Exhibit 32.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO 18 U.S.C. § 1350  AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Reef Global Energy VII, L.P. (the Partnership) on Form 10-K for the fiscal year ended December 31, 2007 as filed with the Securities and Exchange Commission on the date hereof (the Report), I, Michael J. Mauceli, principal executive officer of Reef Oil & Gas Partners, L.P., the managing general partner of Reef Global Energy VII, L.P., certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(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.

Date:  April 15, 2008	Reef Oil & Gas Partners, L.P.
	Managing General Partner
	By: Reef Oil & Gas Partners, GP, LLC
	/s/ Michael J. Mauceli
	Michael J. Mauceli
	Manager and Member
	(Principal Executive Officer)

This certification is not deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section.  This certification is not deemed to be incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, except to the extent that the Partnership specifically incorporates it by reference.