EXHIBIT 23.4 INDEPENDENT PETROLEUM ENGINEER'S CONSENT We hereby consent to the incorporation by reference in the Annual Report on Form 10-K of Southern Mineral Corporation, a Nevada corporation (the "Company"), of the references to this firm and to its reports listed below for the Company's estimated domestic proved reserves contained in the Annual Report on Form 10-K for the year ended December 31, 1998. 1. Report of Ecuador reserves as of January 1, 1998. 2. Audit of certain domestic reserves as of January 1, 1999. /s/ RYDER SCOTT COMPANY PETROLEUM ENGINEERS RYDER SCOTT COMPANY PETROLEUM ENGINEERS 3700, 700 - 2ND STREET, S.W. CALGARY, ALBERTA T2P 2W2 TEL (403) 262-2799 FAX (403) 262-2790 600 17TH STREET, SUITE 1610N DENVER, COLORADO 80202-5416 TEL (303) 623-9147 FAX (403) 623-4258