EXHIBIT
32.1
CERTIFICATION
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 St. Mary Land &
Exploration Company (the “Company”) for the quarterly period ended March 31,
2008 as filed with the Securities and Exchange Commission on the date hereof
(the “Report”), Anthony J. Best, as President and Chief Executive Officer of the
Company, and Mark T. Solomon, as Controller and Acting Principal Financial
Officer of the Company, each hereby certifies, pursuant to and solely for the
purpose of 18 U.S.C. § 1350, as adopted pursuant to § 906 of the
Sarbanes-Oxley Act of 2002, to the best of his knowledge and belief,
that:
(1) The
Report fully complies with the requirements of section 13(a) or 15(d) of the
Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and
(2) The
information contained in the Report fairly presents, in all material respects,
the financial condition and results of operations of the Company.
/s/ ANTHONY J.
BEST
Anthony
J. Best
President
and Chief Executive Officer
May 2,
2008
/s/ MARK T.
SOLOMON
Mark T.
Solomon
Controller
and Acting Principal Financial Officer
May 2,
2008