X0202 3 2004-05-25 0 0001059324 BETA OIL & GAS INC BETA 0001290913 EnCap Equity Fund IV GP, LP 1100 LOUISIANA SUITE 3150 HOUSTON TX 77002 0 0 1 0 Common Stock 15151515 I by Petrohawk Energy LLC Warrants (right to buy) 1.65 2004-05-25 2009-05-25 Common Stock 10000000 I by Petrohawk Energy LLC 8% Convertible Promissory Note 2 2006-05-25 2009-05-25 Common Stock 35000000 I by Petrohawk Energy LLC EnCap Equity Fund IV GP, L.P. disclaims any beneficial ownership of the securities owned by Petrohawk Energy, LLC in excess of its pecuniary interest in such securities. EnCap Equity Fund IV GP, L.P., by EnCap Investments L.P., its general partner, by EnCap Investments GP, L.L.C., its general partner, by /s/ David B. Miller, Senior Managing Director 2004-06-03