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 March 31, 2016

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 1‑35143

TESORO LOGISTICS LP

(Exact name of registrant as specified in its charter)

Delaware		27‑4151603
(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.  Yesþ 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).  YesþNo¨

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. (Check one):

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 ¨Noþ

There were 93,633,156 common units and 1,900,515 general partner units of the registrant outstanding at April 28, 2016.

TABLE OF CONTENTS

TESORO LOGISTICS LP

QUARTERLY REPORT ON FORM 10-Q

FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2016

PART I. FINANCIAL INFORMATION		Page
Item 1.	Financial Statements (Unaudited)
	Condensed Statements of Combined Consolidated Operations - Three Months Ended March 31, 2016 and 2015	3
	Condensed Consolidated Balance Sheets - March 31, 2016 and December 31, 2015	4
	Condensed Statements of Combined Consolidated Cash Flows - Three Months Ended March 31, 2016 and 2015	5
	Notes to Condensed Combined Consolidated Financial Statements	6
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	17
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	31
Item 4.	Controls and Procedures	#SectionPage#
PART II. OTHER INFORMATION
Item 1.	Legal Proceedings	33
Item 1A.	Risk Factors	33
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	34
Item 6.	Exhibits	34
SIGNATURES		35

2 | Tesoro Logistics LP 2016

FINANCIAL STATEMENTS

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

TESORO LOGISTICS LP

CONDENSED STATEMENTS OF COMBINED CONSOLIDATED OPERATIONS

(Unaudited)

	Three Months Ended March 31,
	2016			2015
	(In millions, except per unit amounts)
Revenues
Affiliate	$	169		$	148
Third-party	131			115
Total Revenues	300			263
Costs and Expenses
Operating and maintenance expenses	112			98
Imbalance settlement gains and reimbursements	(7		)	(8		)
General and administrative expenses	24			25
Depreciation and amortization expenses	44			44
Net loss on asset disposals and impairments	1			—
Total Costs and Expenses	174			159
Operating Income	126			104
Interest and financing costs, net	(44		)	(37		)
Equity in earnings of unconsolidated affiliates	4			3
Other income, net	6			—
Net Earnings	$	92		$	70
Loss attributable to Predecessor	$	—		$	4
Net earnings attributable to noncontrolling interest	—			(10		)
Net Earnings Attributable to Partners	92			64
General partner’s interest in net earnings, including incentive distribution rights	(32		)	(14		)
Limited Partners’ Interest in Net Earnings	$	60		$	50
Net Earnings per Limited Partner Unit:
Common - basic	$	0.64		$	0.63
Common - diluted	$	0.64		$	0.63
Weighted Average Limited Partner Units Outstanding:
Common units - basic	93.6			80.3
Common units - diluted	93.6			80.3
Cash Distributions Paid Per Unit	$	0.7800		$	0.6675

See accompanying notes to condensed combined consolidated financial statements.

Tesoro Logistics LP 2016 |3

FINANCIAL STATEMENTS

TESORO LOGISTICS LP

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	March 31, 2016			December 31, 2015
	(In millions, except unit amounts)
ASSETS
Current Assets
Cash and cash equivalents	$	4		$	16
Receivables, net
Trade	137			139
Affiliate	101			85
Prepayments and other	10			12
Total Current Assets	252			252
Net Property, Plant and Equipment	3,086			3,450
Acquired Intangibles, net	970			976
Goodwill	112			130
Investment in Unconsolidated Affiliates	346			58
Other Noncurrent Assets	27			26
Total Assets	$	4,793		$	4,892
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable
Trade	$	60		$	83
Affiliate	53			48
Accrued interest and financing costs	68			31
Other current liabilities	48			59
Total Current Liabilities	229			221
Other Noncurrent Liabilities	47			49
Debt, Net of Unamortized Issuance Costs	2,821			2,844
Total Liabilities	3,097			3,114
Commitments and Contingencies (Note 6)
Equity
Common unitholders; 93,633,156 units issued and outstanding (93,478,326 in 2015)	1,701			1,707
General partner; 1,900,515 units issued and outstanding (1,900,515 in 2015)	(5		)	(13		)
Noncontrolling interest	—			84
Total Equity	1,696			1,778
Total Liabilities and Equity	$	4,793		$	4,892

See accompanying notes to condensed combined consolidated financial statements.

4 | Tesoro Logistics LP 2016

FINANCIAL STATEMENTS

TESORO LOGISITICS LP

CONDENSED STATEMENTS OF COMBINED CONSOLIDATED CASH FLOWS

(Unaudited)

	Three Months Ended March 31,
	2016			2015
	(In millions)
Cash Flows From (Used In) Operating Activities:
Net earnings	$	92		$	70
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation and amortization expenses	44			44
Other non-cash operating activities	14			2
Changes in current assets and current liabilities	14			15
Changes in noncurrent assets and liabilities	(3		)	17
Net cash from operating activities	161			148
Cash Flows Used In Investing Activities:
Capital expenditures	(54		)	(84		)
Other investing	(4		)	—
Net cash used in investing activities	(58		)	(84		)
Cash Flows From (Used In) Financing Activities:
Proceeds from issuance of units, net of issuance costs	5			24
Quarterly distributions to unitholders	(73		)	(54		)
Quarterly distributions to general partner	(25		)	(16		)
Distributions to noncontrolling interest	—			(9		)
Borrowings under revolving credit agreements	297			99
Repayments under revolving credit agreement	(67		)	(124		)
Repayment of term loan facility	(250		)	—
Financing costs	(8		)	—
Sponsor contributions of equity to the Predecessor	—			6
Capital contributions by affiliate	6			7
Net cash used in financing activities	(115		)	(67		)
Decrease in Cash and Cash Equivalents	(12		)	(3		)
Cash and Cash Equivalents, Beginning of Period	16			19
Cash and Cash Equivalents, End of Period	$	4		$	16

See accompanying notes to condensed combined consolidated financial statements.

Tesoro Logistics LP 2016 |5

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

NOTE 1 - ORGANIZATION AND BASIS OF PRESENTATION

ORGANIZATION

Tesoro Logistics LP (“TLLP” or the “Partnership”) is a fee-based, growth-oriented Delaware limited partnership formed in December 2010 by Tesoro Corporation and its wholly-owned subsidiary, Tesoro Logistics GP, LLC (“TLGP”), our general partner, to own, operate, develop and acquire logistics assets. Unless the context otherwise requires, references in this report to “we,” “us,” “our,” or “ours” refer to Tesoro Logistics LP, one or more of its consolidated subsidiaries, or all of them taken as a whole. Unless the context otherwise requires, references in this report to “Tesoro” or our “Sponsor” refer collectively to Tesoro Corporation and any of its subsidiaries, other than TLLP, its subsidiaries and its general partner.

PRINCIPLES OF COMBINATION AND CONSOLIDATION AND BASIS OF PRESENTATION

Acquired assets from Tesoro, and those assets, liabilities and results of operations are collectively referred to as the “Predecessor”. The accompanying condensed combined consolidated financial statements and related notes present the results of operations and cash flows of our Predecessor at historical cost. The financial statements of our Predecessor have been prepared from the separate records maintained by Tesoro and may not necessarily be indicative of the conditions that would have existed or the results of operations if our Predecessor had been operated as an unaffiliated entity. Our Predecessor did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment.

The interim condensed combined consolidated financial statements and notes thereto have been prepared by management without audit according to the rules and regulations of the Securities and Exchange Commission (“SEC”) and 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.

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 interim condensed combined consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2015.

We prepare our condensed combined consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the amounts of assets and liabilities and revenues and expenses reported as of and during the periods presented. We review our estimates on an ongoing basis using currently available information. Changes in facts and circumstances may result in revised estimates, and actual results could differ from those estimates. The results of operations of the Partnership, or our Predecessor, for any interim period are not necessarily indicative of results for the full year.

CONDENSED CONSOLIDATING FINANCIAL INFORMATION. The parent company of the Partnership has no independent assets or operations. The Partnership’s operations are conducted by its wholly-owned guarantor subsidiaries, other than Tesoro Logistics Finance Corp., an indirect wholly-owned subsidiary of the Partnership whose sole purpose is to act as co-issuer of any debt securities. The guarantees are full and unconditional and joint and several, subject to certain automatic customary releases, including sale, disposition, or transfer of the capital stock or substantially all of the assets of a subsidiary guarantor, exercise of legal defeasance option or covenant defeasance option, and designation of a subsidiary guarantor as unrestricted in accordance with the applicable indenture. There are no significant restrictions on the ability of the Partnership or any guarantor to obtain funds from its subsidiaries by dividend or loan. None of the assets of the Partnership or a guarantor represent restricted net assets pursuant to Rule 4-08(e)(3) of Regulation S-X under the Securities Act.

As of March 31, 2016, due to the deconsolidation of Rendezvous Gas Services, L.L.C. (“RGS”), we are not required to provide condensed consolidating financial information pursuant to Rule 3-10 of Regulation S-X as we no longer have a consolidated non-guarantor subsidiary. For further discussion on the deconsolidation of RGS, see discussion below and in Note 4.

6 | Tesoro Logistics LP 2016

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

FAIR VALUE INFORMATION

We believe the carrying value of our cash and cash equivalents, receivables, accounts payable and certain accrued liabilities approximates fair value. Our fair value assessment incorporates a variety of considerations, including:

• the short term duration of the instruments (approximately one percent of our trade payables and receivables have been outstanding for greater than 90 days); and

• the expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk.

The computation of the percentage of the short-term duration of our trade receivables excludes amounts that are greater than 90 days related to legal disputes, primarily XTO Energy Inc.’s (“XTO”) legal dispute with QEP Field Services, LLP (“QEPFS”). See further discussion regarding the XTO litigation in Note 6.

The fair value of our senior notes is based on prices from recent trade activity and is categorized in level 2 of the fair value hierarchy. The borrowings under our amended revolving credit facility (the “Revolving Credit Facility”) and our secured dropdown credit facility (“Dropdown Credit Facility”), which include a variable interest rate, approximate fair value. The carrying value and fair value of our debt were both approximately $2.9 billion as of March 31, 2016. The carrying value and fair value of our debt were approximately $2.9 billion and $2.8 billion at December 31, 2015, respectively. These carrying and fair values of our debt do not include any unamortized issuance costs associated with our total debt.

NEW ACCOUNTING STANDARDS AND DISCLOSURES

REVENUE RECOGNITION. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 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. We are currently evaluating the impact of the standard on our financial statements and related disclosures. Based on our initial evaluation, we believe that the standard could impact the amount and timing of revenues we recognize as certain of our revenue arrangements require us to provide multiple services and may include variable consideration.

CONSOLIDATION. In February 2015, the FASB issued ASU 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. We adopted this guidance using the modified retrospective approach as of January 1, 2016 and performed the required reassessments outlined by the guidance. For further information on the results of our reassessments, refer to Note 4, Investments - Equity Method and Joint Ventures.

BUSINESS COMBINATIONS.In September 2015, the FASB issued ASU 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments” (“ASU 2015-16”). The standard requires an acquirer to recognize the cumulative impact of adjustments to provisional purchase price amounts that are identified during the measurement period in the reporting period, in which the adjustment amounts are determined. The standard also requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is effective for interim and annual periods beginning after December 15, 2015, and must be applied prospectively to adjustments that occur after the effective date. We adopted this guidance as of January 1, 2016, with no impact to our financial statements.

LEASES.In February 2016, the FASB issued ASU 2016-02, “Leases” (“ASU 2016-02”), which improves transparency and comparability among organizations by requiring lessees to recognize a lease liability and a corresponding lease asset for virtually all lease contracts. It also requires additional disclosures about leasing arrangements. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018, and requires 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.

SHARE-BASED COMPENSATION. In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for employee share-based payment transactions including accounting for income taxes, cash flow presentation of tax impacts, forfeitures, and liability versus equity

Tesoro Logistics LP 2016 |7

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

accounting due to statutory tax withholding requirements. ASU 2016-09 is effective for interim and annual periods beginning after December 15, 2016, with early adoption permitted. As of January 1, 2016, we early adopted ASU 2016-09 and with respect to the guidance on forfeitures, we have elected to continue to estimate forfeitures on the date of grant to account for the estimated number of awards for which the requisite service period will not be rendered. The adoption of ASU 2016-09 had no impact on our financial statements.

PRINCIPAL VS AGENT CONSIDERATIONS.In March 2016, the FASB issued ASU 2016-08, “Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which amends the principal versus agent guidance in ASU 2014-09. The amendments clarify how an entity should apply the control principle to certain types of arrangements, such as service transactions, by explaining what a principal controls before the specified good or service is transferred to the customer. The effective date and transition requirements for the amendments in ASU 2016-08 are the same as the effective date and transition requirements of ASU 2014-09. At this time, we are evaluating the potential impact of this standard on our financial statements.

NOTE 2 - RELATED-PARTY TRANSACTIONS

AFFILIATE AGREEMENTS

The Partnership has various long-term, fee-based commercial agreements with Tesoro, under which we provide pipeline transportation, trucking, terminal distribution and storage services to Tesoro, and Tesoro typically commits to fixed fees or to provide us with minimum monthly throughput volumes of crude oil and refined products. For the natural gas liquids (”NGLs”) that we handle under “keep-whole” agreements, the Partnership has a fee-based processing agreement with Tesoro which minimizes the impact of commodity price movements during the annual period subsequent to renegotiation of terms and pricing each year.

In addition, we have agreements for the provision of various general and administrative services by Tesoro. Under our partnership agreement, we are required to reimburse TLGP and its affiliates for all costs and expenses that they incur on our behalf for managing and controlling our business and operations. Except to the extent specified under our amended omnibus agreement (the “Amended Omnibus Agreement”) or our secondment agreement (the “Secondment Agreement”), TLGP determines the amount of these expenses. Under the terms of the Amended Omnibus Agreement, we are required to pay Tesoro an annual corporate services fee, currently $9 million, for the provision of various centralized corporate services, including executive management, legal, accounting, treasury, human resources, health, safety and environmental, information technology, certain insurance coverage, administration and other corporate services. Under the terms of our Secondment Agreement, we pay Tesoro a net annual service fee, currently $2 million, for services performed by field-level employees at the majority of our facilities. Additionally, we reimburse Tesoro for any direct costs actually incurred by Tesoro in providing other operational services with respect to certain of our other assets and operations. Tesoro may also provide us other services for which we will be charged fees as determined by TLGP.

SUMMARY OF AFFILIATE TRANSACTIONS

SUMMARY OF REVENUE AND EXPENSE TRANSACTIONS WITH TESORO (in millions)

	Three Months Ended March 31,
	2016		2015
Revenues (a)	$	169	$	148
Operating and maintenance expenses	37		29
Imbalance settlement gains and reimbursements from Tesoro (b)	7		8
General and administrative expenses	17		17

(a) Tesoro accounted for 56% of our total revenues for both the three months ended March 31, 2016 and 2015.

(b) Includes imbalance settlement gains of $1 million and $2 million for the three months ended March 31, 2016 and 2015, respectively. Also includes reimbursements from Tesoro pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement of $6 million for both the three months ended March 31, 2016 and 2015.

8 | Tesoro Logistics LP 2016

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

PREDECESSOR TRANSACTIONS. Related-party transactions of our Predecessor were settled through equity. Our Predecessor did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment.

DISTRIBUTIONS. In accordance with our partnership agreement, the unitholders of our common and general partner interests are entitled to receive quarterly distributions of available cash. During the three months ended March 31, 2016, we paid quarterly cash distributions of $50 million to Tesoro and TLGP, including incentive distribution rights (“IDRs”). On April 20, 2016, we declared a quarterly cash distribution of $0.81 per unit, which will be paid on May 13, 2016. The distribution will include payments of $59 million to Tesoro and TLGP, including IDRs.

NOTE 3 - PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT BY SEGMENT, AT COST (in millions)

	March 31, 2016			December 31, 2015
Gathering	$	1,348		$	1,700
Processing	563			565
Terminalling and Transportation	1,591			1,582
Gross Property, Plant and Equipment	3,502			3,847
Accumulated depreciation	(416		)	(397		)
Net Property, Plant and Equipment	$	3,086		$	3,450

NOTE 4 - INVESTMENTS - EQUITY METHOD AND JOINT VENTURES

For each of the following investments, we have the ability to exercise significant influence over each of these investments through our participation in the management committees, which make all significant decisions. However, since we have equal or proportionate influence over each committee as a joint interest partner and all significant decisions require consent of the other investor(s) without regard to our economic interest, we have determined that these entities should not be consolidated and apply the equity method of accounting with respect to our investments in each entity.

• RGS - We have a 78% interest in RGS, which owns and operates the infrastructure that transports gas from certain fields to several re-delivery points in southwestern Wyoming, including natural gas processing facilities that are owned by us or a third party. Prior to 2016, we consolidated RGS, however, upon our reassessment performed in conjunction with the adoption of ASU 2015-02 as of January 1, 2016, we determined RGS represents a variable interest entity to us for which we are not the primary beneficiary. Under the limited liability company agreement, we do not have voting rights commensurate with our economic interest due to veto rights available to our partner in RGS. Certain business decisions, including, but not limited to, decisions with respect to significant expenditures or contractual commitments, annual budgets, material financings, dispositions of assets or amending the members’ gas servicing agreements, require unanimous approval of the members. For amounts previously consolidated in our financial statements as of and for the year ended December 31, 2015, refer to the amounts shown in the Non-Guarantor column in the condensed consolidating financial information presented in Note 16 in our annual report on Form 10-K referenced herein.

• Three Rivers Gathering, L.L.C. (“TRG”) - We own a 50% interest in TRG which operates natural gas gathering assets within the southeastern Uinta Basin and is primarily supported by long-term, fee-based gas gathering agreements with minimum volume commitments.

• Uintah Basin Field Services, L.L.C. (“UBFS”) - We own a 38% interest in UBFS which owns and operates the natural gas gathering infrastructure located in the southeastern Uinta Basin and is supported by long-term, fee-based gas gathering agreements that contain firm throughput commitments, which generate fees whether or not the capacity is used, and is operated by us.

