EX-10.6



 Exhibit 10.6 

Execution Version 

AMENDMENT NO. 1 TO THE SECONDMENT AND LOGISTICS SERVICES AGREEMENT 

THIS AMENDMENT NO. 1 TO THE SECONDMENT AND LOGISTICS SERVICES AGREEMENT (this “Amendment”), dated as of
December 2, 2014, 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” and, together with TCI 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, as of the date hereof, pursuant to that certain Membership Interest Purchase Agreement, dated October 19, 2014 (the
“MIPA”), between QEP Field Services Company, LLC, a Delaware corporation, and Tesoro Logistics LP, a Delaware limited partnership (“TLLP”), TLLP acquired the membership interests of QEPFS, which entity directly or
indirectly holds the equity interests of the QEP Group (other than itself); 
 WHEREAS, the Parties desire to amend the Secondment
Agreement to add the entities acquired pursuant to the MIPA as parties to the Secondment Agreement. 
 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 member of the QEP Group is made a
party for all purposes to the Secondment Agreement, and shall hereafter be a “Party” and a member of the “Logistics 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. 

(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
					
	By:	 	/s/ Phillip M. Anderson	 		 	By:	 	/s/ Phillip M. Anderson
	 Name:
	 	 Phillip M. Anderson
	 		 	Name:	 	Phillip M. Anderson
	 Title:
	 	 President
	 		 	Title:	 	President
			
	 TESORO HIGH PLAINS PIPELINE COMPANY LLC
	 		 	TESORO LOGISTICS PIPELINES LLC
					
	By:	 	/s/ Phillip M. Anderson	 		 	By:	 	/s/ Phillip M. Anderson
	 Name:
	 	 Phillip M. Anderson
	 		 	Name:	 	Phillip M. Anderson
	 Title:
	 	 President
	 		 	Title:	 	President
			
	 TESORO ALASKA PIPELINE COMPANY LLC
	 		 	TESORO LOGISTICS NORTHWEST PIPELINE LLC
					
	By:	 	/s/ Phillip M. Anderson	 		 	By:	 	/s/ Phillip M. Anderson
	 Name:
	 	 Phillip M. Anderson
	 		 	Name:	 	Phillip M. Anderson
	 Title:
	 	 President
	 		 	Title:	 	President
			
	 QEP FIELD SERVICES, LLC
	 		 	QEP MIDSTREAM PARTNERS GP, LLC
					
	By:	 	/s/ Phillip M. Anderson	 		 	By:	 	/s/ Phillip M. Anderson
	 Name:
	 	 Phillip M. Anderson
	 		 	Name:	 	Phillip M. Anderson
	 Title:
	 	 President
	 		 	Title:	 	President
			
	QEP MIDSTREAM PARTNERS OPERATING, LLC	 		 	QEPM GATHERING I, LLC
					
	By:	 	/s/ Phillip M. Anderson	 		 	By:	 	/s/ Phillip M. Anderson
	 Name:
	 	 Phillip M. Anderson
	 		 	Name:	 	Phillip M. Anderson
	 Title:
	 	 President
	 		 	Title:	 	President

 Signature Page to Amendment No. 1 to Secondment Agreement 








									
			
	GREEN RIVER PROCESSING, LLC	 		 	RENDEZVOUS PIPELINE COMPANY, LLC
					
	By:	 	 /s/ Phillip M. Anderson
	 		 	By:	 	 /s/ Phillip M. Anderson

	Name:	 	Phillip M. Anderson	 		 	Name:	 	Phillip M. Anderson
	Title:	 	President	 		 	Title:	 	President


  
 Signature Page to
Amendment No. 1 to Secondment Agreement 









									
			
	TESORO REFINING & MARKETING COMPANY LLC	 		 	TESORO COMPANIES, INC.
					
	By:	 	/s/ Keith M. Casey	 		 	By:	 	/s/ Keith M. Casey
	 Name:
	 	 Keith M. Casey
	 		 	Name:	 	Keith M. Casey
	 Title:
	 	 Executive Vice President, Operations
	 		 	Title:	 	Executive Vice President, Operations
			
	TESORO ALASKA COMPANY LLC	 		 	
					
	By:	 	/s/ Keith M. Casey	 		 		 	
	 Name:
	 	 Keith M. Casey
	 		 		 	
	 Title:
	 	 Executive Vice President, Operations
	 		 		 	


  
 Signature Page to
Amendment No. 1 to Secondment Agreement