due 2021.
*4.3	Sixth Supplemental Indenture, dated as of May 21, 2015, among TLLP Merger Sub LLC, Tesoro Logistics LP, Tesoro Logistics Finance Corp., the guarantors named therein and U.S. Bank National Association, as trustee, relating to the 5.875% Senior Notes due 2020.
#10.1	Tesoro Corporation Non-Employee Director Compensation Program (incorporated by reference herein to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2015, File No. 1-3473).
*10.2	Amendment No. 2 to the Third Amended and Restated Omnibus Agreement, dated as of August 3, 2015, among Tesoro Corporation, Tesoro Refining & Marketing Company LLC, Tesoro Companies, Inc., Tesoro Alaska Company LLC, Tesoro Logistics LP and Tesoro Logistics GP, LLC.
*31.1	Certification by Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
*31.2	Certification by Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
*32.1	Certification by Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
*32.2	Certification by Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
**101.INS	XBRL Instance Document
**101.SCH	XBRL Taxonomy Extension Schema Document
**101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
**101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
**101.LAB	XBRL Taxonomy Extension Label Linkbase Document
**101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

________________

* Filed herewith.

** Submitted electronically herewith.

# Compensatory plan or arrangement.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		TESORO CORPORATION
Date:	August 6, 2015	/s/ GREGORY J. GOFF
		Gregory J. Goff
		President and Chief Executive Officer
		(Principal Executive Officer)
Date:	August 6, 2015	/s/ STEVEN M. STERIN
		Steven M. Sterin
		Executive Vice President and Chief Financial Officer
		(Principal Financial Officer)

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EX-4.1

Exhibit 4.1

SECOND SUPPLEMENTAL INDENTURE

SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of May 21, 2015, among TLLP Merger Sub LLC (the “Guaranteeing Subsidiary”), Tesoro Logistics LP, a Delaware limited partnership (“TLLP”), Tesoro Logistics Finance Corp., a Delaware corporation (together with TLLP, the “Issuers”), and U.S. Bank National Association, as trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Issuers have heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of October 29, 2014 providing for the issuance of 5.50 % Senior Notes due 2019 (the “2019 Notes”) and the 6. 25% Senior Notes due 2022 (the “2022 Notes” and, together with the 2019 Notes, the “Notes”);

WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Issuers’ Obligations under the Notes and the Indenture on the terms and conditions set forth herein (the “Note Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

l. CAPITALIZED TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. AGREEMENT TO GUARANTEE. Each Guaranteeing Subsidiary acknowledges that it has received and reviewed a copy of the Indenture and all other documents it deems necessary to review in order to enter into this Supplemental Indenture, and acknowledges and agrees to (i) join and become a party to the Indenture as indicated by its signature below; (ii) be bound by the Indenture, as of the date hereof, as if made by, and with respect to, each signatory hereto; and (iii) perform all obligations and duties required of a Guarantor pursuant to the Indenture. Each Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Indenture, including, but not limited to, Article 10 thereof.

3. EXECUTION AND DELIVERY. The Guaranteeing Subsidiary agrees that the Guarantee shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantees on the Notes.

4. NO RECOURSE AGAINST OTHERS. No past, present or future director, officer, employee, incorporator, stockholder or agent of the Guaranteeing Subsidiary, as such, shall have any liability for any obligations of the Issuers or any Guaranteeing Subsidiary under the Notes, any Note Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes.

5. NEW YORK LAW TO GOVERN. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE.

6. COUNTERPARTS. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. This Supplemental Indenture may be executed in multiple counterparts which, when taken together, shall constitute one instrument. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmissions shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

7. EFFECT OF HEADINGS. The Section headings herein are for convenience only and shall not affect the construction hereof.

8. THE TRUSTEE. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by each Guaranteeing Subsidiary and the Issuers.

9. BENEFITS ACKNOWLEDGED. The Guaranteeing Subsidiary’s Guarantee is subject to the terms and conditions set forth in the Indenture. The Guaranteeing Subsidiary acknowledge that they will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made by it pursuant to the Note Guarantees are knowingly made in contemplation of such benefits.

10. SUCCESSORS. All agreements of the Guaranteeing Subsidiary in this Supplemental Indenture shall bind its Successors, except as otherwise provided in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first above written.

GUARANTEEING SUBSIDIARY:

TLLP Merger Sub LLC

By:    /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

QEP MIDSTREAM PARTNERS, LP

By:    QEP Midstream Partners GP, LLC,

Its general partner

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

ISSUERS:

TESORO LOGISTICS LP

By:     Tesoro Logistics GP, LLP, its general partner

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

TESORO LOGISTICS FINANCE CORP.

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

TRUSTEE:

U.S. BANK NATIONAL ASSOCIATION, as Trustee

By:    /s/JAMES KOWALSKI

Name:    James Kowalski

Title:    Vice President

EX-4.2

Exhibit 4.2

FOURTH SUPPLEMENTAL INDENTURE

SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of May 21, 2015, among TLLP Merger Sub LLC (the “Guaranteeing Subsidiary”), Tesoro Logistics LP, a Delaware limited partnership (“TLLP”), Tesoro Logistics Finance Corp., a Delaware corporation (together with TLLP, the “Issuers”), and U.S. Bank National Association, as trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Issuers have heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of August 1, 2013 providing for the issuance of 6.125% Senior Notes due 2021 (the “Notes”);

WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Issuers’ Obligations under the Notes and the Indenture on the terms and conditions set forth herein (the “Note Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

l. CAPITALIZED TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. AGREEMENT TO GUARANTEE. Each Guaranteeing Subsidiary acknowledges that it has received and reviewed a copy of the Indenture and all other documents it deems necessary to review in order to enter into this Supplemental Indenture, and acknowledges and agrees to (i) join and become a party to the Indenture as indicated by its signature below; (ii) be bound by the Indenture, as of the date hereof, as if made by, and with respect to, each signatory hereto; and (iii) perform all obligations and duties required of a Guarantor pursuant to the Indenture. Each Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Indenture, including, but not limited to, Article 10 thereof.

3. EXECUTION AND DELIVERY. The Guaranteeing Subsidiary agrees that the Guarantee shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantees on the Notes.

4. NO RECOURSE AGAINST OTHERS. No past, present or future director, officer, employee, incorporator, stockholder or agent of the Guaranteeing Subsidiary, as such, shall have any liability for any obligations of the Issuers or any Guaranteeing Subsidiary under the Notes, any Note Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes.

5. NEW YORK LAW TO GOVERN. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE.

6. COUNTERPARTS. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. This Supplemental Indenture may be executed in multiple counterparts which, when taken together, shall constitute one instrument. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmissions shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

7. EFFECT OF HEADINGS. The Section headings herein are for convenience only and shall not affect the construction hereof.

8. THE TRUSTEE. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by each Guaranteeing Subsidiary and the Issuers.

9. BENEFITS ACKNOWLEDGED. The Guaranteeing Subsidiary’s Guarantee is subject to the terms and conditions set forth in the Indenture. The Guaranteeing Subsidiary acknowledge that they will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made by it pursuant to the Note Guarantees are knowingly made in contemplation of such benefits.

10. SUCCESSORS. All agreements of the Guaranteeing Subsidiary in this Supplemental Indenture shall bind its Successors, except as otherwise provided in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first above written.

GUARANTEEING SUBSIDIARY:

TLLP Merger Sub LLC

By:    /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

QEP MIDSTREAM PARTNERS, LP

By:    QEP Midstream Partners GP, LLC,

Its general partner

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

ISSUERS:

TESORO LOGISTICS LP

By:     Tesoro Logistics GP, LLP, its general partner

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

TESORO LOGISTICS FINANCE CORP.

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

TRUSTEE:

U.S. BANK NATIONAL ASSOCIATION, as Trustee

By:    /s/JAMES KOWALSI

Name:    James Kowalski

Title:    Vice President

EX-4.3

Exhibit 4.3

SIXTH SUPPLEMENTAL INDENTURE

SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of May 21, 2015, among TLLP Merger Sub LLC (the “Guaranteeing Subsidiary”), Tesoro Logistics LP, a Delaware limited partnership (“TLLP”), Tesoro Logistics Finance Corp., a Delaware corporation (together with TLLP, the “Issuers”), and U.S. Bank National Association, as trustee under the Indenture referred to below (the “Trustee”).

W I T N E S S E T H

WHEREAS, the Issuers have heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of September 14, 2012 providing for the issuance of 5.875% Senior Notes due 2020 (the “Notes”);

WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Issuers’ Obligations under the Notes and the Indenture on the terms and conditions set forth herein (the “Note Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

l. CAPITALIZED TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. AGREEMENT TO GUARANTEE. Each Guaranteeing Subsidiary acknowledges that it has received and reviewed a copy of the Indenture and all other documents it deems necessary to review in order to enter into this Supplemental Indenture, and acknowledges and agrees to (i) join and become a party to the Indenture as indicated by its signature below; (ii) be bound by the Indenture, as of the date hereof, as if made by, and with respect to, each signatory hereto; and (iii) perform all obligations and duties required of a Guarantor pursuant to the Indenture. Each Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Indenture, including, but not limited to, Article 10 thereof.

3. EXECUTION AND DELIVERY. The Guaranteeing Subsidiary agrees that the Guarantee shall remain in full force and effect notwithstanding the absence of the endorsement of any notation of such Guarantees on the Notes.

4. NO RECOURSE AGAINST OTHERS. No past, present or future director, officer, employee, incorporator, stockholder or agent of the Guaranteeing Subsidiary, as such, shall have any liability for any obligations of the Issuers or any Guaranteeing Subsidiary under the Notes, any Note Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes.

5. NEW YORK LAW TO GOVERN. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE.

6. COUNTERPARTS. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. This Supplemental Indenture may be executed in multiple counterparts which, when taken together, shall constitute one instrument. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmissions shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

7. EFFECT OF HEADINGS. The Section headings herein are for convenience only and shall not affect the construction hereof.

8. THE TRUSTEE. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by each Guaranteeing Subsidiary and the Issuers.

9. BENEFITS ACKNOWLEDGED. The Guaranteeing Subsidiary’s Guarantee is subject to the terms and conditions set forth in the Indenture. The Guaranteeing Subsidiary acknowledge that they will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and that the guarantee and waivers made by it pursuant to the Note Guarantees are knowingly made in contemplation of such benefits.

10. SUCCESSORS. All agreements of the Guaranteeing Subsidiary in this Supplemental Indenture shall bind its Successors, except as otherwise provided in this Supplemental Indenture. All agreements of the Trustee in this Supplemental Indenture shall bind its successors.

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first above written.

GUARANTEEING SUBSIDIARY:

TLLP Merger Sub LLC

By:    /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

QEP MIDSTREAM PARTNERS, LP

By:    QEP Midstream Partners GP, LLC,

Its general partner

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

ISSUERS:

TESORO LOGISTICS LP

By:     Tesoro Logistics GP, LLP, its general partner

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

TESORO LOGISTICS FINANCE CORP.

By:     /s/PHILLIP M. ANDERSON

Name: Phillip M. Anderson

Title: President

TRUSTEE:

U.S. BANK NATIONAL ASSOCIATION, as Trustee

By:    /s/JAMES KOWALSKI

Name:    James Kowalski

Title:    Vice President

EX-10.2

Exhibit 10.2

AMENDMENT NO.2 TO THE THIRD AMENDED AND RESTATED OMNIBUS

AGREEMENT

THIS AMENDMENT NO. 2 TO THE THIRD AMENDED AND RESTATED OMNIBUS AGREEMENT (the "Amendment No. 2"), is entered into and executed on August 3, 2015, and effective as of July 1, 2015 (the "Amendment No. 2 Effective Date"), among Tesoro Corporation, a Delaware corporation ("Tesoro"), on behalf of itself and the other Tesoro Entities (as defined in the Third Omnibus Agreement, defined below), Tesoro Refining & Marketing Company LLC, a Delaware limited liability company ("TRMC'), Tesoro Companies, Inc., a Delaware corporation, Tesoro Alaska Company LLC, a Delaware limited liability ("Tesoro Alaska"), Tesoro Logistics LP, a Delaware limited partnership (the "Partnership"), and Tesoro Logistics GP, LLC, a Delaware limited liability company (the "General Partner"). The above-named entities are sometimes referred to in this Amendment No. 2 as "Party" and collectively as the "Parties".

RECITALS

WHEREAS, the Parties executed that certain Third Amended and Restated Omnibus Agreement dated as of July 1, 2014 (the "Third Omnibus Agreement");

WHEREAS, effective as of July 22, 2015 (the "Merger Date"), QEP Midstream Partners, LP, a Delaware limited partnership ("QEPM'), merged into a wholly owned subsidiary of the Partnership, and ceased to be a publicly traded entity (the "Merger");

WHEREAS, QEPM, QEP Midstream Partners GP, LLC, a Delaware limited liability company and the general partner of QEPM ("QEPM GP'), QEP Midstream Partners Operating, LLC, a Delaware limited liability company and wholly owned subsidiary of QEPM (the "Operating Company"), the Partnership, and the General Partner, had previously entered into that certain First Amended and Restated Omnibus Agreement, dated as of December 2, 2014 (the "QEPM Omnibus Agreement"), which governed the provision of certain services to QEPM and its subsidiaries;

WHEREAS, the Partnership and General Partner entered into that certain QEPM Omnibus Side Agreement (the "SideAgreement"), dated as of February 11, 2015, pursuant to which the administrative fees paid to the General Partner pursuant to the QEPM Omnibus Agreement were clarified;

WHEREAS, in connection with the Merger and effective August 3, 2015, QEPM, QEPM GP, the Operating Company, the Partnership and the General Partner entered into that certain Termination Agreement which terminated the QEPM Omnibus Agreement and the related Side Agreement;

WHEREAS, prior to termination of the QEPM Omnibus Agreement, QEPM was paying a fixed monthly amount as an administrative service fee to Tesoro through the General Partner;

WHEREAS, approximately $300,000.00 per month of the fixed monthly administrative service fee QEPM was paying to Tesoro was due to additional fixed costs and expenses related to the administration of the additional assets of QEPM and its subsidiaries;

WHEREAS, upon termination of the QEPM Omnibus Agreement, Tesoro will no longer be compensated for such fixed monthly costs QEPM was paying as an administrative service fee to Tesoro through the General Partner;

WHEREAS, in connection with the Merger, the Parties wish to amend the Third Omnibus Agreement to increase the Partnership's fixed monthly administrative fee by $300,000.00 to account for the loss of such amount that was previously payable under the QEPM omnibus to cover the administration of the assets ofQEPM and its subsidiaries;

NOW, THEREFORE, in consideration of the premises, and the covenants, conditions and agreements contained herein and in the Third Omnibus Agreement, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree as follows:

1.The Recitals are incorporated into the Third Omnibus Agreement and any capitalized terms not otherwise defined herein shall have the meanings set forth in the Third Omnibus Agreement.

2.As of the Amendment No.2 Effective Date, the monthly administrative fee is hereby increased to $775,000.000, and Schedule VIII, Administrative Fee and Indemnification Deductibles, is hereby amended and restated in its entirety, as attached hereto at as Attachment 1.

3.Other than as set forth above, the Third Omnibus Agreement, as amended, shall remain in full force and effect as written.

4.This Amendment No. 2 shall be governed by and shall be construed m accordance with the laws of the State ofTexas.

5.This Amendment No.2 may be executed in any number of counterparts with the same effect as if all signatory parties had signed the same document. All counterparts shall be construed together and shall constitute one and the same instrument. Delivery of an executed signature page of this Amendment No. 2 by facsimile transmission or in portable

2

document format (.pdf) shall be effective as delivery of a manually executed counterpart hereof.

6.This Amendment No. 2 shall be binding upon and shall inure to the benefit of the parties hereto, their respective heirs, legal representatives, successors, and assigns.

7.Should any clause, sentence, paragraph, subsection or section of this Amendment No. 2 be judicially declared to be invalid, unenforceable or void, such decision will not have the effect of invalidating or voiding the remainder of this Amendment No. 2, and the part or parts of this Amendment No. 2 so held to be invalid, unenforceable or void will be deemed to have been stricken herefrom, and the remainder will have the same force and effectiveness as if such stricken part or parts had never been included herein.

8.This Amendment No.2 sets forth all of the covenants, agreements, conditions, understandings, warranties and representations of the Parties relative to the subject matter hereof, and any previous agreement among such parties with respect to the subject matter hereof is superseded by this Amendment No.2.

[Signature Page Follows]

3

IN WITNESS WHEREOF, the Parties have executed and delivered this Amendment No . 2 effective as of the date first written above.

TESORO CORPORATION
By:	/s/ GREGORY J. GOFF
	Gregory J. Goff
	Chairman, President and Chief Executive Officer

TESORO REFINING & MARKETING COMPANY LLC
By:	/s/ GREGORY J. GOFF
	Gregory J. Goff
	Chairman of the Board of Managers and President

TESORO COMPANIES, INC.
By:	/s/ GREGORY J. GOFF
	Gregory J. Goff
	Chairman of the Board of Directors and President

TESORO ALASKA COMPANY LLC
By:	/s/ GREGORY J. GOFF
	Gregory J. Goff
	Chairman of the Board of Directors and President

TESORO LOGISTICS LP
By:	Tesoro Logistics GP, LLC, its
	general partner
By:	/s/ PHILLIP M. ANDERSON
	Phillip M. Anderson
	President

TESORO LOGISTICS GP, LLC
By:	/s/ PHILLIP M. ANDERSON
	Phillip M. Anderson
	President

Signature Page 2 to Amendment No. 2 to

Third Amended and Restated Omnibus Agreement

Attachment 1

[see attached]

Schedule VIII

Administrative Fee and Indemnification Deductibles

Monthly Administrative Fee

$775,000.00

Annual Environmental Deductible

$600,000

Annual ROW Deductible

$600,000

Page 1 of 1 of

Schedule VIII to Third Amended and Restated Omnibus Agreement

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Gregory J. Goff, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Tesoro Corporation;

2. Based on my knowledge, this quarterly 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 quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly 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 15(d)-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 quarterly report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal controls 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 quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and

(d) Disclosed in this quarterly 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 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:	August 6, 2015	/s/ GREGORY J. GOFF
		Gregory J. Goff
		Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Steven M. Sterin, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Tesoro Corporation;

2. Based on my knowledge, this quarterly 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 quarterly report;

3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly 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 15(d)-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 quarterly report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal controls 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 quarterly report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and

(d) Disclosed in this quarterly 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 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:	August 6, 2015	/s/ STEVEN M. STERIN
		Steven M. Sterin
		Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Tesoro Corporation (the “Company”) on Form 10-Q for the period ended June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gregory J. Goff, 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, that:

(1) The Report fully complies with the requirements of section 13(a) or 15 (d) 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.

/s/ GREGORY J. GOFF

Gregory J. Goff

Chief Executive Officer

August 6, 2015

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Tesoro Corporation (the “Company”) on Form 10-Q for the period ended June 30, 2015 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Steven M. Sterin, 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, that:

(1) The Report fully complies with the requirements of section 13(a) or 15 (d) 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.

/s/ STEVEN M. STERIN

Steven M. Sterin

Chief Financial Officer

August 6, 2015

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Tesoro Logistics LP Tesoro Logistics LP, Ownership Interest (Details) $ in Millions				6 Months Ended	12 Months Ended
	Jul. 22, 2015 shares	Apr. 06, 2015	Dec. 02, 2014 shares	Jun. 30, 2015 USD ($) mi pipelines terminals system facility shares	Dec. 31, 2014
Variable Interest Entity
Percentage ownership of Tesoro Logistics LP				36.00%	36.00%
Limited partner common units outstanding (units)				28,181,748
Merger agreement date		Apr. 06, 2015
Limited Partnership interests Common Units, Conversion Ratio		0.3088
TLGP
Variable Interest Entity
General Partner, Ownership Interest				2.00%	2.00%
General partner units outstanding (units)				1,631,448
Gas Processing Complexes | TLLP
Variable Interest Entity
Number of assets (assets) | facility				4
Fractionation Facility | TLLP
Variable Interest Entity
Number of assets (assets) | facility				1
Refined Products Pipeline | TLLP
Variable Interest Entity
Number of assets (assets) | pipelines				1
Crude Oil Gathering System | TLLP
Variable Interest Entity
Number of assets (assets) | system				1
Crude Oil and Refined Products Terminals and Storage Facilities | TLLP
Variable Interest Entity
Number of assets (assets) | terminals				24
Marine Terminals | TLLP
Variable Interest Entity
Number of assets (assets) | terminals				4
Pipeline Transportation of Refined Petroleum Products and Crude Oil | TLLP
Variable Interest Entity
Number of miles (miles) | mi				130
Regulated Common Carrier Products Pipeline | TLLP
Variable Interest Entity
Number of assets (assets) | pipelines				1
Jet Fuel Pipeline | TLLP
Variable Interest Entity
Number of assets (assets) | pipelines				1
Rail Car Unloading Facility | TLLP
Variable Interest Entity
Number of assets (assets) | facility				1
Petroleum Coke Handling and Storage Facility | TLLP
Variable Interest Entity
Number of assets (assets) | facility				1
Rockies Natural Gas Business
Variable Interest Entity
Limited partner common units outstanding (units)			3,701,750
Effective date of acquisition			Dec. 02, 2014
Purchase price | $				$ 2,516
Subordinated units outstanding (units)			26,705,000
QEP Field Services, LLC
Variable Interest Entity
General Partner, Ownership Interest			100.00%
Limited Partner, Ownership Interest			56.00%
QEP Midstream Partners GP, LLC
Variable Interest Entity
General Partner, Ownership Interest			2.00%
Subsequent Event
Variable Interest Entity
Effective date of merger completion	Jul. 22, 2015
TLLP Common units issued to QEPM unitholders	7,100,000

XML

Debt Tesoro Debt (Details) - USD ($)		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014
Line of Credit Facility
Repayments of borrowings		$ 223,000,000	$ 0
Amount borrowed		299,000,000
Total capacity		5,935,000,000
Term Loan Facility
Line of Credit Facility
Maximum available capacity		$ 500,000,000
Maturity date		May 30, 2016
Repayments of borrowings		$ 0
Interest rate		2.44%
Total capacity		$ 398,000,000
Expenses and Fees
Commitment Fee (unused portion)	[1]	0.00%
Line of credit facility, collateral		The obligations under the Term Loan Facility are secured by all equity interests of Tesoro Refining & Marketing Company LLC and Tesoro Alaska Company LLC, the Tesoro and USA Gasoline trademarks and those trademarks containing the name “ARCO” acquired in the Los Angeles Acquisition, and junior liens on certain assets.
30 day Eurodollar (LIBOR) Rate | Term Loan Facility
Expenses and Fees
Eurodollar or Base Rate	[1]	0.19%
Eurodollar or Base Rate Margin	[1]	2.25%
Base Rate | Term Loan Facility
Expenses and Fees
Eurodollar or Base Rate	[1]	3.25%
Eurodollar or Base Rate Margin	[1]	1.25%

[1] We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing.