Tesoro Logistics LP 2016 |9

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

EQUITY METHOD INVESTMENTS (in millions)

	RGS			TRG			UBFS			Total
Balance at December 31, 2015	$	—		$	42		$	16		$	58
Effect of deconsolidation (a)	295			—			—			295
Equity in earnings	2			1			1			4
Distributions received	(9		)	(1		)	(1		)	(11		)
Balance at March 31, 2016	$	288		$	42		$	16		$	346

(a) The reassessment of our investments we performed resulted in the deconsolidation of RGS and the reporting of RGS as an equity method investment. We recognized an increase of $295 million to equity method investments as of January 1, 2016 as a result of the deconsolidation in addition to a cumulative effect reduction to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods. The carrying amount of our investment in RGS exceeded the underlying equity in net assets by $139 million at March 31, 2016.

NOTE 5 - DEBT

DEBT BALANCE, NET OF UNAMORTIZED ISSUANCE COSTS (in millions)

	March 31, 2016			December 31, 2015
Total debt	$	2,863		$	2,883
Unamortized issuance costs (a)	(42		)	(39		)
Debt, net of current maturities and unamortized issuance costs	$	2,821		$	2,844

(a) Includes unamortized premium associated with our 5.875% Senior Notes due 2020 of $4 million at both March 31, 2016 and December 31, 2015.

REVOLVING CREDIT FACILITY AND DROPDOWN CREDIT FACILITY

We amended our existing secured Revolving Credit Facility on January 29, 2016, decreasing the aggregate available facility limit from $900 million to $600 million and improving terms related to pricing and financial covenants. As a result of this amendment, an immaterial amount of unamortized debt issuance costs were expensed. In addition, we syndicated a $1.0 billion secured Dropdown Credit Facility on January 29, 2016. The primary use of proceeds under this facility will be to fund asset acquisitions. The terms, covenants and restrictions under this facility are substantially the same as with our amended secured Revolving Credit Facility. The total aggregate available facility limits for the secured Revolving Credit Facility and secured Dropdown Credit Facility totaled $1.6 billion at March 31, 2016. We are allowed to request the loan availability for both the secured Revolving Credit Facility and the secured Dropdown Credit Facility be increased up to an aggregate of $2.1 billion, subject to receiving increased commitments from the lenders.

As of March 31, 2016, our secured Revolving Credit Facility provided for total loan availability of $600 million. Borrowings are available under the secured Revolving Credit Facility up to the total loan availability of the facility. Our secured Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of our consolidated subsidiaries, and secured by substantially all of our assets. We had $285 million of borrowings outstanding under the secured Revolving Credit Facility, resulting in a total unused loan availability of $315 million or 53% of the borrowing capacity as of March 31, 2016. The weighted average interest rate for borrowings under our secured Revolving Credit Facility was 2.76% at March 31, 2016.

As of March 31, 2016, our secured Dropdown Credit Facility provided for total loan availability of $1.0 billion. We had $250 million of borrowings outstanding under the secured Dropdown Credit Facility, resulting in a total unused loan availability of $750 million or 75% of the borrowing capacity as of March 31, 2016. The weighted average interest rate for borrowings under our secured Dropdown Credit Facility was 2.70% at March 31, 2016.

10 | Tesoro Logistics LP 2016

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

The secured Revolving Credit Facility and the secured Dropdown Credit Facility ratably share collateral comprised primarily of our property, plant, and equipment and both facilities mature on January 29, 2021. In addition, upon an upgrade of our corporate family rating to investment grade, certain covenants and restrictions under each facility will automatically be eliminated or improved.

DEBT REPAYMENTS

On February 3, 2016, we paid the full amount of the Unsecured Term Loan Facility, including accrued interest, with proceeds drawn from the secured Dropdown Credit Facility. All commitments under the Unsecured Term Loan Facility were terminated effective with the repayment and an immaterial amount of unamortized debt issuance costs were expensed.

EXCHANGE OFFER

On February 26, 2016, the Partnership commenced an offer to exchange (the “Exchange”) its existing unregistered 5.50% Senior Notes due 2019 (“2019 Notes”) and 6.25% Senior Notes due 2022 (“2022 Notes”) (together, “Unregistered Notes”) for an equal principal amount of 5.50% Senior Notes due 2019 and 6.25% Senior Notes due 2022 (the “Exchange Notes”), respectively, that were registered under the Securities Act of 1933, as amended. On April 14, 2016, the Exchange was completed for all of the 2019 Notes and substantially all of the 2022 Notes. The terms of the Exchange Notes are identical in all material respects (including principal amount, interest rate, maturity and redemption rights) to the Unregistered Notes for which they were exchanged, except that the Exchange Notes generally are not subject to transfer restrictions. The Exchange fulfills all of the requirements of the registration rights agreements for the Unregistered Notes.

NOTE 6 - COMMITMENTS AND CONTINGENCIES

TESORO INDEMNIFICATION

Under the Amended Omnibus Agreement, Tesoro indemnifies us for certain matters, including known environmental, title and tax matters associated with the ownership of our assets at or before the closing of the TLLP initial public offering (“Initial Offering”) and subsequent acquisitions from Tesoro, excluding certain Los Angeles assets acquired from Tesoro in 2013. Under the Carson Assets Indemnity Agreement, Tesoro retained responsibility for remediation of known environmental liabilities due to the use or operation of certain Los Angeles assets prior to the acquisition dates, and has indemnified the Partnership for any losses incurred by the Partnership arising out of those remediation obligations. Environmental matters discovered subsequent to the Initial Offering and subsequent acquisitions are also indemnified to the extent they are identified prior to five years from the acquisition date. The indemnification under the Initial Offering for unknown environmental matters expired on April 26, 2016. See Note 3 of our Annual Report on Form 10-K for the year ended December 31, 2015, for additional information regarding the terms and conditions of the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement.

CONTINGENCIES

In the ordinary course of business, we may become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. The outcome of contingencies cannot always be predicted accurately, but we will accrue liabilities for these matters if the amount is probable and can be reasonably estimated. Contingencies arising after the closing of the Initial Offering from conditions existing before the Initial Offering, and the subsequent acquisitions from Tesoro that have been identified after the closing of each transaction, will be recorded in accordance with the indemnification terms set forth in the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement, as noted above. Any contingencies arising from events after the Initial Offering, and the subsequent acquisitions from Tesoro, will be our responsibility. Other than described in this Note 6, we do not have any other material outstanding lawsuits, administrative proceedings or governmental investigations.

Tesoro Logistics LP 2016 |11

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

ENVIRONMENTAL LIABILITIES

We are subject to federal, state and local laws and regulations governing environmental quality and pollution control. These laws and regulations require us to remove or remedy the effect of the disposal or release of specified substances at current and former operating sites. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Our environmental liabilities are estimates using internal and third-party assessments and available information to date. It is possible that these estimates will change as more information becomes available. Our liabilities for these environmental expenditures totaled $29 million and $33 million at March 31, 2016 and December 31, 2015, respectively.

TIOGA, NORTH DAKOTA CRUDE OIL PIPELINE RELEASE.In September 2013, the Partnership responded to the release of crude oil in a rural field northeast of Tioga, North Dakota (the “Crude Oil Pipeline Release”). The environmental liabilities related to the Crude Oil Pipeline Release include amounts estimated for remediation activities that will be conducted to restore the site for agricultural use. We have liabilities totaling $23 million and $27 million at March 31, 2016 and December 31, 2015, respectively. This incident was covered by our pollution legal liability insurance policy, subject to a $1 million deductible and a $25 million loss limit. Pursuant to this policy, we have received all insurance recoveries related to the Crude Oil Pipeline Release as of December 31, 2015. The estimated remediation costs of $66 million exceeded our policy loss limit by $41 million as of December 31, 2015.

LEGAL

QUESTAR GAS COMPANY V. QEP FIELD SERVICES COMPANY. Prior to the acquisition of all of the limited liability company interests of QEPFS, QEPFS’ former affiliate, Questar Gas Company (“QGC”) and its affiliate Wexpro, filed a complaint on May 1, 2012, asserting claims for breach of contract, breach of implied covenant of good faith and fair dealing, and an accounting and declaratory judgment related to a 1993 gathering agreement (the “1993 Agreement”) executed when the parties were affiliates. TLLP agreed to indemnify QEP Field Services Company for this claim under the acquisition agreement for QEPFS. Under the 1993 Agreement, certain of TLLP’s systems provide gathering services to QGC charging an annual gathering rate, which is based on the cost of service calculation. QGC disputed the annual calculation of the gathering rate, which has been calculated in the same manner since 1998, without objection by QGC. As a result of the rulings through the date of our acquisition of QEPFS, TLLP assumed a $21 million liability for estimated damages. On March 22, 2016, the parties in this dispute entered into a settlement and release agreement resolving all remaining issues and associated counter claims in exchange for TLLP’s payment of $15 million. We recognized a gain of $6 million in other income, net on our condensed statement of consolidated operations for the three months ended March 31, 2016 as a result of the settlement.

XTO ENERGY INC. V. QEP FIELD SERVICES COMPANY.XTO filed a complaint on January 30, 2014, asserting claims for breach of contract, breach of implied covenant of good faith and fair dealing, unjust enrichment and an accounting and declaratory judgment related to a 2010 gas processing agreement (the “XTO Agreement”). TLLP processes XTO’s natural gas on a firm basis under the XTO Agreement. The XTO Agreement requires TLLP to transport, fractionate and market XTO’s natural gas liquids derived from XTO’s processed gas. XTO is seeking monetary damages related to TLLP’s allocation of charges related to XTO’s share of natural gas liquid transportation, fractionation and marketing costs associated with shortfalls in contractual firm processing volumes. On March 29, 2016, the parties entered into a settlement and release agreement related to payments withheld by XTO unrelated to the allocation of charges they are challenging. Under the settlement and release agreement, XTO agreed to pay all historical undisputed charges by April 15, 2016 less the $22 million of allocated charges they are challenging, and to thereafter tender all similar undisputed charges timely. On April 15, 2016, XTO remitted a $21 million settlement payment related to all undisputed amounts. While we cannot currently estimate the final 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.

NOTE 7 - EQUITY AND NET EARNINGS PER UNIT

We had 61,188,041 common public units outstanding as of March 31, 2016. Additionally, Tesoro owned 32,445,115 of our common units and 1,900,515 of our general partner units (the 2% general partner interest) as of March 31, 2016, which together constitutes a 36% ownership interest in us.

12 | Tesoro Logistics LP 2016

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

ATM PROGRAM.On August 24, 2015, we filed a prospectus supplement to our shelf registration statement filed with the SEC on August 6, 2015, authorizing the continuous issuance of up to an aggregate of $750 million of common units, in amounts, at prices and on terms to be determined by market conditions and other factors at the time of our offerings (such continuous offering program, or at-the-market program, referred to as our “ATM Program”). During the three months ended March 31, 2016, we issued an aggregate of 103,748 common units under our ATM Program, generating proceeds of approximately $5 million, before issuance costs. The net proceeds from sales under the ATM Program will be used for general partnership purposes, which may include debt repayment, future acquisitions, capital expenditures and additions to working capital.

CHANGE IN THE CARRYING AMOUNT OF OUR EQUITY (in millions)

	Partnership
	Common			General Partner			Noncontrolling Interest			Total
Balance at December 31, 2015	$	1,707		$	(13	)	$	84		$	1,778
Equity offering under ATM Program, net of issuance costs	5			—			—			5
Effect of deconsolidation of RGS (a)	(2		)	—			(84		)	(86		)
Distributions (b)	(73		)	(25		)	—			(98		)
Net earnings	60			32			—			92
Contributions (c)	3			1			—			4
Other	1			—			—			1
Balance at March 31, 2016	$	1,701		$	(5	)	$	—		$	1,696

(a) As the result of the reassessment performed, we deconsolidated RGS causing the derecognition of noncontrolling interest and an opening equity impact totaling $86 million. The cumulative effect to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods.

(b) Represents cash distributions declared and paid during the three months ended March 31, 2016 relating to the fourth quarter of 2015.

(c) Includes Tesoro and TLGP contributions to the Partnership primarily related to reimbursements for capital spending pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement.

NET EARNINGS PER UNIT.We use the two-class method when calculating the net earnings per unit applicable to limited partners, because we have more than one participating security. At March 31, 2016, our participating securities consist of common units, general partner units and IDRs. Net earnings earned by the Partnership are allocated between the common and general partners in accordance with our partnership agreement. We base our calculation of net earnings per unit on the weighted average number of common limited partner units outstanding during the period.

Diluted net earnings per unit include the effects of potentially dilutive units on our common units, which consist of unvested service and performance phantom units. Distributions less than or greater than earnings are allocated in accordance with our partnership agreement.

Tesoro Logistics LP 2016 |13

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

NET EARNINGS PER UNIT (in millions, except per unit amounts)

	Three Months Ended March 31,
	2016			2015
Net earnings	$	92		$	70
Net earnings attributable to noncontrolling interest	—			(10		)
Net earnings, excluding noncontrolling interest	92			60
General partner’s distributions	(2		)	(2		)
General partner’s IDRs (a)	(30		)	(12		)
Limited partners’ distributions on common units	(76		)	(56		)
Distributions greater than earnings	$	(16	)	$	(10	)
General partner’s earnings:
Distributions	$	2		$	2
General partner’s IDRs (a)	30			12
Total general partner’s earnings	$	32		$	14
Limited partners’ earnings on common units:
Distributions	$	76		$	56
Allocation of distributions greater than earnings	(16		)	(10		)
Total limited partners’ earnings on common units	$	60		$	46
Weighted average limited partner units outstanding
Common units - basic	93.6			80.3
Common units - diluted	93.6			80.3
Net earnings per limited partner unit:
Common - basic	$	0.64		$	0.63
Common - diluted	$	0.64		$	0.63

(a) IDRs entitle the general partner to receive increasing percentages, up to 50%, of quarterly distributions in excess of $0.3881 per unit per quarter. The amount above reflects earnings distributed to our general partner net of $3 million of IDRs for the three months ended March 31, 2015 waived by TLGP. See Note 12 of our Annual Report on Form 10-K for the year ended December 31, 2015, for further discussion related to IDRs.

CASH DISTRIBUTIONS

Our partnership agreement, as amended, sets forth the calculation to be used to determine the amount and priority of cash distributions that the limited partner unitholders and general partner will receive. The table below summarizes the quarterly distributions related to our quarterly financial results:

QUARTERLY DISTRIBUTIONS

Quarter Ended	Quarterly Distribution Per Unit		Total Cash Distribution including general partner IDRs (in millions)		Date of Distribution	Unitholders Record Date
December 31, 2015	$	0.78	$	98	February 12, 2016	February 2, 2016
March 31, 2016 (a)	0.81		108		May 13, 2016	May 2, 2016

(a) This distribution was declared on April 20, 2016 and will be paid on the date of distribution.

14 | Tesoro Logistics LP 2016

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

NOTE 8 - OPERATING SEGMENTS

Our revenues are derived from three operating segments: Gathering, Processing and Terminalling and Transportation. Our Gathering segment consists of crude oil and natural gas gathering systems in the Bakken Shale/Williston Basin area of North Dakota and Montana and the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming. Our Processing segment consists of four gas processing complexes, including Green River Processing, LLC, which owns one fractionation facility and two gas processing complexes. Our Terminalling and Transportation segment consists of crude oil and refined products terminals and marine terminals, storage facilities for crude oil, refined products and petroleum coke handling, rail-car unloading facilities and pipelines, which transport products and crude oil.

Our revenues are generated from third-party contracts and from commercial agreements we have entered into with Tesoro, under which Tesoro pays us fees for gathering crude oil and natural gas, processing natural gas and distributing, transporting and storing crude oil, refined products, natural gas and natural gas liquids. The commercial agreements with Tesoro are described in greater detail in Note 3 to our Annual Report on Form 10-K for the year ended December 31, 2015. We do not have any foreign operations.

Our operating segments are strategic business units that offer different services in various geographical locations. We evaluate the performance of each segment based on its respective operating income. Certain general and administrative expenses are excluded from segment operating income as they are not directly attributable to a specific operating segment. Identifiable assets are those used by the segment, whereas other assets are principally cash and other assets that are not associated with a specific operating segment.

Tesoro Logistics LP 2016 |15

NOTES TO CONDENSED COMBINED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

SEGMENT INFORMATION RELATED TO CONTINUING OPERATIONS (in millions)

	Three Months Ended March 31,
	2016			2015
Revenues
Gathering:
Affiliate	$	22		$	26
Third-party	69			51
Total Gathering	91			77
Processing
Affiliate	26			20
Third-party	45			47
Total Processing	71			67
Terminalling and Transportation:
Affiliate	121			102
Third-party	17			17
Total Terminalling and Transportation	138			119
Total Segment Revenues	$	300		$	263
Segment Operating Income
Gathering	$	40		$	34
Processing	29			24
Terminalling and Transportation	69			58
Total Segment Operating Income	138			116
Unallocated general and administrative expenses	(12		)	(12		)
Interest and financing costs, net	(44		)	(37		)
Equity in earnings of unconsolidated affiliates	4			3
Other income, net	6			—
Net Earnings	$	92		$	70
Capital Expenditures
Gathering	$	25		$	51
Processing	5			1
Terminalling and Transportation	11			15
Total Capital Expenditures	$	41		$	67

16 | Tesoro Logistics LP 2016

MANAGEMENT’S DISCUSSION AND ANALYSIS

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

Unless the context otherwise requires, references in this report to “Tesoro Logistics LP,” “TLLP,” “the Partnership,” “we,” “us” or “our” refer to Tesoro Logistics LP, one or more of its consolidated subsidiaries or all of them taken as a whole. Unless the context otherwise requires, references in this report to “Tesoro” refer collectively to Tesoro Corporation and any of its subsidiaries, other than TLLP, its subsidiaries and its general partner. Unless the context otherwise requires, references in this report to “Predecessor” refer collectively to the acquired assets from Tesoro, and those assets, liabilities 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” section 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 our Annual Report on Form 10-K for the year ended December 31, 2015.

BUSINESS STRATEGY AND OVERVIEW

We are a leading full-service logistics company operating primarily in the western and mid-continent regions of the United States. We own and operate over 4,000 miles of crude oil, refined products and natural gas pipelines and 29 crude oil and refined products truck and marine terminals and have over 15 million barrels of storage capacity. In addition, we own and operate four natural gas processing complexes and one fractionation facility. Our assets are categorized into a Gathering segment, a Processing segment and a Terminalling and Transportation segment. For the three months ended March 31, 2016, approximately 56% of our total revenues were derived from Tesoro under various long-term, fee-based commercial agreements, many of which include minimum volume commitments.

