Document:

Form of Restricted Stock Award Agreement

 Exhibit 10.21 
 SemGroup Corporation 
 Equity Incentive Plan 

RESTRICTED STOCK AWARD AGREEMENT 
 THIS RESTRICTED STOCK AWARD AGREEMENT (this “Agreement”) is made effective as of
                    , 2012 (the “Date of Grant”) by and between SemGroup Corporation, a Delaware corporation (with any
successor, the “Company”), and                     (the “Participant”). 

R E C I T A L S: 

WHEREAS, the Company has adopted the SemGroup Corporation Equity Incentive Plan (the “Plan”) and, pursuant to and in
accordance with the Plan, has approved SemGroup Corporation Long-Term Incentive Program (the “LTIP”) as reflected in relevant part in this Agreement, which Plan and LTIP, as each may be amended from time to time, are incorporated
herein by reference and made a part of this Agreement. Capitalized terms not otherwise defined herein shall have the same meanings as ascribed to them in the Plan; and 
 WHEREAS, the Committee has determined that it would be in the best interests of the Company and its stockholders to grant the Shares of Restricted Stock (the “Restricted Shares”) provided
for herein to the Participant pursuant to the Plan and the terms set forth herein. 
 NOW THEREFORE, in consideration of the
mutual covenants hereinafter set forth, the parties agree as follows: 
 1. Restricted Stock Award. Subject to the terms
and conditions of the Plan and this Agreement, the Company hereby grants to the Participant              Restricted Shares, which shall vest and become nonforfeitable in accordance
with Section 3 hereof. 
 2. Certificates; Payment. 

(a) Certificates. A certificate or certificates representing the Restricted Shares shall be issued by the Company
and shall be registered in the name of the Participant on the stock transfer books of the Company promptly following execution of this Agreement by the Participant, but shall remain in the physical custody of the Company or its designee at all times
prior to the vesting of such Restricted Shares pursuant to Section 3 hereof. As a condition to the receipt of this Agreement, the Participant shall deliver to the Company a Stock Power in the form attached hereto as Exhibit A,
duly endorsed in blank, relating to the Restricted Shares. Each certificate representing the Restricted Shares shall bear the following legend: 
 The ownership and transferability of this certificate and these shares are subject to the terms and conditions (including forfeiture) of the SemGroup Corporation Equity Incentive Plan, the SemGroup
Corporation Long-Term Incentive Program, the SemGroup Corporation Executive Stock Ownership Policy and a Restricted Stock Award Agreement entered into between the registered owner and SemGroup Corporation. Copies of such Plan, Program, Policy and
Agreement are on file in the executive offices of SemGroup Corporation. 

 (b) Payment. As soon as administratively practicable, but not later
than sixty (60) days, following the vesting of the Restricted Shares (as described in Section 3 hereof), and upon the satisfaction of all other applicable conditions, including, but not limited to, the payment by the Participant of
all applicable withholding taxes, the Company shall deliver or cause to be delivered to the Participant, or in the case of Participant’s death, Participant’s beneficiary, a certificate or certificates for the applicable Restricted Shares
and Shares representing Dividends paid on such Shares which shall not bear the legend described above, but may bear such other legends as the Company deems advisable pursuant to Section 6 below 

3. Vesting of Restricted Shares. 
 (a) Vesting Schedule. Subject to the Participant’s continued Service through the applicable vesting date, the Restricted Shares shall vest and become nonforfeitable on
                    , 2015. For Purposes of this Agreement, the term “Vesting Period” means the period commencing on the Date
of Grant and continuing through                     , 2015. 

(b) Change of Control. If the Participant’s Service is terminated by the Company without Cause or by the
Participant for Good Reason after or, as determined by the Committee, in connection with, a Change of Control, all of the unvested Restricted Shares shall vest and become nonforfeitable on the date of such termination. 

(c) Death or Disability. If the Participant dies or becomes Disabled during the Vesting Period before the
Participant’s Service otherwise terminates, the Restricted Shares awarded hereunder will vest and become nonforfeitable upon such death or Disability and be paid to the Participant or, in the case of death, to the Participant’s
beneficiary, at the time and in the manner set forth in Section 2 above. 
 (d) Involuntary
Termination of Service. If the Participant’s Service is involuntarily terminated by the Company, as the direct result of a divestiture or otherwise, in each case without Cause, then any unvested Restricted Shares shall become fully vested
upon such termination of Service. 
 (e) Other Termination of Service. If the Participant’s Service
is terminated for any reason, other than as described in Section 3(b), Section 3(c) or Section 3(d) above, the Restricted Shares, to the extent then unvested, and Dividends, if any, distributed thereon shall be
forfeited by the Participant without any consideration. 