XML

Derivative Instruments, Derivative Assets and Liabilities (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Derivatives, Fair Value
Gross derivative assets		$ 392	$ 1,204
Gross derivative liabilities		405	1,027
Derivative asset amount offset against collateral and netting arrangements	[1],[2]	(327)	(1,136)
Derivative liability amount offset against collateral and netting arrangements	[1],[2]	(386)	(1,024)
Net derivative assets		65	68
Net derivative liabilities		19	3
Derivative, Collateral
Cash collateral outstanding		59
Counterparty cash collateral			(112)
Commodity Futures Contracts | Prepayments and other current assets
Derivatives, Fair Value
Gross derivative assets		388	1,201
Gross derivative liabilities		403	1,025
Commodity OTC Swap Contracts | Receivables
Derivatives, Fair Value
Gross derivative assets		3	0
Gross derivative liabilities		0	0
Commodity OTC Swap Contracts | Accounts payable
Derivatives, Fair Value
Gross derivative assets		0	0
Gross derivative liabilities		1	1
Commodity Forward Contracts | Receivables
Derivatives, Fair Value
Gross derivative assets		1	3
Gross derivative liabilities		0	0
Commodity Forward Contracts | Accounts payable
Derivatives, Fair Value
Gross derivative assets		0	0
Gross derivative liabilities		$ 1	$ 1

[1] As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions. Cash collateral amounts are netted with mark-to-market derivative assets.

[2] Certain of our derivative contracts, under master netting arrangements, include both asset and liability positions. We offset both the fair value amounts and any related cash collateral amounts recognized for multiple derivative instruments executed with the same counterparty when there is a legally enforceable right and an intention to settle net or simultaneously. As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions.

XML

Benefit Plans (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($) pension_plans plans	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) pension_plans plans	Jun. 30, 2014 USD ($)
Pension Benefits
General Discussion of Pension Plan
Number of defined benefit plans sponsored (plans) | plans	4		4
Pension Contributions
Employer contributions to employee retirement plan			$ 30
Components of Net Periodic Benefit Expense and Other Postretirement Expense (Income):
Service cost	$ 11	$ 13	23	$ 26
Interest cost	7	8	15	17
Expected return on plan assets	(6)	(7)	(13)	(15)
Amortization of prior service cost (credit)	0	1	0	1
Recognized net actuarial loss	6	3	12	7
Net Periodic Benefit Expense (Income)	18	18	37	36
Other Postretirement Benefits
Components of Net Periodic Benefit Expense and Other Postretirement Expense (Income):
Service cost	1	1	2	2
Interest cost	0	0	1	1
Amortization of prior service cost (credit)	(8)	(8)	(17)	(17)
Recognized net actuarial loss	1	2	2	3
Net Periodic Benefit Expense (Income)	$ (6)	$ (5)	$ (12)	$ (11)
Funded Qualified Employee Retirement Plan
General Discussion of Pension Plan
Number of defined benefit plans sponsored (plans) | pension_plans	1		1
Unfunded Nonqualified Executive Plan
General Discussion of Pension Plan
Number of defined benefit plans sponsored (plans) | pension_plans	3		3

XML

Property, Plant and Equipment (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Property Plant and Equipment, at cost
Property, plant and equipment, at cost	$ 12,093	$ 11,633
Accumulated depreciation	(2,799)	(2,588)
Net property, plant and equipment	9,294	9,045
Refining
Property Plant and Equipment, at cost
Property, plant and equipment, at cost	7,302	6,994
TLLP
Property Plant and Equipment, at cost
Property, plant and equipment, at cost	3,694	3,551
Marketing
Property Plant and Equipment, at cost
Property, plant and equipment, at cost	841	834
Corporate
Property Plant and Equipment, at cost
Property, plant and equipment, at cost	$ 256	$ 254

XML

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

Share-based Compensation [Abstract]

Summary of stock-based compensation expense (benefit)

Stock-based compensation expense, including discontinued operations, was as follows (in millions):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015			2014		2015		2014
Stock appreciation rights (a)	$	(5	)	$	13	$	10	$	(5	)
Performance share awards (b)	2			7		6		4
Market stock units (c)	7			5		12		8
Other stock-based awards (d)	3			1		7		1
Total Stock-Based Compensation Expense	$	7		$	26	$	35	$	8

____________________

(a) We paid cash of $22 million and $14 million to settle 0.4 million and 0.5 million SARs that were exercised during the six months ended June 30, 2015 and 2014, respectively. We had $48 million and $60 million recorded in accrued liabilities associated with our SARs awards at June 30, 2015 and December 31, 2014, respectively.

(b) We granted 0.1 million market condition performance share awards at a weighted average grant date fair value of $117.96 per share under the amended and restated 2011 Long-Term Incentive Plan (“2011 Plan”) during the six months ended June 30, 2015.

(c) We granted 0.4 million market stock units at a weighted average grant date fair value of $114.57 per unit under the 2011 Plan during the six months ended June 30, 2015.

(d) We have aggregated expenses for certain award types as they are not considered significant.

XML

Commitments and Contingencies, Washington Refinery Fire (Details) - Washington Refinery Fire $ in Millions			1 Months Ended									6 Months Ended
	Jul. 21, 2015	Nov. 20, 2013	Mar. 31, 2015	Feb. 28, 2015	Jan. 31, 2015	Nov. 30, 2013	Sep. 30, 2013	Jan. 31, 2011	Dec. 31, 2010	Oct. 31, 2010 USD ($)	Apr. 30, 2010 employees	Jun. 30, 2015
Loss Contingencies
Incident date											April 2010
Number of fatally injured employees in the refinery incident (employees)											7
Citation issuance date										October 2010
Fines and penalties assessed | $										$ 2.4
L&I Citation allegation reassumption date									December 2010
Citation order appeal date				February 2015		November 2013	September 2013	January 2011
Loss Contingency, Allegations												44
Notice of Violation (NOV) date		Nov. 20, 2013
Notice of Violation (NOV) disclosure		46										We received a notice of violation (“NOV”) from the EPA alleging 46 violations of the Clean Air Act Risk Management Plan requirements at our Washington refinery. The EPA conducted an investigation of the refinery in 2011, following the April 2010 fire in the naphtha hydrotreater unit.
previous owner, notification of indemnity demand date					January 2015
Arbitration proceedings against previous owner claim, initiation date			March 2015
Subsequent Event
Loss Contingencies
Loss Contingency, citation Allegations hearing start date	Jul. 21, 2015
Judicial Ruling Rejected Allegations
Loss Contingencies
Loss Contingency, Allegations												33
Remaining Allegations
Loss Contingencies
Loss Contingency, Allegations												11

XML

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Shares Outstanding

Our share calculations are presented below (in millions):

	Three Months Ended June 30,		Six Months Ended June 30,
	2015	2014	2015	2014
Weighted average common shares outstanding	125.2	129.3	125.2	130.3
Common stock equivalents	1.1	2.2	1.4	2.4
Total Diluted Shares	126.3	131.5	126.6	132.7

XML

Derivative Instruments, Open Long (Short) Positions (Details) - Jun. 30, 2015 bu in Thousands, bbl in Thousands, T in Thousands, CAD in Millions	CAD T bbl bu
Derivative
Maturity date of foreign currency derivatives	Jul. 24, 2015
Derivative, notional amount | CAD	CAD 30
Crude Oil Refined Products And Blending Products (in barrels) | Futures | Short | 2015
Derivative
Contract volumes	(7,084)
Crude Oil Refined Products And Blending Products (in barrels) | Futures | Short | 2016
Derivative
Contract volumes	0
Crude Oil Refined Products And Blending Products (in barrels) | Futures | Short | 2017
Derivative
Contract volumes	0
Crude Oil Refined Products And Blending Products (in barrels) | Futures | Long | 2015
Derivative
Contract volumes	0
Crude Oil Refined Products And Blending Products (in barrels) | Futures | Long | 2016
Derivative
Contract volumes	200
Crude Oil Refined Products And Blending Products (in barrels) | Futures | Long | 2017
Derivative
Contract volumes	0
Crude Oil Refined Products And Blending Products (in barrels) | OTC Swaps | Long | 2015
Derivative
Contract volumes	700
Crude Oil Refined Products And Blending Products (in barrels) | OTC Swaps | Long | 2016
Derivative
Contract volumes	900
Crude Oil Refined Products And Blending Products (in barrels) | OTC Swaps | Long | 2017
Derivative
Contract volumes	0
Crude Oil Refined Products And Blending Products (in barrels) | Forwards | Long | 2015
Derivative
Contract volumes	35
Crude Oil Refined Products And Blending Products (in barrels) | Forwards | Long | 2016
Derivative
Contract volumes	0
Crude Oil Refined Products And Blending Products (in barrels) | Forwards | Long | 2017
Derivative
Contract volumes	0
Carbon Credit (in tons) | Futures | Long | 2015
Derivative
Contract, mass | T	2,050
Carbon Credit (in tons) | Futures | Long | 2016
Derivative
Contract, mass | T	1,000
Carbon Credit (in tons) | Futures | Long | 2017
Derivative
Contract, mass | T	1,000
Renewable identification numbers (in gallons) | Futures | Short | 2015
Derivative
Contract volumes	(400)
Renewable identification numbers (in gallons) | Futures | Short | 2016
Derivative
Contract volumes	0
Renewable identification numbers (in gallons) | Futures | Short | 2017
Derivative
Contract volumes	0
Corn (in bushels) | Futures | Short | 2015
Derivative
Contract volumes | bu	(3,080)
Corn (in bushels) | Futures | Short | 2016
Derivative
Contract volumes | bu	0
Corn (in bushels) | Futures | Short | 2017
Derivative
Contract volumes | bu	0

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Earnings Per Share (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Weighted average common shares outstanding	125.2	129.3	125.2	130.3
Common stock equivalents	1.1	2.2	1.4	2.4
Total diluted shares	126.3	131.5	126.6	132.7

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Basis of Presentation Basis of Presentation, Discontinued Operations (Details) MBbls / d in Thousands, $ in Millions		3 Months Ended		6 Months Ended
	Sep. 25, 2013 MBbls / d	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)
Discontinued Operations
Loss from discontinued operations, net of tax		$ (4)	$ 0	$ (4)	$ (1)
Hawaii Operations
Discontinued Operations
Disposal date	Sep. 25, 2013
Capacity (bpd) | MBbls / d	94
Revenues		0	0	0	0
Loss from discontinued operations, before tax		(6)	0	(6)	(1)
Loss from discontinued operations, net of tax		$ (4)	$ 0	(4)	(1)
Net Cash Used in Discontinued Operations				$ 0	$ (1)

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Total Debt (Details) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Debt Instrument
Total Debt	[1]	$ 4,291	$ 4,255
Unamortized issuance costs	[2],[3]	80	88
Current maturities, net of unamortized issuance costs		(403)	(6)
Debt, net of current maturities and unamortized issuance costs		3,808	4,161
Unamortized premium		4	5
Unamortized debt issuance costs		(84)
TLLP
Debt Instrument
Total Debt		$ 2,600	2,600
New Accounting Pronouncement, Early Adoption, Effect
Debt Instrument
Unamortized debt issuance costs			$ (93)

[1] Total debt related to TLLP, which is non-recourse to Tesoro, except for TLGP, was $2.6 billion at both June 30, 2015 and December 31, 2014.

[2] Includes unamortized premium associated with TLLP’s 5.875% Senior Notes due 2020 of $4 million and $5 million as of June 30, 2015 and December 31, 2014, respectively.

[3] The Company adopted ASU 2015-03 in the first quarter of 2015 and applied the changes retrospectively to the prior period presented. Adoption of this standard has resulted in the reclassification of $93 million of unamortized debt issuance costs from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of $84 million are recorded as a reduction to debt on the balance sheet at June 30, 2015. See Note 1 for further discussion.

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Condensed Consolidating Financial Information, Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 978	$ 1,000	$ 1,239	$ 1,238
Receivables, net of allowance for doubtful accounts	1,305	1,435
Short-term receivables from affiliates	0	0
Inventories	2,444	2,439
Prepayments and other current assets	171	200
Total Current Assets	4,898	5,074
Net Property, Plant and Equipment	9,294	9,045
Investment in Subsidiaries	0	0
Long-Term Receivables from Affiliates	0	0
Long-Term Intercompany Note Receivable	0	0
OTHER NONCURRENT ASSETS
Acquired intangibles, net	1,200	1,222
Other, net	1,299	1,150
Total Other Noncurrent Assets, Net	2,499	2,372
Total Assets	16,691	16,491
Current Liabilities:
Accounts payable	1,955	2,470
Current maturities of debt, net of unamortized issuance costs	403	6
Short-term payables to affiliates	0	0
Other current liabilities	1,046	990
Total Current Liabilities	3,404	3,466
Long-Term Payables to Affiliates	0	0
Deferred Income Taxes	1,179	1,098
Other Noncurrent Liabilities	917	790
Debt, net of unamortized issuance costs	3,808	4,161
Long-Term Intercompany Note Payable	0	0
Equity-Tesoro Corporation	4,837	4,454
Equity-Noncontrolling Interest	2,546	2,522
Total Liabilities and Equity	16,691	16,491
Parent
Current Assets
Cash and cash equivalents	0	0	0	0
Receivables, net of allowance for doubtful accounts	0	6
Short-term receivables from affiliates	0	0
Inventories	0	0
Prepayments and other current assets	42	71
Total Current Assets	42	77
Net Property, Plant and Equipment	0	0
Investment in Subsidiaries	7,322	6,592
Long-Term Receivables from Affiliates	2,348	2,427
Long-Term Intercompany Note Receivable	0	0
OTHER NONCURRENT ASSETS
Acquired intangibles, net	0	0
Other, net	6	6
Total Other Noncurrent Assets, Net	6	6
Total Assets	9,718	9,102
Current Liabilities:
Accounts payable	0	1
Current maturities of debt, net of unamortized issuance costs	397	0
Short-term payables to affiliates	0	0
Other current liabilities	311	148
Total Current Liabilities	708	149
Long-Term Payables to Affiliates	0	0
Deferred Income Taxes	1,179	1,098
Other Noncurrent Liabilities	432	447
Debt, net of unamortized issuance costs	1,186	1,578
Long-Term Intercompany Note Payable	1,376	1,376
Equity-Tesoro Corporation	4,837	4,454
Equity-Noncontrolling Interest	0	0
Total Liabilities and Equity	9,718	9,102
Guarantor Subsidiaries
Current Assets
Cash and cash equivalents	942	943	940	1,161
Receivables, net of allowance for doubtful accounts	1,059	912
Short-term receivables from affiliates	47	84
Inventories	2,218	2,088
Prepayments and other current assets	109	115
Total Current Assets	4,375	4,142
Net Property, Plant and Equipment	5,850	5,666
Investment in Subsidiaries	418	362
Long-Term Receivables from Affiliates	0	0
Long-Term Intercompany Note Receivable	0	0
OTHER NONCURRENT ASSETS
Acquired intangibles, net	241	249
Other, net	1,044	893
Total Other Noncurrent Assets, Net	1,285	1,142
Total Assets	11,928	11,312
Current Liabilities:
Accounts payable	1,640	1,779
Current maturities of debt, net of unamortized issuance costs	6	6
Short-term payables to affiliates	0	0
Other current liabilities	612	711
Total Current Liabilities	2,258	2,496
Long-Term Payables to Affiliates	2,302	2,399
Deferred Income Taxes	0	0
Other Noncurrent Liabilities	428	296
Debt, net of unamortized issuance costs	36	39
Long-Term Intercompany Note Payable	0	0
Equity-Tesoro Corporation	6,904	6,082
Equity-Noncontrolling Interest	0	0
Total Liabilities and Equity	11,928	11,312
Non- Guarantors
Current Assets
Cash and cash equivalents	36	57	299	77
Receivables, net of allowance for doubtful accounts	246	517
Short-term receivables from affiliates	0	0
Inventories	226	351
Prepayments and other current assets	21	16
Total Current Assets	529	941
Net Property, Plant and Equipment	3,444	3,379
Investment in Subsidiaries	0	0
Long-Term Receivables from Affiliates	0	0
Long-Term Intercompany Note Receivable	1,376	1,376
OTHER NONCURRENT ASSETS
Acquired intangibles, net	959	973
Other, net	249	251
Total Other Noncurrent Assets, Net	1,208	1,224
Total Assets	6,557	6,920
Current Liabilities:
Accounts payable	315	690
Current maturities of debt, net of unamortized issuance costs	0	0
Short-term payables to affiliates	47	84
Other current liabilities	124	133
Total Current Liabilities	486	907
Long-Term Payables to Affiliates	46	28
Deferred Income Taxes	0	0
Other Noncurrent Liabilities	57	47
Debt, net of unamortized issuance costs	2,586	2,544
Long-Term Intercompany Note Payable	0	0
Equity-Tesoro Corporation	836	872
Equity-Noncontrolling Interest	2,546	2,522
Total Liabilities and Equity	6,557	6,920
Eliminations
Current Assets
Cash and cash equivalents	0	0	$ 0	$ 0
Receivables, net of allowance for doubtful accounts	0	0
Short-term receivables from affiliates	(47)	(84)
Inventories	0	0
Prepayments and other current assets	(1)	(2)
Total Current Assets	(48)	(86)
Net Property, Plant and Equipment	0	0
Investment in Subsidiaries	(7,740)	(6,954)
Long-Term Receivables from Affiliates	(2,348)	(2,427)
Long-Term Intercompany Note Receivable	(1,376)	(1,376)
OTHER NONCURRENT ASSETS
Acquired intangibles, net	0	0
Other, net	0	0
Total Other Noncurrent Assets, Net	0	0
Total Assets	(11,512)	(10,843)
Current Liabilities:
Accounts payable	0	0
Current maturities of debt, net of unamortized issuance costs	0	0
Short-term payables to affiliates	(47)	(84)
Other current liabilities	(1)	(2)
Total Current Liabilities	(48)	(86)
Long-Term Payables to Affiliates	(2,348)	(2,427)
Deferred Income Taxes	0	0
Other Noncurrent Liabilities	0	0
Debt, net of unamortized issuance costs	0	0
Long-Term Intercompany Note Payable	(1,376)	(1,376)
Equity-Tesoro Corporation	(7,740)	(6,954)
Equity-Noncontrolling Interest	0	0
Total Liabilities and Equity	$ (11,512)	$ (10,843)

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Stock-Based Compensation (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stock-Based Compensation Arrangement by Stock-based Payment Award
Stock-based compensation expense (benefit)		$ 7	$ 26	$ 35	$ 8
Income tax benefit (expense) for stock-based compensation arrangements		3	9	14	2
Tax benefit realized from exercise of stock-based compensation arrangements		9	30	63	33
Stock appreciation rights
Stock-Based Compensation Arrangement by Stock-based Payment Award
Stock-based compensation expense (benefit)	[1]	(5)	13	10	(5)
Performance share awards
Stock-Based Compensation Arrangement by Stock-based Payment Award
Stock-based compensation expense (benefit)	[2]	2	7	6	4
Market stock units
Stock-Based Compensation Arrangement by Stock-based Payment Award
Stock-based compensation expense (benefit)	[3]	7	5	12	8
Other stock-based awards
Stock-Based Compensation Arrangement by Stock-based Payment Award
Stock-based compensation expense (benefit)	[4]	$ 3	$ 1	$ 7	$ 1

[1] We paid cash of $22 million and $14 million to settle 0.4 million and 0.5 million SARs that were exercised during the six months ended June 30, 2015 and 2014, respectively. We had $48 million and $60 million recorded in accrued liabilities associated with our SARs awards at June 30, 2015 and December 31, 2014, respectively.

[2] We granted 0.1 million market condition performance share awards at a weighted average grant date fair value of $117.96 per share under the amended and restated 2011 Long-Term Incentive Plan (“2011 Plan”) during the six months ended June 30, 2015.

[3] We granted 0.4 million market stock units at a weighted average grant date fair value of $114.57 per unit under the 2011 Plan during the six months ended June 30, 2015.

[4] We have aggregated expenses for certain award types as they are not considered significant.

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Property, Plant and Equipment Property, Plant and Equipment Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Property, Plant and Equipment [Abstract]
Capitalized interest	$ 9	$ 5	$ 18	$ 10

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Inventories (Notes)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

INVENTORIES

INVENTORIES

Components of inventories were as follows (in millions):

	June 30, 2015		December 31, 2014
Domestic crude oil and refined products	$	2,031	$	1,930
Foreign subsidiary crude oil	224		351
Other inventories	189		158
Total Inventories	$	2,444	$	2,439

The total carrying value of our crude oil and refined product inventories was less than replacement cost by approximately $578 million at June 30, 2015. Due to the declining crude oil and refined product pricing environment at the end of 2014, we recorded a lower of cost or market adjustment to cost of sales of $42 million at December 31, 2014 for our crude oil, refined products, oxygenates and by-product inventories. This adjustment was reversed in the first quarter of 2015 as the inventories associated with the adjustment at the end of 2014 were sold or used during the first quarter of 2015.