We generate revenues by charging fees for gathering crude oil and natural gas, for terminalling, transporting and storing crude oil and refined products and for processing natural gas. We are generally not exposed to commodity price risk with respect to any of the crude oil, natural gas, natural gas liquids (“NGLs”) or refined products that we handle, with the exception of a nominal amount of condensate. For the NGLs that we handle under “keep-whole” agreements, the Partnership has a fee-based processing agreement with Tesoro, which minimizes the impact of commodity price movements during the annual period subsequent to renegotiation of terms and pricing each year. We do not engage in the trading of crude oil, natural gas, NGLs or refined products; therefore, we have minimal direct exposure to risks associated with commodity price fluctuations. However, through their effects on our customers’ operations, these risks indirectly influence our activities and results of operations over the long term.

STRATEGY AND GOALS

Our primary business objectives are to maintain stable cash flows and to increase our quarterly cash distribution per unit over time. We intend to accomplish these objectives by executing the following strategies:

• focus on opportunities to provide committed fee-based logistics services to Tesoro and third parties;

• evaluate investment opportunities that may arise from the growth of Tesoro’s refining and marketing business or from increased third-party activity to make capital investments to expand our existing asset base;

• pursue acquisitions of complementary assets from Tesoro as well as third parties; and

• seek to enhance the profitability of our existing assets by pursuing opportunities to add Tesoro and third-party volumes, improve operating efficiencies and increase utilization.

We have been implementing our strategy and goals discussed above, allowing us to steadily increase our cash flow available to be distributed to unitholders (“Distributable Cash Flow”) and to increase our distributions by 17% over the last year.

Tesoro Logistics LP 2016 |17

MANAGEMENT’S DISCUSSION AND ANALYSIS

Relative to these goals, in 2016, we intend to continue to implement this strategy and have completed or announced plans to:

• expand our assets on our crude oil gathering and transportation system (the “High Plains System”), located in the Bakken Shale/Williston Basin area of North Dakota and Montana (the “Bakken Region”) in support of 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 crude oil storage and transportation capacity and capabilities of our High Plains Pipeline;

◦ expanding our gathering footprint in the Bakken Region, including crude oil, natural gas and water, to enhance and improve overall basin logistics efficiencies;

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

◦ pursuing strategic assets in our footprint including potential acquisition of Tesoro's recently acquired interests in Tesoro Great Plains Midstream, LLC in the Bakken Region.

• expand and optimize our natural gas gathering and processing assets located in the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming (the “Rockies Region”) including:

◦ increase compression on our systems in the Green River and Vermillion basins to enhance natural gas volumes recovered from existing wells and support potential new drilling activity; and

◦ expand our gathering footprint and increase compression capabilities in the Uinta basin to increase volumes on our gathering systems and through our processing assets.

• grow our terminalling and transportation business across our Western U.S. footprint through:

◦ increasing our terminalling volumes by expanding capacity and growing our third-party services at certain of our terminals;

◦ optimize Tesoro volumes and grow third-party throughput at our terminalling and transportation assets; and

◦ pursuing strategic assets in our footprint including potential acquisition of Tesoro's recently announced acquisition of the terminalling assets from Flint Hills Resources in Alaska.

CURRENT MARKET CONDITIONS

For over 18 months, the spot prices of the commodities that we handle have declined, including crude oil, natural gas, natural gas liquids and refined products. This is due in part to the rapid growth of global supplies in excess of global demand growth of these commodities. The first quarter provided some stability to these prices and in most cases these markets witnessed higher prices than in the fourth quarter of 2015. A weakened and volatile commodity price environment has created challenges for crude oil and natural gas producers who have modified their drilling and production plans. The U.S. oil and gas drilling rig count has declined while at the same time, improved drilling techniques have increased production per well. In the crude oil and natural gas production basins where we operate, drilling for new wells is potentially not economic for producers to continue at sustained low commodity prices. Some producers have recently announced deferral of completion of existing wells which may further impact production volumes. Lower retail prices and improved economic conditions have led to increased demand for refined products from our downstream refining and marketing customers. In the first full quarter since the lifting of the 40 year old crude oil export ban, we have seen a limited impact to our business, as compared to the fourth quarter of 2015, and continue to expect minimal impact on our business in the short term. We continue to monitor the impact of these changes in market prices and fundamentals on our business in the western United States. Currently, we believe our diversified portfolios of businesses as well as our customers’ minimum volume commitments are sufficient to continue to meet our goals and objectives outlined above. However, if challenging market conditions for producers persist for a sustained period of time, our customers’ financial condition could deteriorate causing non-payment, their potential bankruptcy and project deferrals.

RESULTS OF OPERATIONS

A discussion and analysis of the factors contributing to our results of operations presented below includes the combined financial results of our Predecessor and the consolidated financial results of TLLP for all periods presented. The financial statements of our Predecessor have been prepared from the separate records maintained by Tesoro and may not necessarily be indicative of the conditions that would have existed or the results of operations if our Predecessor had been operated as an unaffiliated entity. The 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 future performance.

18 | Tesoro Logistics LP 2016

MANAGEMENT’S DISCUSSION AND ANALYSIS

NON-GAAP MEASURES

Our management uses a variety of financial and operating measures to analyze operating segment performance. Our management also uses additional measures that are known as “non-GAAP” financial measures in its evaluation of past performance and prospects for the future to supplement our financial information presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). These measures are significant factors in assessing our operating results and profitability and include earnings before interest, income taxes, loss attributable to Predecessor, and depreciation and amortization expense (“EBITDA”), Adjusted EBITDA and Distributable Cash Flow.

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 in a certain period. We define Distributable Cash Flow as adjusted EBITDA plus or minus amounts determined to be “special items” by our management based on their relative significance to cash flow in a certain period. Special items are presented in detail in our reconciliation of EBITDA to adjusted EBITDA for each period presented. Distributable Cash Flow plus or minus adjustments for the acquisition of noncontrolling interest in connection with that the merger of QEPM with TLLP is defined as “Pro Forma Distributable Cash Flow”. We provide complete reconciliation and discussion of items identified as special items with our presentation of adjusted EBITDA and Distributable Cash Flow. EBITDA, adjusted EBITDA, Distributable Cash Flow and Pro Forma Distributable Cash Flow are not measures prescribed by U.S. GAAP but are supplemental financial measures that are used by management and may be used by external users of our financial statements, such as industry analysts, investors, lenders and rating agencies, to assess:

• our operating performance as compared to other publicly traded partnerships in the midstream energy industry, without regard to historical cost basis or financing methods;

• the ability of our assets to generate sufficient cash flow to make distributions to our unitholders;

• our ability to incur and service debt and fund capital expenditures; and

• the viability of acquisitions and other capital expenditure projects and the returns on investment of various investment opportunities.

The U.S. GAAP measures most directly comparable to EBITDA and adjusted EBITDA are net earnings and net cash from operating activities. EBITDA and adjusted EBITDA should not be considered as an alternative 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. The U.S. GAAP measure most directly comparable to Distributable Cash Flow and Pro Forma Distributable Cash Flow is net earnings.

Investors and analysts use these financial measures to help analyze and compare companies in the industry on the basis of operating performance. These non-GAAP financial measures should not be considered in isolation or as a substitute for analysis of revenues, operating expenses, segment operating income, or any other measure of financial performance presented in accordance with U.S. GAAP. Our definitions of these non-GAAP financial measures may not be comparable to similarly titled measures of other companies, because they may be defined differently by other companies in our industry, thereby diminishing their utility.

OPERATING METRICS

Management utilizes the following operating metrics to evaluate performance and compare profitability to other companies in the industry: average revenue per barrel, average revenue per Million British thermal units (“MMBtu”), and average “keep-whole” fee per barrel. There are a variety of ways to calculate average revenue per barrel, average revenue per MMBtu, and average “keep-whole” fee per barrel; other companies may calculate these in different ways. We calculate average revenue per barrel as revenue divided by total throughput (barrels). We calculate average revenue per MMBtu as revenue divided by total throughput (MMBtu). We calculate average “keep-whole” fee per barrel as revenue divided by total throughput (barrels).

The following table and discussion is a summary of our results of operations for the three months ended March 31, 2016 and 2015, including a reconciliation of EBITDA and adjusted EBITDA to net earnings and net cash from operating activities and Distributable Cash Flow to net earnings (in millions, except per unit amounts). Our financial results may not be comparable as our Predecessor did not record revenues with Tesoro. We recorded general and administrative expenses and financed operations differently than the Partnership. See “Factors Affecting the Comparability of Our Financial Results” in our Annual Report on Form 10-K for the year ended December 31, 2015.

Tesoro Logistics LP 2016 |19

MANAGEMENT’S DISCUSSION AND ANALYSIS

CONSOLIDATED RESULTS

SUMMARY (In millions, except per unit amounts)

	Three Months Ended March 31,
	2016			2015
Revenues
Gathering	$	91		$	77
Processing	71			67
Terminalling and Transportation (a)	138			119
Total Revenues	300			263
Costs and Expenses
Operating and maintenance expenses (b)	105			90
General and administrative expenses	24			25
Depreciation and amortization expenses	44			44
Net loss on asset disposals and impairments	1			—
Total Costs and Expenses	174			159
Operating Income	126			104
Interest and financing costs, net	(44		)	(37		)
Equity in earnings of unconsolidated affiliates	4			3
Other income, net (c)	6			—
Net Earnings	$	92		$	70
Loss attributable to Predecessor	$	—		$	4
Net earnings attributable to noncontrolling interest	—			(10		)
Net Earnings Attributable to Partners	92			64
General partner’s interest in net earnings, including incentive distribution rights	(32		)	(14		)
Limited Partners’ Interest in Net Earnings	$	60		$	50
Net Earnings per Limited Partner Unit:
Common - basic	$	0.64		$	0.63
Common - diluted	$	0.64		$	0.63
Weighted Average Limited Partner Units Outstanding:
Common units - basic	93.6			80.3
Common units - diluted	93.6			80.3

20 | Tesoro Logistics LP 2016

MANAGEMENT’S DISCUSSION AND ANALYSIS

	Three Months Ended March 31,
	2016			2015
Reconciliation of EBITDA, Adjusted EBITDA and Distributable Cash Flow to Net Earnings:
Net earnings	$	92		$	70
Loss attributable to Predecessor	—			4
Depreciation and amortization expenses, net of Predecessor expense	44			44
Interest and financing costs, net of capitalized interest	44			37
EBITDA	180			155
Legal settlements (c)	(6		)	—
Billing of deficiency payments (d)	—			13
Adjusted EBITDA	174			168
Interest and financing costs, net	(44		)	(37		)
Maintenance capital expenditures (e)	(10		)	(10		)
Other adjustments for noncontrolling interest (f)	—			(8		)
Net earnings attributable to noncontrolling interest (f)	—			(10		)
Reimbursement for maintenance capital expenditures (e)	4			1
Other non-cash operating activities	11			7
Distributions from unconsolidated affiliates in excess of earnings (f)	7			1
Distributable Cash Flow	142			112
Pro forma adjustment for acquisition of noncontrolling interest (g)	—			17
Pro Forma Distributable Cash Flow	$	142		$	129
Reconciliation of EBITDA to Net Cash from Operating Activities:
Net cash from operating activities	$	161		$	148
Interest and financing costs, net	44			37
Changes in assets and liabilities	(11		)	(32		)
Other non-cash operating activities	(13		)	(4		)
Predecessor impact	—			6
Net loss on asset disposals and impairments	(1		)	—
EBITDA	$	180		$	155

(a) Our Predecessor did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment for assets acquired in the acquisitions from Tesoro prior to the effective date of each acquisition.

(b) Operating and maintenance expenses include net imbalance settlement gains of $1 million and $2 million for the three months ended March 31, 2016 and 2015, respectively. Also includes reimbursements primarily related to pressure testing and repairs and maintenance costs pursuant to the Amended Omnibus Agreement of $6 million for each of the three months ended March 31, 2016 and 2015.

(c) Includes gain recognized on settlement of the Questar Gas Company litigation, which closed the dispute on the annual calculation of the natural gas gathering rate further discussed at Note 6 of our condensed combined financial statements.

(d) During the three months ended March 31, 2015, we invoiced customers $13 million for deficiency payments related to opening balance sheet accounts receivable for the natural gas business acquired in 2014.

(e) Maintenance capital expenditures include tank restoration costs and expenditures required to ensure the safety, reliability, integrity and regulatory compliance of our assets. Maintenance capital expenditures included in the Distributable Cash Flow calculation are presented net of Predecessor amounts.

(f) Other adjustments for noncontrolling interest represent cash distributions less than our controlling interest in income and depreciation as well as other adjustments for depreciation and maintenance capital expenditures applicable to the noncontrolling interest. As a result of the deconsolidation of Rendezvous Gas Services, L.L.C. (“RGS”) as of January 1, 2016, we no longer have noncontrolling interest amounts reflected in our financial statements. Changes to the prior period presentation of results and other financial information are not required and have not been made. For the three months ended March 31, 2016, cash and non-cash amounts associated with RGS are reflected in equity in earnings of unconsolidated affiliates in our condensed statement of consolidated operations in addition to the Distributable Cash Flow adjustment for distributions from unconsolidated affiliates in excess of earnings. There was no impact to Distributable Cash Flow for the three months ended March 31, 2016 as a result of the deconsolidation.

(g) Reflects the adjustment to include the noncontrolling interest in QEPM as controlling interest based on the pro forma assumption that the merger of QEPM with TLLP occurred on January 1, 2015.

Tesoro Logistics LP 2016 |21

MANAGEMENT’S DISCUSSION AND ANALYSIS

THREE MONTHS ENDED MARCH 31, 2016 VERSUS MARCH 31, 2015

OVERVIEW.Our net earnings for the three months ended March 31, 2016 (“2016 Quarter”) increased$22 million to $92 million from $70 million for the three months ended March 31, 2015 (“2015 Quarter”).

REVENUES.The increase in revenue of $37 million, or 14%, to $300 million was driven primarily by the crude oil and refined product storage and pipeline assets in Los Angeles, California (the “LA Storage and Handling Assets”) purchased from Tesoro in November 2015. In addition, revenue increases were driven by higher crude oil gathering throughput on the Tesoro High Plains Pipeline, increased gas gathering rates and increased “keep-whole” processing throughput.

OPERATING AND MAINTENANCE EXPENSES.Operating expenses increased $15 million to $105 million in the 2016 Quarter compared to the 2015 Quarter primarily due to the impact of the deconsolidation of RGS as certain amounts are no longer being eliminated in consolidation and higher pipeline throughput costs associated with the LA Storage and Handling Assets.

INTEREST AND FINANCING COSTS, NET. Net interest and financing costs increased $7 million, primarily related to borrowings on the secured dropdown credit facility (the “Dropdown Credit Facility”) related to the acquisition of the LA Storage and Handling Assets and write-off of debt issuance costs in connection with debt transactions as discussed in the “Capital Resources and Liquidity” section.

OTHER INCOME, NET.The 2016 Quarter includes a settlement gain of $6 million related to the legal settlement discussed further in Part II, Item 1 of this Quarterly Report on Form 10-Q.

SEGMENT RESULTS OF OPERATIONS

THREE MONTHS ENDEDMARCH 31, 2016 VERSUS THREE MONTHS ENDEDMARCH 31, 2015

GATHERING SEGMENT

Our Gathering segment consists of crude oil, natural gas and produced water gathering systems in the Bakken Region and the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming (the “Rockies Region”). Our High Plains System, located in the Bakken Region, gathers and transports crude oil from various production locations in this area for transportation to Tesoro’s North Dakota refinery and other destinations in the Bakken Region, including export rail terminals and pipelines. Our natural gas gathering systems include the gathering systems of our equity method investments. In addition, we own four gathering systems and two pipelines regulated by the Federal Energy Regulatory Commission through, which we provide natural gas and crude oil transportation services.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

GATHERING SEGMENT OPERATING RESULTS (in millions, except volumes, revenue per barrel and revenue per MMBtu amounts)

	Three Months Ended March 31,
	2016		2015
Revenues
Gas gathering revenues	$	43	$	36
Crude oil gathering pipeline revenues	35		27
Crude oil gathering trucking revenues	9		14
Other revenues	4		—
Total Revenues	91		77
Costs and Expenses
Operating and maintenance expenses (a)	32		23
General and administrative expenses	3		3
Depreciation and amortization expenses	15		17
Loss on asset disposals and impairments	1		—
Total Costs and Expenses	51		43
Gathering Segment Operating Income	$	40	$	34
Volumes
Gas gathering throughput (thousands of MMBtu/d) (b)	903		1,020
Average gas gathering revenue per MMBtu (b)	$	0.53	$	0.39
Crude oil gathering pipeline throughput (Mbpd)	216		156
Average crude oil gathering pipeline revenue per barrel	$	1.78	$	1.95
Crude oil gathering trucking volume (Mbpd)	29		46
Average crude oil gathering trucking revenue per barrel	$	3.27	$	3.23

(a) Operating and maintenance expenses include imbalance settlement gain of $1 million for the three months ended March 31, 2015. In addition, the three months ended March 31, 2015 contain $6 million in fees paid by us to Rendezvous Gas Services, L.L.C. (“RGS”) for volumes attributable to our operations that were eliminated in consolidation. However, those fees are no longer eliminated as a result of the deconsolidation of RGS as of January 1, 2016. Fees paid by us to RGS for the three months ended March 31, 2016 that were not eliminated were $7 million.

(b) Prior to the deconsolidation of the RGS as of January 1, 2016, fees paid by us to RGS were eliminated upon consolidation and third-party transactions, including revenue and throughput volumes, were included in our results of operations. Third party volumes associated with RGS, included in gas gathering volume for the three months ended March 31, 2015, were 146 thousand MMBtu/d and reduced our average gas gathering revenue per MMBtu by $0.05. RGS had third party gas gathering volumes of 126 thousand MMBtu/d for the three months ended March 31, 2016. These volumes are no longer included in our operational data.

VOLUMES. Average crude oil gathering pipeline throughput volumes increased60 thousand barrel per day (“Mbpd”), or 38%, in the 2016 Quarter as a result of projects to expand the pipeline gathering system and interconnections with additional origin and destinations. Crude oil gathering trucking volumes decreased17 Mbpd, or 37%, during the 2016 Quarter as more volumes were gathered via pipeline on to our High Plains Pipeline. The decrease in gas gathering throughput volumes of 117 thousand MMBtu/d, or 11% in the 2016 Quarter as compared to the 2015 Quarter is driven by the deconsolidation of RGS.