  
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 (f) Forfeiture and Cancellation of Restricted Shares and Dividends.
Any Restricted Shares that remain unvested, and Dividends, if any, distributed on unvested Restricted Shares, after                     ,
2015, shall be forfeited without consideration. 
 4. No Right to Continued Service. The granting of the Restricted
Shares evidenced hereby and this Agreement shall impose no obligation on the Company or any Affiliate to continue the Service of the Participant and shall not lessen or affect any right that the Company or any Affiliate may have to terminate the
Service of such Participant. 
 5. Rights as a Stockholder. 

(a) During the Restriction Period, the Participant shall have none of the rights of a Stockholder of the Company, except
that the Participant shall: (a) be entitled to exercise all of the voting rights of a Stockholder of the Company, and (b) have the right to receive dividends on the Restricted Shares that vest and become nonforfeitable under this Agreement
(the “Dividends”), subject to the remainder of this Section 5. 
 (b) The Dividends,
if any, shall be held by the Company and shall be subject to forfeiture until such time that the Restricted Shares on which the Dividends were distributed vest and become nonforfeitable in accordance with Section 3 above. The Dividends
that vest and become nonforfeitable in accordance with this Section 5 shall be converted into Shares and released to the Participant, subject to Section 10 hereof, as soon as administratively practicable following vesting of
the Restricted Shares on which such Dividends were distributed, but not later than the time of delivery to the Participant, in accordance with Section 2 above, of certificates representing the Restricted Shares on which the Dividends
were distributed. The number of Shares payable with respect to any Dividends released to the Participant under this Section 5 shall equal the dollar amount of Dividends distributed by the Company on Restricted Shares that vest and become
nonforfeitable under this Agreement divided by the Fair Market Value of a Share at the close of business on the day such Dividends vest and become nonforfeitable. Partial shares will be paid in cash. 

(c) Until converted into Shares and released to the Participant, the Dividends shall remain assets of the Company subject
to the claims of the Company’s general creditors. Dividends distributed and held by the Company on any Restricted Shares that do not vest in accordance with Section 3 hereof shall be forfeited by the Participant without any
consideration. 
 6. Securities Laws; Legend on Certificates. The issuance and delivery of Restricted Shares and Shares
representing Dividends shall comply with all applicable requirements of law, including (without limitation) the Securities Act of 1933, as amended, the rules and regulations promulgated thereunder, state securities laws and regulations, and the

  
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regulations of any stock exchange or other securities market on which the Company’s securities may then be traded. If the Company deems it necessary to ensure that the issuance of Restricted
Shares and Shares representing Dividends under the Plan is not required to be registered under any applicable securities laws, each Participant to whom such Restricted Shares and Shares would be issued shall deliver to the Company an agreement or
certificate containing such representations, warranties and covenants as the Company may request which satisfies such requirements. The certificates representing the Restricted Shares and Shares representing Dividends shall be subject to such stop
transfer orders and other restrictions as the Committee may deem reasonably advisable, and the Committee may cause a legend or legends to be put on any such certificates to make appropriate reference to such restrictions. 

