EXHIBIT 23.6 [RYDER SCOTT COMPANY, L.P. LETTERHEAD] CONSENT OF RYDER SCOTT COMPANY, L.P. As independent oil and gas consultants, we hereby consent to the incorporation by reference of our report letter dated February 8, 2001, our audit letter dated January 29, 2002 and our audit letter dated November 25, 2002, each addressed to Westport Resources Corporation, in this Exchange Offer Registration Statement on Form S-4 (the "Exchange Offer Registration Statement"), to all references to our firm included in the Exchange Offer Registration Statement and to the reference to our firm as experts in the Exchange Offer Registration Statement. RYDER SCOTT COMPANY, L.P. /s/ RYDER SCOTT COMPANY, L.P. Denver, Colorado January 24, 2003