FINANCIAL RESULTS. Gathering revenues increased$14 million, or 18%, to $91 million for the 2016 Quarter compared to $77 million in the 2015 Quarter primarily due to higher crude oil pipeline throughput on our High Plains Pipeline and higher recognized gas gathering rates and gas gathering throughput, excluding the RGS deconsolidation impact. Partially offsetting the increase in gas gathering and crude oil gathering pipeline revenues were decreases in crude oil gathering trucking revenues due to lower volumes in the 2016 Quarter relative to the 2015 Quarter due to increased usage of the High Plains Pipeline in lieu of trucking.

Operating and maintenance expenses increased$9 million, or 39%, to $32 million in the 2016 Quarter compared to $23 million in the 2015 Quarter primarily related to the presentation of $7 million in costs paid to RGS that were eliminated for all periods prior to the deconsolidation as of January 1, 2016 and a $3 million accrual for the anticipated settlement of historical right-of-way disputes, which will be reimbursed by Tesoro pursuant to its pipeline transportation agreement with us.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

PROCESSING SEGMENT

PROCESSING SEGMENT OPERATING RESULTS (in millions, except MMBtu/d, bpd and revenue per MMBtu and fee per barrel)

	Three Months Ended March 31,
	2016		2015
Revenues
NGLs processing revenues	$	26	$	20
Fee-based processing revenues	26		29
Other processing revenues	19		18
Total Revenues	71		67
Costs and Expenses
Operating and maintenance expenses	31		30
General and administrative expenses	—		2
Depreciation and amortization expenses	11		11
Total Costs and Expenses	42		43
Processing Segment Operating Income	$	29	$	24
Volumes
NGLs processing throughput (Mbpd)	8		7
Average “keep-whole” fee per barrel of NGLs	$	35.08	$	31.84
Fee-based processing throughput (thousands of MMBtu/d)	675		689
Average fee-based processing revenue per MMBtu	$	0.43	$	0.46

VOLUMES. Fee-based processing volumes decreased14 thousand MMBtu/d, or 2%, to 675 thousand MMBtu/d in the 2016 Quarter. Average NGLs processing volumes increased1 Mbpd, or 14%, to 8 Mbpd in the 2016 Quarter as a result of higher production of gas from keep-whole customers combined with increased optimization of our processing facilities, partially offset by decreased production of fee-based gas customers.

FINANCIAL RESULTS. Processing revenues increased$4 million, or 6%, to $71 million for the 2016 Quarter compared to $67 million in the 2015 Quarter primarily due to an increase in the average keep-whole processing fee per barrel of NGLs as well as the increase in the processing volumes. Partially offsetting the increases in keep-whole processing were decreases in the fee-based processing as the average fee-based processing revenue per MMBtu and volumes declined in the 2016 Quarter compared to the 2015 Quarter.

TERMINALLING AND TRANSPORTATION SEGMENT

Our Terminalling and Transportation segment consists of regulated common carrier refined products pipeline systems, crude oil and refined products terminals and storage facilities, a rail-car unloading facility, a petroleum coke handling and storage facility and other pipelines, which transport products and crude oil from Tesoro’s refineries to nearby facilities.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

TERMINALLING AND TRANSPORTATION SEGMENT OPERATING RESULTS (in millions, except barrel and per barrel amounts)

	Three Months Ended March 31,
	2016		2015
Revenues (a)
Terminalling revenues	$	108	$	90
Pipeline transportation revenues	30		29
Total Revenues	138		119
Costs and Expenses
Operating and maintenance expenses (b)	42		37
General and administrative expenses	9		8
Depreciation and amortization expenses	18		16
Total Costs and Expenses	69		61
Terminalling and Transportation Segment Operating Income	$	69	$	58
Volumes
Terminalling throughput (Mbpd)	907		918
Average terminalling revenue per barrel	$	1.31	$	1.10
Pipeline transportation throughput (Mbpd)	824		818
Average pipeline transportation revenue per barrel	$	0.40	$	0.39

(a) Our Predecessor did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment prior to the effective date of the acquisition of the LA Storage and Handling Assets.

(b) Operating and maintenance expenses include imbalance settlement gains of $1 million for boththe three months ended March 31, 2016 and 2015, respectively.

VOLUMES. Terminalling throughput volumes and pipeline transportation throughput volumes declined slightly in the 2016 Quarter compared to the 2015 Quarter due primarily to maintenance downtime at our customers’ refineries.

FINANCIAL RESULTS. Revenues increased$19 million, or 16%, to $138 million in the 2016 Quarter compared to $119 million in the 2015 Quarter primarily as a result of the commercial storage agreements executed with Tesoro in connection with the LA Storage and Handling Asset acquisition.

CAPITAL RESOURCES AND LIQUIDITY

OVERVIEW

Our primary cash requirements relate to funding capital expenditures, meeting operational needs and paying distributions to our unitholders. We expect our ongoing sources of liquidity to include cash generated from operations, reimbursement for certain maintenance and expansion expenditures, borrowings under the secured revolving credit facility (the “Revolving Credit Facility”), the Dropdown Credit Facility and issuances of additional debt and equity securities. We believe that cash generated from these sources will be sufficient to meet our short-term working capital, long-term capital expenditure, acquisition and debt servicing requirements and allow us to fund at least the minimum quarterly cash distributions.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

CAPITALIZATION

CAPITAL STRUCTURE (in millions)

Debt principal, including current maturities:	March 31, 2016			December 31, 2015
Credit Facilities	$	535		$	555
Senior Notes	2,320			2,320
Capital lease obligations	8			8
Total Debt	2,863			2,883
Unamortized Issuance Costs (a)	(42		)	(39		)
Debt, Net of Unamortized Issuance Costs	2,821			2,844
Total Equity	1,696			1,778
Total Capitalization	$	4,517		$	4,622

(a) Includes unamortized premium associated with our 5.875% Senior Notes due 2020 of $4 million at both March 31, 2016 and December 31, 2015.

EQUITY OVERVIEW

Our partnership agreement authorizes us to issue an unlimited number of additional partnership securities on the terms and conditions determined by our general partner without the approval of the unitholders. Costs associated with the issuance of securities are allocated to all unitholders’ capital accounts based on their ownership interest at the time of issuance.

ATM PROGRAM. On August 24, 2015,we filed a prospectus supplement to our shelf registration statement filed with the Securities and Exchange Commission (“SEC”) on August 6, 2015, authorizing the continuous issuance of up to an aggregate of $750 million of common units, in amounts, at prices and on terms to be determined by market conditions and other factors at the time of our offerings (such continuous offering program, or at-the-market program, referred to as our “ATM Program”). During the three months ended March 31, 2016, we issued an aggregate of 103,748 common units under our ATM Program, generating proceeds of approximately $5 million, before issuance costs. We paid fees of less than $0.1 million related to the issuance of units under this program for the three months ended March 31, 2016. The net proceeds from sales under the ATM Program will be used for general partnership purposes, which may include debt repayment, future acquisitions, capital expenditures and additions to working capital.

DEBT OVERVIEW AND AVAILABLE LIQUIDITY

Our secured Revolving Credit Facility, secured Dropdown Credit Facility and Senior Notes due 2019, 2020, 2021 and 2022 contain covenants that may, among other things, limit or restrict our ability (as well as the ability of our subsidiaries) to engage in certain activities. There have been no changes in these covenants from those described in the Annual Report on 10-K for the year ended December 31, 2015. We do not believe that these limitations will restrict our ability to pay distributions. Additionally, our secured Revolving Credit Facility and secured Dropdown Credit Facility contain covenants that require us to maintain certain interest coverage and leverage ratios. We submit compliance certifications to the bank quarterly, and we were in compliance with our debt covenants as of March 31, 2016.

AVAILABLE CAPACITY UNDER OUR CREDIT FACILITIES (in millions)

	Total Capacity		Amount Borrowed as of March 31, 2016		Available Capacity		Weighted Average Interest Rate		Expiration
Revolving Credit Facility	$	600	$	285	$	315	2.76	%	January 29, 2021
Dropdown Credit Facility	1,000		250		750		2.70	%	January 29, 2021
Total Credit Facilities	$	1,600	$	535	$	1,065

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MANAGEMENT’S DISCUSSION AND ANALYSIS

EXPENSES AND FEES OF OUR CREDIT FACILITIES

Credit Facility	30 day Eurodollar (LIBOR) Rate at March 31, 2016	Eurodollar Margin	Base Rate	Base Rate Margin	Commitment Fee (unused portion)
Revolving Credit Facility (a)	0.44%	2.25%	3.50%	1.25%	0.38%
Dropdown Credit Facility (a)	0.44%	2.26%	3.50%	1.26%	0.38%

(a) We have 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 Revolving Credit Facility. We also incur commitment fees for the unused portion of the Revolving Credit Facility at an annual rate. Letters of credit outstanding under the Revolving Credit Facility incur fees at the Eurodollar margin rate.

DEBT REPAYMENTS.On February 3, 2016, we paid the full amount of the Unsecured Term Loan Facility, including accrued interest, with proceeds drawn from the secured Dropdown Credit Facility. All commitments under the Unsecured Term Loan Facility were terminated effective with the repayment.

EXCHANGE OFFER.On February 26, 2016, the Partnership commenced an offer to exchange (the “Exchange”) its existing unregistered 5.50% Senior Notes due 2019 (“2019 Notes”) and 6.25% Senior Notes due 2022 (“2022 Notes”)(together, “Unregistered Notes”) for an equal principal amount of 5.50% Senior Notes due 2019 and 6.25% Senior Notes due 2022 (the “Exchange Notes”), respectively, that were registered under the Securities Act of 1933, as amended. On April 14, 2016, the Exchange was completed for all of the 2019 Notes and substantially all of the 2022 Notes. The terms of the Exchange Notes are identical in all material respects (including principal amount, interest rate, maturity and redemption rights) to the Unregistered Notes for which they were exchanged, except that the Exchange Notes generally are not subject to transfer restrictions. The Exchange fulfills all of the requirements of the registration rights agreements for the Unregistered Notes.

SOURCES AND USES OF CASH

COMPONENTS OF CASH FLOWS (in millions)

	Three Months Ended March 31,
	2016			2015
Cash Flows From (Used In):
Operating Activities	$	161		$	148
Investing Activities	(58		)	(84		)
Financing Activities	(115		)	(67		)
Decrease in Cash and Cash Equivalents	$	(12	)	$	(3	)

OPERATING ACTIVITIES.Net cash from operating activities increased$13 million to $161 million in the 2016 Quarter compared to $148 million for the 2015 Quarter. The increase in cash from operations was primarily driven by the increase in net earnings of $22 million from the 2015 Quarter to the 2016 Quarter and a $12 million impact of non-cash items. These increases were partially offset by the change in working capital.

INVESTING ACTIVITIES.Net cash used in investing activities for the 2016 Quarter decreased$26 million to $58 million compared to $84 million in the 2015 Quarter. The decrease related to this outflow was a result of higher capital expenditures in the 2015 Quarter including spending related to the construction of the Connolly Gathering System, the second phase of the Bakken area storage hub, and various projects on our Southern California distribution system. See “Capital Expenditures” below for a discussion of the various maintenance and growth projects in the 2016 Quarter.

FINANCING ACTIVITIES.Net cash used in financing activities for the 2016 Quarter was $115 million compared to $67 million for the 2015 Quarter. We paid higher quarterly cash distributions totaling $98 million during the 2016 Quarter compared to quarterly cash distributions totaling $70 million paid in the 2015 Quarter. We paid down $20 million of net borrowings under our secured Revolving Credit Facility during the 2016 Quarter. In addition, $250 million of borrowings under our secured Dropdown Credit Facility were used to pay off the Unsecured Term Loan Facility.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

CAPITAL EXPENDITURES

The Partnership’s operations are capital intensive, requiring investments to expand, upgrade or enhance existing operations and to maintain assets and ensure regulatory compliance. Growth capital expenditures include expenditures to purchase or construct new assets and to expand existing facilities or services that may increase throughput capacity on our pipelines, in our terminals and at our processing facilities, increase storage capacity, increase well connections and compression as well as other services at our facilities. Maintenance capital expenditures include expenditures required to maintain equipment reliability and integrity and to ensure regulatory compliance. Actual and estimated amounts described below include amounts representing capitalized interest and labor. Our capital expenditures are funded primarily with cash generated from operations, reimbursements for certain growth and maintenance capital expenditures, borrowings under our revolving credit facilities and issuances of additional debt and equity securities, as needed.

During the 2016 Quarter, we spent $31 million, net of $1 million in reimbursements from entities including Tesoro, on growth capital projects and $6 million, net of $3 million in reimbursements from entities including Tesoro, on maintenance capital projects. Cost estimates for projects currently in process or under development are subject to further review, analysis and permitting requirements, which may result in revisions to our current spend estimates.

TLLP's expected 2016 capital expenditures are currently forecasted to total $275 million, or $300 million offset by expected reimbursements of $25 million primarily for maintenance capital expenditures. Our revised capital spending estimate reflects the deferral of several discretionary projects and delays in several growth projects in both the Rockies and Bakken regions attributed to low commodity prices and our current view of spending related to the Los Angeles Refinery Interconnect Pipeline System.

MAJOR GROWTH CAPITAL PROJECTS IN PROCESS OR UNDER DEVELOPMENT (in millions)

	Total Project Expected Capital Expenditures		Actual 2016 Capital Expenditures
Completed:
Bakken Area Storage Hub (a)	$	30	$	3
In Process:
Uinta Compression (b)	$	60	$	12
High Plains Pipeline Expansion (c)	30		2
Terminal Expansions (d)	30		1
Under Development:
Los Angeles Refinery Interconnect Pipeline System (e)	$	200	$	—

(a) The construction of the second phase of the Bakken Area Storage Hub provides storage for the Bakken region with tanks located in two strategic areas of the basin. With its completion, storage capacity has grown to over 1 million barrels of capacity.

(b) Projects to increase compression for our Uinta natural gas gathering systems and expand our gathering system in the Uinta basin.

(c) Projects to expand crude oil gathering throughput capacity on the High Plains Pipeline in McKenzie County, North Dakota. Part of this planned expansion is no longer necessary, as a result of Tesoro’s recent acquisition of Great Northern Midstream, which we expect to be offered to us in the second half of 2016.

(d) Projects to increase the throughput capacity and service capabilities at our refined products terminals.

(e) The pipeline interconnect 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 is subject to final Board of Directors approval, project scoping, engineering and regulatory approval.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

DISTRIBUTIONS

Our partnership agreement, as amended, sets forth the calculation to be used to determine the amount and priority of cash distributions that the limited partner unitholders and general partner will receive.

QUARTERLY DISTRIBUTIONS

Quarter Ended	Total Quarterly Distribution Per Unit		Total Quarterly Distribution Per Unit, Annualized		Total Cash Distribution including general partner incentive distribution rights (in millions)		Date of Distribution	Unitholders Record Date
December 31, 2015	$	0.78	$	3.12	$	98	February 12, 2016	February 2, 2016
March 31, 2016 (a)	0.81		3.24		108		May 13, 2016	May 2, 2016

(a) This distribution was declared on April 20, 2016 and will be paid on the date of distribution.

ENVIRONMENTAL AND OTHER MATTERS

ENVIRONMENTAL REGULATION.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 or otherwise relate to protection of the environment. Compliance with these laws and regulations may require us to remediate environmental damage from any discharge of petroleum, natural gas or chemical substances from our facilities or require us to install additional pollution control equipment on our equipment and facilities. Our failure to comply with these or any other environmental or safety-related regulations could result in the assessment of administrative, civil, or criminal penalties, the imposition of investigatory and remedial liabilities, and the issuance of injunctions that may subject us to additional operational constraints.

Future expenditures may be required to comply with the federal, state and local environmental requirements for our various sites, including our storage facilities, pipelines, gas processing complexes and refined products terminals. The impact of these legislative and regulatory developments, if enacted or adopted, could result in increased compliance costs and additional operating restrictions on our business, each of which could have an adverse impact on our liquidity, financial position or results of operations. See Note 6 to our condensed combined consolidated financial statements for additional information regarding environmental regulation and Tesoro indemnification. See our discussion of the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement in Note 3 of our Annual Report on Form 10-K for the year ended December 31, 2015 and Part II, Item 1 of this Quarterly Report on Form 10-Q for more information regarding the indemnification of certain environmental matters provided to us by Tesoro and discussion of other certain environmental obligations.

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 revenues, cash flows, capital expenditures and other financial items. These statements also relate to our business strategy, goals and expectations concerning our market position, future operations 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:

• changes in global economic conditions and the effects of a global economic downturn on our business, on the business of our key customers, including Tesoro, and on our customers’ suppliers, customers, business partners and credit lenders;

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MANAGEMENT’S DISCUSSION AND ANALYSIS

• a material decrease in the crude oil and natural gas produced in the Bakken Shale/Williston Basin area of North Dakota and Montana;

• a material decrease in the natural gas and crude oil produced in the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming;

• the ability of our key customers, including Tesoro, to remain in compliance with the terms of their outstanding indebtedness;

• changes in insurance markets impacting costs and the level and types of coverage available;

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

• the coverage and ability to recover claims under our insurance policies;

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

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

• changes in our cash flow from operations;

• impact of QEP Resources’ and Questar Gas Company’s failure to perform under the terms of our gathering agreements as they are our largest customers in TLLP’s natural gas business;

• the risk of contract cancellation, non-renewal or failure to perform by those in our supply and distribution chains, including Tesoro and Tesoro’s customers, and the ability to replace such contracts and/or customers;

• the suspension, reduction or termination of Tesoro’s obligation under our commercial agreements and our secondment agreement;

• a material decrease in profitability among our customers, including Tesoro;

• earthquakes or other natural disasters affecting operations;

• direct or indirect effects on our business resulting from actual or threatened terrorist incidents, cyber-security breaches or acts of war;

• weather conditions affecting operations by us or our key customers, including Tesoro, or the areas in which the customers we serve operate;

• disruptions due to equipment interruption or failure at our facilities, Tesoro’s facilities or third-party facilities on which our key customers, including Tesoro, are dependent;

• changes in the expected value of and benefits derived from acquisitions;

• actions of customers and competitors;

• changes in our credit profile;

• 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, compliance costs or other factors beyond our control;

• operational hazards inherent in refining operations and in transporting and storing crude oil, natural gas, NGLs and refined products;

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

• seasonal variations in demand for natural gas and refined products;

• adverse rulings, judgments, or settlements in litigation or other legal or tax matters, including unexpected environmental remediation costs in excess of any accruals, which affect us or Tesoro;

• 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 SEC. 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. 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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QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

MARKET RISK

Market risk is the risk of financial loss arising from adverse changes in market rates and prices. As we do not own the refined products, natural gas or crude oil that are shipped through our pipelines, distributed through our terminals or held in our storage facilities we have minimal direct exposure to risks associated with fluctuating commodity prices. In addition, our commercial agreements with Tesoro are indexed for inflation and contain fuel surcharge provisions that are designed to substantially mitigate our exposure to increases in diesel fuel prices and the cost of other supplies used in our business. Our exposure to commodity price risk related to imbalance gains and losses or to diesel fuel or other supply costs are currently not expected to be material to our financial position and we do not intend to hedge our exposure.