7. Transferability of Restricted Shares. 
 (a) Before Vesting. Prior to vesting, the Restricted Shares may not be assigned, alienated, pledged, attached, sold or otherwise transferred or encumbered by the Participant other than by will or
by the laws of descent and distribution, and any such purported assignment, alienation, pledge, attachment, sale, transfer or encumbrance shall be void and unenforceable against the Company and all Affiliates; provided that the
designation of a beneficiary for receipt of any Restricted Shares and/or Dividends shall not constitute an assignment, alienation, pledge, attachment, sale, transfer or encumbrance. No such permitted transfer of the Restricted Shares to heirs or
legatees of the Participant shall be effective to bind the Company unless the Committee shall have been furnished with written notice thereof and a copy of such evidence as the Committee may deem necessary to establish the validity of the transfer
and the acceptance by the transferee or transferees of the terms and conditions hereof. 
 (b) Before and
After Vesting. In addition to other restrictions imposed hereunder or otherwise by the Committee or by law, transferability of Restricted Shares and Shares, if any, representing Dividends shall be subject to the SemGroup Corporation Executive
Stock Ownership Policy as approved by the Committee. 
 8. Adjustment of Restricted Shares. Adjustments to the Restricted
Shares shall be made in accordance with Article 12 of the Plan. 
 9. Definitions. The following terms shall have
the meanings set forth below: 
 “Cause” shall mean, with respect to the Participant, one or
more of the following: (a) the plea of guilty or nolo contendere to, or conviction of, the commission of a felony offense (b) any act of willful fraud, dishonesty or moral turpitude that causes a material harm to the Company or any
Subsidiary or Affiliate, (c) gross negligence or gross misconduct with respect to the Company or any Subsidiary or Affiliate, (d) willful and deliberate failure to perform his or her employment duties in any material respect, or
(e) breach of a material written employment policy of the Company or any Subsidiary or Affiliate, provided, however, that in the case of a Participant who has an employment agreement with the Company or any Subsidiary or Affiliate
in which “Cause” is defined, “Cause” shall be determined in accordance with such definition. 

  
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 “Good Reason” shall mean the occurrence of one or more of
the following without the consent of the Participant: (a) a material reduction in the Participant’s base salary or incentive compensation opportunity (other than a general reduction that affects all similarly situated Participants equally)
(b) a material reduction of Participant’s duties and responsibilities or an adverse change in Participant’s title, or (c) a transfer of Participant’s primary workplace by more than thirty-five (35) miles from the
location of Participant’s current primary workplace, provided, that Participant shall first have given the Company written notice that an event or condition constituting Good Reason has occurred and specifying in reasonable detail
the circumstances constituting such Good Reason within thirty (30) days after such occurrence, and the Company shall have a period of thirty (30) days after receiving such written notice to effectively cure or remedy such occurrence, and
provided, further, that, that in the case of a Participant who has an employment agreement with the Company or any Subsidiary or Affiliate in which “Good Reason” is defined, “Good Reason” shall be determined
in accordance with such definition. 
 “Disability” or “Disabled” shall have
the meaning set forth in the Company’s long-term disability plan. 
 10. Withholding. 

(a) Participant’s Payment Obligation. The Participant agrees that (i) he or she will pay to the Company
or any applicable Subsidiary, as the case may be, or make arrangements satisfactory to the Company or such Subsidiary regarding the payment of any foreign, federal, state, or local taxes of any kind required by law to be withheld by the Company or
such Subsidiary with respect to the Restricted Shares, and (ii) the Company, or such Subsidiary, shall, to the extent permitted by law, have the right to deduct from any payments of any kind otherwise due to the Participant any foreign,
federal, state, or local taxes of any kind required by law to be withheld with respect to the Restricted Shares. 

(b) Withholding Restricted Shares and Shares Representing Dividends. With respect to withholding required upon the
lapse of restrictions or upon any other taxable event arising as a result of the Restricted Shares awarded and/or Dividends vesting, the Participant may elect, subject to the approval of the Committee, to satisfy the withholding requirement, in
whole or in part, by having the Company or any applicable subsidiary withhold Restricted Shares and/or Shares representing Dividends having a Fair Market Value on the date the tax is to be determined equal to the minimum statutory total tax which
could be withheld on the transaction. All such elections shall be irrevocable, made in writing, signed by the Participant, and shall be subject to any restrictions or limitations that the Committee, in its sole discretion, deems appropriate.

 11. Notices. Any notification required by the terms of this Agreement shall be given in writing and shall be deemed
effective upon personal delivery or within three (3) days of deposit with the United States Postal Service (or in the case of a non-U.S. Participant, the foreign postal service of the country in which the Participant resides), by registered or
certified mail, with postage and fees prepaid. A notice shall be addressed to the Company, Attention: General Counsel, at its principal executive office and to the Participant at the address that he or she most recently provided to the Company.

  
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 12. Entire Agreement. This Agreement and the Plan constitute the entire contract
between the parties hereto with regard to the subject matter hereof. They supersede any other agreements, representations or understandings (whether oral or written and whether express or implied) which relate to the subject matter hereof.

