Genesis Energy (GEL) 10-Q 2007 Q2 Quarterly report

Exhibit 32.2

CERTIFICATION BY CHIEF FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Genesis Energy, L.P. (the “Partnership”) for the period ended June 30, 2007 (the “Report”) filed with the Securities and Exchange Commission on the date hereof, I, Ross A. Benavides, Chief Financial Officer of Genesis Energy, Inc., the general partner of the Partnership, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) the Partnership’s Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Partnership.

August 9, 2007  /s/ Ross A. Benavides

Ross A. Benavides

Chief Financial Officer,

Genesis Energy, Inc.