We bear a limited degree of commodity price risk with respect to our gathering contracts. Specifically, pursuant to our contracts, we retain and sell condensate that is recovered during the gathering of natural gas. Thus, a portion of our revenue is dependent on the price received for the condensate. Condensate historically sells at a price representing a slight discount to the price of crude oil. We consider our exposure to commodity price risk associated with these arrangements to be minimal based on the amount of revenues generated under these arrangements compared to our overall revenues. We do not enter into commodity derivative instruments because of the minimal impact of commodity price risk on our liquidity, financial position and results of operations. Assuming all other factors remained constant, a $1 change in condensate pricing, based on our quarter-to-date average throughput, would be less than $0.1 million on an annual basis. This analysis may differ from actual results.

We process gas for certain producers under “keep-whole” processing agreements. Under a “keep-whole” agreement, a producer transfers title to the NGLs produced during gas processing, and the processor, in exchange, delivers to the producer natural gas with a British thermal unit content equivalent to the NGLs removed. We have entered into an agreement with Tesoro (“Keep-Whole Agreement”) to transfer the market risk associated with the purchase of natural gas. The Keep-Whole Amendment provides that the service fees payable for incremental volumes of NGLs above 315,000 gallons per day will be a mutually agreed upon fee. See Note 3 of our Annual Report on Form 10-K for the year ended December 31, 2015, for additional information on our Keep-Whole Agreement.

INTEREST RATE RISK

Our use of debt directly exposes us to interest rate risk. Variable-rate debt, such as borrowings under our Revolving Credit Facility and Dropdown Credit Facility, exposes us to short-term changes in market rates that impact our interest expense. 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 rates higher than the current market. The fair value of our fixed rate debt was estimated using quoted market prices. The carrying value and fair value of our debt were both approximately $2.9 billion as of March 31, 2016. The carrying value and fair value of our debt were approximately $2.9 billion and $2.8 billion at December 31, 2015, respectively. Unless interest rates increase significantly in the future, our exposure to interest rate risk should be minimal. With all other variables constant, a 0.25% change in the interest rate associated with the borrowings outstanding under our Revolving Credit Facility or Dropdown Credit Facility at March 31, 2016, would change annual interest expense by less than $1 million for both facilities. As of March 31, 2016, we had $285 million and $250 million of borrowings under our Revolving Credit Facility and Dropdown Credit Facility, respectively. Any change in interest rates would affect cash flows, but not the fair value of the debt we incur under our Revolving Credit Facility and Dropdown Credit Facility.

We do not currently have in place any hedges or forward contracts to reduce our exposure to interest rate risks; however, we continue to monitor the market and our exposure, and may enter into these transactions in the future. We believe in the short-term we have acceptable interest rate risk and continue to monitor the risk on our long-term obligations.

ITEM 4. 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 March 31, 2016 that have materially affected or are reasonably likely to materially affect these controls.

Tesoro Logistics LP 2016 |31

CONTROLS AND PROCEDURES

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.

32 | Tesoro Logistics LP 2016

LEGAL PROCEEDINGS AND RISK FACTORS

PART II - OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

In the ordinary course of business, we may become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. The following discussion should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2015. Although we cannot provide assurance, we believe that an adverse resolution of the matters described below will not have a material impact on our liquidity, consolidated financial position, or results of operations.

TIOGA, NORTH DAKOTA CRUDE OIL PIPELINE RELEASE. In September 2013, the Partnership responded to the release of crude oil in a rural field northeast of Tioga, North Dakota (the “Crude Oil Pipeline Release”). The environmental liabilities related to the Crude Oil Pipeline Release include amounts estimated for remediation activities that will be conducted to restore the site for agricultural use. We have liabilities totaling $23 million and $27 million at March 31, 2016 and December 31, 2015, respectively. This incident was covered by our pollution legal liability insurance policy, subject to a $1 million deductible and a $25 million loss limit. Pursuant to this policy, we have received all insurance recoveries related to the Crude Oil Pipeline Release as of December 31, 2015. The estimated remediation costs of $66 million exceeded our policy loss limit by $41 million as of December 31, 2015.

On March 24, 2016, we received a closure letter from the U.S. Department of Transportation, through the Pipeline and Hazardous Materials Safety Administration (“PHMSA”) concerning PHMSA’s October 31, 2013 safety order related to the Crude Oil Pipeline Release. No further action is required to comply with the safety order.

QUESTAR GAS COMPANY V. QEP FIELD SERVICES COMPANY. Prior to the acquisition of all of the limited liability company interests of QEP Field Services, LLP (“QEPFS”), QEPFS’ former affiliate, Questar Gas Company (“QGC”) and its affiliate Wexpro, filed a complaint on May 1, 2012, asserting claims for breach of contract, breach of implied covenant of good faith and fair dealing, and an accounting and declaratory judgment related to a 1993 gathering agreement (the “1993 Agreement”) executed when the parties were affiliates. TLLP agreed to indemnify QEP Field Services Company for this claim under the acquisition agreement for QEPFS. Under the 1993 Agreement, certain of TLLP’s systems provide gathering services to QGC charging an annual gathering rate, which is based on the cost of service calculation. QGC disputed the annual calculation of the gathering rate, which has been calculated in the same manner since 1998, without objection by QGC. As a result of the rulings through the date of our acquisition of QEPFS, TLLP assumed a $21 million liability for estimated damages. On March 22, 2016, the parties in this dispute entered into a settlement and release agreement resolving all remaining issues and associated counter claims in exchange for Tesoro Logistics LP’s (“TLLP”) payment of $15 million.

XTO ENERGY INC. V. QEP FIELD SERVICES COMPANY.XTO Energy Inc. (“XTO”) filed a complaint on January 30, 2014, asserting claims for breach of contract, breach of implied covenant of good faith and fair dealing, unjust enrichment and an accounting and declaratory judgment related to a 2010 gas processing agreement (the “XTO Agreement”). TLLP processes XTO’s natural gas on a firm basis under the XTO Agreement. The XTO Agreement requires TLLP to transport, fractionate and market XTO’s natural gas liquids derived from XTO’s processed gas. XTO is seeking monetary damages related to TLLP’s allocation of charges related to XTO’s share of natural gas liquid transportation, fractionation and marketing costs associated with shortfalls in contractual firm processing volumes. On March 29, 2016, the parties entered into a settlement and release agreement related to payments withheld by XTO unrelated to the allocation of charges they are challenging. Under the settlement and release agreement, XTO agreed to pay all historical undisputed charges by April 15, 2016 less the $22 million of allocated charges they are challenging, and to thereafter tender all similar undisputed charges timely. On April 15, 2016, XTO remitted a $21 million settlement payment related to all undisputed amounts.

ITEM 1A. RISK FACTORS

There have been no significant changes from the risk factors previously disclosed in Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2015.

Tesoro Logistics LP 2016 |33

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS AND EXHIBITS

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

PURCHASES BY TESORO LOGISTICS LP OF ITS COMMON STOCK

Period	Total Number of Units Purchased (a)	Average Price Paid per Unit		Total Number of Units Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Units that May Yet Be Purchased Remaining at Period End Under the Plan or Programs (in millions)
January 2016	23,456	$	40.44	—	$	—
February 2016	—	$	—	—	$	—
March 2016	—	$	—	—	$	—
Total	23,456			—

(a) The entire 23,456 units were acquired from employees during the first quarter of 2016 to satisfy tax withholding obligations in connection with the vesting of performance phantom unit awards issued to them.

ITEM 6. EXHIBITS

(a)Exhibits

Exhibit Number	Description of Exhibit
*10.1	Amendment No. 2 to Secondment and Logistics Services Agreement, dated as of March 31, 2016, among Tesoro Refining & Marketing Company LLC, Tesoro Companies Inc., Tesoro Alaska Company LLC, Tesoro Great Plains Midstream LLC, Tesoro Great Plains Gathering and Marketing LLC, BakkenLink Pipeline LLC, ND Land Holdings LLC, Tesoro Alaska Terminals LLC, Tesoro Logistics GP LLC, Tesoro Logistics Operations LLC, Tesoro Logistics Pipelines LLC, Tesoro High Plains Pipeline Company LLC, Tesoro Logistics Northwest Pipeline LLC, Tesoro Alaska Pipeline Company LLC, QEP Field Services LLC, QEP Midstream Partners Operating LLC, QEPM Gathering I LLC, Rendezvous Pipeline Company LLC, and Green River Processing 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

34 | Tesoro Logistics LP 2016

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 hereunto duly authorized.

		TESORO LOGISTICS LP
		By:	Tesoro Logistics GP, LLC
			Its general partner
Date:	May 5, 2016	By:	/s/ GREGORY J. GOFF
			Gregory J. Goff
			Chief Executive Officer
			(Principal Executive Officer)
Date:	May 5, 2016	By:	/s/ STEVEN M. STERIN
			Steven M. Sterin
			Vice President and Chief Financial Officer
			(Principal Financial Officer)

Tesoro Logistics LP 2016 |35

EX-10.1

AMENDMENT NO. 2 TO THE SECONDMENT AND LOGISTICS SERVICES AGREEMENT

THIS Amendment No. 2 To The Secondment And Logistics Services Agreement (this “Amendment”), dated as of March 31, 2016, is made and entered into by and among Tesoro Companies, Inc., a Delaware corporation (“TCI”), Tesoro Refining & Marketing Company LLC, a Delaware limited liability company (“TRMC”), Tesoro Alaska Company LLC, a Delaware limited liability company (“TAC”), Tesoro Great Plains Midstream LLC (“TGPM”), Tesoro Great Plains Gathering & Marketing LLC (“TGPGM”), BakkenLink Pipeline LLC (“BLP”), ND Land Holdings LLC (“NDLH”) and Tesoro Alaska Terminals LLC (“TAT” and, together with TCI, TAC and TRMC, the “Tesoro Group”), Tesoro Logistics GP, LLC, a Delaware limited liability company (the “General Partner”), Tesoro Logistics Operations LLC, a Delaware limited liability company (“TLO”), Tesoro Logistics Pipelines LLC, a Delaware limited liability company (“TLP”), Tesoro High Plains Pipeline Company LLC, a Delaware limited liability company (“THPPC”), Tesoro Logistics Northwest Pipeline LLC, a Delaware limited liability company (“TLNP”), and Tesoro Alaska Pipeline Company LLC, a Delaware limited liability company (“TAPC” and together with the General Partner, TLO, TLP, THPPC and TLNP, the “Logistics Group”), QEP Field Services, LLC, a Delaware limited liability company (“QEPFS”), QEP Midstream Partners GP, LLC, a Delaware limited liability company (“QEPM GP”), QEP Midstream Partners Operating, LLC, a Delaware limited liability company (“QEPM OpCo”), QEPM Gathering I, LLC, a Delaware limited liability company (“QEPM Gathering”), Rendezvous Pipeline Company, LLC, a Colorado limited liability company (“Rendezvous”) and Green River Processing, LLC, a Delaware limited liability company (“GRP” and together with QEPFS, QEPM GP, QEPM OpCo, QEPM Gathering and Rendezvous, the “QEP Group”). Each signatory hereto is referred to herein as a “Party” and collectively as the “Parties”.

RECITALS:

WHEREAS, on July 1, 2014, certain of the Parties entered into that certain Secondment and Logistics Services Agreement (the “Secondment Agreement”) pursuant to which the Tesoro Group agreed to provide to the Logistics Group certain services necessary to operate, manage, maintain and report the operating results of the Logistics Group’s assets, including gathering pipelines, transportation pipelines, storage tanks, trucks, truck racks, terminal facilities, offices and related equipment, real estate and other assets or portions thereof of the Logistics Group;

WHEREAS, by Amendment No.1, dated December 2, 2014, the Secondment Agreement was amended to add additional Parties;

WHEREAS, subsequent to Amendment No.1, TGPM, TGPGM, BLP, NDLH and TAT have become members of the Tesoro Group’ as defined in the preamble to the Secondment Agreement;

WHEREAS, the Parties desire to amend the Secondment Agreement to add these entities as parties to the Secondment Agreement and as member of the Tesoro Group.

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

1.AMENDMENTS

Each of TGPM, TGPGM, BLP, NDLH and TAT, respectively, is made a party for all purposes to the Secondment Agreement, and shall hereafter be a “Party” and a member of the “Tesoro Group” (each as defined in the Secondment Agreement.

2.MISCELLANEOUS

(a) Other than as set forth above, the Secondment Agreement shall remain in full force and effect as written.

(b) Except as otherwise provided herein, all costs and expenses (including legal and financial advisory fees and expenses) incurred in connection with, or in anticipation of, this Amendment and the transactions contemplated hereby shall be paid by the Party incurring such expenses.

(c) This Amendment and the legal relations between the Parties shall be governed by and construed in accordance with Section 13(d) of the Secondment Agreement.

(d) This Amendment constitutes the entire agreement between the Parties pertaining to the subject matter hereof, and supersedes all prior agreements, understandings, negotiations and discussions, whether oral or written, of the Parties pertaining to the subject matter hereof.

1

(e) This Amendment may be executed in counterparts, each of which shall be deemed an original instrument, but all such counterparts together shall constitute but one agreement. Either Party’s delivery of an executed counterpart signature page by facsimile (or electronic .pdf format transmission) is as effective as executing and delivering this Amendment in the presence of the other Party. No Party shall be bound until such time as all of the Parties have executed counterparts of this Amendment.

(f) This Amendment is solely for the benefit of the Parties and should not be deemed to confer upon third parties any remedy, claim, liability, reimbursement, cause of action or other right in excess of those existing without reference to this Amendment.

(g) The invalidity or unenforceability of any term or provision of this Amendment in any situation or jurisdiction shall not affect the validity or enforceability of the other terms or provisions hereof or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction and the remaining terms and provisions shall remain in full force and effect, unless doing so would result in an interpretation of this Amendment that is manifestly unjust.

[Signatures of the Parties follow on the next page.]

2

IN WITNESS WHEREOF, the Parties hereto have duly executed this Agreement as of the date first written above.

TESORO LOGISTICS GP, LLC TESORO LOGISTICS OPERATIONS LLC TESORO LOGISTICS PIPELINES LLC TESORO HIGH PLAINS PIPELINE COMPANY LLC TESORO LOGISTICS NORTHWEST PIPELINE LLC TESORO ALASKA PIPELINE COMPANY LLC QEP FIELD SERVICES, LLC QEP MIDSTREAM PARTNERS GP, LLC QEP MIDSTREAM PARTNERS OPERATING, LLC QEPM GATHERING I, LLC GREEN RIVER PROCESSING, LLC RENDEZVOUS PIPELINE COMPANY, LLC By____________________ Phillip M. Anderson President TESORO COMPANIES, INC. TESORO REFINING & MARKETING COMPANY LLC, TESORO ALASKA COMPANY LLC TESORO GREAT PLAINS MIDSTREAM LLC TESORO GREAT PLAINS GATHERING & MARKETING LLC BAKKENLINK PIPELINE LLC ND LAND HOLDINGS LLC TESORO ALASKA TERMINALS LLC By____________________  Gregory J. Goff Chairman of the Board of Managers and President

Signature Page to Amendment No. 2 to Secondment Agreement

3

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 Logistics LP;

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)) 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:	May 5, 2016	/s/ GREGORY J. GOFF
		Gregory J. Goff
		Chief Executive Officer of Tesoro Logistics GP, LLC
		(the general partner of Tesoro Logistics LP)

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 Logistics LP;

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)) 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:	May 5, 2016	/s/ STEVEN M. STERIN
		Steven M. Sterin
		Chief Financial Officer of Tesoro Logistics GP, LLC
		(the general partner of Tesoro Logistics LP)

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 Logistics LP (the “Partnership”) on Form 10-Q for the period ended March 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Gregory J. Goff, Chief Executive Officer of Tesoro Logistics GP, LLC, the general partner of the Partnership, 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 Partnership.

/s/ GREGORY J. GOFF

Gregory J. Goff

Chief Executive Officer of Tesoro Logistics GP, LLC

(the general partner of Tesoro Logistics LP)

May 5, 2016

A signed original of this written statement required by Section 906 has been provided to the Partnership and will be retained by the Partnership 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 Logistics LP (the “Partnership”) on Form 10-Q for the period ended March 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Steven M. Sterin, Chief Financial Officer of Tesoro Logistics GP, LLC, the general partner of the Partnership, 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 Partnership.

/s/ STEVEN M. STERIN

Steven M. Sterin

Chief Financial Officer of Tesoro Logistics GP, LLC

(the general partner of Tesoro Logistics LP)

May 5, 2016

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

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2016	Apr. 28, 2016
Entity Registrant Name	TESORO LOGISTICS LP
Entity Central Index Key	0001507615
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
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
Common
Entity Common Stock, Units Outstanding		93,633,156
General Partner
Entity Common Stock, Units Outstanding		1,900,515

XML

Condensed Statements of Combined Consolidated Operations (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Revenues
Affiliate	[1]	$ 169	$ 148
Third-party		131	115
Total Revenues		300	263
Costs and Expenses
Operating and maintenance expenses		112	98
Imbalance settlement gains and reimbursements		(7)	(8)
General and administrative expenses		24	25
Depreciation and amortization expenses		44	44
Net gain on asset disposals and impairments		1	0
Total Costs and Expenses		174	159
OPERATING INCOME (Loss)		126	104
Interest and financing costs, net		(44)	(37)
Equity in earnings of unconsolidated affiliates		4	3
Other Operating Income (Expense), Net		6	0
Net Earnings		92	70
Loss attributable to Predecessors		0	4
Net earnings attributable to noncontrolling interest		0	(10)
Net Earnings Attributable to Partners		92	64
General partner's interest in net earnings, including incentive distribution rights		(32)	(14)
Limited Partners’ Interest in Net Earnings		$ 60	$ 50
Net Earnings per Limited Partner Unit
Common - basic		$ 0.64	$ 0.63
Common - diluted		$ 0.64	$ 0.63
Weighted average limited partner units outstanding:
Common units - basic		93.6	80.3
Common units - diluted		93.6	80.3
Cash distributions paid per unit		$ 0.7800	$ 0.6675

[1] Tesoro accounted for 56% of our total revenues for both the three months ended March 31, 2016 and 2015.

