| Amerada Hess Corporation |
www.hess.com |
| Anadarko Petroleum Corporation |
www.anadarko.com |
| Apache Corporation |
www.apachecorp.com |
| Associated Resources, Inc. |
www.landmen.com |
| Barrett Resources Corporation |
www.brr.com |
| BP/Amoco Production Company |
www.bpamoco.com |
| Chevron Texaco |
www.chevrontexaco.com |
| CIMA Energy |
www.cima-energy.com |
| Conoco Inc. |
www.conoco.com |
| Devon Energy Corporation |
www.dvn.com |
| El Paso |
www.elpaso.com |
| Energen Corporation |
www.energen.com |
| EOG Resoruces, Inc. |
www.eogresources.com |
| Exxon Company USA |
www.exxon.com |
Flying J Oil & Gas, Inc.
Subsidiaries
Big West Oil & Gas, Inc.
Big West Oil, LLC |
www.flyingj.com |
| Helmerich & Payne, Inc. |
www.hpinc.com |
| Hunt Oil |
www.huntoil.com |
| Kerr-McGee Corporation |
www.kerr-mcgee.com |
| Link Energy LLC |
www.linkenergy.com |
| Marathon Oil Corporation |
www.marathon.com |
| Mobil Oil Corporation |
www.mobil.com |
| Paradigm Technologies, Inc. |
www.paradigmtech.com |
| Phillips 66 Company |
www.phillips66.com |
| Phillips Petroleum Company |
www.phillips66.com |
| Production Gathering Compny, LLC (PGC) |
www.pgcgas.com |
| Russell T. Rudy Energy, LLC |
www.oilandgasminerals.com |
| Shell Western E & P Inc. |
www.shell.com |
| Southwest Petroleum
Company |
www.soutwestpetroleum.com |
| Sunoco Inc. |
www.sunocoinc.com |
| Union Oil Company of California |
www.unocal.com |
| Williams Energy Group |
www.williams.com |
| Williams Production Company |
www.williams.com |
| XTO Energy |
www.xtoenergy.com |