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Stock-Based Compensation Stock-Based Compensation, Stock Appreciation Rights, Performance Share Awards and Market Stock Units(Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Stock appreciation rights
Stock-Based Compensation Arrangement by Stock-based Payment Award
Cash paid to settle awards	$ 22	$ 14
Exercised stock appreciation rights (shares)	0.4	0.5
Accrued stock appreciation rights	$ 48		$ 60
Performance share awards
Stock-Based Compensation Arrangement by Stock-based Payment Award
Awards granted (shares)	0.1
Weighted average grant date fair value (dollars per share)	$ 117.96
Market stock units
Stock-Based Compensation Arrangement by Stock-based Payment Award
Awards granted (shares)	0.4
Weighted average grant date fair value (dollars per share)	$ 114.57

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Earnings Per Share Earnings Per Share Narrative (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share [Abstract]
Anti-dilutive securities (shares)	0.6	0.1	0.4	0.5

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Schedule of fair value, assets and liabilities measured on recurring basis

Financial assets and liabilities recognized at fair value in our condensed consolidated balance sheets by level within the fair value hierarchy were as follows (in millions):

	June 30, 2015
	Level 1		Level 2		Level 3		Netting and Collateral (a)			Total
Assets:
Commodity Futures Contracts	$	375	$	13	$	—	$	(327	)	$	61
Commodity OTC Swap Contracts	—		3		—		—			3
Commodity Forward Contracts	—		1		—		—			1
Total Assets	$	375	$	17	$	—	$	(327	)	$	65
Liabilities:
Commodity Futures Contracts	$	391	$	12	$	—	$	(386	)	$	17
Commodity OTC Swap Contracts	—		1		—		—			1
Commodity Forward Contracts	—		1		—		—			1
Environmental Credit Obligations	—		30		—		—			30
Total Liabilities	$	391	$	44	$	—	$	(386	)	$	49

	December 31, 2014
	Level 1		Level 2		Level 3		Netting and Collateral (a)			Total
Assets:
Commodity Futures Contracts	$	1,165	$	36	$	—	$	(1,136	)	$	65
Commodity Forward Contracts	—		3		—		—			3
Total Assets	$	1,165	$	39	$	—	$	(1,136	)	$	68
Liabilities:
Commodity Futures Contracts	$	1,011	$	14	$	—	$	(1,024	)	$	1
Commodity OTC Swap Contracts	—		1		—		—			1
Commodity Forward Contracts	—		1		—		—			1
Environmental Credit Obligations	—		20		—		—			20
Total Liabilities	$	1,011	$	36	$	—	$	(1,024	)	$	23

________________

(a) Certain of our derivative contracts, under master netting arrangements, include both asset and liability positions. We offset both the fair value amounts and any related cash collateral amounts recognized for multiple derivative instruments executed with the same counterparty when there is a legally enforceable right and an intention to settle net or simultaneously. As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions.

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Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2015

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Schedule of derivative instruments in Balance Sheet, fair value

The following table presents the fair value (in millions) of our derivative instruments as of June 30, 2015 and December 31, 2014. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under the terms of our master netting arrangements including cash collateral on deposit with, or received from, brokers. We offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists. As a result, the asset and liability amounts below will not agree with the amounts presented in our condensed consolidated balance sheets.

		Derivative Assets						Derivative Liabilities
	Balance Sheet Location	June 30, 2015			December 31, 2014			June 30, 2015			December 31, 2014
Commodity Futures Contracts	Prepayments and other current assets	$	388		$	1,201		$	403		$	1,025
Commodity OTC Swap Contracts	Receivables	3			—			—			—
Commodity OTC Swap Contracts	Accounts payable	—			—			1			1
Commodity Forward Contracts	Receivables	1			3			—			—
Commodity Forward Contracts	Accounts payable	—			—			1			1
Total Gross Mark-to-Market    Derivatives		392			1,204			405			1,027
Less: Counterparty Netting and    Cash Collateral (a)		(327		)	(1,136		)	(386		)	(1,024		)
Total Net Fair Value of Derivatives		$	65		$	68		$	19		$	3

________________

(a) As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions. Cash collateral amounts are netted with mark-to-market derivative assets.

Schedule of mark-to-market derivatives

Gains (losses) for our mark-to market derivatives for the three and six months ended June 30, 2015 and 2014 were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Commodity Futures Contracts	$	(86	)	$	(77	)	$	(43	)	$	(77	)
Commodity OTC Swap Contracts	(2		)	(2		)	(2		)	(3		)
Commodity Forward Contracts	12			3			14			4
Foreign Currency Forward Contracts	—			2			(2		)	—
Total Loss on Mark-to-Market Derivatives	$	(76	)	$	(74	)	$	(33	)	$	(76	)

The income statement location of gains (losses) for our mark-to market derivatives above were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Revenues	$	(6	)	$	—		$	(2	)	$	1
Cost of sales	(70		)	(76		)	(29		)	(77		)
Other income (expense), net	—			2			(2		)	—
Total Loss on Mark-to-Market Derivatives	$	(76	)	$	(74	)	$	(33	)	$	(76	)

Schedule of open long (short) positions

The information below presents the net volume of outstanding commodity and other contracts by type of instrument, year of maturity and unit of measure as of June 30, 2015 (units in thousands):

	Contract Volumes by Year of Maturity
Mark-to-Market Derivative Instrument	2015	2016	2017	Unit of Measure
Crude oil, refined products and blending products:
Futures - short	(7,084)	—	—	Barrels
Futures - long	—	200	—	Barrels
OTC Swaps - long	700	900	—	Barrels
Forwards - long	35	—	—	Barrels
Carbon credits:
Futures - long	2,050	1,000	1,000	Tons
Renewable identification numbers:
Futures - short	(400)	—	—	Gallons
Corn:
Futures - short	(3,080)	—	—	Bushels

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Commitments and Contingencies, Environmental Liabilities (Details) $ in Millions		6 Months Ended
	Jul. 10, 2015	Jun. 30, 2015 USD ($) entities	Dec. 31, 2014 USD ($)
Environmental Liabilities
Environmental liability accrual		$ 244	$ 274
Martinez refinery
Environmental Liabilities
Environmental liability accrual		$ 201	216
Remediation activities measurement period		We cannot reasonably determine the full extent of remedial activities that may be required at the Martinez refinery and for assets acquired in the Los Angeles Acquisition, and it is possible that we will identify additional investigation and remediation costs for site cleanup activities as more information becomes available.
Environmental insurance coverage ceiling		$ 190
Self-insurance deductible		$ 50
Number of previous owners (owners) | entities		2
TLLP
Environmental Liabilities
Environmental liability accrual		$ 22	$ 32
Subsequent Event | Martinez refinery
Environmental Liabilities
Loss Contingency, coverage denial date	Jul. 10, 2015

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Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Domestic crude oil and refined products	$ 2,031	$ 1,930
Foreign subsidiary crude oil	224	351
Other inventories	189	158
Total Inventories	$ 2,444	$ 2,439

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Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Schedule of Debt

Our debt balance, net of unamortized issuance costs, at June 30, 2015 and December 31, 2014 was as follows (in millions):

	June 30, 2015			December 31, 2014
Total debt (a)	$	4,291		$	4,255
Unamortized issuance costs (b) (c)	(80		)	(88		)
Current maturities, net of unamortized issuance costs	(403		)	(6		)
Debt, Net of Current Maturities and Unamortized Issuance Costs	$	3,808		$	4,161

________________

(a) Total debt related to TLLP, which is non-recourse to Tesoro, except for TLGP, was $2.6 billion at both June 30, 2015 and December 31, 2014.

(b) Includes unamortized premium associated with TLLP’s 5.875% Senior Notes due 2020 of $4 million and $5 million as of June 30, 2015 and December 31, 2014, respectively.

(c) The Company adopted ASU 2015-03 in the first quarter of 2015 and applied the changes retrospectively to the prior period presented. Adoption of this standard has resulted in the reclassification of $93 million of unamortized debt issuance costs from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of $84 million are recorded as a reduction to debt on the balance sheet at June 30, 2015. See Note 1 for further discussion.

Schedule of Line of Credit Facilities

The borrowings under our Term Loan Facility incurred interest at a rate of 2.44% as of June 30, 2015 based on the following expense and fee schedule:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Term Loan Facility ($398 million) (a)	0.19%	2.25%	3.25%	1.25%	—%

____________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing.

We had available capacity under our credit facilities as follows at June 30, 2015 (in millions):

	Total Capacity		Amount Borrowed as of June 30, 2015		Outstanding Letters of Credit		Available Capacity		Expiration
Tesoro Corporation Revolving Credit Facility (a)	$	3,000	$	—	$	136	$	2,864	November 18, 2019
TLLP Revolving Credit Facility	900		299		—		601		December 2, 2019
Letter of Credit Facilities	2,035		—		80		1,955
Total credit facilities	$	5,935	$	299	$	216	$	5,420

________________

(a) Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity of $3.0 billion.

As of June 30, 2015, our credit facilities were subject to the following expenses and fees:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Tesoro Corporation Revolving Credit Facility    ($3.0 billion) (a)	0.19%	1.50%	3.25%	0.50%	0.375%
TLLP Revolving Credit Facility ($900 million) (b)	0.19%	2.50%	3.25%	1.50%	0.50%

________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our senior secured credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

(b) TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the TLLP Revolving Credit Facility incur fees at the Eurodollar margin rate.

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Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures

The components of pension and other postretirement benefit expense (income) for the three and six months ended June 30, 2015 and 2014 were (in millions):

	Pension Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Service cost	$	11		$	13		$	23		$	26
Interest cost	7			8			15			17
Expected return on plan assets	(6		)	(7		)	(13		)	(15		)
Amortization of prior service cost	—			1			—			1
Recognized net actuarial loss	6			3			12			7
Net Periodic Benefit Expense	$	18		$	18		$	37		$	36
	Other Postretirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Service cost	$	1		$	1		$	2		$	2
Interest cost	—			—			1			1
Amortization of prior service credit	(8		)	(8		)	(17		)	(17		)
Recognized net actuarial loss	1			2			2			3
Net Periodic Benefit Income	$	(6	)	$	(5	)	$	(12	)	$	(11	)

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Earnings Per Share (Notes)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

We compute basic earnings per share by dividing net earnings attributable to Tesoro Corporation stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share include the effects of potentially dilutive shares outstanding during the period. Our share calculations are presented below (in millions):

	Three Months Ended June 30,		Six Months Ended June 30,
	2015	2014	2015	2014
Weighted average common shares outstanding	125.2	129.3	125.2	130.3
Common stock equivalents	1.1	2.2	1.4	2.4
Total Diluted Shares	126.3	131.5	126.6	132.7

Potentially dilutive common stock equivalents are excluded from the calculation of diluted earnings per share if the effect of including such securities in the calculation would have been anti-dilutive. Anti-dilutive securities were 0.6 millionand 0.1 million for the three months ended June 30, 2015 and 2014, respectively, and 0.4 millionand 0.5 million for the six months ended June 30, 2015 and 2014, respectively.

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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Attributable to Parent [Abstract]

Stockholders' equity and noncontrolling interest

Changes to equity during the six months ended June 30, 2015 are presented below (in millions):

	Tesoro Corporation Stockholders’ Equity			Noncontrolling  Interest			Total Equity
Balance at December 31, 2014 (a)	$	4,454		$	2,522		$	6,976
Net earnings	727			81			808
Purchases of common stock	(269		)	—			(269		)
Dividend payments	(107		)	—			(107		)
Net effect of amounts related to equity-based compensation (b)	22			2			24
Net proceeds from issuance of Tesoro Logistics LP common units	—			45			45
Distributions to noncontrolling interest	—			(90		)	(90		)
Transfers to (from) Tesoro paid-in capital related to:
TLLP’s sale of common units	14			(14		)	—
Other	(4		)	—			(4		)
Balance at June 30, 2015 (a)	$	4,837		$	2,546		$	7,383

________________

(a) We have 5.0 million shares of preferred stock authorized with no par value per share. No shares of preferred stock were outstanding as of June 30, 2015 and December 31, 2014.

(b) We issued approximately 0.3 million shares during each of the six months ended June 30, 2015 and 2014 for proceeds of $10 million and $6 million, respectively, primarily for stock option exercises under our equity-based compensation plans. See Note 12 for more information on stock-based compensation.

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Tesoro Logistics LP TLLP’s Preliminary Acquisition Date Purchase Price Allocation (Details) - Rockies Natural Gas Business $ in Millions		Jun. 30, 2015 USD ($)
Preliminary acquisition date purchase price allocation
Cash		$ 32
Accounts receivable		120
Prepayments and other		8
Property, plant and equipment		1,735
Acquired intangibles		976
Other noncurrent assets	[1]	233
Accounts payable		(72)
Other current liabilities		(50)
Other noncurrent liabilities		(34)
Noncontrolling interest		(432)
Total purchase price		2,516
Goodwill		$ 153

[1] Other noncurrent assets include $153 million of goodwill.

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Revolving Credit Facilities (Details) - Jun. 30, 2015 - USD ($) $ in Millions		Total
Credit facilities
Total capacity		$ 5,935
Amount Borrowed as of June 30, 2015		299
Outstanding Letters of Credit		216
Available Capacity		5,420
Tesoro Corporation Revolving Credit Facility
Credit facilities
Total capacity	[1]	3,000
Amount Borrowed as of June 30, 2015	[1]	0
Outstanding Letters of Credit	[1]	136
Available Capacity	[1]	$ 2,864
Expiration	[1]	Nov. 18, 2019
Expenses and Fees
Commitment Fee (unused portion)	[2]	0.375%
Maximum available capacity		$ 3,000
Line of credit facility, remaining borrowing capacity percentage		95.00%
TLLP Revolving Credit Facility
Credit facilities
Total capacity		$ 900
Amount Borrowed as of June 30, 2015		299
Outstanding Letters of Credit		0
Available Capacity		$ 601
Expiration		Dec. 02, 2019
Expenses and Fees
Commitment Fee (unused portion)	[3]	0.50%
Maximum available capacity		$ 1,500
Line of credit facility, remaining borrowing capacity percentage		67.00%
Weighted average interest rate		2.75%
Line of credit facility, collateral		The TLLP Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of TLLP’s subsidiaries, with the exception of Rendezvous Gas Services L.L.C., and secured by substantially all of TLLP’s assets. Borrowings are available under the TLLP Revolving Credit Facility up to the total loan availability of the facility.
Letter of Credit Facilities
Credit facilities
Total capacity		$ 2,035
Amount Borrowed as of June 30, 2015		0
Outstanding Letters of Credit		80
Available Capacity		$ 1,955
30 day Eurodollar (LIBOR) Rate | Tesoro Corporation Revolving Credit Facility
Expenses and Fees
Eurodollar or Base Rate	[2]	0.19%
Eurodollar or Base Rate Margin	[2]	1.50%
30 day Eurodollar (LIBOR) Rate | TLLP Revolving Credit Facility
Expenses and Fees
Eurodollar or Base Rate	[3]	0.19%
Eurodollar or Base Rate Margin	[3]	2.50%
Base Rate | Tesoro Corporation Revolving Credit Facility
Expenses and Fees
Eurodollar or Base Rate	[2]	3.25%
Eurodollar or Base Rate Margin	[2]	0.50%
Base Rate | TLLP Revolving Credit Facility
Expenses and Fees
Eurodollar or Base Rate	[3]	3.25%
Eurodollar or Base Rate Margin	[3]	1.50%
Minimum | Letter of Credit Facilities
Expenses and Fees
Tesoro Corporation, letter of credit outstanding fees		0.40%
Maximum | Letter of Credit Facilities
Expenses and Fees
Tesoro Corporation, letter of credit outstanding fees		1.00%

[1] Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity of $3.0 billion.

[2] We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our senior secured credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

[3] TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the TLLP Revolving Credit Facility incur fees at the Eurodollar margin rate.

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Condensed Statements of Consolidated Operations (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenues (a)		$ 8,232	$ 11,104	$ 14,695	$ 21,037
Costs and Expenses:
Cost of sales (a)		6,398	9,867	11,738	18,815
Operating expenses		578	598	1,087	1,189
Selling, general and administrative expenses		61	92	152	123
Depreciation and amortization expense		182	135	361	265
(Gain) loss on asset disposals and impairments		4	2	8	(3)
Operating Income		1,009	410	1,349	648
Interest and financing costs, net	[1]	(54)	(41)	(109)	(118)
Other income, net		3	3	2	2
Earnings Before Income Taxes		958	372	1,242	532
Income tax expense		334	132	430	188
Net Earnings from Continuing Operations		624	240	812	344
Loss from discontinued operations, net of tax		(4)	0	(4)	(1)
Net Earnings		620	240	808	343
Less: Net earnings from continuing operations attributable to noncontrolling interest		38	16	81	41
Net Earnings Attributable to Tesoro Corporation		582	224	727	302
Net Earnings (Loss) Attributable to Tesoro Corporation
Continuing operations		586	224	731	303
Discontinued operations		(4)	0	(4)	(1)
Total		$ 582	$ 224	$ 727	$ 302
Net Earnings (Loss) per Share - Basic:
Continuing operations		$ 4.67	$ 1.73	$ 5.84	$ 2.33
Discontinued operations		(0.03)	0.00	(0.03)	(0.01)
Total		$ 4.64	$ 1.73	$ 5.81	$ 2.32
Weighted average common shares outstanding - Basic		125.2	129.3	125.2	130.3
Net Earnings (Loss) per Share - Diluted:
Continuing operations		$ 4.62	$ 1.70	$ 5.77	$ 2.29
Discontinued operations		(0.03)	0.00	(0.03)	(0.01)
Total		$ 4.59	$ 1.70	$ 5.74	$ 2.28
Weighted average common shares outstanding - Diluted		126.3	131.5	126.6	132.7
Dividends per Share		$ 0.425	$ 0.250	$ 0.850	$ 0.500
Supplemental Information:
(a) Includes excise taxes collected by our marketing segment		$ 146	$ 152	$ 286	$ 293

[1] Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 5.50% Senior Notes due 2019 during the six months ended June 30, 2014.

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Inventories Inventories Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Excess of replacement or current costs over stated LIFO value	$ 578
Lower of cost or market adjustment		$ 42

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Basis of Presentation (Notes)

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

As used in this report, the terms “Tesoro,” “we,” “us” or “our” may refer to Tesoro Corporation, one or more of its consolidated subsidiaries or all of them taken as a whole. The words “we,” “us” or “our” generally include Tesoro Logistics LP (“TLLP”) and its subsidiaries as consolidated subsidiaries of Tesoro Corporation with certain exceptions where there are transactions or obligations between TLLP and Tesoro Corporation or its other subsidiaries. When used in descriptions of agreements and transactions, “TLLP” or the “Partnership” refers to TLLP and its consolidated subsidiaries, including its ownership interest in QEP Midstream Partners, LP (“QEPM”) and its subsidiaries.

The interim condensed consolidated financial statements and notes thereto of Tesoro Corporation and its subsidiaries have been prepared by management without audit according to the rules and regulations of the Securities and Exchange Commission (“SEC”). The accompanying condensed consolidated financial statements reflect all adjustments that, in the opinion of management, are necessary for a fair presentation of results for the periods presented. Such adjustments are of a normal recurring nature, unless otherwise disclosed.

The consolidated balance sheet at December 31, 2014 has been condensed from the audited consolidated financial statements at that date. Certain information and notes normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the SEC’s rules and regulations. However, management believes that the disclosures presented herein are adequate to present the information fairly. The accompanying condensed consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2014.

We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the reported amounts and disclosures of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented. We review our estimates on an ongoing basis. Changes in facts and circumstances may result in revised estimates and actual results could differ from those estimates. The results of operations for any interim period are not necessarily indicative of results for the full year. Certain prior year balances have been aggregated or disaggregated in order to conform to the current year presentation. Due to there being no adjustments to accumulated other comprehensive income for the three and six months ended June 30, 2015 and 2014, consolidated statements of comprehensive income have been omitted.

As of June 30, 2015, we revised our operating segments to include refining, TLLP and a new marketing segment. Comparable prior period information has been recast to reflect our revised segment presentation. See Note 13 for additional information.

Our condensed consolidated financial statements include TLLP, a variable interest entity. As the general partner of TLLP, we have the sole ability to direct the activities of TLLP that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are TLLP’s primary customer. Under our various long-term, fee-based commercial agreements with TLLP, transactions with us accounted for 56% of TLLP’s total revenues for the three and six months ended June 30, 2015 and 88% for the three and six months ended June 30, 2014. In the event TLLP incurs a loss, our operating results will reflect TLLP’s loss, net of intercompany eliminations. See Note 2 for additional information relating to TLLP.

On September 25, 2013, we completed the sale of all of our interest in Tesoro Hawaii, LLC, which operated a 94 thousand barrel per day Hawaii refinery, retail stations and associated logistics assets (the “Hawaii Business”). The results of operations for this business have been presented as discontinued operations in the condensed statements of consolidated operations for the three and six months ended June 30, 2015 and 2014. There were no revenues for either the three and six months ended June 30, 2015 or 2014. There were $6 million and $4 million of recorded losses, before and after tax, respectively, for each of the three and six months ended June 30, 2015. There were no recorded losses, before or after tax, related to the Hawaii Business for the three months ended June 30, 2014 and a loss of $1 million, before and after tax, for the six months ended June 30, 2014. Cash flows used in operating activities were $1 million for the six months ended June 30, 2014. There were no cash flows for the six months ended June 30, 2015. Unless otherwise noted, the information in the notes to the condensed consolidated financial statements relates to our continuing operations.

New Accounting Standards and Disclosures

Revenue Recognition. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which provides accounting guidance for all revenue arising from contracts to provide goods or services to customers. ASU 2014-09 is effective for interim and annual periods beginning after December 15, 2017 given the FASB’s recent deferral of ASU 2014-09’s effective date. Entities may choose to early adopt ASU 2014-09 as of the original effective date. The standard allows for either full retrospective adoption or modified retrospective adoption. At this time, we are evaluating the guidance to determine the method, timing and the impact of adopting ASU 2014-09 with regard to our financial statements and related disclosures.

Consolidation.  In February 2015, the FASB issued Accounting Standard Update 2015-02, “Amendments to the Consolidation Analysis” (“ASU 2015-02”). This standard modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. ASU 2015-02 is effective for interim and annual periods beginning after December 15, 2015, and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted. At this time, we are evaluating the potential impact of this standard on our financial statements, as well as the available transition methods.