 13. Waiver. No waiver of any breach or condition of this Agreement shall be deemed to be a waiver of any other or
subsequent breach or condition whether of like or different nature. 
 14. Participant Undertaking. The Participant
agrees to take whatever additional action and execute whatever additional documents the Company may deem necessary or advisable to carry out or effect one or more of the obligations or restrictions imposed on either the Participant or the Restricted
Shares pursuant to this Agreement. 
 15. Successors and Assigns. The provisions of this Agreement shall inure to the
benefit of, and be binding upon, the Company and its successors and assigns and upon the Participant, the Participant’s assigns and the legal representatives, heirs and legatees of the Participant’s estate, whether or not any such person
shall have become a party to this Agreement and agreed in writing to be joined herein and be bound by the terms hereof. 
 16.
Choice of Law; Jurisdiction; Waiver of Jury Trial. This Agreement shall be governed by the laws of the State of Delaware, excluding any conflicts or choice of law rule or principle that might otherwise refer construction or interpretation of
the Plan to the substantive law of another jurisdiction. 
 SUBJECT TO THE TERMS OF THIS AGREEMENT, THE PARTIES AGREE THAT ANY
AND ALL ACTIONS ARISING UNDER OR IN RESPECT OF THIS AGREEMENT SHALL BE LITIGATED IN THE FEDERAL OR STATE COURTS IN DELAWARE. BY EXECUTING AND DELIVERING THIS AGREEMENT, EACH PARTY IRREVOCABLY SUBMITS TO THE PERSONAL JURISDICTION OF SUCH COURTS FOR
ITSELF, HIMSELF OR HERSELF AND IN RESPECT OF ITS, HIS OR HER PROPERTY WITH RESPECT TO SUCH ACTION. EACH PARTY AGREES THAT VENUE WOULD BE PROPER IN ANY OF SUCH COURTS, AND HEREBY WAIVES ANY OBJECTION THAT ANY SUCH COURT IS AN IMPROPER OR INCONVENIENT
FORUM FOR THE RESOLUTION OF ANY SUCH ACTION. 
 EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ALL RIGHT TO TRIAL BY JURY
IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT. 
 17. Restricted Shares Subject to
Plan. By entering into this Agreement the Participant agrees and acknowledges that the Participant has received and read a copy of the Plan. The Restricted Shares are subject to the Plan. In the event of a conflict between any term or provision
contained herein and a term or provision of the Plan, the applicable terms and provisions of the Plan will govern and prevail. The Participant has had the opportunity to retain counsel, and has read carefully, and understands, the provisions of the
Plan and this Agreement. 

  
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 18. Amendment. The Committee may amend or alter this Agreement, the LTIP and the
Restricted Shares granted hereunder at any time; provided, that, subject to Article 10, Article 11 and Article 12 of the Plan, no such amendment or alteration shall be made without the consent of the Participant if
such action would materially diminish any of the rights of the Participant under this Agreement or with respect to the Restricted Shares. 
 19. No Section 83(b) Election. The Participant agrees not to make an election with the Internal Revenue Service under Section 83(b) of the Code with respect to the Restricted Shares.

 20. Severability. The provisions of this Agreement are severable and if any one or more provisions are determined to
be illegal or otherwise unenforceable, in whole or in part, the remaining provisions shall nevertheless be binding and enforceable. 
 21. Signature in Counterparts. This Agreement may be signed in counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same
instrument. 
 22. No Guarantees Regarding Tax Treatment. Participants (or their beneficiaries) shall be responsible for
all taxes with respect to the Restricted Shares and the Dividends. The Committee and the Company make no guarantees regarding the tax treatment of the Restricted Shares or the Dividends. Neither the Committee nor the Company has any obligation to
take any action to prevent the assessment of any tax under Section 409A of the Code or Section 457A of the Code or otherwise and none of the Company, any Subsidiary or Affiliate, or any of their employees or representatives shall have any
liability to a Participant with respect thereto. 
 23. Compliance with Section 409A. The Company intends that the
Restricted Shares and right to receive Dividends be structured in compliance with, or to satisfy an exemption from, Section 409A of the Code and all regulations, guidance, compliance programs and other interpretative authority thereunder
(“Section 409A”), such that there are no adverse tax consequences, interest, or penalties under Section 409A as a result of the award, vesting or payment of the Restricted Shares or payment of Dividends. Accordingly, in the
event of any ambiguity, the Agreement shall be construed and administered in accordance with such intent. In addition, in the event the Restricted Shares or Dividends are subject to Section 409A, the Committee may, in its sole discretion, take
the actions described in Section 11.1 of the Plan. Notwithstanding any contrary provision in the Plan or this Agreement, any payment(s) of nonqualified deferred compensation (within the meaning of Section 409A) that are otherwise
required to be made under this Agreement to a “specified employee” (as defined under Section 409A) as a result of his or her separation from service (other than a payment that is not subject to Section 409A) shall be delayed for
the first six (6) months following such separation from service (or, if earlier, the date of death of the specified employee) and shall instead be paid on the date that immediately follows the end of such six (6) month period or as soon as
administratively practicable thereafter. A termination of Service shall not be deemed to have 