XML

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and cash equivalents	$ 4	$ 16
Receivables, net
Trade	137	139
Affiliate	101	85
Prepayments and other	10	12
Total Current Assets	252	252
Net Property, Plant and Equipment	3,086	3,450
Acquired intangibles, net	970	976
Goodwill	112	130
Investment in Unconsolidated Affiliates	346	58
Other Noncurrent Assets	27	26
Total Assets	4,793	4,892
Accounts payable
Trade	60	83
Affiliate	53	48
Accrued interest and financing costs	68	31
Other current liabilities	48	59
Total Current Liabilities	229	221
Other Noncurrent Liabilities	47	49
Debt, Net of Unamortized Issuance Costs	2,821	2,844
Total Liabilities	$ 3,097	$ 3,114
Commitments and Contingencies (Note 7)
EQUITY
Common unitholders; 93,633,156 units issued and outstanding (93,478,326 in 2015)	$ 1,701	$ 1,707
General partner; 1,900,515 units issued and outstanding (1,900,515 in 2015)	(5)	(13)
Noncontrolling interest	0	84
Total Equity	1,696	1,778
Total Liabilities and Equity	$ 4,793	$ 4,892

XML

Condensed Consolidated Balance Sheets (Unaudited), (Parenthetical) - shares	Mar. 31, 2016	Dec. 31, 2015
EQUITY
Common units issued (units)	93,633,156	93,478,326
General partner units issued (units)	1,900,515	1,900,515

XML

Condensed Statements of Combined Consolidated Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flows from (used in) Operating Activities
Net earnings	$ 92	$ 70
Adjustments to reconcile net earnings to net cash from operating activities:
Depreciation and amortization expenses	44	44
Other non-cash operating activities	14	2
Changes in current assets and current liabilities	14	15
Changes in non-current assets and liabilities	(3)	17
Net cash from operating activities	161	148
Cash Flows from (used in) Investing Activities
Capital expenditures	(54)	(84)
Other investing	(4)	0
Net cash used in investing activities	(58)	(84)
Cash Flows from (used in) Financing Activities
Proceeds from issuance of units, net of issuance costs	5	24
Quarterly distributions to unitholders	(73)	(54)
Quarterly distributions to general partner	(25)	(16)
Distributions to noncontrolling interest	0	(9)
Borrowings under revolving credit agreement	297	99
Repayments under revolving credit agreement	(67)	(124)
Repayments of Long-term Debt	250	0
Payments of Financing Costs	(8)	0
Proceeds from Partnership Contribution	0	6
Capital contributions by affiliate	6	7
Net cash used in financing activities	(115)	(67)
Decrease in Cash and Cash Equivalents	(12)	(3)
Cash and Cash Equivalents, Beginning of Period	16	19
Cash and Cash Equivalents, End of Period	$ 4	$ 16

XML

Organization and Basis of Presentation (Notes)

3 Months Ended

Mar. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

ORGANIZATION AND BASIS OF PRESENTATION

ORGANIZATION

Tesoro Logistics LP (“TLLP” or the “Partnership”) is a fee-based, growth-oriented Delaware limited partnership formed in December 2010 by Tesoro Corporation and its wholly-owned subsidiary, Tesoro Logistics GP, LLC (“TLGP”), our general partner, to own, operate, develop and acquire logistics assets. Unless the context otherwise requires, references in this report to “we,” “us,” “our,” or “ours” refer to Tesoro Logistics LP, one or more of its consolidated subsidiaries, or all of them taken as a whole. Unless the context otherwise requires, references in this report to “Tesoro” or our “Sponsor” refer collectively to Tesoro Corporation and any of its subsidiaries, other than TLLP, its subsidiaries and its general partner.

PRINCIPLES OF COMBINATION AND CONSOLIDATION AND BASIS OF PRESENTATION

Acquired assets from Tesoro, and those assets, liabilities and results of operations are collectively referred to as the “Predecessor”. The accompanying condensed combined consolidated financial statements and related notes present the results of operations and cash flows of our Predecessor at historical cost. The financial statements of our Predecessor have been prepared from the separate records maintained by Tesoro and may not necessarily be indicative of the conditions that would have existed or the results of operations if our Predecessor had been operated as an unaffiliated entity. Our Predecessor did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment.

The interim condensed combined consolidated financial statements and notes thereto have been prepared by management without audit according to the rules and regulations of the Securities and Exchange Commission (“SEC”) and 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.

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 interim condensed combined consolidated financial statements and notes should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2015.

We prepare our condensed combined consolidated financial statements in conformity with U.S. GAAP, which requires management to make estimates and assumptions that affect the amounts of assets and liabilities and revenues and expenses reported as of and during the periods presented. We review our estimates on an ongoing basis using currently available information. Changes in facts and circumstances may result in revised estimates, and actual results could differ from those estimates. The results of operations of the Partnership, or our Predecessor, for any interim period are not necessarily indicative of results for the full year.

CONDENSED CONSOLIDATING FINANCIAL INFORMATION. The parent company of the Partnership has no independent assets or operations. The Partnership’s operations are conducted by its wholly-owned guarantor subsidiaries, other than Tesoro Logistics Finance Corp., an indirect wholly-owned subsidiary of the Partnership whose sole purpose is to act as co-issuer of any debt securities. The guarantees are full and unconditional and joint and several, subject to certain automatic customary releases, including sale, disposition, or transfer of the capital stock or substantially all of the assets of a subsidiary guarantor, exercise of legal defeasance option or covenant defeasance option, and designation of a subsidiary guarantor as unrestricted in accordance with the applicable indenture. There are no significant restrictions on the ability of the Partnership or any guarantor to obtain funds from its subsidiaries by dividend or loan. None of the assets of the Partnership or a guarantor represent restricted net assets pursuant to Rule 4-08(e)(3) of Regulation S-X under the Securities Act.

As of March 31, 2016, due to the deconsolidation of Rendezvous Gas Services, L.L.C. (“RGS”), we are not required to provide condensed consolidating financial information pursuant to Rule 3-10 of Regulation S-X as we no longer have a consolidated non-guarantor subsidiary. For further discussion on the deconsolidation of RGS, see discussion below and in Note 4.

FAIR VALUE INFORMATION

We believe the carrying value of our cash and cash equivalents, receivables, accounts payable and certain accrued liabilities approximates fair value. Our fair value assessment incorporates a variety of considerations, including:

• the short term duration of the instruments (approximately one percent of our trade payables and receivables have been outstanding for greater than 90 days); and

• the expected future insignificance of bad debt expense, which includes an evaluation of counterparty credit risk.

The computation of the percentage of the short-term duration of our trade receivables excludes amounts that are greater than 90 days related to legal disputes, primarily XTO Energy Inc.’s (“XTO”) legal dispute with QEP Field Services, LLP (“QEPFS”). See further discussion regarding the XTO litigation in Note 6.

The fair value of our senior notes is based on prices from recent trade activity and is categorized in level 2 of the fair value hierarchy. The borrowings under our amended revolving credit facility (the “Revolving Credit Facility”) and our secured dropdown credit facility (“Dropdown Credit Facility”), which include a variable interest rate, approximate fair value. The carrying value and fair value of our debt were both approximately $2.9 billion as of March 31, 2016. The carrying value and fair value of our debt were approximately $2.9 billion and $2.8 billion at December 31, 2015, respectively. These carrying and fair values of our debt do not include any unamortized issuance costs associated with our total debt.

NEW ACCOUNTING STANDARDS AND DISCLOSURES

REVENUE RECOGNITION. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 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. We are currently evaluating the impact of the standard on our financial statements and related disclosures. Based on our initial evaluation, we believe that the standard could impact the amount and timing of revenues we recognize as certain of our revenue arrangements require us to provide multiple services and may include variable consideration.

CONSOLIDATION. In February 2015, the FASB issued ASU 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. We adopted this guidance using the modified retrospective approach as of January 1, 2016 and performed the required reassessments outlined by the guidance. For further information on the results of our reassessments, refer to Note 4, Investments - Equity Method and Joint Ventures.

BUSINESS COMBINATIONS.In September 2015, the FASB issued ASU 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments” (“ASU 2015-16”). The standard requires an acquirer to recognize the cumulative impact of adjustments to provisional purchase price amounts that are identified during the measurement period in the reporting period, in which the adjustment amounts are determined. The standard also requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is effective for interim and annual periods beginning after December 15, 2015, and must be applied prospectively to adjustments that occur after the effective date. We adopted this guidance as of January 1, 2016, with no impact to our financial statements.

LEASES.In February 2016, the FASB issued ASU 2016-02, “Leases” (“ASU 2016-02”), which improves transparency and comparability among organizations by requiring lessees to recognize a lease liability and a corresponding lease asset for virtually all lease contracts. It also requires additional disclosures about leasing arrangements. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018, and requires 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.

SHARE-BASED COMPENSATION. In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for employee share-based payment transactions including accounting for income taxes, cash flow presentation of tax impacts, forfeitures, and liability versus equity accounting due to statutory tax withholding requirements. ASU 2016-09 is effective for interim and annual periods beginning after December 15, 2016, with early adoption permitted. As of January 1, 2016, we early adopted ASU 2016-09 and with respect to the guidance on forfeitures, we have elected to continue to estimate forfeitures on the date of grant to account for the estimated number of awards for which the requisite service period will not be rendered. The adoption of ASU 2016-09 had no impact on our financial statements.

PRINCIPAL VS AGENT CONSIDERATIONS.In March 2016, the FASB issued ASU 2016-08, “Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which amends the principal versus agent guidance in ASU 2014-09. The amendments clarify how an entity should apply the control principle to certain types of arrangements, such as service transactions, by explaining what a principal controls before the specified good or service is transferred to the customer. The effective date and transition requirements for the amendments in ASU 2016-08 are the same as the effective date and transition requirements of ASU 2014-09. At this time, we are evaluating the potential impact of this standard on our financial statements.

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Related-Party Transactions (Notes)

3 Months Ended

Mar. 31, 2016

Related Party Transactions [Abstract]

Related-Party Transactions

RELATED-PARTY TRANSACTIONS

AFFILIATE AGREEMENTS

The Partnership has various long-term, fee-based commercial agreements with Tesoro, under which we provide pipeline transportation, trucking, terminal distribution and storage services to Tesoro, and Tesoro typically commits to fixed fees or to provide us with minimum monthly throughput volumes of crude oil and refined products. For the natural gas liquids (”NGLs”) that we handle under “keep-whole” agreements, the Partnership has a fee-based processing agreement with Tesoro which minimizes the impact of commodity price movements during the annual period subsequent to renegotiation of terms and pricing each year.

In addition, we have agreements for the provision of various general and administrative services by Tesoro. Under our partnership agreement, we are required to reimburse TLGP and its affiliates for all costs and expenses that they incur on our behalf for managing and controlling our business and operations. Except to the extent specified under our amended omnibus agreement (the “Amended Omnibus Agreement”) or our secondment agreement (the “Secondment Agreement”), TLGP determines the amount of these expenses. Under the terms of the Amended Omnibus Agreement, we are required to pay Tesoro an annual corporate services fee, currently $9 million, for the provision of various centralized corporate services, including executive management, legal, accounting, treasury, human resources, health, safety and environmental, information technology, certain insurance coverage, administration and other corporate services. Under the terms of our Secondment Agreement, we pay Tesoro a net annual service fee, currently $2 million, for services performed by field-level employees at the majority of our facilities. Additionally, we reimburse Tesoro for any direct costs actually incurred by Tesoro in providing other operational services with respect to certain of our other assets and operations. Tesoro may also provide us other services for which we will be charged fees as determined by TLGP.

SUMMARY OF AFFILIATE TRANSACTIONS

SUMMARY OF REVENUE AND EXPENSE TRANSACTIONS WITH TESORO (in millions)

	Three Months Ended March 31,
	2016		2015
Revenues (a)	$	169	$	148
Operating and maintenance expenses	37		29
Imbalance settlement gains and reimbursements from Tesoro (b)	7		8
General and administrative expenses	17		17

(a) Tesoro accounted for 56% of our total revenues for both the three months ended March 31, 2016 and 2015.

(b) Includes imbalance settlement gains of $1 million and $2 million for the three months ended March 31, 2016 and 2015, respectively. Also includes reimbursements from Tesoro pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement of $6 million for both the three months ended March 31, 2016 and 2015.

PREDECESSOR TRANSACTIONS. Related-party transactions of our Predecessor were settled through equity. Our Predecessor did not record revenue for transactions with Tesoro in the Terminalling and Transportation segment.

DISTRIBUTIONS. In accordance with our partnership agreement, the unitholders of our common and general partner interests are entitled to receive quarterly distributions of available cash. During the three months ended March 31, 2016, we paid quarterly cash distributions of $50 million to Tesoro and TLGP, including incentive distribution rights (“IDRs”). On April 20, 2016, we declared a quarterly cash distribution of $0.81 per unit, which will be paid on May 13, 2016. The distribution will include payments of $59 million to Tesoro and TLGP, including IDRs.

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Property, Plant and Equipment (Notes)

3 Months Ended

Mar. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT BY SEGMENT, AT COST (in millions)

	March 31, 2016			December 31, 2015
Gathering	$	1,348		$	1,700
Processing	563			565
Terminalling and Transportation	1,591			1,582
Gross Property, Plant and Equipment	3,502			3,847
Accumulated depreciation	(416		)	(397		)
Net Property, Plant and Equipment	$	3,086		$	3,450

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Investments - Equity Method Investments - Equity Method (Notes)

3 Months Ended

Mar. 31, 2016

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments and Joint Ventures Disclosure

INVESTMENTS - EQUITY METHOD AND JOINT VENTURES

For each of the following investments, we have the ability to exercise significant influence over each of these investments through our participation in the management committees, which make all significant decisions. However, since we have equal or proportionate influence over each committee as a joint interest partner and all significant decisions require consent of the other investor(s) without regard to our economic interest, we have determined that these entities should not be consolidated and apply the equity method of accounting with respect to our investments in each entity.

• RGS - We have a 78% interest in RGS, which owns and operates the infrastructure that transports gas from certain fields to several re-delivery points in southwestern Wyoming, including natural gas processing facilities that are owned by us or a third party. Prior to 2016, we consolidated RGS, however, upon our reassessment performed in conjunction with the adoption of ASU 2015-02 as of January 1, 2016, we determined RGS represents a variable interest entity to us for which we are not the primary beneficiary. Under the limited liability company agreement, we do not have voting rights commensurate with our economic interest due to veto rights available to our partner in RGS. Certain business decisions, including, but not limited to, decisions with respect to significant expenditures or contractual commitments, annual budgets, material financings, dispositions of assets or amending the members’ gas servicing agreements, require unanimous approval of the members. For amounts previously consolidated in our financial statements as of and for the year ended December 31, 2015, refer to the amounts shown in the Non-Guarantor column in the condensed consolidating financial information presented in Note 16 in our annual report on Form 10-K referenced herein.

• Three Rivers Gathering, L.L.C. (“TRG”) - We own a 50% interest in TRG which operates natural gas gathering assets within the southeastern Uinta Basin and is primarily supported by long-term, fee-based gas gathering agreements with minimum volume commitments.

• Uintah Basin Field Services, L.L.C. (“UBFS”) - We own a 38% interest in UBFS which owns and operates the natural gas gathering infrastructure located in the southeastern Uinta Basin and is supported by long-term, fee-based gas gathering agreements that contain firm throughput commitments, which generate fees whether or not the capacity is used, and is operated by us.

EQUITY METHOD INVESTMENTS (in millions)

	RGS			TRG			UBFS			Total
Balance at December 31, 2015	$	—		$	42		$	16		$	58
Effect of deconsolidation (a)	295			—			—			295
Equity in earnings	2			1			1			4
Distributions received	(9		)	(1		)	(1		)	(11		)
Balance at March 31, 2016	$	288		$	42		$	16		$	346

(a) The reassessment of our investments we performed resulted in the deconsolidation of RGS and the reporting of RGS as an equity method investment. We recognized an increase of $295 million to equity method investments as of January 1, 2016 as a result of the deconsolidation in addition to a cumulative effect reduction to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods. The carrying amount of our investment in RGS exceeded the underlying equity in net assets by $139 million at March 31, 2016.

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Debt (Notes)

3 Months Ended

Mar. 31, 2016

Long-term Debt, Unclassified [Abstract]

Debt

DEBT

DEBT BALANCE, NET OF UNAMORTIZED ISSUANCE COSTS (in millions)

	March 31, 2016			December 31, 2015
Total debt	$	2,863		$	2,883
Unamortized issuance costs (a)	(42		)	(39		)
Debt, net of current maturities and unamortized issuance costs	$	2,821		$	2,844

(a) Includes unamortized premium associated with our 5.875% Senior Notes due 2020 of $4 million at both March 31, 2016 and December 31, 2015.

REVOLVING CREDIT FACILITY AND DROPDOWN CREDIT FACILITY

We amended our existing secured Revolving Credit Facility on January 29, 2016, decreasing the aggregate available facility limit from $900 million to $600 million and improving terms related to pricing and financial covenants. As a result of this amendment, an immaterial amount of unamortized debt issuance costs were expensed. In addition, we syndicated a $1.0 billion secured Dropdown Credit Facility on January 29, 2016. The primary use of proceeds under this facility will be to fund asset acquisitions. The terms, covenants and restrictions under this facility are substantially the same as with our amended secured Revolving Credit Facility. The total aggregate available facility limits for the secured Revolving Credit Facility and secured Dropdown Credit Facility totaled $1.6 billion at March 31, 2016. We are allowed to request the loan availability for both the secured Revolving Credit Facility and the secured Dropdown Credit Facility be increased up to an aggregate of $2.1 billion, subject to receiving increased commitments from the lenders.

As of March 31, 2016, our secured Revolving Credit Facility provided for total loan availability of $600 million. Borrowings are available under the secured Revolving Credit Facility up to the total loan availability of the facility. Our secured Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of our consolidated subsidiaries, and secured by substantially all of our assets. We had $285 million of borrowings outstanding under the secured Revolving Credit Facility, resulting in a total unused loan availability of $315 million or 53% of the borrowing capacity as of March 31, 2016. The weighted average interest rate for borrowings under our secured Revolving Credit Facility was 2.76% at March 31, 2016.