Debt Issuance Costs. In April 2015, the FASB issued Accounting Standard Update 2015-03, “Interest - Imputation of Interest” (“ASU 2015-03”), which will simplify the presentation of debt issuance costs. Under ASU 2015-03, debt issuance costs related to a recognized debt liability will be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability. As a result, our balance sheet will reflect a reclassification of unamortized debt issuance costs from other noncurrent assets to debt. ASU 2015-03 is effective for interim and annual periods beginning after December 15, 2015, and early adoption is permitted. We have adopted this standard effective as of March 31, 2015 and applied the changes retrospectively to prior periods presented. Adoption of this standard has resulted in the reclassification of $93 million from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of$84 millionare recorded as a reduction to debt on the balance sheet at June 30, 2015.

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Stockholders' Equity, Changes to Equity (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Total Equity
Balance at December 31, 2014	[1]			$ 6,976
Net earnings		$ 620	$ 240	808	$ 343
Purchases of common stock				(269)
Dividend payments				(107)
Net effect of amounts related to equity-based compensation	[2]			24
Net proceeds from issuance of Tesoro Logistics LP common units				45
Distributions to noncontrolling interest				(90)
TLLP’s sale of common units				0
Other				(4)
Balance at June 30, 2015	[1]	$ 7,383		$ 7,383
Preferred Stock, Shares Authorized		5,000,000		5,000,000		5,000,000
Preferred Stock, Par or Stated Value Per Share		$ 0		$ 0		$ 0
Preferred Stock, Shares Issued		0		0		0
Shares issued for equity-based compensation plans (shares)				300,000	300,000
Stock issued during period, value, primarily stock Options exercised				$ 10	$ 6
Tesoro Corporation Stockholders’ Equity
Total Equity
Balance at December 31, 2014	[1]			4,454
Net earnings				727
Purchases of common stock				(269)
Dividend payments				(107)
Net effect of amounts related to equity-based compensation	[2]			22
Net proceeds from issuance of Tesoro Logistics LP common units				0
Distributions to noncontrolling interest				0
TLLP’s sale of common units				14
Other				(4)
Balance at June 30, 2015	[1]	$ 4,837		4,837
Noncontrolling Interest
Total Equity
Balance at December 31, 2014	[1]			2,522
Net earnings				81
Purchases of common stock				0
Dividend payments				0
Net effect of amounts related to equity-based compensation	[2]			2
Net proceeds from issuance of Tesoro Logistics LP common units				45
Distributions to noncontrolling interest				(90)
TLLP’s sale of common units				(14)
Other				0
Balance at June 30, 2015	[1]	$ 2,546		$ 2,546

[1] We have 5.0 million shares of preferred stock authorized with no par value per share. No shares of preferred stock were outstanding as of June 30, 2015 and December 31, 2014.

[2] We issued approximately 0.3 million shares during each of the six months ended June 30, 2015 and 2014 for proceeds of $10 million and $6 million, respectively, primarily for stock option exercises under our equity-based compensation plans. See Note 12 for more information on stock-based compensation.

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Condensed Consolidating Financial Information (Tables)

6 Months Ended

Jun. 30, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Consolidating Statement of Operations

Condensed Consolidating Statement of Operations

for the Three Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	9,000		$	750		$	(1,518	)	$	8,232
Costs and Expenses:
Cost of sales	—			7,336			465			(1,403		)	6,398
Operating, selling, general and administrative expenses	2			617			135			(115		)	639
Depreciation and amortization expense	—			136			46			—			182
Loss on asset disposals and impairments	—			4			—			—			4
Operating Income (Loss)	(2		)	907			104			—			1,009
Equity in earnings of subsidiaries	590			48			—			(638		)	—
Interest and financing costs, net	(10		)	(17		)	(27		)	—			(54		)
Other income, net	1			1			1			—			3
Earnings Before Income Taxes	579			939			78			(638		)	958
Income tax expense (benefit) (a)	(3		)	325			12			—			334
Net Earnings from Continuing Operations	582			614			66			(638		)	624
Loss from discontinued operations, net of tax	—			(4		)	—			—			(4		)
Net Earnings	582			610			66			(638		)	620
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			38			—			38
Net Earnings Attributable to Tesoro Corporation	$	582		$	610		$	28		$	(638	)	$	582
Comprehensive Income
Total comprehensive income	$	582		$	610		$	66		$	(638	)	$	620
Less: Noncontrolling interest in comprehensive income	—			—			38			—			38
Comprehensive Income Attributable to Tesoro    Corporation	$	582		$	610		$	28		$	(638	)	$	582

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Statement of Operations

for the Three Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	12,729		$	1,829		$	(3,454	)	$	11,104
Costs and Expenses:
Cost of sales	—			11,572			1,688			(3,393		)	9,867
Operating, selling, general and administrative expenses	3			677			71			(61		)	690
Depreciation and amortization expense	—			117			18			—			135
(Gain) loss on asset disposals and impairments	—			3			(1		)	—			2
Operating Income (Loss)	(3		)	360			53			—			410
Equity in earnings of subsidiaries	231			13			—			(244		)	—
Interest and financing costs, net	(9		)	(24		)	(17		)	9			(41		)
Other income, net	2			1			9			(9		)	3
Earnings Before Income Taxes	221			350			45			(244		)	372
Income tax expense (benefit) (a)	(3		)	127			8			—			132
Net Earnings	224			223			37			(244		)	240
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			16			—			16
Net Earnings Attributable to Tesoro Corporation	$	224		$	223		$	21		$	(244	)	$	224
Comprehensive Income
Total comprehensive income	$	224		$	223		$	37		$	(244	)	$	240
Less: Noncontrolling interest in comprehensive income	—			—			16			—			16
Comprehensive Income Attributable to Tesoro    Corporation	$	224		$	223		$	21		$	(244	)	$	224

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Statement of Operations

for the Six Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	15,999		$	1,664		$	(2,968	)	$	14,695
Costs and Expenses:
Cost of sales	—			13,329			1,126			(2,717		)	11,738
Operating, selling, general and administrative expenses	6			1,226			258			(251		)	1,239
Depreciation and amortization expense	—			270			91			—			361
Loss on asset disposals and impairments	—			8			—			—			8
Operating Income (Loss)	(6		)	1,166			189			—			1,349
Equity in earnings of subsidiaries	747			64			—			(811		)	—
Interest and financing costs, net	(21		)	(35		)	(53		)	—			(109		)
Other income (expense), net	1			(3		)	4			—			2
Earnings Before Income Taxes	721			1,192			140			(811		)	1,242
Income tax expense (benefit) (a)	(6		)	420			16			—			430
Net Earnings from Continuing Operations	727			772			124			(811		)	812
Loss from discontinued operations, net of tax	—			(4		)	—			—			(4		)
Net Earnings	727			768			124			(811		)	808
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			81			—			81
Net Earnings Attributable to Tesoro Corporation	$	727		$	768		$	43		$	(811	)	$	727
Comprehensive Income
Total comprehensive income	$	727		$	768		$	124		$	(811	)	$	808
Less: Noncontrolling interest in comprehensive income	—			—			81			—			81
Comprehensive Income Attributable to Tesoro    Corporation	$	727		$	768		$	43		$	(811	)	$	727

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Statement of Operations

for the Six Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	24,293		$	3,439		$	(6,695	)	$	21,037
Costs and Expenses:
Cost of sales	—			22,236			3,164			(6,585		)	18,815
Operating, selling, general and administrative expenses	4			1,289			129			(110		)	1,312
Depreciation and amortization expense	—			230			35			—			265
(Gain) loss on asset disposals and impairments	—			2			(5		)	—			(3		)
Operating Income (Loss)	(4		)	536			116			—			648
Equity in earnings of subsidiaries	317			27			—			(344		)	—
Interest and financing costs, net	(17		)	(83		)	(35		)	17			(118		)
Other income, net	2			—			17			(17		)	2
Earnings Before Income Taxes	298			480			98			(344		)	532
Income tax expense (benefit) (a)	(4		)	178			14			—			188
Net Earnings from Continuing Operations	302			302			84			(344		)	344
Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
Net Earnings	302			301			84			(344		)	343
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			41			—			41
Net Earnings Attributable to Tesoro Corporation	$	302		$	301		$	43		$	(344	)	$	302
Comprehensive Income
Total comprehensive income	$	302		$	301		$	84		$	(344	)	$	343
Less: Noncontrolling interest in comprehensive income	—			—			41			—			41
Comprehensive Income Attributable to Tesoro    Corporation	$	302		$	301		$	43		$	(344	)	$	302

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Balance Sheet

Condensed Consolidating Balance Sheet as of June 30, 2015

(In millions)

	Parent		Guarantor Subsidiaries		Non- Guarantors		Eliminations			Consolidated
ASSETS
Current Assets:
Cash and cash equivalents	$	—	$	942	$	36	$	—		$	978
Receivables, net of allowance for doubtful accounts	—		1,059		246		—			1,305
Short-term receivables from affiliates	—		47		—		(47		)	—
Inventories	—		2,218		226		—			2,444
Prepayments and other current assets	42		109		21		(1		)	171
Total Current Assets	42		4,375		529		(48		)	4,898
Net Property, Plant and Equipment	—		5,850		3,444		—			9,294
Investment in Subsidiaries	7,322		418		—		(7,740		)	—
Long-Term Receivables from Affiliates	2,348		—		—		(2,348		)	—
Long-Term Intercompany Note Receivable	—		—		1,376		(1,376		)	—
Other Noncurrent Assets:
Acquired intangibles, net	—		241		959		—			1,200
Other, net	6		1,044		249		—			1,299
Total Other Noncurrent Assets, Net	6		1,285		1,208		—			2,499
Total Assets	$	9,718	$	11,928	$	6,557	$	(11,512	)	$	16,691
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	—	$	1,640	$	315	$	—		$	1,955
Current maturities of debt, net of unamortized issuance costs	397		6		—		—			403
Short-term payables to affiliates	—		—		47		(47		)	—
Other current liabilities	311		612		124		(1		)	1,046
Total Current Liabilities	708		2,258		486		(48		)	3,404
Long-Term Payables to Affiliates	—		2,302		46		(2,348		)	—
Deferred Income Taxes	1,179		—		—		—			1,179
Other Noncurrent Liabilities	432		428		57		—			917
Debt, net of unamortized issuance costs	1,186		36		2,586		—			3,808
Long-Term Intercompany Note Payable	1,376		—		—		(1,376		)	—
Equity-Tesoro Corporation	4,837		6,904		836		(7,740		)	4,837
Equity-Noncontrolling Interest	—		—		2,546		—			2,546
Total Liabilities and Equity	$	9,718	$	11,928	$	6,557	$	(11,512	)	$	16,691

Condensed Consolidating Balance Sheet as of December 31, 2014

(In millions)

	Parent		Guarantor Subsidiaries		Non- Guarantors		Eliminations			Consolidated
ASSETS
Current Assets:
Cash and cash equivalents	$	—	$	943	$	57	$	—		$	1,000
Receivables, net of allowance for doubtful accounts	6		912		517		—			1,435
Short-term receivables from affiliates	—		84		—		(84		)	—
Inventories	—		2,088		351		—			2,439
Prepayments and other current assets	71		115		16		(2		)	200
Total Current Assets	77		4,142		941		(86		)	5,074
Net Property, Plant and Equipment	—		5,666		3,379		—			9,045
Investment in Subsidiaries	6,592		362		—		(6,954		)	—
Long-Term Receivables from Affiliates	2,427		—		—		(2,427		)	—
Long-Term Intercompany Note Receivable	—		—		1,376		(1,376		)	—
Other Noncurrent Assets:
Acquired intangibles, net	—		249		973		—			1,222
Other, net	6		893		251		—			1,150
Total Other Noncurrent Assets, Net	6		1,142		1,224		—			2,372
Total Assets	$	9,102	$	11,312	$	6,920	$	(10,843	)	$	16,491
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	1	$	1,779	$	690	$	—		$	2,470
Current maturities of debt, net of unamortized issuance costs	—		6		—		—			6
Short-term payables to affiliates	—		—		84		(84		)	—
Other current liabilities	148		711		133		(2		)	990
Total Current Liabilities	149		2,496		907		(86		)	3,466
Long-Term Payables to Affiliates	—		2,399		28		(2,427		)	—
Deferred Income Taxes	1,098		—		—		—			1,098
Other Noncurrent Liabilities	447		296		47		—			790
Debt, net of unamortized issuance costs	1,578		39		2,544		—			4,161
Long-Term Intercompany Note Payable	1,376		—		—		(1,376		)	—
Equity-Tesoro Corporation	4,454		6,082		872		(6,954		)	4,454
Equity-Noncontrolling Interest	—		—		2,522		—			2,522
Total Liabilities and Equity	$	9,102	$	11,312	$	6,920	$	(10,843	)	$	16,491

Condensed Consolidating Statement of Cash Flows

Condensed Consolidating Statement of Cash Flows for the Six Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities	$	(26	)	$	663		$	270		$	—		$	907
Cash Flows From (Used In) Investing Activities
Capital expenditures	—			(383		)	(157		)	—			(540		)
Acquisitions	—			—			(6		)	—			(6		)
Intercompany notes, net	415			—			—			(415		)	—
Other investing activities	—			(2		)	—			—			(2		)
Net cash from (used in) investing activities	415			(385		)	(163		)	(415		)	(548		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	—			—			262			—			262
Repayments on revolving credit agreements	—			—			(223		)	—			(223		)
Repayments of debt	—			(3		)	—			—			(3		)
Dividend payments	(107		)	—			—			—			(107		)
Net proceeds from issuance of Tesoro Logistics LP    common units	—			—			45			—			45
Distributions to noncontrolling interest	—			—			(90		)	—			(90		)
Purchases of common stock	(269		)	—			—			—			(269		)
Net intercompany repayments	—			(325		)	(90		)	415			—
Distributions to TLLP unitholders and general partner	21			12			(33		)	—			—
Other financing activities	(34		)	37			1			—			4
Net cash used in financing activities	(389		)	(279		)	(128		)	415			(381		)
Decrease in Cash And Cash Equivalents	—			(1		)	(21		)	—			(22		)
Cash and Cash Equivalents, Beginning of Period	—			943			57			—			1,000
Cash and Cash Equivalents, End of Period	$	—		$	942		$	36		$	—		$	978

Condensed Consolidating Statement of Cash Flows for the Six Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities	$	(20	)	$	248		$	148		$	—		$	376
Cash Flows From (Used In) Investing Activities
Capital expenditures	—			(194		)	(66		)	—			(260		)
Acquisitions	—			(17		)	—			—			(17		)
Intercompany notes, net	316			—			—			(316		)	—
Other investing activities	—			1			9			—			10
Net cash from (used in) investing activities	316			(210		)	(57		)	(316		)	(267		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	—			—			228			—			228
Proceeds from debt offering	300			—			—			—			300
Repayments of debt	(300		)	(2		)	—			—			(302		)
Dividend payments	(65		)	—			—			—			(65		)
Distributions to noncontrolling interest	—			—			(42		)	—			(42		)
Purchases of common stock	(200		)	—			—			—			(200		)
Net intercompany repayments	—			(283		)	(33		)	316			—
Distributions to TLLP unitholders and general partner	8			10			(18		)	—			—
Other financing activities	(39		)	16			(4		)	—			(27		)
Net cash from (used in) financing activities	(296		)	(259		)	131			316			(108		)
Increase (Decrease) in Cash And Cash Equivalents	—			(221		)	222			—			1
Cash and Cash Equivalents, Beginning of Period	—			1,161			77			—			1,238
Cash and Cash Equivalents, End of Period	$	—		$	940		$	299		$	—		$	1,239

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Condensed Consolidating Financial Information, Narrative (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Guarantor Information
Percentage ownership of Tesoro Logistics LP	36.00%	36.00%
Percentage ownership of subsidiary guarantors	100.00%
4.250% Senior Notes due 2017
Guarantor Information
Debt instrument interest rate	4.25%
Debt instrument, maturity date	Oct. 01, 2017
5.375% Senior Notes due 2022
Guarantor Information
Debt instrument interest rate	5.375%
Debt instrument, maturity date	Oct. 01, 2022
5.125% Senior Notes due 2024
Guarantor Information
Debt instrument interest rate	5.125%
Debt instrument, maturity date	Apr. 01, 2024

XML

Derivative Instruments (Policies)

6 Months Ended

Jun. 30, 2015

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Derivatives, policy

Our accounting for derivative instruments depends on whether the underlying commodity will be used or sold in the normal course of business. For contracts where the crude oil or refined products are expected to be used or sold in the normal course of business, we apply the normal purchase normal sale exception and follow the accrual method of accounting. All other derivative instruments are recorded at fair value using mark-to-market accounting.

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Basis of Presentation Basis of Presentation (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Variable Interest Entity
Percentage of TLLP's revenues from Tesoro	56.00%	88.00%	56.00%	88.00%

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Tesoro Logistics LP (Tables)

6 Months Ended

Jun. 30, 2015

Variable Interest Entity, Measure of Activity [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The table below reflects the preliminary acquisition date purchase price allocation as of June 30, 2015 (in millions):

Cash	$	32
Accounts receivable	120
Prepayments and other	8
Property, plant and equipment	1,735
Acquired intangibles	976
Other noncurrent assets (a)	233
Accounts payable	(72		)
Other current liabilities	(50		)
Other noncurrent liabilities	(34		)
Noncontrolling interest	(432		)
Total Purchase Price	$	2,516

____________________

(a) Other noncurrent assets include $153 million of goodwill.

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Condensed Consolidating Financial Information, Cash Flows (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities			$ 907	$ 376
Cash Flows From (Used In) Investing Activities
Capital expenditures			(540)	(260)
Acquisitions			(6)	(17)
Intercompany notes, net			0	0
Other investing activities			(2)	10
Net cash used in investing activities			(548)	(267)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements			262	228
Repayments on revolving credit agreements			(223)	0
Proceeds from debt offering			0	300
Repayments of debt			(3)	(302)
Dividend payments	$ (53)	$ (32)	(107)	(65)
Net proceeds from issuance of Tesoro Logistics LP common units			45	0
Distributions to noncontrolling interest			(90)	(42)
Purchases of common stock			(269)	(200)
Net intercompany borrowings (repayments)			0	0
Distributions to TLLP unitholders and general partner			0	0
Other financing activities			4	(27)
Net cash used in financing activities			(381)	(108)
Increase (Decrease) in Cash And Cash Equivalents			(22)	1
Cash and Cash Equivalents, Beginning of Period			1,000	1,238
Cash and Cash Equivalents, End of Period	978	1,239	978	1,239
Parent
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities			(26)	(20)
Cash Flows From (Used In) Investing Activities
Capital expenditures			0	0
Acquisitions			0	0
Intercompany notes, net			415	316
Other investing activities			0	0
Net cash used in investing activities			415	316
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements			0	0
Repayments on revolving credit agreements			0
Proceeds from debt offering				300
Repayments of debt			0	(300)
Dividend payments			(107)	(65)
Net proceeds from issuance of Tesoro Logistics LP common units			0
Distributions to noncontrolling interest			0	0
Purchases of common stock			(269)	(200)
Net intercompany borrowings (repayments)			0	0
Distributions to TLLP unitholders and general partner			21	8
Other financing activities			(34)	(39)
Net cash used in financing activities			(389)	(296)
Increase (Decrease) in Cash And Cash Equivalents			0	0
Cash and Cash Equivalents, Beginning of Period			0	0
Cash and Cash Equivalents, End of Period	0	0	0	0
Guarantor Subsidiaries
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities			663	248
Cash Flows From (Used In) Investing Activities
Capital expenditures			(383)	(194)
Acquisitions			0	(17)
Intercompany notes, net			0	0
Other investing activities			(2)	1
Net cash used in investing activities			(385)	(210)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements			0	0
Repayments on revolving credit agreements			0
Proceeds from debt offering				0
Repayments of debt			(3)	(2)
Dividend payments			0	0
Net proceeds from issuance of Tesoro Logistics LP common units			0
Distributions to noncontrolling interest			0	0
Purchases of common stock			0	0
Net intercompany borrowings (repayments)			(325)	(283)
Distributions to TLLP unitholders and general partner			12	10
Other financing activities			37	16
Net cash used in financing activities			(279)	(259)
Increase (Decrease) in Cash And Cash Equivalents			(1)	(221)
Cash and Cash Equivalents, Beginning of Period			943	1,161
Cash and Cash Equivalents, End of Period	942	940	942	940
Non- Guarantors
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities			270	148
Cash Flows From (Used In) Investing Activities
Capital expenditures			(157)	(66)
Acquisitions			(6)	0
Intercompany notes, net			0	0
Other investing activities			0	9
Net cash used in investing activities			(163)	(57)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements			262	228
Repayments on revolving credit agreements			(223)
Proceeds from debt offering				0
Repayments of debt			0	0
Dividend payments			0	0
Net proceeds from issuance of Tesoro Logistics LP common units			45
Distributions to noncontrolling interest			(90)	(42)
Purchases of common stock			0	0
Net intercompany borrowings (repayments)			(90)	(33)
Distributions to TLLP unitholders and general partner			(33)	(18)
Other financing activities			1	(4)
Net cash used in financing activities			(128)	131
Increase (Decrease) in Cash And Cash Equivalents			(21)	222
Cash and Cash Equivalents, Beginning of Period			57	77
Cash and Cash Equivalents, End of Period	36	299	36	299
Eliminations
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities			0	0
Cash Flows From (Used In) Investing Activities
Capital expenditures			0	0
Acquisitions			0	0
Intercompany notes, net			(415)	(316)
Other investing activities			0	0
Net cash used in investing activities			(415)	(316)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements			0	0
Repayments on revolving credit agreements			0
Proceeds from debt offering				0
Repayments of debt			0	0
Dividend payments			0	0
Net proceeds from issuance of Tesoro Logistics LP common units			0
Distributions to noncontrolling interest			0	0
Purchases of common stock			0	0
Net intercompany borrowings (repayments)			415	316
Distributions to TLLP unitholders and general partner			0	0
Other financing activities			0	0
Net cash used in financing activities			415	316
Increase (Decrease) in Cash And Cash Equivalents			0	0
Cash and Cash Equivalents, Beginning of Period			0	0
Cash and Cash Equivalents, End of Period	$ 0	$ 0	$ 0	$ 0

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Tesoro Logistics LP (Notes)

6 Months Ended

Jun. 30, 2015

Variable Interest Entity, Measure of Activity [Abstract]

TESORO LOGISTICS LP

TESORO LOGISTICS LP

TLLP is a publicly traded limited partnership that was formed to own, operate, develop and acquire logistics assets. Its assets are integral to the success of Tesoro’s refining and marketing operations and are used to gather crude oil and natural gas, process natural gas, and distribute, transport and store crude oil and refined products. TLLP’s gathering assets consist of crude oil gathering systems in the Williston Basin located in North Dakota and natural gas gathering systems in the Green River and Uinta Basins located in Wyoming and Utah. Its processing assets include four gas processing complexes and a fractionation facility in or around the Green River and Uinta Basins. Its terminalling and transportation assets consist of:

• 24 crude oil and refined products terminals and storage facilities in the western and midwestern United States;

• four marine terminals in California;

• 130 miles of pipelines, which transport products and crude oil from Tesoro’s refineries to nearby facilities in Salt Lake City, Utah and Los Angeles, California;

• the Northwest Products Pipeline, which includes a regulated common carrier products pipeline running from Salt Lake City, Utah to Spokane, Washington and a jet fuel pipeline to the Salt Lake City International Airport;

• a rail-car unloading facility in Washington;

• a petroleum coke handling and storage facility in Los Angeles, California; and

• a regulated common carrier refined products pipeline system connecting Tesoro’s Kenai refinery terminals to terminals in Anchorage, Alaska.