  
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occurred for purposes of any provision of the Agreement providing for the payment of any amounts or benefits that are considered nonqualified deferred compensation under Section 409A upon or
following a termination of Service, unless such termination is also a “separation from service” within the meaning of Section 409A and the payment thereof prior to a “separation from service” would violate Section 409A.
For purposes of any such provision of this Agreement relating to any such payments or benefits, references to a “termination,” “termination of Service” or like terms shall mean “separation from service.” 

24. Forfeiture and Clawback. Notwithstanding any other provision of the Plan or this Agreement to the contrary, by signing this
Agreement, the Participant acknowledges that any incentive-based compensation paid to the Participant hereunder may be subject to recovery by the Company under any clawback policy that the Company may adopt from time to time, including without
limitation any policy that the Company may be required to adopt under Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act and the rules and regulations of the U.S. Securities and Exchange Commission thereunder or the
requirements of any national securities exchange on which the Shares may be listed. The Participant further agrees to promptly return any such incentive-based compensation which the Company determines it is required to recover from the Participant
under any such clawback policy. 
 [SIGNATURE PAGE FOLLOWS] 

  
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 IN WITNESS WHEREOF, the parties hereto have executed this Restricted Stock Award Agreement
as of the date first written above. 
  

			
	SemGroup Corporation
		
	By:	 	  

	Name:	 	
	Title:	 	

  

			
	Agreed and acknowledged as
	
	of the date first above written:
	
	  

	  Participant

  
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 EXHIBIT A 
 STOCK POWER 
 FOR VALUE RECEIVED the undersigned
hereby sells, assigns and transfers unto SemGroup Corporation (the “Company”),                     
(            ) shares of the Class A common stock, par value $0.01 per share, of the Company standing in his/her/their/its name on the books of the Company represented by
Certificate No.                      herewith and does hereby irrevocably constitute and appoint
                     his/her/their/its attorney-in-fact, with full power of substitution, to transfer such shares on the books of the Company.

  

							
	Dated:                     	 		 	Signature:	 	  

  

					
	Print Name and Mailing Address	 		 	
			
	 	 		 	
			
	 	 		 	
			
	 	 		 	

  

			
	Instructions:	 	Please do not fill in any blanks other than the signature line and printed name and mailing address. Please print your name exactly as you would like your name to
appear on the issued stock certificate. The purpose of this assignment is to enable the forfeiture of the shares without requiring additional signatures on your part.

  
 10Consulting Services Agreement

 Exhibit 10.23 
 CONSULTING SERVICES AGREEMENT 
 THIS CONSULTING
SERVICES AGREEMENT (this “Agreement”) is entered into as of the 10th day of January, 2012, by and between SEMGROUP CORPORATION, a Delaware corporation (“SemGroup”) and David B. Gorte. SemGroup and its direct and indirect subsidiaries and its affiliates are
sometimes collectively referred to herein as (the “Company”). 
 WITNESSETH: 

WHEREAS, Consultant has experience and expertise in providing business development expertise relating to SemGroup’s corporate
business development efforts requested by SemGroup’s management; and 
 WHEREAS, the Company wishes to obtain certain
services from Consultant in connection with its operations and Consultant is willing to provide such advice and assistance to the Company on the terms specified herein. 
 NOW, THEREFORE, for and in consideration of the premises and the mutual promises and covenants hereinafter set forth, the parties hereto agree as follows: 

