exhibit233.htm

The undersigned hereby consents to the references to our firm in the form and context in which they appear in the Annual Report on Form 10-K of St. Mary Land & Exploration Company for the year ended December 31, 2009. We further consent to the incorporation by reference thereof into St. Mary Land & Exploration Company's Post-Effective Amendment No. 1 to Registration Statement Nos. 333-30055, 333-35352, 333-88780, and 333-106438 on Form S-8 and Registration Statement Nos. 033-61850, 333-58273, 333-134221, and 333-151779 on Form S-8.