TLLP provides us with various pipeline transportation, trucking, terminal distribution, storage and coke-handling services under long-term, fee-based commercial agreements. Each of these agreements, with the exception of the storage and transportation services agreement, contain minimum volume commitments. We do not provide financial or equity support through any liquidity arrangements or financial guarantees to TLLP.

Tesoro Logistics GP, LLC (“TLGP”), our wholly-owned subsidiary, serves as the general partner of TLLP. We held an approximate 36% interest in TLLP at both June 30, 2015 and December 31, 2014, including a 2% general partner interest and all of the incentive distribution rights. This interest at June 30, 2015 includes 28,181,748 common units and 1,631,448 general partner units.

TLLP acquired assets related to, and entities engaged in, natural gas gathering, transportation and processing in Wyoming, Colorado, Utah, and North Dakota (the “Rockies Natural Gas Business”) through its acquisition of QEP Field Services, LLC (“QEPFS”) from QEP Resources, Inc. on December 2, 2014 for $2.5 billion. At the acquisition date, QEPFS held an approximate 56% limited partner interest in QEPM, consisting of 3,701,750 common units and 26,705,000 subordinated units, and 100% of QEPM’s general partner, QEP Midstream Partners GP, LLC (“QEPM GP”), which itself held a 2% general partner interest and all of the incentive distribution rights in QEPM. All intercompany transactions with TLLP and QEPM are eliminated upon consolidation.

On April 6, 2015, TLLP entered into an Agreement and Plan of Merger (the “Merger Agreement”) with TLGP, QEPFS, TLLP Merger Sub LLC (“Merger Sub”), QEPM, and QEPM GP. In July 2015, TLLP and QEPM completed the transaction, in which the Merger Sub merged with and into QEPM, with QEPM surviving the merger as a wholly owned subsidiary of TLLP (the “Merger”). Following the Merger, QEPM GP remains the general partner of QEPM, and all outstanding common units representing limited partnership interests in QEPM other than QEPM Common Units held by QEPFS (the “QEPM Common Units”) were converted into the right to receive 0.3088 common units representing limited partnership interests in TLLP (the “TLLP Common Units”). The Merger was completed July 22, 2015 and TLLP issued approximately 7.1 million TLLP Common Units to QEPM unitholders. No fractional TLLP Common Units were issued in the Merger, and holders of QEPM Common Units other than QEPFS received cash in lieu of fractional TLLP Common Units.

TLLP’s allocation of the Rockies Natural Gas Business acquisition’s $2.5 billion purchase price remains preliminary as of June 30, 2015. During the six months ended June 30, 2015, the original purchase price was increased by $6 million for the settlement of acquisition date net working capital amounts. Finalization of the purchase price allocation is pending and adjustments can be made through the end of TLLP’s measurement period, which is not to exceed one year from the acquisition date. The table below reflects the preliminary acquisition date purchase price allocation as of June 30, 2015 (in millions):

Cash	$	32
Accounts receivable	120
Prepayments and other	8
Property, plant and equipment	1,735
Acquired intangibles	976
Other noncurrent assets (a)	233
Accounts payable	(72		)
Other current liabilities	(50		)
Other noncurrent liabilities	(34		)
Noncontrolling interest	(432		)
Total Purchase Price	$	2,516

____________________

(a) Other noncurrent assets include $153 million of goodwill.

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions		Jun. 30, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents		$ 978	$ 1,000
Receivables, net of allowance for doubtful accounts		1,305	1,435
Inventories		2,444	2,439
Prepayments and other current assets		171	200
Total Current Assets		4,898	5,074
Net Property, Plant and Equipment		9,294	9,045
OTHER NONCURRENT ASSETS
Acquired intangibles, net		1,200	1,222
Other, net		1,299	1,150
Total Other Noncurrent Assets, Net		2,499	2,372
Total Assets		16,691	16,491
Current Liabilities
Accounts payable		1,955	2,470
Current maturities of debt, net of unamortized issuance costs		403	6
Other current liabilities		1,046	990
Total Current Liabilities		3,404	3,466
Deferred Income Taxes		1,179	1,098
Other Noncurrent Liabilities		917	790
Debt, Net of Unamortized Issuance Costs		$ 3,808	$ 4,161
Commitments and Contingencies (Note 10)
Tesoro Corporation Stockholders’ Equity
Common stock, par value $0.162/3; authorized 200,000,000 shares; 158,379,915 shares issued (156,627,604 in 2014)		$ 26	$ 26
Additional paid-in capital		1,331	1,255
Retained earnings		5,262	4,642
Treasury stock, 35,306,277 common shares (31,677,195 in 2014), at cost		(1,633)	(1,320)
Accumulated other comprehensive loss		(149)	(149)
Total Tesoro Corporation Stockholders’ Equity		4,837	4,454
Noncontrolling Interest		2,546	2,522
Total Equity	[1]	7,383	6,976
Total Liabilities and Equity		$ 16,691	$ 16,491

[1] We have 5.0 million shares of preferred stock authorized with no par value per share. No shares of preferred stock were outstanding as of June 30, 2015 and December 31, 2014.

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Stock-Based Compensation (Notes)

6 Months Ended

Jun. 30, 2015

Share-based Compensation [Abstract]

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION

Stock-based compensation expense, including discontinued operations, was as follows (in millions):

	Three Months Ended June 30,					Six Months Ended June 30,
	2015			2014		2015		2014
Stock appreciation rights (a)	$	(5	)	$	13	$	10	$	(5	)
Performance share awards (b)	2			7		6		4
Market stock units (c)	7			5		12		8
Other stock-based awards (d)	3			1		7		1
Total Stock-Based Compensation Expense	$	7		$	26	$	35	$	8

____________________

(a) We paid cash of $22 million and $14 million to settle 0.4 million and 0.5 million SARs that were exercised during the six months ended June 30, 2015 and 2014, respectively. We had $48 million and $60 million recorded in accrued liabilities associated with our SARs awards at June 30, 2015 and December 31, 2014, respectively.

(b) We granted 0.1 million market condition performance share awards at a weighted average grant date fair value of $117.96 per share under the amended and restated 2011 Long-Term Incentive Plan (“2011 Plan”) during the six months ended June 30, 2015.

(c) We granted 0.4 million market stock units at a weighted average grant date fair value of $114.57 per unit under the 2011 Plan during the six months ended June 30, 2015.

(d) We have aggregated expenses for certain award types as they are not considered significant.

The income tax effect recognized in the income statement for stock-based compensation was a benefit of $3 million and $9 million for the three months ended June 30, 2015 and 2014, and a benefit of $14 million and $2 million for the six months ended June 30, 2015 and 2014, respectively. The reduction in current taxes payable recognized from tax deductions resulting from exercises and vestings under all of our stock-based compensation arrangements totaled $9 million and $30 million for the three months ended June 30, 2015 and 2014, respectively, and $63 million and $33 million for the six months ended June 30, 2015 and 2014, respectively.

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Aug. 03, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	TESORO CORP /NEW/
Entity Central Index Key	0000050104
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Amendment Flag	false
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
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 Common Stock, Shares Outstanding		123,096,730

XML

Operating Segments (Notes)

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

OPERATING SEGMENTS

OPERATING SEGMENTS

We changed our operating segment presentation in the second quarter of 2015 to reflect the changing nature of our underlying assets, operations and how our chief operating decision maker (“CODM”) manages our business. In previous periods, a portion of our marketing business related to sales in unbranded or wholesale channels was presented within our refining operating segment. Our branded operations represent the assets and operations that were previously shown as the retail segment. Upon considering the changes in our business, including the transition from company-owned retail operations to multi-site operator model, we assessed how our CODM evaluates the business, assesses performance and allocates resources. From this analysis, we believe presentation of a marketing segment inclusive of both unbranded and branded marketing operations is appropriate. As of June 30, 2015, we revised our operating segments to include refining, TLLP and a realigned marketing segment. Comparable prior period information has been recast to reflect our revised segment presentation. No other changes were deemed necessary to our refining and TLLP segments.

Our refining segment owns and operates six petroleum refineries located in California, Washington, Alaska, North Dakota and Utah that manufacture gasoline and gasoline blendstocks, jet fuel, diesel fuel, residual fuel oil and other refined products. We sell these refined products, together with refined products purchased from third parties, to our marketing segment through terminal facilities and other locations and opportunistically export refined products to foreign markets. TLLP’s assets and operations include certain crude oil gathering assets, natural gas gathering and processing assets and crude oil and refined products terminalling and transportation assets acquired from Tesoro and other third parties. Revenues from the TLLP segment are generated by charging fees for gathering crude oil and natural gas, for processing natural gas, and for terminalling, transporting and storing crude oil, and refined products. During 2014, we converted our company-operated retail locations to multi-site operators (“MSOs”) and retained the transportation fuel sales. Our marketing segment sells gasoline and diesel fuel through branded MSOs and jobber/dealers in 16 states as well as unbranded or wholesale channels through terminal facilities and other locations. Since we do not have significant operations in foreign countries, revenue generated and long-lived assets located in foreign countries are not material to our operations.

We evaluate the performance of our segments based primarily on segment operating income. Segment operating income includes those revenues and expenses that are directly attributable to management of the respective segment. TLLP and marketing revenues include intersegment transactions with our refining segment. Income taxes, other income, net, interest and financing costs, net, corporate depreciation and corporate general and administrative expenses are excluded from segment operating income.

Segment information related to continuing operations is as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In millions)
Revenues
Refining:
Refined products	$	7,499		$	10,499		$	13,327		19,990
Crude oil resales and other	309			354			608			626
TLLP:
Gathering	89			27			166			52
Processing	67			—			134			—
Terminalling and transportation	119			106			238			208
Marketing:
Fuel (a)	5,051			6,649			8,999			12,313
Other non-fuel (b)	16			69			32			130
Intersegment sales	(4,918		)	(6,600		)	(8,809		)	(12,282		)
Total Revenues	$	8,232		$	11,104		$	14,695		$	21,037
Segment Operating Income
Refining (c)	$	753		$	358		$	936		$	538
TLLP (d)	109			48			217			108
Marketing (c)	212			88			345			112
Total Segment Operating Income	1,074			494			1,498			758
Corporate and unallocated costs (e)	(65		)	(84		)	(149		)	(110		)
Operating Income	1,009			410			1,349			648
Interest and financing costs, net (f)	(54		)	(41		)	(109		)	(118		)
Other income, net	3			3			2			2
Earnings Before Income Taxes	$	958		$	372		$	1,242		$	532
Depreciation and Amortization Expense
Refining	$	122		$	104		$	241		$	205
TLLP	44			17			88			33
Marketing	11			10			23			20
Corporate	5			4			9			7
Total Depreciation and Amortization Expense	$	182		$	135		$	361		$	265
Capital Expenditures
Refining	$	148		$	94		$	332		$	162
TLLP	77			48			143			74
Marketing	8			13			12			18
Corporate	4			12			10			16
Total Capital Expenditures	$	237		$	167		$	497		$	270

________________

(a) Federal and state motor fuel taxes on sales by our marketing segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $146 million and $152 million for the three months ended June 30, 2015 and 2014, respectively, and $286 million and $293 million for the six months ended June 30, 2015 and 2014, respectively.

(b) Includes merchandise revenue for the three and six months ended June 30, 2014.

(c) Our refining segment uses RINs to satisfy its obligations under the Renewable Fuels Standard, in addition to physically blending required biofuels. Effective April 1, 2013, we changed our intersegment pricing methodology and no longer reduced the amount marketing pays for the biofuels by the market value of the RINs due to significant volatility in the value of RINs. At the end of 2014, given the price of RINs has become more transparent in the price of biofuels, we determined our intersegment pricing methodology should include the market value of RINs as a reduction to the price our marketing segment pays to our refining segment. We made this change effective January 1, 2015. We have not adjusted financial information presented for our refining and marketing segments for the three or six month periods ended June 30, 2014. Had we made this change effective January 1, 2014, operating income in our refining segment would have been reduced by $31 million and $59 million with a corresponding increase to operating income in our marketing segment for the three and six months ended June 30, 2014, respectively.

(d) We present TLLP’s segment operating income net of general and administrative expenses totaling $15 million and $4 million representing TLLP’s corporate costs for the three months ended June 30, 2015 and 2014, respectively, and $27 million and $8 million for the six months ended June 30, 2015 and 2014, respectively, that are not allocated by TLLP to its operating segments.

(e) Includes stock-based compensation expense of $7 million and $26 million for the three months ended June 30, 2015 and 2014, respectively, and $35 million and $8 million for the six months ended June 30, 2015 and 2014, respectively. The significant impact to stock-based compensation expense during the three and six months ended June 30, 2015 compared to the prior period is primarily a result of changes in Tesoro’s stock price.

(f) Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 5.50% Senior Notes due 2019 during the six months ended June 30, 2014.

The following table details our identifiable assets related to continuing operations:

	June 30, 2015		December 31, 2014
Identifiable Assets Related to Continuing Operations:	(In millions)
Refining	$	9,531	$	9,467
TLLP	4,809		4,765
Marketing	1,226		1,048
Corporate	1,125		1,211
Total Assets	$	16,691	$	16,491

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Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Tesoro Corporation Stockholders’ Equity
Common stock, par value (dollar per share)	$ 0.167	$ 0.167
Common stock, authorized shares (shares)	200,000,000	200,000,000
Common stock, shares issued (shares)	158,379,915	156,627,604
Treasury stock, common shares (shares)	35,306,277	31,667,195
Current Assets
Cash and cash equivalents	$ 978	$ 1,000
Property, Plant and Equipment, Net
Net Property, Plant and Equipment	9,294	9,045
OTHER NONCURRENT ASSETS
Acquired intangibles, net	1,200	1,222
Other, net	1,299	1,150
Long-term Debt, Net of Unamortized Issuance Costs
Debt, Net of Unamortized Issuance Costs	3,808	4,161
Tesoro Logistics LP
Current Assets
Cash and cash equivalents	13	19
Property, Plant and Equipment, Net
Net Property, Plant and Equipment	3,375	3,306
OTHER NONCURRENT ASSETS
Acquired intangibles, net	959	973
Other, net	249	251
Long-term Debt, Net of Unamortized Issuance Costs
Debt, Net of Unamortized Issuance Costs	$ 2,586	$ 2,544

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Fair Value Measurements (Notes)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

We classify financial assets and liabilities according to the fair value hierarchy. Financial assets and liabilities classified as level 1 instruments are valued using quoted prices in active markets for identical assets and liabilities. Level 2 instruments are valued using quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices, such as liquidity, that are observable for the asset or liability. Our level 2 instruments include derivatives valued using market quotations from independent price reporting agencies, third-party brokers and commodity exchange price curves that are corroborated with market data. Level 3 instruments are valued using significant unobservable inputs that are not supported by sufficient market activity. We do not have any financial assets or liabilities classified as level 3 at June 30, 2015 or December 31, 2014.

Our financial assets and liabilities measured at fair value on a recurring basis include derivative instruments. Additionally, our financial liabilities include obligations for Renewable Identification Numbers (“RINs”) and cap and trade emission credits for the state of California (together with RINs, our “Environmental Credit Obligations”). See Note 6 for further information on our derivative instruments. Our Environmental Credit Obligations represent the estimated fair value amount at each balance sheet date for which we do not have sufficient RINs and California cap and trade credits to satisfy our obligations to the U.S. Environmental Protection Agency (“EPA”) and the state of California, respectively. RINs are assigned to biofuels produced or imported into the U.S. as required by the EPA, which sets annual quotas for the percentage of biofuels that must be blended into transportation fuels consumed in the U.S. As a producer of petroleum transportation fuels, we are required to blend biofuels into the products we produce at a rate that will meet the EPA’s quota. We must purchase RINs in the open market to satisfy the requirement if we are unable to blend at that rate. Our liability for cap and trade emission credits for the state of California represent the deficit of credits to satisfy emission reduction requirements mandated in California’s Assembly Bill 32 for each period which stationary or transportation fuel carbon emissions exceed the level allowed by the regulation.

Financial assets and liabilities recognized at fair value in our condensed consolidated balance sheets by level within the fair value hierarchy were as follows (in millions):

	June 30, 2015
	Level 1		Level 2		Level 3		Netting and Collateral (a)			Total
Assets:
Commodity Futures Contracts	$	375	$	13	$	—	$	(327	)	$	61
Commodity OTC Swap Contracts	—		3		—		—			3
Commodity Forward Contracts	—		1		—		—			1
Total Assets	$	375	$	17	$	—	$	(327	)	$	65
Liabilities:
Commodity Futures Contracts	$	391	$	12	$	—	$	(386	)	$	17
Commodity OTC Swap Contracts	—		1		—		—			1
Commodity Forward Contracts	—		1		—		—			1
Environmental Credit Obligations	—		30		—		—			30
Total Liabilities	$	391	$	44	$	—	$	(386	)	$	49

	December 31, 2014
	Level 1		Level 2		Level 3		Netting and Collateral (a)			Total
Assets:
Commodity Futures Contracts	$	1,165	$	36	$	—	$	(1,136	)	$	65
Commodity Forward Contracts	—		3		—		—			3
Total Assets	$	1,165	$	39	$	—	$	(1,136	)	$	68
Liabilities:
Commodity Futures Contracts	$	1,011	$	14	$	—	$	(1,024	)	$	1
Commodity OTC Swap Contracts	—		1		—		—			1
Commodity Forward Contracts	—		1		—		—			1
Environmental Credit Obligations	—		20		—		—			20
Total Liabilities	$	1,011	$	36	$	—	$	(1,024	)	$	23

________________

(a) Certain of our derivative contracts, under master netting arrangements, include both asset and liability positions. We offset both the fair value amounts and any related cash collateral amounts recognized for multiple derivative instruments executed with the same counterparty when there is a legally enforceable right and an intention to settle net or simultaneously. As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions.

We believe the carrying value of our other financial instruments, including cash and cash equivalents, receivables, accounts payable and certain accrued liabilities approximate fair value. Our fair value assessment incorporates a variety of considerations, including the short-term duration of the instruments (less than one percent of our trade receivables and payables are outstanding for greater than 90 days), and the expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk. The borrowings under the Tesoro Corporation revolving credit facility (the “Revolving Credit Facility”), the TLLP senior secured revolving credit agreement (the “TLLP Revolving Credit Facility”) and our term loan facility agreement (the “Term Loan Facility”), which include variable interest rates, approximate fair value. The fair value of our fixed rate debt is based on prices from recent trade activity and is categorized in level 2 of the fair value hierarchy. The carrying values of our debt were approximately$4.3 billion at both June 30, 2015 and December 31, 2014, and the fair values of our debt were approximately $4.4 billion and $4.3 billion at June 30, 2015 and December 31, 2014, respectively. These carrying and fair values of our debt do not include the unamortized issuance costs associated with our total debt.

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Derivative Instruments (Notes)

6 Months Ended

Jun. 30, 2015

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

DERIVATIVE INSTRUMENTS

DERIVATIVE INSTRUMENTS

In the ordinary course of business, our profit margins, earnings and cash flows are impacted by the timing, direction and overall change in pricing for commodities used throughout our operations. We use non-trading derivative instruments to manage our exposure to the following:

• price risks associated with the purchase or sale of feedstocks, refined products and energy supplies related to our refineries, terminals, marketing fuel inventory and customers;

• price risks associated with inventories above or below our target levels;

• future emission credit requirements; and

• exchange rate fluctuations on our purchases of Canadian crude oil.

Our accounting for derivative instruments depends on whether the underlying commodity will be used or sold in the normal course of business. For contracts where the crude oil or refined products are expected to be used or sold in the normal course of business, we apply the normal purchase normal sale exception and follow the accrual method of accounting. All other derivative instruments are recorded at fair value using mark-to-market accounting.

Our derivative instruments include forward purchase and sale contracts (“Forward Contracts”), exchange-traded futures (“Futures Contracts”), over-the-counter swaps (“OTC Swap Contracts”), options (“Options”), and over-the-counter options (“OTC Option Contracts”). Forward Contracts are agreements to buy or sell the commodity at a predetermined price at a specified future date. Futures Contracts are standardized agreements, traded on a futures exchange, to buy or sell the commodity at a predetermined price at a specified future date. Options provide the right, but not the obligation to buy or sell the commodity at a specified price in the future. OTC Swap Contracts and OTC Option Contracts require cash settlement for the commodity based on the difference between a contracted fixed or floating price and the market price on the settlement date. Certain of these contracts require cash collateral to be received or paid if our asset or liability position, respectively, exceeds specified thresholds. We believe that we have minimal credit risk with respect to our counterparties.

The following table presents the fair value (in millions) of our derivative instruments as of June 30, 2015 and December 31, 2014. The fair value amounts below are presented on a gross basis and do not reflect the netting of asset and liability positions permitted under the terms of our master netting arrangements including cash collateral on deposit with, or received from, brokers. We offset the recognized fair value amounts for multiple derivative instruments executed with the same counterparty in our financial statements when a legal right of offset exists. As a result, the asset and liability amounts below will not agree with the amounts presented in our condensed consolidated balance sheets.