As of March 31, 2016, our secured Dropdown Credit Facility provided for total loan availability of $1.0 billion. We had $250 million of borrowings outstanding under the secured Dropdown Credit Facility, resulting in a total unused loan availability of $750 million or 75% of the borrowing capacity as of March 31, 2016. The weighted average interest rate for borrowings under our secured Dropdown Credit Facility was 2.70% at March 31, 2016.

The secured Revolving Credit Facility and the secured Dropdown Credit Facility ratably share collateral comprised primarily of our property, plant, and equipment and both facilities mature on January 29, 2021. In addition, upon an upgrade of our corporate family rating to investment grade, certain covenants and restrictions under each facility will automatically be eliminated or improved.

DEBT REPAYMENTS

On February 3, 2016, we paid the full amount of the Unsecured Term Loan Facility, including accrued interest, with proceeds drawn from the secured Dropdown Credit Facility. All commitments under the Unsecured Term Loan Facility were terminated effective with the repayment and an immaterial amount of unamortized debt issuance costs were expensed.

EXCHANGE OFFER

On February 26, 2016, the Partnership commenced an offer to exchange (the “Exchange”) its existing unregistered 5.50% Senior Notes due 2019 (“2019 Notes”) and 6.25% Senior Notes due 2022 (“2022 Notes”) (together, “Unregistered Notes”) for an equal principal amount of 5.50% Senior Notes due 2019 and 6.25% Senior Notes due 2022 (the “Exchange Notes”), respectively, that were registered under the Securities Act of 1933, as amended. On April 14, 2016, the Exchange was completed for all of the 2019 Notes and substantially all of the 2022 Notes. The terms of the Exchange Notes are identical in all material respects (including principal amount, interest rate, maturity and redemption rights) to the Unregistered Notes for which they were exchanged, except that the Exchange Notes generally are not subject to transfer restrictions. The Exchange fulfills all of the requirements of the registration rights agreements for the Unregistered Notes.

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Commitments and Contingencies (Notes)

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

TESORO INDEMNIFICATION

Under the Amended Omnibus Agreement, Tesoro indemnifies us for certain matters, including known environmental, title and tax matters associated with the ownership of our assets at or before the closing of the TLLP initial public offering (“Initial Offering”) and subsequent acquisitions from Tesoro, excluding certain Los Angeles assets acquired from Tesoro in 2013. Under the Carson Assets Indemnity Agreement, Tesoro retained responsibility for remediation of known environmental liabilities due to the use or operation of certain Los Angeles assets prior to the acquisition dates, and has indemnified the Partnership for any losses incurred by the Partnership arising out of those remediation obligations. Environmental matters discovered subsequent to the Initial Offering and subsequent acquisitions are also indemnified to the extent they are identified prior to five years from the acquisition date. The indemnification under the Initial Offering for unknown environmental matters expired on April 26, 2016. See Note 3 of our Annual Report on Form 10-K for the year ended December 31, 2015, for additional information regarding the terms and conditions of the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement.

CONTINGENCIES

In the ordinary course of business, we may become party to lawsuits, administrative proceedings and governmental investigations, including environmental, regulatory and other matters. The outcome of contingencies cannot always be predicted accurately, but we will accrue liabilities for these matters if the amount is probable and can be reasonably estimated. Contingencies arising after the closing of the Initial Offering from conditions existing before the Initial Offering, and the subsequent acquisitions from Tesoro that have been identified after the closing of each transaction, will be recorded in accordance with the indemnification terms set forth in the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement, as noted above. Any contingencies arising from events after the Initial Offering, and the subsequent acquisitions from Tesoro, will be our responsibility. Other than described in this Note 6, we do not have any other material outstanding lawsuits, administrative proceedings or governmental investigations.

ENVIRONMENTAL LIABILITIES

We are subject to federal, state and local laws and regulations governing environmental quality and pollution control. These laws and regulations require us to remove or remedy the effect of the disposal or release of specified substances at current and former operating sites. We have accrued liabilities for these expenses and believe these accruals are adequate based on current information and projections that can be reasonably estimated. Our environmental liabilities are estimates using internal and third-party assessments and available information to date. It is possible that these estimates will change as more information becomes available. Our liabilities for these environmental expenditures totaled $29 million and $33 million at March 31, 2016 and December 31, 2015, respectively.

TIOGA, NORTH DAKOTA CRUDE OIL PIPELINE RELEASE.In September 2013, the Partnership responded to the release of crude oil in a rural field northeast of Tioga, North Dakota (the “Crude Oil Pipeline Release”). The environmental liabilities related to the Crude Oil Pipeline Release include amounts estimated for remediation activities that will be conducted to restore the site for agricultural use. We have liabilities totaling $23 million and $27 million at March 31, 2016 and December 31, 2015, respectively. This incident was covered by our pollution legal liability insurance policy, subject to a $1 million deductible and a $25 million loss limit. Pursuant to this policy, we have received all insurance recoveries related to the Crude Oil Pipeline Release as of December 31, 2015. The estimated remediation costs of $66 million exceeded our policy loss limit by $41 million as of December 31, 2015.

LEGAL

QUESTAR GAS COMPANY V. QEP FIELD SERVICES COMPANY. Prior to the acquisition of all of the limited liability company interests of QEPFS, QEPFS’ former affiliate, Questar Gas Company (“QGC”) and its affiliate Wexpro, filed a complaint on May 1, 2012, asserting claims for breach of contract, breach of implied covenant of good faith and fair dealing, and an accounting and declaratory judgment related to a 1993 gathering agreement (the “1993 Agreement”) executed when the parties were affiliates. TLLP agreed to indemnify QEP Field Services Company for this claim under the acquisition agreement for QEPFS. Under the 1993 Agreement, certain of TLLP’s systems provide gathering services to QGC charging an annual gathering rate, which is based on the cost of service calculation. QGC disputed the annual calculation of the gathering rate, which has been calculated in the same manner since 1998, without objection by QGC. As a result of the rulings through the date of our acquisition of QEPFS, TLLP assumed a $21 million liability for estimated damages. On March 22, 2016, the parties in this dispute entered into a settlement and release agreement resolving all remaining issues and associated counter claims in exchange for TLLP’s payment of $15 million. We recognized a gain of $6 million in other income, net on our condensed statement of consolidated operations for the three months ended March 31, 2016 as a result of the settlement.

XTO ENERGY INC. V. QEP FIELD SERVICES COMPANY.XTO filed a complaint on January 30, 2014, asserting claims for breach of contract, breach of implied covenant of good faith and fair dealing, unjust enrichment and an accounting and declaratory judgment related to a 2010 gas processing agreement (the “XTO Agreement”). TLLP processes XTO’s natural gas on a firm basis under the XTO Agreement. The XTO Agreement requires TLLP to transport, fractionate and market XTO’s natural gas liquids derived from XTO’s processed gas. XTO is seeking monetary damages related to TLLP’s allocation of charges related to XTO’s share of natural gas liquid transportation, fractionation and marketing costs associated with shortfalls in contractual firm processing volumes. On March 29, 2016, the parties entered into a settlement and release agreement related to payments withheld by XTO unrelated to the allocation of charges they are challenging. Under the settlement and release agreement, XTO agreed to pay all historical undisputed charges by April 15, 2016 less the $22 million of allocated charges they are challenging, and to thereafter tender all similar undisputed charges timely. On April 15, 2016, XTO remitted a $21 million settlement payment related to all undisputed amounts. While we cannot currently estimate the final 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.

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Equity (Notes)

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Equity

EQUITY AND NET EARNINGS PER UNIT

We had 61,188,041 common public units outstanding as of March 31, 2016. Additionally, Tesoro owned 32,445,115 of our common units and 1,900,515 of our general partner units (the 2% general partner interest) as of March 31, 2016, which together constitutes a 36% ownership interest in us.

ATM PROGRAM.On August 24, 2015, we filed a prospectus supplement to our shelf registration statement filed with the SEC on August 6, 2015, authorizing the continuous issuance of up to an aggregate of $750 million of common units, in amounts, at prices and on terms to be determined by market conditions and other factors at the time of our offerings (such continuous offering program, or at-the-market program, referred to as our “ATM Program”). During the three months ended March 31, 2016, we issued an aggregate of 103,748 common units under our ATM Program, generating proceeds of approximately $5 million, before issuance costs. The net proceeds from sales under the ATM Program will be used for general partnership purposes, which may include debt repayment, future acquisitions, capital expenditures and additions to working capital.

CHANGE IN THE CARRYING AMOUNT OF OUR EQUITY (in millions)

	Partnership
	Common			General Partner			Noncontrolling Interest			Total
Balance at December 31, 2015	$	1,707		$	(13	)	$	84		$	1,778
Equity offering under ATM Program, net of issuance costs	5			—			—			5
Effect of deconsolidation of RGS (a)	(2		)	—			(84		)	(86		)
Distributions (b)	(73		)	(25		)	—			(98		)
Net earnings	60			32			—			92
Contributions (c)	3			1			—			4
Other	1			—			—			1
Balance at March 31, 2016	$	1,701		$	(5	)	$	—		$	1,696

(a) As the result of the reassessment performed, we deconsolidated RGS causing the derecognition of noncontrolling interest and an opening equity impact totaling $86 million. The cumulative effect to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods.

(b) Represents cash distributions declared and paid during the three months ended March 31, 2016 relating to the fourth quarter of 2015.

(c) Includes Tesoro and TLGP contributions to the Partnership primarily related to reimbursements for capital spending pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement.

NET EARNINGS PER UNIT.We use the two-class method when calculating the net earnings per unit applicable to limited partners, because we have more than one participating security. At March 31, 2016, our participating securities consist of common units, general partner units and IDRs. Net earnings earned by the Partnership are allocated between the common and general partners in accordance with our partnership agreement. We base our calculation of net earnings per unit on the weighted average number of common limited partner units outstanding during the period.

Diluted net earnings per unit include the effects of potentially dilutive units on our common units, which consist of unvested service and performance phantom units. Distributions less than or greater than earnings are allocated in accordance with our partnership agreement.

NET EARNINGS PER UNIT (in millions, except per unit amounts)

	Three Months Ended March 31,
	2016			2015
Net earnings	$	92		$	70
Net earnings attributable to noncontrolling interest	—			(10		)
Net earnings, excluding noncontrolling interest	92			60
General partner’s distributions	(2		)	(2		)
General partner’s IDRs (a)	(30		)	(12		)
Limited partners’ distributions on common units	(76		)	(56		)
Distributions greater than earnings	$	(16	)	$	(10	)
General partner’s earnings:
Distributions	$	2		$	2
General partner’s IDRs (a)	30			12
Total general partner’s earnings	$	32		$	14
Limited partners’ earnings on common units:
Distributions	$	76		$	56
Allocation of distributions greater than earnings	(16		)	(10		)
Total limited partners’ earnings on common units	$	60		$	46
Weighted average limited partner units outstanding
Common units - basic	93.6			80.3
Common units - diluted	93.6			80.3
Net earnings per limited partner unit:
Common - basic	$	0.64		$	0.63
Common - diluted	$	0.64		$	0.63

(a) IDRs entitle the general partner to receive increasing percentages, up to 50%, of quarterly distributions in excess of $0.3881 per unit per quarter. The amount above reflects earnings distributed to our general partner net of $3 million of IDRs for the three months ended March 31, 2015 waived by TLGP. See Note 12 of our Annual Report on Form 10-K for the year ended December 31, 2015, for further discussion related to IDRs.

CASH DISTRIBUTIONS

Our partnership agreement, as amended, sets forth the calculation to be used to determine the amount and priority of cash distributions that the limited partner unitholders and general partner will receive. The table below summarizes the quarterly distributions related to our quarterly financial results:

QUARTERLY DISTRIBUTIONS

Quarter Ended	Quarterly Distribution Per Unit		Total Cash Distribution including general partner IDRs (in millions)		Date of Distribution	Unitholders Record Date
December 31, 2015	$	0.78	$	98	February 12, 2016	February 2, 2016
March 31, 2016 (a)	0.81		108		May 13, 2016	May 2, 2016

(a) This distribution was declared on April 20, 2016 and will be paid on the date of distribution.

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Segment Disclosures (Notes)

3 Months Ended

Mar. 31, 2016

Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]

Segment Disclosures

OPERATING SEGMENTS

Our revenues are derived from three operating segments: Gathering, Processing and Terminalling and Transportation. Our Gathering segment consists of crude oil and natural gas gathering systems in the Bakken Shale/Williston Basin area of North Dakota and Montana and the Green River Basin, Uinta Basin and Vermillion Basin in the states of Utah, Colorado and Wyoming. Our Processing segment consists of four gas processing complexes, including Green River Processing, LLC, which owns one fractionation facility and two gas processing complexes. Our Terminalling and Transportation segment consists of crude oil and refined products terminals and marine terminals, storage facilities for crude oil, refined products and petroleum coke handling, rail-car unloading facilities and pipelines, which transport products and crude oil.

Our revenues are generated from third-party contracts and from commercial agreements we have entered into with Tesoro, under which Tesoro pays us fees for gathering crude oil and natural gas, processing natural gas and distributing, transporting and storing crude oil, refined products, natural gas and natural gas liquids. The commercial agreements with Tesoro are described in greater detail in Note 3 to our Annual Report on Form 10-K for the year ended December 31, 2015. We do not have any foreign operations.

Our operating segments are strategic business units that offer different services in various geographical locations. We evaluate the performance of each segment based on its respective operating income. Certain general and administrative expenses are excluded from segment operating income as they are not directly attributable to a specific operating segment. Identifiable assets are those used by the segment, whereas other assets are principally cash and other assets that are not associated with a specific operating segment.

SEGMENT INFORMATION RELATED TO CONTINUING OPERATIONS (in millions)

	Three Months Ended March 31,
	2016			2015
Revenues
Gathering:
Affiliate	$	22		$	26
Third-party	69			51
Total Gathering	91			77
Processing
Affiliate	26			20
Third-party	45			47
Total Processing	71			67
Terminalling and Transportation:
Affiliate	121			102
Third-party	17			17
Total Terminalling and Transportation	138			119
Total Segment Revenues	$	300		$	263
Segment Operating Income
Gathering	$	40		$	34
Processing	29			24
Terminalling and Transportation	69			58
Total Segment Operating Income	138			116
Unallocated general and administrative expenses	(12		)	(12		)
Interest and financing costs, net	(44		)	(37		)
Equity in earnings of unconsolidated affiliates	4			3
Other income, net	6			—
Net Earnings	$	92		$	70
Capital Expenditures
Gathering	$	25		$	51
Processing	5			1
Terminalling and Transportation	11			15
Total Capital Expenditures	$	41		$	67

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Organization and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2016

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of accounting, policy

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

New accounting pronouncement, policy

NEW ACCOUNTING STANDARDS AND DISCLOSURES

REVENUE RECOGNITION. In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 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. We are currently evaluating the impact of the standard on our financial statements and related disclosures. Based on our initial evaluation, we believe that the standard could impact the amount and timing of revenues we recognize as certain of our revenue arrangements require us to provide multiple services and may include variable consideration.

CONSOLIDATION. In February 2015, the FASB issued ASU 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. We adopted this guidance using the modified retrospective approach as of January 1, 2016 and performed the required reassessments outlined by the guidance. For further information on the results of our reassessments, refer to Note 4, Investments - Equity Method and Joint Ventures.

BUSINESS COMBINATIONS.In September 2015, the FASB issued ASU 2015-16, “Simplifying the Accounting for Measurement-Period Adjustments” (“ASU 2015-16”). The standard requires an acquirer to recognize the cumulative impact of adjustments to provisional purchase price amounts that are identified during the measurement period in the reporting period, in which the adjustment amounts are determined. The standard also requires an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is effective for interim and annual periods beginning after December 15, 2015, and must be applied prospectively to adjustments that occur after the effective date. We adopted this guidance as of January 1, 2016, with no impact to our financial statements.

LEASES.In February 2016, the FASB issued ASU 2016-02, “Leases” (“ASU 2016-02”), which improves transparency and comparability among organizations by requiring lessees to recognize a lease liability and a corresponding lease asset for virtually all lease contracts. It also requires additional disclosures about leasing arrangements. ASU 2016-02 is effective for interim and annual periods beginning after December 15, 2018, and requires 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.

SHARE-BASED COMPENSATION. In March 2016, the FASB issued ASU 2016-09, “Improvements to Employee Share-Based Payment Accounting” (“ASU 2016-09”), which simplifies several aspects of the accounting for employee share-based payment transactions including accounting for income taxes, cash flow presentation of tax impacts, forfeitures, and liability versus equity accounting due to statutory tax withholding requirements. ASU 2016-09 is effective for interim and annual periods beginning after December 15, 2016, with early adoption permitted. As of January 1, 2016, we early adopted ASU 2016-09 and with respect to the guidance on forfeitures, we have elected to continue to estimate forfeitures on the date of grant to account for the estimated number of awards for which the requisite service period will not be rendered. The adoption of ASU 2016-09 had no impact on our financial statements.

PRINCIPAL VS AGENT CONSIDERATIONS.In March 2016, the FASB issued ASU 2016-08, “Principal versus Agent Considerations (Reporting Revenue Gross versus Net)” (“ASU 2016-08”), which amends the principal versus agent guidance in ASU 2014-09. The amendments clarify how an entity should apply the control principle to certain types of arrangements, such as service transactions, by explaining what a principal controls before the specified good or service is transferred to the customer. The effective date and transition requirements for the amendments in ASU 2016-08 are the same as the effective date and transition requirements of ASU 2014-09. At this time, we are evaluating the potential impact of this standard on our financial statements.

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Related-Party Transactions (Tables)

3 Months Ended

Mar. 31, 2016

Related Party Transactions [Abstract]

Schedule of related party transactions

SUMMARY OF REVENUE AND EXPENSE TRANSACTIONS WITH TESORO (in millions)

	Three Months Ended March 31,
	2016		2015
Revenues (a)	$	169	$	148
Operating and maintenance expenses	37		29
Imbalance settlement gains and reimbursements from Tesoro (b)	7		8
General and administrative expenses	17		17

(a) Tesoro accounted for 56% of our total revenues for both the three months ended March 31, 2016 and 2015.

(b) Includes imbalance settlement gains of $1 million and $2 million for the three months ended March 31, 2016 and 2015, respectively. Also includes reimbursements from Tesoro pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement of $6 million for both the three months ended March 31, 2016 and 2015.

