| UNION PACIFIC RESOURCES GROUP INC | Dec 31 |
| UNION PACIFIC RESOURCES INC | Dec 31 |
| UNION TEXAS EAST KALIMANTAN LTD | Dec 31 |
| UNION TEXAS INTERNATIONAL CORP | Dec 31 |
| UNION TEXAS PETROLEUM HOLDINGS INC | Dec 31 |
| UNION TEXAS PRODUCTS CORP | Dec 31 |
| Uniontown Energy Inc. | Oct 31 |
| UNISTAR INC | Dec 31 |
| UNIT CORP | Dec 31 |
| United American Petroleum Corp. | Dec 31 |
| UNITED MERIDIAN CORP | Dec 31 |
| UNITED RAYORE GAS LTD | Dec 31 |
| United Refining Energy Corp | Aug 31 |
| UNIVERSAL ENERGY CORP. | |
| UNIVERSAL PROPERTY DEVELOPMENT & ACQUISITION CORP | Dec 31 |
| Universe Energy Partners, LP | Dec 31 |
| UNOCAL CORP | Sep 1 |
| UPR CAPITAL CO | Dec 31 |
| UPRG CAPITAL TRUST I | Dec 31 |
| UPRG CAPITAL TRUST II | Dec 31 |
| UPRG CAPITAL TRUST III | Dec 31 |
| Ute Energy Upstream Holdings LLC | Dec 31 |
| VADDA ENERGY CORP | Dec 31 |
| VALERO NATURAL GAS PARTNERS L P | Dec 31 |
| Vantage Energy Inc. | Dec 31 |
| VASTAR RESOURCES INC | Dec 31 |
| Velocity Energy Inc. | Dec 31 |
| VENEZUELAN NATIONAL PETROLEUM CO | Dec 31 |
| Venoco Acquisition Company, L.P. | Dec 31 |
| Venoco, Inc. | Dec 31 |
| VENUS EXPLORATION INC | Dec 31 |
| Veren Inc. | Dec 31 |
| VICTORY CLEAN ENERGY, INC. | Dec 31 |
| VIKING ENERGY GROUP, INC. | Dec 31 |
| VINE ENERGY INC. | Dec 31 |
| VINTAGE PETROLEUM INC | Dec 31 |
| VISA INDUSTRIES OF ARIZONA INC | Dec 31 |
| VISION ENERGY INC | Dec 31 |
| Vital Energy, Inc. | Dec 31 |
| VNOM Sub, Inc. | Dec 31 |
| VPP GAS, Inc | Dec 31 |
| VTEX ENERGY INC | Apr 30 |
| WARREN RESOURCES INC | Dec 31 |
| WASTECH, INC. | Dec 31 |
| WEBB IVAN WAYNE | Dec 31 |
| WEBSTER JEFFREY | Apr 30 |
| Wentworth Energy, Inc. | Dec 31 |
| WESTERN OIL SANDS INC | Dec 31 |
| WesternZagros Resources Ltd. | Dec 31 |
| WESTPORT RESOURCES CORP | Dec 31 |
| West Texas Resources, Inc. | |
| WETTSTEIN WIELAND | Dec 31 |
| WHEELER CARRIE | Dec 31 |
| Whiting Holdings LLC | Dec 31 |
| WHITING OIL & GAS CORP | Dec 31 |
| WHITING PROGRAMS INC | Dec 31 |
| WHITING USA TRUST I | Dec 31 |
| Whiting USA Trust II | Dec 31 |
| WHOLEHEALTH PRODUCTS, INC. | Aug 31 |
| WICHITA RIVER OIL CORP/DE/ | Dec 31 |
| WILEY KENNETH P | Dec 31 |
| WILLIAMS CAPITAL I | Dec 31 |
| WILLIAMS CAPITAL II | Dec 31 |
| WILLIAMS DELAWARE CAPITAL I | Dec 31 |
| WILLIAMS DELAWARE CAPITAL II | Dec 31 |
| WILLIAMS HOLDINGS OF DELAWARE INC | Dec 31 |
| WILON ENERGY GROUP INC | |
| WILON RESOURCES INC | |
| WINDSOR ENERGY CORP | Dec 31 |
| Windsor Energy Resources, Inc. | Dec 31 |
| WISER OIL CO | Dec 31 |
| WOLAS FAMILY PARTNERSHIP | Dec 31 |
| Woodgate Energy Corp | Dec 31 |
| WORTHEY MARK | Dec 31 |
| WORTHINGTON ENERGY, INC. | Dec 31 |
| WPX ENERGY, INC. | Dec 31 |
| XAVIER CORP | Dec 31 |
| XCL LTD | Dec 31 |
| XR Energy Inc. | Dec 31 |
| XTO ENERGY INC | Dec 31 |
| YATES DOUGLAS D | Apr 30 |
| YPF ACQUISITION CORP | Dec 31 |
| Yuma Energy, Inc. | Dec 31 |
| Yuma Energy, Inc. | Dec 31 |
| ZaZa Energy Corp | Dec 31 |
| Zodiac Exploration Corp. | Dec 31 |
| ZONZIA MEDIA, INC. | Dec 31 |