		Derivative Assets						Derivative Liabilities
	Balance Sheet Location	June 30, 2015			December 31, 2014			June 30, 2015			December 31, 2014
Commodity Futures Contracts	Prepayments and other current assets	$	388		$	1,201		$	403		$	1,025
Commodity OTC Swap Contracts	Receivables	3			—			—			—
Commodity OTC Swap Contracts	Accounts payable	—			—			1			1
Commodity Forward Contracts	Receivables	1			3			—			—
Commodity Forward Contracts	Accounts payable	—			—			1			1
Total Gross Mark-to-Market    Derivatives		392			1,204			405			1,027
Less: Counterparty Netting and    Cash Collateral (a)		(327		)	(1,136		)	(386		)	(1,024		)
Total Net Fair Value of Derivatives		$	65		$	68		$	19		$	3

________________

(a) As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions. Cash collateral amounts are netted with mark-to-market derivative assets.

Gains (losses) for our mark-to market derivatives for the three and six months ended June 30, 2015 and 2014 were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Commodity Futures Contracts	$	(86	)	$	(77	)	$	(43	)	$	(77	)
Commodity OTC Swap Contracts	(2		)	(2		)	(2		)	(3		)
Commodity Forward Contracts	12			3			14			4
Foreign Currency Forward Contracts	—			2			(2		)	—
Total Loss on Mark-to-Market Derivatives	$	(76	)	$	(74	)	$	(33	)	$	(76	)

The income statement location of gains (losses) for our mark-to market derivatives above were as follows (in millions):

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Revenues	$	(6	)	$	—		$	(2	)	$	1
Cost of sales	(70		)	(76		)	(29		)	(77		)
Other income (expense), net	—			2			(2		)	—
Total Loss on Mark-to-Market Derivatives	$	(76	)	$	(74	)	$	(33	)	$	(76	)

Open Long (Short) Positions

The information below presents the net volume of outstanding commodity and other contracts by type of instrument, year of maturity and unit of measure as of June 30, 2015 (units in thousands):

	Contract Volumes by Year of Maturity
Mark-to-Market Derivative Instrument	2015	2016	2017	Unit of Measure
Crude oil, refined products and blending products:
Futures - short	(7,084)	—	—	Barrels
Futures - long	—	200	—	Barrels
OTC Swaps - long	700	900	—	Barrels
Forwards - long	35	—	—	Barrels
Carbon credits:
Futures - long	2,050	1,000	1,000	Tons
Renewable identification numbers:
Futures - short	(400)	—	—	Gallons
Corn:
Futures - short	(3,080)	—	—	Bushels

At June 30, 2015, we had open Forward Contracts to purchase CAD $30 million that matured on July 24, 2015.

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Fair Value Measurements (Policies)

6 Months Ended

Jun. 30, 2015

Fair Value Disclosures [Abstract]

Fair value of financial instruments policy

We classify financial assets and liabilities according to the fair value hierarchy. Financial assets and liabilities classified as level 1 instruments are valued using quoted prices in active markets for identical assets and liabilities. Level 2 instruments are valued using quoted prices for similar assets and liabilities in active markets, and inputs other than quoted prices, such as liquidity, that are observable for the asset or liability. Our level 2 instruments include derivatives valued using market quotations from independent price reporting agencies, third-party brokers and commodity exchange price curves that are corroborated with market data. Level 3 instruments are valued using significant unobservable inputs that are not supported by sufficient market activity.

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Condensed Consolidating Financial Information (Notes)

6 Months Ended

Jun. 30, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

CONDENSED CONSOLIDATING FINANCIAL INFORMATION

CONDENSED CONSOLIDATING FINANCIAL INFORMATION

Separate condensed consolidating financial information of Tesoro Corporation (the “Parent”), subsidiary guarantors and non-guarantors is presented below. At June 30, 2015, Tesoro and certain subsidiary guarantors have fully and unconditionally guaranteed our 4.250% Senior Notes due 2017, 5.375% Senior Notes due 2022, and 5.125% Senior Notes due 2024. TLLP, in which we had a 36% ownership interest as of June 30, 2015, and other subsidiaries have not guaranteed these obligations. As a result of these guarantee arrangements, we are required to present the following condensed consolidating financial information, which should be read in conjunction with the accompanying condensed consolidated financial statements and notes thereto. This information is provided as an alternative to providing separate financial statements for guarantor subsidiaries. Separate financial statements of Tesoro’s subsidiary guarantors are not included because the guarantees are full and unconditional and these subsidiary guarantors are 100% owned and are jointly and severally liable for Tesoro’s outstanding senior notes. The information is presented using the equity method of accounting for investments in subsidiaries. Certain intercompany and intracompany transactions between subsidiaries are presented gross and eliminated in the eliminations column. Additionally, the results of operations of the Hawaii Business have been reported as discontinued operations in these condensed consolidating statements of operations and comprehensive income for the three and six months ended June 30, 2015 and 2014.

Condensed Consolidating Statement of Operations

for the Three Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	9,000		$	750		$	(1,518	)	$	8,232
Costs and Expenses:
Cost of sales	—			7,336			465			(1,403		)	6,398
Operating, selling, general and administrative expenses	2			617			135			(115		)	639
Depreciation and amortization expense	—			136			46			—			182
Loss on asset disposals and impairments	—			4			—			—			4
Operating Income (Loss)	(2		)	907			104			—			1,009
Equity in earnings of subsidiaries	590			48			—			(638		)	—
Interest and financing costs, net	(10		)	(17		)	(27		)	—			(54		)
Other income, net	1			1			1			—			3
Earnings Before Income Taxes	579			939			78			(638		)	958
Income tax expense (benefit) (a)	(3		)	325			12			—			334
Net Earnings from Continuing Operations	582			614			66			(638		)	624
Loss from discontinued operations, net of tax	—			(4		)	—			—			(4		)
Net Earnings	582			610			66			(638		)	620
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			38			—			38
Net Earnings Attributable to Tesoro Corporation	$	582		$	610		$	28		$	(638	)	$	582
Comprehensive Income
Total comprehensive income	$	582		$	610		$	66		$	(638	)	$	620
Less: Noncontrolling interest in comprehensive income	—			—			38			—			38
Comprehensive Income Attributable to Tesoro    Corporation	$	582		$	610		$	28		$	(638	)	$	582

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Statement of Operations

for the Three Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	12,729		$	1,829		$	(3,454	)	$	11,104
Costs and Expenses:
Cost of sales	—			11,572			1,688			(3,393		)	9,867
Operating, selling, general and administrative expenses	3			677			71			(61		)	690
Depreciation and amortization expense	—			117			18			—			135
(Gain) loss on asset disposals and impairments	—			3			(1		)	—			2
Operating Income (Loss)	(3		)	360			53			—			410
Equity in earnings of subsidiaries	231			13			—			(244		)	—
Interest and financing costs, net	(9		)	(24		)	(17		)	9			(41		)
Other income, net	2			1			9			(9		)	3
Earnings Before Income Taxes	221			350			45			(244		)	372
Income tax expense (benefit) (a)	(3		)	127			8			—			132
Net Earnings	224			223			37			(244		)	240
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			16			—			16
Net Earnings Attributable to Tesoro Corporation	$	224		$	223		$	21		$	(244	)	$	224
Comprehensive Income
Total comprehensive income	$	224		$	223		$	37		$	(244	)	$	240
Less: Noncontrolling interest in comprehensive income	—			—			16			—			16
Comprehensive Income Attributable to Tesoro    Corporation	$	224		$	223		$	21		$	(244	)	$	224

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Statement of Operations

for the Six Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	15,999		$	1,664		$	(2,968	)	$	14,695
Costs and Expenses:
Cost of sales	—			13,329			1,126			(2,717		)	11,738
Operating, selling, general and administrative expenses	6			1,226			258			(251		)	1,239
Depreciation and amortization expense	—			270			91			—			361
Loss on asset disposals and impairments	—			8			—			—			8
Operating Income (Loss)	(6		)	1,166			189			—			1,349
Equity in earnings of subsidiaries	747			64			—			(811		)	—
Interest and financing costs, net	(21		)	(35		)	(53		)	—			(109		)
Other income (expense), net	1			(3		)	4			—			2
Earnings Before Income Taxes	721			1,192			140			(811		)	1,242
Income tax expense (benefit) (a)	(6		)	420			16			—			430
Net Earnings from Continuing Operations	727			772			124			(811		)	812
Loss from discontinued operations, net of tax	—			(4		)	—			—			(4		)
Net Earnings	727			768			124			(811		)	808
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			81			—			81
Net Earnings Attributable to Tesoro Corporation	$	727		$	768		$	43		$	(811	)	$	727
Comprehensive Income
Total comprehensive income	$	727		$	768		$	124		$	(811	)	$	808
Less: Noncontrolling interest in comprehensive income	—			—			81			—			81
Comprehensive Income Attributable to Tesoro    Corporation	$	727		$	768		$	43		$	(811	)	$	727

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Statement of Operations

for the Six Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Revenues	$	—		$	24,293		$	3,439		$	(6,695	)	$	21,037
Costs and Expenses:
Cost of sales	—			22,236			3,164			(6,585		)	18,815
Operating, selling, general and administrative expenses	4			1,289			129			(110		)	1,312
Depreciation and amortization expense	—			230			35			—			265
(Gain) loss on asset disposals and impairments	—			2			(5		)	—			(3		)
Operating Income (Loss)	(4		)	536			116			—			648
Equity in earnings of subsidiaries	317			27			—			(344		)	—
Interest and financing costs, net	(17		)	(83		)	(35		)	17			(118		)
Other income, net	2			—			17			(17		)	2
Earnings Before Income Taxes	298			480			98			(344		)	532
Income tax expense (benefit) (a)	(4		)	178			14			—			188
Net Earnings from Continuing Operations	302			302			84			(344		)	344
Loss from discontinued operations, net of tax	—			(1		)	—			—			(1		)
Net Earnings	302			301			84			(344		)	343
Less: Net earnings from continuing operations attributable to    noncontrolling interest	—			—			41			—			41
Net Earnings Attributable to Tesoro Corporation	$	302		$	301		$	43		$	(344	)	$	302
Comprehensive Income
Total comprehensive income	$	302		$	301		$	84		$	(344	)	$	343
Less: Noncontrolling interest in comprehensive income	—			—			41			—			41
Comprehensive Income Attributable to Tesoro    Corporation	$	302		$	301		$	43		$	(344	)	$	302

_________________

(a) The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

Condensed Consolidating Balance Sheet as of June 30, 2015

(In millions)

	Parent		Guarantor Subsidiaries		Non- Guarantors		Eliminations			Consolidated
ASSETS
Current Assets:
Cash and cash equivalents	$	—	$	942	$	36	$	—		$	978
Receivables, net of allowance for doubtful accounts	—		1,059		246		—			1,305
Short-term receivables from affiliates	—		47		—		(47		)	—
Inventories	—		2,218		226		—			2,444
Prepayments and other current assets	42		109		21		(1		)	171
Total Current Assets	42		4,375		529		(48		)	4,898
Net Property, Plant and Equipment	—		5,850		3,444		—			9,294
Investment in Subsidiaries	7,322		418		—		(7,740		)	—
Long-Term Receivables from Affiliates	2,348		—		—		(2,348		)	—
Long-Term Intercompany Note Receivable	—		—		1,376		(1,376		)	—
Other Noncurrent Assets:
Acquired intangibles, net	—		241		959		—			1,200
Other, net	6		1,044		249		—			1,299
Total Other Noncurrent Assets, Net	6		1,285		1,208		—			2,499
Total Assets	$	9,718	$	11,928	$	6,557	$	(11,512	)	$	16,691
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	—	$	1,640	$	315	$	—		$	1,955
Current maturities of debt, net of unamortized issuance costs	397		6		—		—			403
Short-term payables to affiliates	—		—		47		(47		)	—
Other current liabilities	311		612		124		(1		)	1,046
Total Current Liabilities	708		2,258		486		(48		)	3,404
Long-Term Payables to Affiliates	—		2,302		46		(2,348		)	—
Deferred Income Taxes	1,179		—		—		—			1,179
Other Noncurrent Liabilities	432		428		57		—			917
Debt, net of unamortized issuance costs	1,186		36		2,586		—			3,808
Long-Term Intercompany Note Payable	1,376		—		—		(1,376		)	—
Equity-Tesoro Corporation	4,837		6,904		836		(7,740		)	4,837
Equity-Noncontrolling Interest	—		—		2,546		—			2,546
Total Liabilities and Equity	$	9,718	$	11,928	$	6,557	$	(11,512	)	$	16,691

Condensed Consolidating Balance Sheet as of December 31, 2014

(In millions)

	Parent		Guarantor Subsidiaries		Non- Guarantors		Eliminations			Consolidated
ASSETS
Current Assets:
Cash and cash equivalents	$	—	$	943	$	57	$	—		$	1,000
Receivables, net of allowance for doubtful accounts	6		912		517		—			1,435
Short-term receivables from affiliates	—		84		—		(84		)	—
Inventories	—		2,088		351		—			2,439
Prepayments and other current assets	71		115		16		(2		)	200
Total Current Assets	77		4,142		941		(86		)	5,074
Net Property, Plant and Equipment	—		5,666		3,379		—			9,045
Investment in Subsidiaries	6,592		362		—		(6,954		)	—
Long-Term Receivables from Affiliates	2,427		—		—		(2,427		)	—
Long-Term Intercompany Note Receivable	—		—		1,376		(1,376		)	—
Other Noncurrent Assets:
Acquired intangibles, net	—		249		973		—			1,222
Other, net	6		893		251		—			1,150
Total Other Noncurrent Assets, Net	6		1,142		1,224		—			2,372
Total Assets	$	9,102	$	11,312	$	6,920	$	(10,843	)	$	16,491
LIABILITIES AND EQUITY
Current Liabilities:
Accounts payable	$	1	$	1,779	$	690	$	—		$	2,470
Current maturities of debt, net of unamortized issuance costs	—		6		—		—			6
Short-term payables to affiliates	—		—		84		(84		)	—
Other current liabilities	148		711		133		(2		)	990
Total Current Liabilities	149		2,496		907		(86		)	3,466
Long-Term Payables to Affiliates	—		2,399		28		(2,427		)	—
Deferred Income Taxes	1,098		—		—		—			1,098
Other Noncurrent Liabilities	447		296		47		—			790
Debt, net of unamortized issuance costs	1,578		39		2,544		—			4,161
Long-Term Intercompany Note Payable	1,376		—		—		(1,376		)	—
Equity-Tesoro Corporation	4,454		6,082		872		(6,954		)	4,454
Equity-Noncontrolling Interest	—		—		2,522		—			2,522
Total Liabilities and Equity	$	9,102	$	11,312	$	6,920	$	(10,843	)	$	16,491

Condensed Consolidating Statement of Cash Flows for the Six Months EndedJune 30, 2015

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities	$	(26	)	$	663		$	270		$	—		$	907
Cash Flows From (Used In) Investing Activities
Capital expenditures	—			(383		)	(157		)	—			(540		)
Acquisitions	—			—			(6		)	—			(6		)
Intercompany notes, net	415			—			—			(415		)	—
Other investing activities	—			(2		)	—			—			(2		)
Net cash from (used in) investing activities	415			(385		)	(163		)	(415		)	(548		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	—			—			262			—			262
Repayments on revolving credit agreements	—			—			(223		)	—			(223		)
Repayments of debt	—			(3		)	—			—			(3		)
Dividend payments	(107		)	—			—			—			(107		)
Net proceeds from issuance of Tesoro Logistics LP    common units	—			—			45			—			45
Distributions to noncontrolling interest	—			—			(90		)	—			(90		)
Purchases of common stock	(269		)	—			—			—			(269		)
Net intercompany repayments	—			(325		)	(90		)	415			—
Distributions to TLLP unitholders and general partner	21			12			(33		)	—			—
Other financing activities	(34		)	37			1			—			4
Net cash used in financing activities	(389		)	(279		)	(128		)	415			(381		)
Decrease in Cash And Cash Equivalents	—			(1		)	(21		)	—			(22		)
Cash and Cash Equivalents, Beginning of Period	—			943			57			—			1,000
Cash and Cash Equivalents, End of Period	$	—		$	942		$	36		$	—		$	978

Condensed Consolidating Statement of Cash Flows for the Six Months EndedJune 30, 2014

(In millions)

	Parent			Guarantor Subsidiaries			Non- Guarantors			Eliminations			Consolidated
Cash Flows From (Used In) Operating Activities
Net cash from (used in) operating activities	$	(20	)	$	248		$	148		$	—		$	376
Cash Flows From (Used In) Investing Activities
Capital expenditures	—			(194		)	(66		)	—			(260		)
Acquisitions	—			(17		)	—			—			(17		)
Intercompany notes, net	316			—			—			(316		)	—
Other investing activities	—			1			9			—			10
Net cash from (used in) investing activities	316			(210		)	(57		)	(316		)	(267		)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	—			—			228			—			228
Proceeds from debt offering	300			—			—			—			300
Repayments of debt	(300		)	(2		)	—			—			(302		)
Dividend payments	(65		)	—			—			—			(65		)
Distributions to noncontrolling interest	—			—			(42		)	—			(42		)
Purchases of common stock	(200		)	—			—			—			(200		)
Net intercompany repayments	—			(283		)	(33		)	316			—
Distributions to TLLP unitholders and general partner	8			10			(18		)	—			—
Other financing activities	(39		)	16			(4		)	—			(27		)
Net cash from (used in) financing activities	(296		)	(259		)	131			316			(108		)
Increase (Decrease) in Cash And Cash Equivalents	—			(221		)	222			—			1
Cash and Cash Equivalents, Beginning of Period	—			1,161			77			—			1,238
Cash and Cash Equivalents, End of Period	$	—		$	940		$	299		$	—		$	1,239

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Commitments and Contingencies (Notes)

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Environmental Liabilities

We are incurring and expect to continue to incur expenses for environmental remediation liabilities at a number of currently and previously owned or operated refining, pipeline, terminal and retail station properties. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Additionally, we have recognized environmental remediation liabilities assumed in past acquisitions from the prior owners that include amounts estimated for site cleanup and monitoring activities arising from operations at refineries, certain terminals and pipelines, and retail stations prior to the dates of our acquisitions. Our environmental accruals are based on estimates including engineering assessments, and it is possible that our projections will change and that additional costs will be recorded as more information becomes available.

Our accruals for environmental expenditures totaled$244 million and $274 million at June 30, 2015 and December 31, 2014, respectively, including $22 millionand $32 million for TLLP, respectively. These accruals include $201 million and $216 million at June 30, 2015 and December 31, 2014, respectively, related to amounts estimated for site cleanup activities arising from operations at our Martinez refinery and operations of assets acquired in the Los Angeles Acquisition prior to their respective acquisition dates. We cannot reasonably determine the full extent of remedial activities that may be required at the Martinez refinery and for assets acquired in the Los Angeles Acquisition, and it is possible that we will identify additional investigation and remediation costs for site cleanup activities as more information becomes available. The environmental remediation liabilities assumed in the Los Angeles Acquisition include amounts estimated for site cleanup activities and monitoring activities arising from operations at the Carson refinery, certain terminals and pipelines, and retail stations prior to our acquisition on June 1, 2013. These estimates for environmental liabilities are based on third-party assessments and available information. Our estimates for site cleanup activities reflect amounts for which we are responsible under applicable cost-sharing arrangements.

On July 10, 2015, a federal court issued an order denying coverage pursuant to insurance policies for environmental remediation liabilities at our Martinez refinery and those liabilities are included in our accruals above. The insurer had filed a declaratory relief action challenging coverage of the primary policy assigned to us when we acquired the refinery. The policies provide for coverage up to $190 million for expenditures in excess of $50 million in self-insurance. We have not recognized possible insurance recoveries under the policies and are evaluating appealing the order.

Other Contingencies

Washington Refinery Fire. The naphtha hydrotreater unit at our Washington refinery was involved in a fire in April 2010, which fatally injured seven employees and rendered the unit inoperable. The Washington State Department of Labor & Industries (“L&I”) initiated an investigation of the incident. L&I completed its investigation in October 2010, issued a citation and assessed a $2.4 million fine, which we appealed. L&I reassumed jurisdiction of the citation and affirmed the allegations in December 2010. We disagree with L&I’s characterizations of operations at our Washington refinery and believe, based on available evidence and scientific reviews, that many of the agency’s conclusions are mistaken. We filed an appeal of the citation in January 2011. In separate September 2013, November 2013 and February 2015 orders, the Board of Industrial Insurance Appeals (“BIIA”) Judge granted partial summary judgment in our favor rejecting 33 of the original 44 allegations in the citation as lacking legal or evidentiary support. A hearing on the remaining 11 allegations started on July 21, 2015, and we expect the Judge to issue a recommended decision for the BIIA’s review in late 2015 or early 2016. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution.

On November 20, 2013, we received a notice of violation (“NOV”) from the EPA alleging 46 violations of the Clean Air Act Risk Management Plan requirements at our Washington refinery. The EPA conducted an investigation of the refinery in 2011, following the April 2010 fire in the naphtha hydrotreater unit. We have provided a response to the NOV and additional information to the EPA. While we cannot currently estimate the amount or timing of the resolution of this matter, we believe the outcome will not have a material impact on our liquidity, financial position, or results of operations.

In January 2015, we received notice and demand for indemnity from the previous owner of our Washington refinery for damages incurred in the civil litigation brought by the families of those fatally wounded in the April 2010 refinery fire. We settled our involvement in civil litigation in 2012. Arbitration proceedings were initiated in March 2015 after an unsuccessful mediation and we intend to vigorously defend ourselves against this claim.

Environmental. The EPA has alleged that we have violated certain Clean Air Act regulations at our Alaska, Washington, Martinez, North Dakota and Utah refineries. We also retained the responsibility for resolving similar allegations relating to our former Hawaii refinery, which we sold in September 2013. We previously received a NOV in March 2011 from the EPA alleging violations of Title V of the Clean Air Act at our Alaska refinery, which arose from a 2007 state of Alaska inspection and inspections by the EPA in 2008 and 2010. We also previously received NOVs in 2005 and 2008 alleging violations of the Clean Air Act at our Washington refinery. We are continuing discussions of all EPA claims with the EPA and the U.S. Department of Justice. We have established an accrual for this matter although we cannot currently estimate the final amount or timing of its resolution. The ultimate resolution of these matters could have a material impact on us, as we may be required to incur material capital expenditures at our operating refineries. However, we do not believe that the final outcome of this matter will have a material impact on our liquidity, results of operations or financial position.