1. SERVICES TO BE PERFORMED. The services to be provided by Consultant shall consist of assisting the corporate business development team
with various growth projects by providing consulting services, including, without limitation, data and advice regarding economic fundamentals, transaction structuring, analysis and financing; assisting in transaction and contract negotiation and
providing commodity price hedging advice (collectively, the “Services”). All of the Services shall be rendered at the request and under the general direction of Norm Szydlowski, SemGroup’s CEO or Tim O’Sullivan, SemGroup’s
Vice President of Corporate Planning and Strategic Initiatives. Subject to Paragraph 10 below, SemGroup will cause the Company to provide Consultant such information about the business activities of the Company as Consultant may reasonably require
in order to carry out the Services. 
 2. STANDARD OF PERFORMANCE. All of the Services will be performed by Consultant with a
level of skill and care generally exercised by other professional consultants engaged in performing the same or similar services. In performing the Services, Consultant will cooperate fully and completely with the CEO and VP of Corporate Planning
and Strategic Initiatives of SemGroup Corporation and other personnel of the Company as requested by such persons and comply fully with all applicable laws. 
 3. RELATIONSHIP. The relationship between SemGroup and Consultant shall be that of independent contractors and Consultant shall not be or be deemed to be a partner, agent or employee of SemGroup or any of
its affiliates. Consultant shall not be eligible to participate in any employee pension, insurance, medical, retirement or other fringe benefit plan of SemGroup or any of its affiliates on account of the provision of Services pursuant to this
Agreement. 

  
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 4. TERM. This Agreement shall become effective on February 2, 2012 and shall terminate
on December 31, 2012, unless earlier terminated in accordance with Paragraph 13 hereof or unless extended by the mutual agreement of the parties hereto. 
 5. AVAILABILITY. Consultant shall use reasonable efforts to be available, on a non-exclusive basis, to perform the Services for SemGroup on a project basis, subject to other business and personal
commitments. The Company will not require Consultant to be available on a full-time basis. Nothing in this Agreement shall prevent Consultant from entering into other business arrangements, including other consulting services, for other persons or
entities, provided that such arrangements do not conflict with the Services to be provided hereunder. Consultant shall use reasonable efforts to provide SemGroup at the end of each month a schedule of his anticipated availability to perform Services
for the upcoming month. 
 6. COMPENSATION. SemGroup shall pay Consultant $175 for each hour worked in connection with providing
the Services, which shall be payable monthly in arrears. Consultant will invoice SemGroup for the Services performed, along with reasonable detail regarding the Services provided, no later than 30 days following the last day of the month in which
Services were provided. SemGroup shall remit payment for the Services and reasonable expenses within 30 days of receipt of such invoice from the Consultant. SemGroup shall pay Consultant $87.50 for each hour of travel time, including without
limitation, from Consultant’s address as noted herein, to and from any location requested by SemGroup. 
 7. EXPENSES AND
FACILITIES. SemGroup shall reimburse Consultant for all reasonable business expenses, including, without limitation, reasonable travel expenses paid or incurred by Consultant directly in connection with the performance of the Services. In addition,
when it is required that the Consultant work out of the Tulsa office, SemGroup shall make available to Consultant without charge appropriate office space, office equipment, secretarial assistance, parking and communications equipment at the
Company’s offices in Tulsa, Oklahoma. SemGroup shall make available to Consultant at no or nominal cost such data available to SemGroup related to the Services as reasonably requested by Consultant. 

8. TAXES. Consultant will pay, be fully responsible for and indemnify SemGroup and its affiliates against taxes attributable to the
compensation payable to Consultant hereunder, including, without limitation, income, unemployment, social security and medicare taxes. 
 9. INDEMNIFICATION. SemGroup will indemnify Consultant and hold Consultant harmless from and against any and all expense or liability (including, but not limited to, attorneys’ fees and expenses)
which arises as a result of any claim or liability relating to Consultant’s provision of the Services, provided such liability is not as a result of Consultant’s negligence, willful misconduct or failure to comply with the provisions of
this Agreement. This indemnification shall survive the termination of this Agreement. 
 10. CONFIDENTIALITY. Except with
SemGroup’s prior written consent or as otherwise required or allowed by law, Consultant will hold in confidence, not disclose to any other person or entity or use for Consultant’s own personal benefit or the benefit of any other person or
entity all information regarding the Company, its employees and the business activities 

