8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of report (Date of earliest event reported): February 4, 2016

SEMGROUP CORPORATION

(Exact Name of Registrant as Specified in Its Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

1-34736	20-3533152
(Commission File Number)	(IRS Employer Identification No.)

Two Warren Place

6120 S. Yale Avenue, Suite 700

Tulsa, OK 74136-4216

(Address of Principal Executive Offices) (Zip Code)

(918) 524-8100

(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(b) On February 4, 2016, Peter L. Schwiering, age 71, advised SemGroup Corporation (the “Company”) that he will retire as Vice President of the Company once a successor is in place. Mr. Schwiering will continue to serve in his current capacities to ensure an orderly transition.

Item 7.01. Regulation FD Disclosure.

On February 10, 2016, the Company issued a press release announcing the planned retirement of Mr. Schwiering, a Vice President of the Company. A copy of the press release is being furnished and is attached as Exhibit 99.1 hereto and is incorporated into this Item 7.01 by reference. In accordance with General Instruction B.2 of Form 8-K of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), the press release shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, nor shall such information and such exhibit be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Item 9.01. Financial Statements and Exhibits.

(d)    Exhibits.

The following exhibit is furnished herewith.

Exhibit No.	Description
99.1	Press Release dated February 10, 2016, issued by SemGroup Corporation.

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SIGNATURES

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

SEMGROUP CORPORATION

Date: February 10, 2016

By: /s/ William H. Gault        

William H. Gault

Corporate Secretary

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EXHIBIT INDEX

The following exhibit is furnished herewith.

Exhibit No.	Description
99.1	Press Release dated February 10, 2016, issued by SemGroup Corporation.

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EX-99.1

Exhibit 99.1

SemGroup Corporation and Rose Rock Midstream Announce Planned Retirement of Vice President Peter L. Schwiering

Company Initiates Search for New Vice President

Tulsa, OK—February 10, 2016— SemGroup® Corporation (NYSE:SEMG) and Rose Rock Midstream, L.P. (NYSE:RRMS) today announced that Peter L. Schwiering, 71, who has served as a SemGroup vice president since February 2012, and in a variety of other leadership roles with the Company’s crude oil division since November 2000, including most recently as Chief Operating Officer and a director of the general partner of Rose Rock, will retire once a successor is in place. He will continue to serve in his current capacities until a successor is in place to ensure an orderly transition.

SemGroup will initiate a comprehensive search process to identify a successor. The company will consider both internal and external candidates, and Schwiering will work with the company to help identify his successor.

Carlin G. Conner, president and chief executive officer of SemGroup, said, “On behalf of SemGroup and Rose Rock, we wish Pete all the best in his retirement. With more than 40 years of industry experience, Pete has been a critical component in the growth of our company. Fortunately for us we expect to have access to Pete and his vast knowledge of crude oil markets post retirement by means of a consultancy agreement. Pete will also be instrumental in selecting his successor later in the year.”

About SemGroup CorporationBased in Tulsa, Oklahoma, SemGroup® Corporation (NYSE: SEMG) is a publicly traded midstream service company providing the energy industry the means to move products from the wellhead to the wholesale marketplace. SemGroup provides diversified services for end users and consumers of crude oil, natural gas, natural gas liquids, refined products and asphalt. Services include purchasing, selling, processing, transporting, terminalling and storing energy.

About Rose Rock Midstream

Rose Rock Midstream, L.P. (NYSE:RRMS) is a growth-oriented Delaware limited partnership formed by SemGroup® Corporation (NYSE:SEMG) to own, operate, develop and acquire a diversified portfolio of midstream energy assets. Rose Rock Midstream provides crude oil gathering, transportation, storage and marketing services. Headquartered in Tulsa, OK, Rose Rock Midstream has operations in six states with the majority of its assets strategically located in or connected to the Cushing, Oklahoma crude oil marketing hub.

Contacts:

Investor Relations:    Media:

Alisa Perkins     Kiley Roberson

SemGroup - 918-524-8081     918-524-8594

Rose Rock Midstream - 918-524-7711     kroberson@semgroupcorp.com

investor.relations@semgroupcorp.com     kroberson@rrmidstream.com

roserockir@rrmidstream.com