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Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2016

Property, Plant and Equipment [Abstract]

Property, plant and equipment

PROPERTY, PLANT AND EQUIPMENT BY SEGMENT, AT COST (in millions)

	March 31, 2016			December 31, 2015
Gathering	$	1,348		$	1,700
Processing	563			565
Terminalling and Transportation	1,591			1,582
Gross Property, Plant and Equipment	3,502			3,847
Accumulated depreciation	(416		)	(397		)
Net Property, Plant and Equipment	$	3,086		$	3,450

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Investments - Equity Method Investments - Equity Method (Tables)

3 Months Ended

Mar. 31, 2016

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments

EQUITY METHOD INVESTMENTS (in millions)

	RGS			TRG			UBFS			Total
Balance at December 31, 2015	$	—		$	42		$	16		$	58
Effect of deconsolidation (a)	295			—			—			295
Equity in earnings	2			1			1			4
Distributions received	(9		)	(1		)	(1		)	(11		)
Balance at March 31, 2016	$	288		$	42		$	16		$	346

(a) The reassessment of our investments we performed resulted in the deconsolidation of RGS and the reporting of RGS as an equity method investment. We recognized an increase of $295 million to equity method investments as of January 1, 2016 as a result of the deconsolidation in addition to a cumulative effect reduction to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods. The carrying amount of our investment in RGS exceeded the underlying equity in net assets by $139 million at March 31, 2016.

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Debt (Tables)

3 Months Ended

Mar. 31, 2016

Long-term Debt, Unclassified [Abstract]

Schedule of debt

DEBT BALANCE, NET OF UNAMORTIZED ISSUANCE COSTS (in millions)

	March 31, 2016			December 31, 2015
Total debt	$	2,863		$	2,883
Unamortized issuance costs (a)	(42		)	(39		)
Debt, net of current maturities and unamortized issuance costs	$	2,821		$	2,844

(a) Includes unamortized premium associated with our 5.875% Senior Notes due 2020 of $4 million at both March 31, 2016 and December 31, 2015.

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Equity (Tables)

3 Months Ended

Mar. 31, 2016

Equity [Abstract]

Schedule of partners' capital

CHANGE IN THE CARRYING AMOUNT OF OUR EQUITY (in millions)

	Partnership
	Common			General Partner			Noncontrolling Interest			Total
Balance at December 31, 2015	$	1,707		$	(13	)	$	84		$	1,778
Equity offering under ATM Program, net of issuance costs	5			—			—			5
Effect of deconsolidation of RGS (a)	(2		)	—			(84		)	(86		)
Distributions (b)	(73		)	(25		)	—			(98		)
Net earnings	60			32			—			92
Contributions (c)	3			1			—			4
Other	1			—			—			1
Balance at March 31, 2016	$	1,701		$	(5	)	$	—		$	1,696

(a) As the result of the reassessment performed, we deconsolidated RGS causing the derecognition of noncontrolling interest and an opening equity impact totaling $86 million. The cumulative effect to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods.

(b) Represents cash distributions declared and paid during the three months ended March 31, 2016 relating to the fourth quarter of 2015.

(c) Includes Tesoro and TLGP contributions to the Partnership primarily related to reimbursements for capital spending pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement.

Schedule of quarterly distributions

QUARTERLY DISTRIBUTIONS

Quarter Ended	Quarterly Distribution Per Unit		Total Cash Distribution including general partner IDRs (in millions)		Date of Distribution	Unitholders Record Date
December 31, 2015	$	0.78	$	98	February 12, 2016	February 2, 2016
March 31, 2016 (a)	0.81		108		May 13, 2016	May 2, 2016

(a) This distribution was declared on April 20, 2016 and will be paid on the date of distribution.

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Segment Disclosures (Tables)

3 Months Ended

Mar. 31, 2016

Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]

Schedule of segment reporting information, by segment

SEGMENT INFORMATION RELATED TO CONTINUING OPERATIONS (in millions)

	Three Months Ended March 31,
	2016			2015
Revenues
Gathering:
Affiliate	$	22		$	26
Third-party	69			51
Total Gathering	91			77
Processing
Affiliate	26			20
Third-party	45			47
Total Processing	71			67
Terminalling and Transportation:
Affiliate	121			102
Third-party	17			17
Total Terminalling and Transportation	138			119
Total Segment Revenues	$	300		$	263
Segment Operating Income
Gathering	$	40		$	34
Processing	29			24
Terminalling and Transportation	69			58
Total Segment Operating Income	138			116
Unallocated general and administrative expenses	(12		)	(12		)
Interest and financing costs, net	(44		)	(37		)
Equity in earnings of unconsolidated affiliates	4			3
Other income, net	6			—
Net Earnings	$	92		$	70
Capital Expenditures
Gathering	$	25		$	51
Processing	5			1
Terminalling and Transportation	11			15
Total Capital Expenditures	$	41		$	67

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Organization and Basis of Presentation, Fair Value (Details) - USD ($) $ in Billions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Percent of trade payables outstanding	1.00%
Percent of trade receivables outstanding	1.00%
Debt, carrying value	$ 2.9	$ 2.9
Debt, fair value	$ 2.9	$ 2.8
Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Fair Value Assumptions, Expected Term	90 days

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Related-Party Transactions Related-Party Transactions, Summary of Transactions Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	May. 13, 2016	Apr. 20, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Related Party Transactions
Concentration risk, percentage			56.00%		56.00%
Imbalance settlement gains			$ 1		$ 2
Reimbursements from Tesoro			6		$ 6
Cash distributions per unit (dollars per unit)				$ 0.78
Distribution declared (including IDRs)			50
Omnibus Agreement
Related Party Transactions
Payment for Administrative Fees			9
Secondment and Logistics Services Agreement
Related Party Transactions
Long-term Purchase Commitment, Amount			$ 2
Subsequent Event
Related Party Transactions
Declaration date		Apr. 20, 2016
Cash distributions per unit (dollars per unit)		$ 0.81
Distribution declared (including IDRs)	$ 59

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Related-Party Transactions, Summary of Affiliate Transactions (Details) - USD ($) $ in Millions			3 Months Ended
		May. 13, 2016	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Related Party Transactions
Cost of Reimbursable Expense			$ 6		$ 6
Distribution Made to Limited Partner, Distribution Date				Feb. 12, 2016
Revenues	[1]		169		148
Operating and maintenance expenses			37		29
Imbalance settlement gains and reimbursements from Tesoro	[2]		7		8
General and administrative expenses			$ 17		$ 17
Subsequent Event
Related Party Transactions
Distribution Made to Limited Partner, Distribution Date		May 13, 2016

[1] Tesoro accounted for 56% of our total revenues for both the three months ended March 31, 2016 and 2015.

[2] Includes imbalance settlement gains of $1 million and $2 million for the three months ended March 31, 2016 and 2015, respectively. Also includes reimbursements from Tesoro pursuant predominantly to the Amended Omnibus Agreement and the Carson Assets Indemnity Agreement of $6 million for both the three months ended March 31, 2016 and 2015.

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Property, Plant and Equipment (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment
Gross Property, Plant and Equipment	$ 3,502	$ 3,847
Accumulated depreciation	(416)	(397)
Net Property, Plant and Equipment	3,086	3,450
Gathering
Property, Plant and Equipment
Gross Property, Plant and Equipment	1,348	1,700
Processing
Property, Plant and Equipment
Gross Property, Plant and Equipment	563	565
Terminalling and Transportation
Property, Plant and Equipment
Gross Property, Plant and Equipment	$ 1,591	$ 1,582

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Investments - Equity Method Investments - Equity Method (Details)	3 Months Ended
	Mar. 31, 2016
Rendezvous Gas Services, L.L.C.
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	78.00%
Three Rivers Gathering, L.L.C.
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	50.00%
Uintah Basin Field Services, L.L.C.
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	38.00%

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Investments - Equity Method Investments - Equity Method table (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Schedule of Equity Method Investments
Balance at December 31, 2015	$ 58
Effect of Deconsolidation	295
Equity in earnings of unconsolidated affiliates	4	$ 3
Proceeds from Equity Method Investment, Dividends or Distributions	(11)
Balance at March 31, 2016	346
Equity Method Investment, Difference Between Carrying Amount and Underlying Equity	139
Cumulative Effect on Retained Earnings, Net of Tax	$ 2
Rendezvous Gas Services, L.L.C.
Schedule of Equity Method Investments
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	78.00%
Balance at December 31, 2015	$ 0
Effect of Deconsolidation	295
Equity in earnings of unconsolidated affiliates	2
Proceeds from Equity Method Investment, Dividends or Distributions	(9)
Balance at March 31, 2016	$ 288
Three Rivers Gathering, L.L.C.
Schedule of Equity Method Investments
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	50.00%
Balance at December 31, 2015	$ 42
Effect of Deconsolidation	0
Equity in earnings of unconsolidated affiliates	1
Proceeds from Equity Method Investment, Dividends or Distributions	(1)
Balance at March 31, 2016	$ 42
Uintah Basin Field Services, L.L.C.
Schedule of Equity Method Investments
Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest	38.00%
Balance at December 31, 2015	$ 16
Effect of Deconsolidation	0
Equity in earnings of unconsolidated affiliates	1
Proceeds from Equity Method Investment, Dividends or Distributions	(1)
Balance at March 31, 2016	$ 16

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Debt, Total (Details) - USD ($) $ in Millions		Mar. 31, 2016	Dec. 31, 2015
Debt Instrument
Total Debt		$ 2,863	$ 2,883
Unamortized issuance costs	[1]	(42)	(39)
Debt, net of current maturities and unamortized issuance costs		2,821	2,844
5.875% Senior Notes due 2020
Debt Instrument
Debt Instrument, unamortized premium		$ 4	$ 4

[1] Includes unamortized premium associated with our 5.875% Senior Notes due 2020 of $4 million at both March 31, 2016 and December 31, 2015.

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Debt, Revolving Credit Facility (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Jan. 29, 2016
Revolving Credit Facility
Total loan availability	$ 1,600
Maximum loan availability	2,100	$ 1,000
Revolving credit facility
Revolving Credit Facility
Total loan availability	600	$ 900
Borrowings under Revolving Credit Facility	285
Unused loan availability	$ 315
Unused loan availability, percentage	53.00%
Weighted average interest rate	2.76%
Revolver maturity date	Jan. 29, 2021
Collateral	Our Revolving Credit Facility is non-recourse to Tesoro, except for TLGP, and is guaranteed by all of our consolidated subsidiaries, with the exception of Rendezvous Gas Services L.L.C., and secured by substantially all of our assets.
Dropdown Credit Facility
Revolving Credit Facility
Total loan availability	$ 1,000
Borrowings under Revolving Credit Facility	250
Unused loan availability	$ 750
Unused loan availability, percentage	75.00%
Weighted average interest rate	2.70%
Revolver maturity date	Jan. 29, 2021

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Commitments and Contingencies (Details) - USD ($) $ in Millions						3 Months Ended	12 Months Ended
	Apr. 15, 2016	Mar. 29, 2016	Mar. 22, 2016	Jan. 30, 2014	May. 01, 2012	Mar. 31, 2016	Dec. 31, 2015	Dec. 02, 2014
Changes in Environmental Liabilities
Accruals for environmental expenditures						$ 29	$ 33
Tioga Crude Oil Pipeline Release
Changes in Environmental Liabilities
Accruals for environmental expenditures						23	27
Environmental liability insurance deductible						1
Environmental liabilities insurance coverage limit						25
Environmental Remediation Expense							66
Total remediation costs							(41)
Insurance Settlements Receivable							0
Northwest Products System
Changes in Environmental Liabilities
Accruals for environmental expenditures							$ 4
Questar Gas Company v. QEP Field Services Company
Changes in Environmental Liabilities
Loss Contingency, Settlement Agreement, Date			March 22, 2016
Payments for Legal Settlements						15
Complaint filing date					May 1, 2012
Liability for estimated damages								$ 21
Gain (Loss) Related to Litigation Settlement						$ 6
XTO Energy Inc. v. QEP Field Services Company
Changes in Environmental Liabilities
Loss Contingency, Settlement Agreement, Date		March 29, 2016
Complaint filing date				January 30, 2014
Subsequent Event | XTO Energy Inc. v. QEP Field Services Company
Changes in Environmental Liabilities
Litigation Settlement, Amount	$ 22
Proceeds from Legal Settlements	$ 21

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Equity Equity, Narrative (Details)	3 Months Ended
	Mar. 31, 2016 shares
General partner's ownership interest	2.00%
Public common units
Common units outstanding (units)	61,188,041
Tesoro common units
Common units outstanding (units)	32,445,115
Tesoro
Tesoro's ownership interest	36.00%

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Equity Equity, ATM Program (Details) - 2015 ATM Program - USD ($) $ in Millions			3 Months Ended
	Aug. 21, 2015	Aug. 06, 2015	Mar. 31, 2016
Supplemental prospectus, filing date	Aug. 24, 2015
Registration Filing Date		Aug. 06, 2015
Common Units Aggregate Value	$ 750
Issuance of units			103,748
Equity offering, net of issuance costs			$ 5

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Equity, Equity Activity (Details) $ in Millions		3 Months Ended
		Mar. 31, 2016 USD ($) $ / shares	Mar. 31, 2015 USD ($)
Changes in carrying amount of Equity
Balance at December 31, 2015		$ 1,778
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		(86)
Distributions	[1]	(98)
Net earnings		92	$ 70
Contributions	[2]	4
Other		1
Balance at March 31, 2016		$ 1,696
Incentive Distribution, Distribution Split Marginal Percentage		50.00%
Incentive Distribution, Minimum Distribution Level | $ / shares		0.3881
Common
Changes in carrying amount of Equity
Balance at December 31, 2015		$ 1,707
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		(2)
Distributions	[1]	(73)
Net earnings		60
Contributions	[2]	3
Other		1
Balance at March 31, 2016		1,701
General Partner
Changes in carrying amount of Equity
Balance at December 31, 2015		(13)
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		0
Distributions	[1]	(25)
Net earnings		32
Contributions	[2]	1
Other		0
Balance at March 31, 2016		(5)
Noncontrolling Interest
Changes in carrying amount of Equity
Balance at December 31, 2015		84
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		(84)
Distributions	[1]	0
Net earnings		0
Contributions	[2]	0
Other		0
Balance at March 31, 2016		0
ATM Program
Changes in carrying amount of Equity
Equity offering, net of issuance costs		5
ATM Program | Common
Changes in carrying amount of Equity
Equity offering, net of issuance costs		5
ATM Program | General Partner
Changes in carrying amount of Equity
Equity offering, net of issuance costs		0
ATM Program | Noncontrolling Interest
Changes in carrying amount of Equity
Equity offering, net of issuance costs		$ 0

[1] As the result of the reassessment performed, we deconsolidated RGS causing the derecognition of noncontrolling interest and an opening equity impact totaling $86 million. The cumulative effect to opening equity of $2 million related to the difference in earnings under the equity method of accounting in prior periods.

[2] Represents cash distributions declared and paid during the three months ended March 31, 2016 relating to the fourth quarter of 2015.

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Equity Equity, Earnings per unit (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Net earnings	$ 92	$ 70
Net Income (Loss) Attributable to Noncontrolling Interest	0	10
Net Income (Loss) Attributable to Parent		$ 60
Distribution Made to Limited Partner, Cash Distributions Declared	$ 50
Common units - basic	93.6	80.3
Common units - diluted	93.6	80.3
Common - basic	$ 0.64	$ 0.63
Common - diluted	$ 0.64	$ 0.63
General Partner
Net earnings	$ 32
General Partner Distributions	2	$ 2
Incentive Distribution, Subsequent Distribution Amount	30
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	32	14
Common
Net earnings	60
Distribution Made to Limited Partner, Cash Distributions Declared	76	56
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic		10
Participating Securities, Distributed and Undistributed Earnings (Loss), Basic	$ 60	$ 46

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Equity, Cash Distributions (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	May. 13, 2016	Apr. 20, 2016	Mar. 31, 2016	Dec. 31, 2015
Distribution Made to Member or Limited Partner
Quarterly Distribution Per Unit				$ 0.78
Total Cash Distribution including general partner IDRs			$ 108	$ 98
Date of Distribution				Feb. 12, 2016
Unitholders Record Date			May 02, 2016	Feb. 02, 2016
Subsequent Event
Distribution Made to Member or Limited Partner
Quarterly Distribution Per Unit		$ 0.81
Date of Distribution	May 13, 2016
Declaration date		Apr. 20, 2016
Rockies Natural Gas Business Acquisition
Distribution Made to Member or Limited Partner
General partner distribution amount forfeited			$ 3

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Segment Disclosures, Narrative Information (Details)	3 Months Ended
	Mar. 31, 2016 segments facility
Segment Reporting Information
Number of operating segments (segments) | segments	3
Processing | Gas Processing Complexes
Segment Reporting Information
Number of assets (assets)	4
Green River Processing, LLC | Gas Processing Complexes
Segment Reporting Information
Number of assets (assets)	2
Green River Processing, LLC | Fractionation Facility
Segment Reporting Information
Number of assets (assets)	1

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Segment Disclosures, Results (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Revenues
Affiliate	[1]	$ 169	$ 148
Third-party		131	115
Total Revenues		300	263
OPERATING INCOME
Segment Operating Income		138	116
Unallocated general and administrative expenses		(12)	(12)
Interest and financing costs, net		(44)	(37)
Equity in earnings of unconsolidated affiliates		4	3
Other Operating Income (Expense), Net		6	0
Net Earnings		92	70
Segment Reporting Information, Additional Information
Capital Expenditures		41	67
Gathering
Revenues
Affiliate		22	26
Third-party		69	51
Total Revenues		91	77
OPERATING INCOME
Segment Operating Income		40	34
Segment Reporting Information, Additional Information
Capital Expenditures		25	51
Processing
Revenues
Affiliate		26	20
Third-party		45	47
Total Revenues		71	67
OPERATING INCOME
Segment Operating Income		29	24
Segment Reporting Information, Additional Information
Capital Expenditures		5	1
Terminalling and Transportation
Revenues
Affiliate		121	102
Third-party		17	17
Total Revenues		138	119
OPERATING INCOME
Segment Operating Income		69	58
Segment Reporting Information, Additional Information
Capital Expenditures		$ 11	$ 15

[1] Tesoro accounted for 56% of our total revenues for both the three months ended March 31, 2016 and 2015.