  
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conducted by the Company, which Consultant obtains or becomes aware of during the course of providing Services, unless such information has become publicly available other than as a result of a
breach of this Agreement by Consultant. The requirements of this Paragraph 10 shall survive expiration or termination of this Agreement for a period of two (2) years. 
 11. COMPLIANCE WITH LAWS AND RULES. The Parties acknowledge that SemGroup and all of its employees, officers, directors and representatives are subject to the United States Foreign Corrupt Practices Act
(“FCPA”) and that, accordingly, all of Consultant’s activities under or in connection with this Agreement are subject to the requirements of the FCPA. Consultant warrants that it has read and understands the full text of the
Anti-Corruption Policy issued by SemGroup dated August, 2011 (the “Policy”) and the Code of Business Conduct and Ethics issued by SemGroup dated August, 2011 (the “Code”). Consultant further warrants and agrees
that it and all who act on its behalf will fully and faithfully comply with all requirements of the FCPA, the Policy and the Code, as the same may hereafter be amended from time to time, in connection with all of its activities under or in respect
of this Agreement. Specifically, Consultant warrants and agrees that neither it nor anyone acting on its behalf will pay, offer to pay or give anything of value to any government official, political party or political candidate, any public
international organization official or any other person with the knowledge that the payment, promise or gift, in whole or in part, will be passed on to any of the foregoing in order to influence an official act or decision that will assist SemGroup
or Consultant in securing an improper advantage or in obtaining or retaining business or in directing business to any other person or entity. Consultant acknowledges that no employee, officer or other representatives of SemGroup is authorized
to waive Consultant’s compliance with this Paragraph 11.
 12. Intentionally Deleted 

13. TERMINATION. Either party may terminate this Agreement for cause with immediate effect if the other party fails to comply with its
obligations under this Agreement and does not cure such failure within five (5) business days after notice of such failure has been provided. In addition, either party may terminate this Agreement earlier upon thirty (30) days’ prior
written notice to the other party. In the event of termination under this Paragraph 13, SemGroup shall pay Consultant the compensation, if any, due under Paragraph 6 and any amounts for which Consultant is entitled to reimbursement under Paragraph 7
through the date of termination. 
 14. NOTICES. Any notice required or permitted to be given under this Agreement shall be in
writing and shall be effective upon delivery to the party at the party’s address or facsimile number stated herein. Either party may change such party’s address stated herein by giving notice of the change in accordance with this Paragraph
14. 
  

			
	If to SemGroup:	  	SemGroup Corporation.
		  	Two Warren Place
		  	6120 South Yale Avenue, Suite 700
		  	Tulsa, OK 74136-4216
		  	Facsimile: (918) 524-8687
		  	Attn: Candice Cheeseman

  
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	If to Consultant:	  	David B. Gorte            
		  	2614 Sutton Court
		  	Houston, TX 77027            

 15. ASSIGNMENT. All rights and obligations herein contained shall inure to the benefit of and be binding
upon SemGroup, Consultant, their successors and their permitted assigns. Consultant shall not assign any rights or obligations under this Agreement without the prior written consent of SemGroup. 

16. GOVERNING LAW. This Agreement shall be governed and construed in accordance with the laws of the State of Oklahoma, United States of
America, excluding any conflict of law or other provisions referencing the laws of another jurisdiction. 
 17. ENTIRE AGREEMENT
AND WAIVER. This Agreement constitutes the entire agreement between the parties hereto with respect to the subject matter hereof and supersedes any other understanding entered into by or on account of the parties with respect to the subject matter
hereof to the extent inconsistent herewith. This Agreement may not be changed, modified or amended except in writing signed by the parties hereto. The failure of either party to exercise any rights under this Agreement for a breach thereof shall not
be deemed to be a waiver of such rights or a waiver of any subsequent breach. 
 IN WITNESS WHEREOF, the parties hereto have
executed this Agreement as of the day and year first above written. 
  

							
	CONSULTANT	 	SEMGROUP CORPORATION
				
	By:	 	 /s/ David B. Gorte
	 	By:	 	 /s/ Norman Szydlowski

				
	Name:	 	David B. Gorte	 	Name:	 	Norman Szydlowski
				
		 		 	Title:	 	President and CEO

  
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