Other Matters

In the ordinary course of business, we become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. Large, and sometimes unspecified, damages or penalties may be sought from us in some matters. We have not established accruals for these matters unless a loss is probable, and the amount of loss is currently estimable.

Legal. We are a defendant, along with other manufacturing, supply and marketing defendants, in a lawsuit brought by the Orange County Water District, alleging methyl tertiary butyl ether (“MTBE”) contamination in groundwater. This matter, originally filed in 2004, is proceeding in the United States District Court of the Southern District of New York. The defendants are being sued for having manufactured MTBE and having manufactured, supplied and distributed gasoline containing MTBE. The plaintiff alleges, in part, that the defendants are liable for manufacturing or distributing a defective product. The suit generally seeks individual, unquantified compensatory and punitive damages and attorney’s fees. We intend to vigorously assert our defenses against this claim. While we cannot currently estimate the final amount or timing of the resolution of this matter, we have established an accrual and believe that the outcome will not have a material impact on our liquidity, financial position, or results of operations.

Environmental. Certain non-governmental organizations filed a Request for Agency Action (the “Request”) with the Utah Department of Environmental Quality (“UDEQ”) concerning our Utah refinery in October 2012. The Request challenges the UDEQ’s permitting of our refinery conversion project alleging that the permits do not conform to the requirements of the Clean Air Act. As the permittee, we are the real party in interest and are defending the permits with UDEQ. In orders issued on July 10 and September 9, 2014, the UDEQ Administrative Law Judge (“ALJ”) recommended the Executive Director of UDEQ deny Petitioners’ request for a stay of the project and dismiss their challenge to the permit. The Executive Director’s final decision approving the ALJ’s recommended order is currently under appeal. While we cannot estimate the timing or estimated amount, if any, associated with the outcome of this matter, we do not believe it will have a material adverse impact on our liquidity, financial position, or results of operations.

We have investigated conditions at certain active wastewater treatment units at our Martinez refinery pursuant to an order received in 2004 from the San Francisco Bay Regional Water Quality Control Board that named us as well as two previous owners of the Martinez refinery. We cannot currently estimate the amount of the ultimate resolution of the order, but we believe it will not have a material adverse impact on our liquidity, financial position, or results of operations.

Tax. We are subject to extensive federal, state and foreign tax laws and regulations. Newly enacted tax laws and regulations, and changes in existing tax laws and regulations, could result in increased expenditures in the future. We are also subject to audits by federal, state and foreign taxing authorities in the normal course of business. It is possible that tax audits could result in claims against us in excess of recorded liabilities. However, we believe that resolution of any such claim(s) would not have a material impact on our liquidity, financial position, or results of operations.

Unrecognized tax benefits increased by approximately $150 million in the second quarter of 2015 for tax positions taken on amended returns filed for 2006-2010. The positions taken exclude certain tax credits, for blending biofuels into refined products, from taxable income. These tax credits were received from the federal government during the years being amended. However, due to the complex and uncertain nature of the issue, we are unable to conclude that it is more likely than not that we will sustain the claims. Therefore, we have neither recognized a tax benefit, nor recorded a receivable for this item.

It is reasonably possible that unrecognized tax benefits may decrease by as much as $8 million in the next twelve months, related primarily to state apportionment matters. However, since the tax was fully paid in prior years, the unrecognized tax benefit would be eliminated without impacting expense.

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Stockholders' Equity Stockholders' Equity, Share Repurchases and Dividends (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Aug. 03, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Number of shares purchased (shares)				3.1
Share repurchases, value				$ 269
Dividend payments		$ 53	$ 32	$ 107	$ 65
Dividends declared (dollars per share)		$ 0.425	$ 0.250	$ 0.850	$ 0.500
Subsequent Event
Dividends declared (dollars per share)	$ 0.500
Dividends payable, date declared	Aug. 03, 2015
Dividends, date to be paid	Sep. 14, 2015
Dividends, date of record	Aug. 28, 2015
2014 Share repurchase program
Number of shares purchased (shares)					3.7
Share repurchases, value					$ 200

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Debt (Notes)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

DEBT

DEBT

Our debt balance, net of unamortized issuance costs, at June 30, 2015 and December 31, 2014 was as follows (in millions):

	June 30, 2015			December 31, 2014
Total debt (a)	$	4,291		$	4,255
Unamortized issuance costs (b) (c)	(80		)	(88		)
Current maturities, net of unamortized issuance costs	(403		)	(6		)
Debt, Net of Current Maturities and Unamortized Issuance Costs	$	3,808		$	4,161

________________

(a) Total debt related to TLLP, which is non-recourse to Tesoro, except for TLGP, was $2.6 billion at both June 30, 2015 and December 31, 2014.

(b) Includes unamortized premium associated with TLLP’s 5.875% Senior Notes due 2020 of $4 million and $5 million as of June 30, 2015 and December 31, 2014, respectively.

(c) The Company adopted ASU 2015-03 in the first quarter of 2015 and applied the changes retrospectively to the prior period presented. Adoption of this standard has resulted in the reclassification of $93 million of unamortized debt issuance costs from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of $84 million are recorded as a reduction to debt on the balance sheet at June 30, 2015. See Note 1 for further discussion.

Revolving Credit Facilities

We had available capacity under our credit facilities as follows at June 30, 2015 (in millions):

	Total Capacity		Amount Borrowed as of June 30, 2015		Outstanding Letters of Credit		Available Capacity		Expiration
Tesoro Corporation Revolving Credit Facility (a)	$	3,000	$	—	$	136	$	2,864	November 18, 2019
TLLP Revolving Credit Facility	900		299		—		601		December 2, 2019
Letter of Credit Facilities	2,035		—		80		1,955
Total credit facilities	$	5,935	$	299	$	216	$	5,420

________________

(a) Borrowing base is the lesser of the amount of the periodically adjusted borrowing base or the agreement’s total capacity of $3.0 billion.

As of June 30, 2015, our credit facilities were subject to the following expenses and fees:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Tesoro Corporation Revolving Credit Facility    ($3.0 billion) (a)	0.19%	1.50%	3.25%	0.50%	0.375%
TLLP Revolving Credit Facility ($900 million) (b)	0.19%	2.50%	3.25%	1.50%	0.50%

________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing. The applicable margin on the Revolving Credit Facility varies primarily based upon our senior secured credit ratings. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

(b) TLLP has the option to elect if the borrowings will bear interest at either, a base rate plus the base rate margin or a Eurodollar rate, for the applicable period, plus the Eurodollar margin at the time of the borrowing. The applicable margin varies based upon a certain leverage ratio, as defined by the TLLP Revolving Credit Facility. TLLP incurs commitment fees for the unused portion of the TLLP Revolving Credit Facility. Letters of credit outstanding under the TLLP Revolving Credit Facility incur fees at the Eurodollar margin rate.

Revolving Credit Facilities

Tesoro Corporation Revolving Credit Facility. Our Revolving Credit Facility provides for borrowings (including letters of credit) up to the lesser of the amount of a periodically adjusted borrowing base, which consists of Tesoro’s eligible cash and cash equivalents, receivables and petroleum inventories, net of the standard reserve as defined, or the Revolving Credit Facility’s total capacity of $3.0 billion. We had unused credit availability of approximately 95% of the eligible borrowing base at June 30, 2015. Our Revolving Credit Facility is guaranteed by substantially all of Tesoro’s active domestic subsidiaries, excluding TLGP, TLLP and its subsidiaries, and certain foreign subsidiaries, and is secured by substantially all of Tesoro’s active domestic subsidiaries’ crude oil and refined product inventories, cash and receivables.

Our Revolving Credit Facility, as amended, senior notes and Term Loan Facility each limit our ability, under certain circumstances, to make certain restricted payments (as defined in our debt agreements), which include dividends, purchases of our stock or voluntary prepayments of subordinate debt. The aggregate amount of restricted payments cannot exceed an amount defined in each of the debt agreements.

The Revolving Credit Facility allows us to obtain letters of credit under separate letter of credit agreements for foreign crude oil purchases. Our uncommitted letter of credit agreements had $80 million outstanding as of June 30, 2015. Letters of credit outstanding under these agreements incur fees ranging from 0.40% to 1.00% and are secured by the crude oil inventories for which they are issued. Capacity under these letter of credit agreements is available on an uncommitted basis and can be terminated by either party at any time.

TLLP Revolving Credit Facility. The TLLP Revolving Credit Facility provided for total loan availability of $900 million as of June 30, 2015, and TLLP may request that the loan availability be increased up to an aggregate of $1.5 billion, subject to receiving increased commitments from the lenders. The TLLP Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of TLLP’s subsidiaries, with the exception of Rendezvous Gas Services L.L.C., and secured by substantially all of TLLP’s assets. Borrowings are available under the TLLP Revolving Credit Facility up to the total loan availability of the facility. There was $299 million in borrowings outstanding under the TLLP Revolving Credit Facility, which incurred interest at a weighted average interest rate of 2.75% at June 30, 2015. TLLP had unused credit availability of approximately 67% of the borrowing capacity at June 30, 2015.

Tesoro Debt

Term Loan Facility. We entered into the Term Loan Facility in January 2013, which allowed us to borrow up to an aggregate of $500 million, which we used to fund a portion of the acquisition of BP’s integrated Southern California refining, marketing and logistics business (the “Los Angeles Acquisition”). The Term Loan Facility matures May 30, 2016. The obligations under the Term Loan Facility are secured by all equity interests of Tesoro Refining & Marketing Company LLC and Tesoro Alaska Company LLC, the Tesoro and USA Gasoline trademarks and those trademarks containing the name “ARCO” acquired in the Los Angeles Acquisition, and junior liens on certain assets. The Term Loan Facility may be repaid at any time but amounts may not be re-borrowed. There were no payments on the borrowings under the Term Loan Facility for the three months ended June 30, 2015. The borrowings under our Term Loan Facility incurred interest at a rate of 2.44% as of June 30, 2015 based on the following expense and fee schedule:

Credit Facility	30 day Eurodollar (LIBOR) Rate	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Term Loan Facility ($398 million) (a)	0.19%	2.25%	3.25%	1.25%	—%

____________________

(a) We can elect the interest rate to apply to the facility between a base rate plus the base rate margin, or a Eurodollar rate, for the applicable term, plus the Eurodollar margin at the time of the borrowing.

The Term Loan Facility contains affirmative covenants, representations and warranties and events of default substantially similar to those set forth in the Revolving Credit Facility and contains negative covenants substantially similar to those set forth in most of our current indentures.

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Benefit Plans (Notes)

6 Months Ended

Jun. 30, 2015

Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]

BENEFIT PLANS

BENEFIT PLANS

Tesoro sponsors four defined benefit pension plans, including one funded qualified employee retirement plan and three unfunded nonqualified executive plans. Although our funded employee retirement plan fully meets all funding requirements under applicable laws and regulations, we voluntarily contributed $30 million during the six months ended June 30, 2015 to improve the funded status of the plan. Tesoro also provides other postretirement health care benefits to retirees who met certain service requirements and were participating in our group health insurance program at retirement.

The components of pension and other postretirement benefit expense (income) for the three and six months ended June 30, 2015 and 2014 were (in millions):

	Pension Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Service cost	$	11		$	13		$	23		$	26
Interest cost	7			8			15			17
Expected return on plan assets	(6		)	(7		)	(13		)	(15		)
Amortization of prior service cost	—			1			—			1
Recognized net actuarial loss	6			3			12			7
Net Periodic Benefit Expense	$	18		$	18		$	37		$	36
	Other Postretirement Benefits
	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
Service cost	$	1		$	1		$	2		$	2
Interest cost	—			—			1			1
Amortization of prior service credit	(8		)	(8		)	(17		)	(17		)
Recognized net actuarial loss	1			2			2			3
Net Periodic Benefit Income	$	(6	)	$	(5	)	$	(12	)	$	(11	)

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Stockholders' Equity (Notes)

6 Months Ended

Jun. 30, 2015

Stockholders' Equity Attributable to Parent [Abstract]

STOCKHOLDERS' EQUITY

STOCKHOLDERS’ EQUITY

Changes to equity during the six months ended June 30, 2015 are presented below (in millions):

	Tesoro Corporation Stockholders’ Equity			Noncontrolling  Interest			Total Equity
Balance at December 31, 2014 (a)	$	4,454		$	2,522		$	6,976
Net earnings	727			81			808
Purchases of common stock	(269		)	—			(269		)
Dividend payments	(107		)	—			(107		)
Net effect of amounts related to equity-based compensation (b)	22			2			24
Net proceeds from issuance of Tesoro Logistics LP common units	—			45			45
Distributions to noncontrolling interest	—			(90		)	(90		)
Transfers to (from) Tesoro paid-in capital related to:
TLLP’s sale of common units	14			(14		)	—
Other	(4		)	—			(4		)
Balance at June 30, 2015 (a)	$	4,837		$	2,546		$	7,383

________________

(a) We have 5.0 million shares of preferred stock authorized with no par value per share. No shares of preferred stock were outstanding as of June 30, 2015 and December 31, 2014.

(b) We issued approximately 0.3 million shares during each of the six months ended June 30, 2015 and 2014 for proceeds of $10 million and $6 million, respectively, primarily for stock option exercises under our equity-based compensation plans. See Note 12 for more information on stock-based compensation.

Share Repurchases

We are authorized by our Board of Directors (the “Board”) to purchase shares of our common stock in open market transactions at our discretion. The Board’s authorization has no time limit and may be suspended or discontinued at any time. Purchases of our common stock can also be made to offset the dilutive effect of stock-based compensation awards and to meet our obligations under employee benefit and compensation plans, including the exercise of stock options and vesting of restricted stock and to fulfill other stock compensation requirements. We purchased approximately 3.1 million shares and 3.7 million shares of our common stock for approximately $269 million and $200 million during the six months ended June 30, 2015 and 2014, respectively.

Cash Dividends

We paid cash dividends totaling $53 million and $107 million for the three and six months ended June 30, 2015, respectively, based on a $0.425 per share quarterly cash dividend on common stock. We paid cash dividends totaling $32 million and $65 million for the three and six months ended June 30, 2014, respectively, based on a $0.250 per share quarterly cash dividend on common stock. On August 3, 2015, our Board declared a cash dividend of $0.50 per share payable on September 14, 2015 to shareholders of record on August 28, 2015.

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Operating Segments, Results (Details) - USD ($) $ in Millions					3 Months Ended		6 Months Ended
		Jan. 01, 2015	Jan. 01, 2014	Apr. 01, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information
Total Revenues					$ 8,232	$ 11,104	$ 14,695	$ 21,037
OPERATING INCOME					1,009	410	1,349	648
Reconciliation of Operating Income from Segments to Consolidated
Total Segment Operating Income					1,074	494	1,498	758
Corporate and unallocated costs	[1]				(65)	(84)	(149)	(110)
Segment Reporting Information, Income before Income Taxes
Interest and financing costs, net	[2]				(54)	(41)	(109)	(118)
Other income, net					3	3	2	2
Earnings Before Income Taxes					958	372	1,242	532
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Depreciation and Amortization Expense					182	135	361	265
Total Capital Expenditures					237	167	497	270
Total Assets					16,691		16,691		$ 16,491
Segment Reporting Table Footnotes
Federal and state motor fuel taxes on sales by the marketing segment					146	152	286	293
Debt redemption charges							0	(31)
Intersegment pricing methodology effective date				Apr. 01, 2013
Intersegment pricing methodology, new inclusion effective date	[3]	Jan. 01, 2015
Continuing Operations
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Assets					16,691		16,691		16,491
Refining
Segment Reporting Information
OPERATING INCOME	[3]				753	358	936	538
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Depreciation and Amortization Expense					122	104	241	205
Total Capital Expenditures					148	94	332	162
Refining | Refined products
Segment Reporting Information
Total Revenues					7,499	10,499	13,327	19,990
Refining | Crude oil resales and other
Segment Reporting Information
Total Revenues					309	354	608	626
Refining | Continuing Operations
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Assets					9,531		9,531		9,467
TLLP
Segment Reporting Information
OPERATING INCOME	[4]				109	48	217	108
Reconciliation of Operating Income from Segments to Consolidated
Corporate and unallocated costs					(15)	(4)	(27)	(8)
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Depreciation and Amortization Expense					44	17	88	33
Total Capital Expenditures					77	48	143	74
TLLP | Gathering
Segment Reporting Information
Total Revenues					89	27	166	52
TLLP | Processing
Segment Reporting Information
Total Revenues					67	0	134	0
TLLP | Terminalling and transportation
Segment Reporting Information
Total Revenues					119	106	238	208
TLLP | Continuing Operations
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Assets					4,809		4,809		4,765
Marketing
Segment Reporting Information
OPERATING INCOME	[3]				212	88	345	112
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Depreciation and Amortization Expense					11	10	23	20
Total Capital Expenditures					8	13	12	18
Marketing | Fuel
Segment Reporting Information
Total Revenues	[5]				5,051	6,649	8,999	12,313
Marketing | Other Non-fuel
Segment Reporting Information
Total Revenues	[6]				16	69	32	130
Marketing | Continuing Operations
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Assets					1,226		1,226		1,048
Intersegment sales
Segment Reporting Information
Total Revenues					(4,918)	(6,600)	(8,809)	(12,282)
Corporate
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Depreciation and Amortization Expense					5	4	9	7
Total Capital Expenditures					4	12	10	16
Segment Reporting Table Footnotes
Stock-based compensation expense (benefit)					7	$ 26	35	$ 8
Corporate | Continuing Operations
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments
Total Assets					$ 1,125		1,125		$ 1,211
5.5% Senior Notes due 2019
Segment Reporting Table Footnotes
Debt redemption charges							$ 31
Debt instrument interest rate						5.50%		5.50%
Debt instrument, maturity date							Oct. 15, 2019
Pro Forma
Segment Reporting Table Footnotes
Intersegment pricing methodology, new inclusion effective date	[3]		Jan. 01, 2014
Pro Forma | Refining
Segment Reporting Information
OPERATING INCOME	[3]					$ 31		$ 59

[1] Includes stock-based compensation expense of $7 million and $26 million for the three months ended June 30, 2015 and 2014, respectively, and $35 million and $8 million for the six months ended June 30, 2015 and 2014, respectively. The significant impact to stock-based compensation expense during the three and six months ended June 30, 2015 compared to the prior period is primarily a result of changes in Tesoro’s stock price.

[2] Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 5.50% Senior Notes due 2019 during the six months ended June 30, 2014.

[3] Our refining segment uses RINs to satisfy its obligations under the Renewable Fuels Standard, in addition to physically blending required biofuels. Effective April 1, 2013, we changed our intersegment pricing methodology and no longer reduced the amount marketing pays for the biofuels by the market value of the RINs due to significant volatility in the value of RINs. At the end of 2014, given the price of RINs has become more transparent in the price of biofuels, we determined our intersegment pricing methodology should include the market value of RINs as a reduction to the price our marketing segment pays to our refining segment. We made this change effective January 1, 2015. We have not adjusted financial information presented for our refining and marketing segments for the three or six month periods ended June 30, 2014. Had we made this change effective January 1, 2014, operating income in our refining segment would have been reduced by $31 million and $59 million with a corresponding increase to operating income in our marketing segment for the three and six months ended June 30, 2014, respectively.

[4] We present TLLP’s segment operating income net of general and administrative expenses totaling $15 million and $4 million representing TLLP’s corporate costs for the three months ended June 30, 2015 and 2014, respectively, and $27 million and $8 million for the six months ended June 30, 2015 and 2014, respectively, that are not allocated by TLLP to its operating segments.

[5] Federal and state motor fuel taxes on sales by our marketing segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $146 million and $152 million for the three months ended June 30, 2015 and 2014, respectively, and $286 million and $293 million for the six months ended June 30, 2015 and 2014, respectively.

[6] Includes merchandise revenue for the three and six months ended June 30, 2014.

