1 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby constitutes and appoints Mikel D. Faulkner, Bruce N. Huff, Larry E. Cummings and Karen S. Bustamante, or any of them (with full power of each of them to act alone), his true and lawful attorney-in-fact and agent, with full power of substitution, for him and on his behalf and in his name, place and stead, in any and all capacities, to sign, execute and file a Registration Statement on Form S-3 under the Securities Act of 1933, as amended, and any or all amendments (including without limitation, post-effective amendments and any amendment or amendments increasing the amount of securities for which registration is being sought), with all exhibits and any and all documents required to be filed with respect thereto, with the Securities and Exchange Commission and/or any regulatory authority relating to the registration of 8,878,261 shares of Common Stock, $0.01 par value, of Harken Energy Corporation and such additional shares of Common Stock as the holders of "piggy-back" registration rights may request to be included in such registration statement, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises in order to effectuate the same, as fully and to all intents and purposes as he himself might or could do if personally present, hereby ratifying and confirming all that the said attorneys-in-fact and agents, or any of them, or their substitute or substitutes, may lawfully do or cause to be done. IN WITNESS WHEREOF, this Power of Attorney has been signed by the following persons in the capacities indicated as of the 8th day of April, 2000. NAME CAPACITIES /s/ MIKEL D. FAULKNER ---------------------------- Chairman of the Board, Director and Mikel D. Faulkner Chief Executive Officer (Principal Executive Officer) /s/ BRUCE N. HUFF ---------------------------- President, Chief Financial Officer and Director Bruce N. Huff (Principal Accounting Officer and Principal Financial Officer) /s/ STEPHEN C. VOSS ---------------------------- Executive Vice President, Chief Operating Stephen C. Voss Officer and Director /s/ GARY R. PETERSEN ---------------------------- Director Gary R. Petersen /s/ H. A. SMITH ---------------------------- Director H. A. Smith /s/ DONALD W. RAYMOND ---------------------------- Director Donald W. Raymond /s/ GARY B. WOOD ---------------------------- Director Gary B. Wood /s/ MICHAEL M. AMEEN, JR ---------------------------- Director Michael M. Ameen, Jr. /s/ LARRY AKERS ---------------------------- Director Larry Akers