8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 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): August 19, 2008

SEMGROUP ENERGY PARTNERS, L.P.

(Exact name of Registrant as specified in its charter)

DELAWARE	001-33503	20-8536826
(State of incorporation or organization)	(Commission file number)	(I.R.S. employer identification number)

Two Warren Place 6120 South Yale Avenue, Suite 500 Tulsa, Oklahoma	74136
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code:  (918) 524-5500

(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))

Item 7.01. Regulation FD Disclosure.

On August 19, 2008, SemGroup Energy Partners, L.P. (the “Partnership”) issued a press release announcing that it will hold a business update call on Wednesday, August 20, 2008, at 3:30 p.m. Central Time (4:30 p.m. Eastern Time).  A copy of the press release is furnished as an exhibit to this Current Report.

In accordance with General Instruction B.2 of Form 8-K, the information set forth in this Item 7.01 and in the attached exhibit shall be deemed to be “furnished” and shall not be deemed to be “filed” for purposes of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”).

Item 9.01. Financial Statements and Exhibits.

(d)           Exhibits

In accordance with General Instruction B.2 of Form 8-K, the information set forth in the attached Exhibit 99.1 is deemed to be “furnished” and shall not be deemed to be “filed” for purposes of the Exchange Act.

EXHIBIT NUMBER		DESCRIPTION
99.1	—	Press release dated August 19, 2008.

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 ENERGY PARTNERS, L.P.

By:  SemGroup Energy Partners G.P., L.L.C.

        its General Partner

Date:  August 19, 2008                                                                           By:  /s/ Alex G. Stallings

Alex G. Stallings

Chief Accounting Officer

INDEX TO EXHIBITS

EXHIBIT NUMBER		DESCRIPTION
99.1	—	Press release dated August 19, 2008.

EX-99.1

SemGroup Energy Partners Announces Business Update Call

Tulsa, Okla. – August 19, 2008 /BUSINESS WIRE/ –

SemGroup Energy Partners, L.P. (NASDAQ: SGLP) will hold a business update call on Wednesday, August 20, 2008, at 3:30 p.m. Central Time (4:30 p.m. Eastern Time).

SemGroup Energy Partners’ senior management team and board members will participate. The conference call can be accessed by:

·   Logging on to www.sglp.com and going to the Investors page,

·   Calling 800-374-0113 from locations inside the United States, or

·   Calling 706-758-9607 from locations outside the United States.

Participants should dial in five to 10 minutes prior to the scheduled start time. An audio replay will be available on the Web site for at least 30 days, and a recording will be available by phone for 14 days. To hear the replay, call 800-642-1687 in the U.S. or call 706-645-9291 from international locations. The pass code for both is 59528025.

About SemGroup Energy Partners, L.P. 

SemGroup Energy Partners owns and operates a diversified portfolio of complementary midstream energy assets. SemGroup Energy Partners provides crude oil and liquid asphalt cement terminalling and storage services and crude oil gathering and transportation services. SemGroup Energy Partners is based in Tulsa, Oklahoma. As a publicly traded master limited partnership, SemGroup Energy Partners’ common units are traded on the NASDAQ Global Market under the symbol SGLP. For more information, visit SemGroup Energy Partners’ web site www.SGLP.com.

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SGLP Investor Relations Contact:

Brian Cropper

Toll Free Phone: 866.490.SGLP (7457)

Phone: 918.524.SGLP (7457)

Email: investor@semgroupenergypartners.com