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Condensed Consolidating Financial Information, Statement of Operations (Details) - USD ($) $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2015		Jun. 30, 2014		Jun. 30, 2015		Jun. 30, 2014
Condensed Financial Statements, captions
Revenues		$ 8,232		$ 11,104		$ 14,695		$ 21,037
Costs and Expenses:
Cost of sales		6,398		9,867		11,738		18,815
Operating, selling, general and administrative expenses		639		690		1,239		1,312
Depreciation and amortization expense		182		135		361		265
(Gain) loss on asset disposals and impairments		4		2		8		(3)
Operating Income		1,009		410		1,349		648
Equity in earnings of subsidiaries		0		0		0		0
Interest and financing costs, net	[1]	(54)		(41)		(109)		(118)
Other income (expense), net		3		3		2		2
Earnings Before Income Taxes		958		372		1,242		532
Income tax expense (benefit)		334		132		430		188
Net Earnings from Continuing Operations		624		240		812		344
Loss from discontinued operations, net of tax		(4)		0		(4)		(1)
Net Earnings		620		240		808		343
Less: Net earnings from continuing operations attributable to noncontrolling interest		38		16		81		41
Net Earnings Attributable to Tesoro Corporation		582		224		727		302
Comprehensive Income
Total comprehensive income		620		240		808		343
Less: Noncontrolling interest in comprehensive income		38		16		81		41
Comprehensive Income Attributable to Tesoro Corporation		582		224		727		302
Parent
Condensed Financial Statements, captions
Revenues		0		0		0		0
Costs and Expenses:
Cost of sales		0		0		0		0
Operating, selling, general and administrative expenses		2		3		6		4
Depreciation and amortization expense		0		0		0		0
(Gain) loss on asset disposals and impairments		0		0		0		0
Operating Income		(2)		(3)		(6)		(4)
Equity in earnings of subsidiaries		590		231		747		317
Interest and financing costs, net		(10)		(9)		(21)		(17)
Other income (expense), net		1		2		1		2
Earnings Before Income Taxes		579		221		721		298
Income tax expense (benefit)		(3)	[2]	(3)	[3]	(6)	[4]	(4)	[5]
Net Earnings from Continuing Operations		582				727		302
Loss from discontinued operations, net of tax		0				0		0
Net Earnings		582		224		727		302
Less: Net earnings from continuing operations attributable to noncontrolling interest		0		0		0		0
Net Earnings Attributable to Tesoro Corporation		582		224		727		302
Comprehensive Income
Total comprehensive income		582		224		727		302
Less: Noncontrolling interest in comprehensive income		0		0		0		0
Comprehensive Income Attributable to Tesoro Corporation		582		224		727		302
Guarantor Subsidiaries
Condensed Financial Statements, captions
Revenues		9,000		12,729		15,999		24,293
Costs and Expenses:
Cost of sales		7,336		11,572		13,329		22,236
Operating, selling, general and administrative expenses		617		677		1,226		1,289
Depreciation and amortization expense		136		117		270		230
(Gain) loss on asset disposals and impairments		4		3		8		2
Operating Income		907		360		1,166		536
Equity in earnings of subsidiaries		48		13		64		27
Interest and financing costs, net		(17)		(24)		(35)		(83)
Other income (expense), net		1		1		(3)		0
Earnings Before Income Taxes		939		350		1,192		480
Income tax expense (benefit)		325	[2]	127	[3]	420	[4]	178	[5]
Net Earnings from Continuing Operations		614				772		302
Loss from discontinued operations, net of tax		(4)				(4)		(1)
Net Earnings		610		223		768		301
Less: Net earnings from continuing operations attributable to noncontrolling interest		0		0		0		0
Net Earnings Attributable to Tesoro Corporation		610		223		768		301
Comprehensive Income
Total comprehensive income		610		223		768		301
Less: Noncontrolling interest in comprehensive income		0		0		0		0
Comprehensive Income Attributable to Tesoro Corporation		610		223		768		301
Non- Guarantors
Condensed Financial Statements, captions
Revenues		750		1,829		1,664		3,439
Costs and Expenses:
Cost of sales		465		1,688		1,126		3,164
Operating, selling, general and administrative expenses		135		71		258		129
Depreciation and amortization expense		46		18		91		35
(Gain) loss on asset disposals and impairments		0		(1)		0		(5)
Operating Income		104		53		189		116
Equity in earnings of subsidiaries		0		0		0		0
Interest and financing costs, net		(27)		(17)		(53)		(35)
Other income (expense), net		1		9		4		17
Earnings Before Income Taxes		78		45		140		98
Income tax expense (benefit)		12	[2]	8	[3]	16	[4]	14	[5]
Net Earnings from Continuing Operations		66				124		84
Loss from discontinued operations, net of tax		0				0		0
Net Earnings		66		37		124		84
Less: Net earnings from continuing operations attributable to noncontrolling interest		38		16		81		41
Net Earnings Attributable to Tesoro Corporation		28		21		43		43
Comprehensive Income
Total comprehensive income		66		37		124		84
Less: Noncontrolling interest in comprehensive income		38		16		81		41
Comprehensive Income Attributable to Tesoro Corporation		28		21		43		43
Eliminations
Condensed Financial Statements, captions
Revenues		(1,518)		(3,454)		(2,968)		(6,695)
Costs and Expenses:
Cost of sales		(1,403)		(3,393)		(2,717)		(6,585)
Operating, selling, general and administrative expenses		(115)		(61)		(251)		(110)
Depreciation and amortization expense		0		0		0		0
(Gain) loss on asset disposals and impairments		0		0		0		0
Operating Income		0		0		0		0
Equity in earnings of subsidiaries		(638)		(244)		(811)		(344)
Interest and financing costs, net		0		9		0		17
Other income (expense), net		0		(9)		0		(17)
Earnings Before Income Taxes		(638)		(244)		(811)		(344)
Income tax expense (benefit)		0	[2]	0	[3]	0	[4]	0	[5]
Net Earnings from Continuing Operations		(638)				(811)		(344)
Loss from discontinued operations, net of tax		0				0		0
Net Earnings		(638)		(244)		(811)		(344)
Less: Net earnings from continuing operations attributable to noncontrolling interest		0		0		0		0
Net Earnings Attributable to Tesoro Corporation		(638)		(244)		(811)		(344)
Comprehensive Income
Total comprehensive income		(638)		(244)		(811)		(344)
Less: Noncontrolling interest in comprehensive income		0		0		0		0
Comprehensive Income Attributable to Tesoro Corporation		$ (638)		$ (244)		$ (811)		$ (344)

[1] Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 5.50% Senior Notes due 2019 during the six months ended June 30, 2014.

[2] The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

[3] The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

[4] The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

[5] The income tax expense (benefit) reflected in each column does not include any tax effect of the equity in earnings from corporate subsidiaries, but does include the tax effect of the corporate partners’ share of partnership income.

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Operating Segments (Details) - Jun. 30, 2015	states refineries
Segment Reporting Information
Foreign operations	Since we do not have significant operations in foreign countries, revenue generated in and long-lived assets located in foreign countries are not material to our operations.
Change in basis of segmentation, description	We changed our operating segment presentation in the second quarter of 2015 to reflect the changing nature of our underlying assets, operations and how our chief operating decision maker (“CODM”) manages our business. In previous periods, a portion of our marketing business related to sales in unbranded or wholesale channels was presented within our refining operating segment.
Refining
Segment Reporting Information
Number of refineries (refineries)	6
Segment reporting description	Our refining segment owns and operates six petroleum refineries located in California, Washington, Alaska, North Dakota and Utah that manufacture gasoline and gasoline blendstocks, jet fuel, diesel fuel, residual fuel oil and other refined products. We sell these refined products, together with refined products purchased from third parties, to our marketing segment through terminal facilities and other locations and opportunistically export refined products to foreign markets
Marketing
Segment Reporting Information
Number of states with retail sites (states) | states	16
Segment reporting description	Our marketing segment sells gasoline and diesel fuel through branded MSOs and jobber/dealers in 16 states as well as unbranded or wholesale channels through terminal facilities and other locations.
TLLP
Segment Reporting Information
Segment reporting description	TLLP’s assets and operations include certain crude oil gathering assets, natural gas gathering and processing assets and crude oil and refined products terminalling and transportation assets acquired from Tesoro and other third parties. Revenues from the TLLP segment are generated by charging fees for gathering crude oil and natural gas, for processing natural gas, and for terminalling, transporting and storing crude oil, and refined products.

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Operating Segments (Tables)

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Schedule of segment reporting information, by segment

Segment information related to continuing operations is as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(In millions)
Revenues
Refining:
Refined products	$	7,499		$	10,499		$	13,327		19,990
Crude oil resales and other	309			354			608			626
TLLP:
Gathering	89			27			166			52
Processing	67			—			134			—
Terminalling and transportation	119			106			238			208
Marketing:
Fuel (a)	5,051			6,649			8,999			12,313
Other non-fuel (b)	16			69			32			130
Intersegment sales	(4,918		)	(6,600		)	(8,809		)	(12,282		)
Total Revenues	$	8,232		$	11,104		$	14,695		$	21,037
Segment Operating Income
Refining (c)	$	753		$	358		$	936		$	538
TLLP (d)	109			48			217			108
Marketing (c)	212			88			345			112
Total Segment Operating Income	1,074			494			1,498			758
Corporate and unallocated costs (e)	(65		)	(84		)	(149		)	(110		)
Operating Income	1,009			410			1,349			648
Interest and financing costs, net (f)	(54		)	(41		)	(109		)	(118		)
Other income, net	3			3			2			2
Earnings Before Income Taxes	$	958		$	372		$	1,242		$	532
Depreciation and Amortization Expense
Refining	$	122		$	104		$	241		$	205
TLLP	44			17			88			33
Marketing	11			10			23			20
Corporate	5			4			9			7
Total Depreciation and Amortization Expense	$	182		$	135		$	361		$	265
Capital Expenditures
Refining	$	148		$	94		$	332		$	162
TLLP	77			48			143			74
Marketing	8			13			12			18
Corporate	4			12			10			16
Total Capital Expenditures	$	237		$	167		$	497		$	270

________________

(a) Federal and state motor fuel taxes on sales by our marketing segment are included in both revenues and cost of sales in our condensed statements of consolidated operations. These taxes totaled $146 million and $152 million for the three months ended June 30, 2015 and 2014, respectively, and $286 million and $293 million for the six months ended June 30, 2015 and 2014, respectively.

(b) Includes merchandise revenue for the three and six months ended June 30, 2014.

(c) Our refining segment uses RINs to satisfy its obligations under the Renewable Fuels Standard, in addition to physically blending required biofuels. Effective April 1, 2013, we changed our intersegment pricing methodology and no longer reduced the amount marketing pays for the biofuels by the market value of the RINs due to significant volatility in the value of RINs. At the end of 2014, given the price of RINs has become more transparent in the price of biofuels, we determined our intersegment pricing methodology should include the market value of RINs as a reduction to the price our marketing segment pays to our refining segment. We made this change effective January 1, 2015. We have not adjusted financial information presented for our refining and marketing segments for the three or six month periods ended June 30, 2014. Had we made this change effective January 1, 2014, operating income in our refining segment would have been reduced by $31 million and $59 million with a corresponding increase to operating income in our marketing segment for the three and six months ended June 30, 2014, respectively.

(d) We present TLLP’s segment operating income net of general and administrative expenses totaling $15 million and $4 million representing TLLP’s corporate costs for the three months ended June 30, 2015 and 2014, respectively, and $27 million and $8 million for the six months ended June 30, 2015 and 2014, respectively, that are not allocated by TLLP to its operating segments.

(e) Includes stock-based compensation expense of $7 million and $26 million for the three months ended June 30, 2015 and 2014, respectively, and $35 million and $8 million for the six months ended June 30, 2015 and 2014, respectively. The significant impact to stock-based compensation expense during the three and six months ended June 30, 2015 compared to the prior period is primarily a result of changes in Tesoro’s stock price.

(f) Includes charges totaling $31 million for premiums and unamortized debt issuance costs associated with the redemption of the 5.50% Senior Notes due 2019 during the six months ended June 30, 2014.

The following table details our identifiable assets related to continuing operations:

	June 30, 2015		December 31, 2014
Identifiable Assets Related to Continuing Operations:	(In millions)
Refining	$	9,531	$	9,467
TLLP	4,809		4,765
Marketing	1,226		1,048
Corporate	1,125		1,211
Total Assets	$	16,691	$	16,491

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Fair Value Measurements (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2015	Dec. 31, 2014
Fair Value Measurements
Gross derivative assets		$ 392	$ 1,204
Derivative asset amount offset against collateral and netting arrangements	[1],[2]	(327)	(1,136)
Net derivative assets		65	68
Gross derivative liabilities		405	1,027
Derivative liability amount offset against collateral and netting arrangements	[1],[2]	(386)	(1,024)
Net derivative liabilities		49	23
Cash collateral posted		59
Counterparty cash collateral			(112)
Debt carrying value		4,300	4,300
Debt fair value		4,400	4,300
Commodity Futures Contracts
Fair Value Measurements
Derivative asset amount offset against collateral and netting arrangements	[2]	(327)	(1,136)
Net derivative assets		61	65
Derivative liability amount offset against collateral and netting arrangements	[2]	(386)	(1,024)
Net derivative liabilities		17	1
Commodity OTC Swap Contracts
Fair Value Measurements
Derivative asset amount offset against collateral and netting arrangements	[2]	0
Net derivative assets		3
Derivative liability amount offset against collateral and netting arrangements	[2]	0	0
Net derivative liabilities		1	1
Commodity Forward Contracts
Fair Value Measurements
Derivative asset amount offset against collateral and netting arrangements	[2]	0	0
Net derivative assets		1	3
Derivative liability amount offset against collateral and netting arrangements	[2]	0	0
Net derivative liabilities		1	1
Environmental Credit Obligations
Fair Value Measurements
Derivative liability amount offset against collateral and netting arrangements	[2]	0	0
Net derivative liabilities		30	20
Level 1
Fair Value Measurements
Gross derivative assets		375	1,165
Gross derivative liabilities		391	1,011
Level 1 | Commodity Futures Contracts
Fair Value Measurements
Gross derivative assets		375	1,165
Gross derivative liabilities		391	1,011
Level 1 | Commodity OTC Swap Contracts
Fair Value Measurements
Gross derivative assets		0
Gross derivative liabilities		0	0
Level 1 | Commodity Forward Contracts
Fair Value Measurements
Gross derivative assets		0	0
Gross derivative liabilities		0	0
Level 1 | Environmental Credit Obligations
Fair Value Measurements
Gross derivative liabilities		0	0
Level 2
Fair Value Measurements
Gross derivative assets		17	39
Gross derivative liabilities		44	36
Level 2 | Commodity Futures Contracts
Fair Value Measurements
Gross derivative assets		13	36
Gross derivative liabilities		12	14
Level 2 | Commodity OTC Swap Contracts
Fair Value Measurements
Gross derivative assets		3
Gross derivative liabilities		1	1
Level 2 | Commodity Forward Contracts
Fair Value Measurements
Gross derivative assets		1	3
Gross derivative liabilities		1	1
Level 2 | Environmental Credit Obligations
Fair Value Measurements
Gross derivative liabilities		30	20
Level 3
Fair Value Measurements
Gross derivative assets		0	0
Gross derivative liabilities		0	0
Level 3 | Commodity Futures Contracts
Fair Value Measurements
Gross derivative assets		0	0
Gross derivative liabilities		0	0
Level 3 | Commodity OTC Swap Contracts
Fair Value Measurements
Gross derivative assets		0
Gross derivative liabilities		0	0
Level 3 | Commodity Forward Contracts
Fair Value Measurements
Gross derivative assets		0	0
Gross derivative liabilities		0	0
Level 3 | Environmental Credit Obligations
Fair Value Measurements
Gross derivative liabilities		$ 0	$ 0
Maximum
Fair Value Measurements
Percent of trade receivables with balances outstanding greater than 90 days		1.00%
Percent of trade payables with balances outstanding greater than 90 days		1.00%
Minimum
Fair Value Measurements
Days outstanding on accounts payable and receivable		90 days

[1] As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions. Cash collateral amounts are netted with mark-to-market derivative assets.

[2] Certain of our derivative contracts, under master netting arrangements, include both asset and liability positions. We offset both the fair value amounts and any related cash collateral amounts recognized for multiple derivative instruments executed with the same counterparty when there is a legally enforceable right and an intention to settle net or simultaneously. As of June 30, 2015, we had provided cash collateral amounts of $59 million related to our unrealized derivative positions. At December 31, 2014, our counterparties had provided cash collateral of $112 million related to our unrealized derivative positions.

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Property, Plant and Equipment Property, Plant and Equipment (Policies)

6 Months Ended

Jun. 30, 2015

Property, Plant and Equipment [Abstract]

Interest capitalization policy

We capitalize interest as part of the cost of major projects during the construction period.

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Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Schedule of inventory, current

Components of inventories were as follows (in millions):

	June 30, 2015		December 31, 2014
Domestic crude oil and refined products	$	2,031	$	1,930
Foreign subsidiary crude oil	224		351
Other inventories	189		158
Total Inventories	$	2,444	$	2,439

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Derivative Instruments, Derivative Gains and Losses (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	$ (76)	$ (74)	$ (33)	$ (76)
Revenues
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	(6)	0	(2)	1
Cost of sales
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	(70)	(76)	(29)	(77)
Other income (expense), net
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	0	2	(2)	0
Commodity Futures Contracts
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	(86)	(77)	(43)	(77)
Commodity OTC Swap Contracts
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	(2)	(2)	(2)	(3)
Commodity Forward Contracts
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	12	3	14	4
Foreign Currency Forward Contracts
Derivative Instruments, Gain (Loss)
Total Gain (Loss) on Mark-to-Market Derivatives	$ 0	$ 2	$ (2)	$ 0

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Tesoro Logistics LP TLLP’s Preliminary Acquisition Date Purchase Price Allocation Narrative (Details) - Jun. 30, 2015 - Rockies Natural Gas Business - USD ($) $ in Millions	Total
Variable Interest Entity
Purchase price	$ 2,516
Purchase price adjustment	$ 6

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Condensed Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash Flows From (Used In) Operating Activities
Net earnings	$ 808	$ 343
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation and amortization expense	361	265
Debt redemption charges	0	31
Stock-based compensation expense	35	8
Deferred income taxes	46	24
Deferred charges	(167)	(79)
Other non-cash operating activities	45	(13)
Changes in current assets and current liabilities	(221)	(203)
Net cash from operating activities	907	376
Cash Flows From (Used In) Investing Activities
Capital expenditures	(540)	(260)
Acquisitions	(6)	(17)
Other investing activities	(2)	10
Net cash used in investing activities	(548)	(267)
Cash Flows From (Used In) Financing Activities
Borrowings under revolving credit agreements	262	228
Repayments on revolving credit agreements	(223)	0
Proceeds from debt offering	0	300
Repayments of debt	(3)	(302)
Dividend payments	(107)	(65)
Net proceeds from issuance of Tesoro Logistics LP common units	45	0
Distributions to noncontrolling interest	(90)	(42)
Purchases of common stock	(269)	(200)
Other financing activities	4	(27)
Net cash used in financing activities	(381)	(108)
Increase (Decrease) in Cash and Cash Equivalents	(22)	1
Cash and Cash Equivalents, Beginning of Period	1,000	1,238
Cash and Cash Equivalents, End of Period	$ 978	$ 1,239

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Property, Plant and Equipment (Notes)

6 Months Ended

Jun. 30, 2015

Property, Plant and Equipment [Abstract]

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment, at cost, is as follows (in millions):

	June 30, 2015			December 31, 2014
Refining	$	7,302		$	6,994
TLLP	3,694			3,551
Marketing	841			834
Corporate	256			254
Property, plant and equipment, at cost	12,093			11,633
Accumulated depreciation	(2,799		)	(2,588		)
Net Property, Plant and Equipment	$	9,294		$	9,045

We capitalize interest as part of the cost of major projects during the construction period. Capitalized interest totaled $9 million and $5 million for the three months ended June 30, 2015 and 2014, respectively, and $18 million and $10 million for the six months ended June 30, 2015 and 2014, respectively, and is recorded as a reduction to net interest and financing costs in our condensed statements of consolidated operations.

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Commitments and Contingencies, Tax Matters (Details) - Jun. 30, 2015 - USD ($) $ in Millions	Total	Total
Commitments and Contingencies Disclosure [Abstract]
Unrecognized tax benefits, increase Resulting from for tax positions taken on amended returns	$ 150
Possible decrease in unrecognized tax benefits in the next twelve months	$ 8	$ 8
Significant Change in Unrecognized Tax Benefits is Reasonably Possible		It is reasonably possible that unrecognized tax benefits may decrease by as much as $8 million in the next twelve months, related primarily to state apportionment matters. However, since the tax was fully paid in prior years, the unrecognized tax benefit would be eliminated without impacting expense.

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Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2015

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, plant and equipment, at cost, is as follows (in millions):

	June 30, 2015			December 31, 2014
Refining	$	7,302		$	6,994
TLLP	3,694			3,551
Marketing	841			834
Corporate	256			254
Property, plant and equipment, at cost	12,093			11,633
Accumulated depreciation	(2,799		)	(2,588		)
Net Property, Plant and Equipment	$	9,294		$	9,045

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Basis of Presentation New Accounting Standards and Disclosures (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
New Accounting Pronouncement, Early Adoption
Unamortized debt issuance costs	$ (84)
New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncement, Early Adoption
Unamortized debt issuance costs		$ (93)

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation and significant accounting policies

We prepare our condensed consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the reported amounts and disclosures of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods presented.

Use of estimates policy

We review our estimates on an ongoing basis. Changes in facts and circumstances may result in revised estimates and actual results could differ from those estimates. The results of operations for any interim period are not necessarily indicative of results for the full year. Certain prior year balances have been aggregated or disaggregated in order to conform to the current year presentation.

Consolidation of variable interest entity policy

Our condensed consolidated financial statements include TLLP, a variable interest entity. As the general partner of TLLP, we have the sole ability to direct the activities of TLLP that most significantly impact its economic performance. We are also considered to be the primary beneficiary for accounting purposes and are TLLP’s primary customer.

New Accounting Pronouncements, Policy

New Accounting Standards and Disclosures

Revenue Recognition. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2014-09, “Revenue from Contracts with Customers” (“ASU 2014-09”), which provides accounting guidance for all revenue arising from contracts to provide goods or services to customers. ASU 2014-09 is effective for interim and annual periods beginning after December 15, 2017 given the FASB’s recent deferral of ASU 2014-09’s effective date. Entities may choose to early adopt ASU 2014-09 as of the original effective date. The standard allows for either full retrospective adoption or modified retrospective adoption. At this time, we are evaluating the guidance to determine the method, timing and the impact of adopting ASU 2014-09 with regard to our financial statements and related disclosures.

Consolidation.  In February 2015, the FASB issued Accounting Standard Update 2015-02, “Amendments to the Consolidation Analysis” (“ASU 2015-02”). This standard modifies existing consolidation guidance for reporting organizations that are required to evaluate whether they should consolidate certain legal entities. ASU 2015-02 is effective for interim and annual periods beginning after December 15, 2015, and requires either a retrospective or a modified retrospective approach to adoption. Early adoption is permitted. At this time, we are evaluating the potential impact of this standard on our financial statements, as well as the available transition methods.

Debt Issuance Costs. In April 2015, the FASB issued Accounting Standard Update 2015-03, “Interest - Imputation of Interest” (“ASU 2015-03”), which will simplify the presentation of debt issuance costs. Under ASU 2015-03, debt issuance costs related to a recognized debt liability will be presented in the balance sheet as a direct deduction from the carrying amount of the related debt liability. As a result, our balance sheet will reflect a reclassification of unamortized debt issuance costs from other noncurrent assets to debt. ASU 2015-03 is effective for interim and annual periods beginning after December 15, 2015, and early adoption is permitted. We have adopted this standard effective as of March 31, 2015 and applied the changes retrospectively to prior periods presented. Adoption of this standard has resulted in the reclassification of $93 million from other noncurrent assets to debt on the balance sheet at December 31, 2014. Unamortized debt issuance costs of$84 millionare recorded as a reduction to debt on the balance sheet at June 30, 2015.