| 3Tec Energy Corporation |
Magnum Hunter Production Inc. |
| AGIP Petroleum Co., Inc. |
Mariner Energy |
| Amerada Hess |
Marlin Energy |
| Apache Corp. |
McMoran Oil & Gas |
| Apex Oil & Gas, Inc. |
MCX |
| Badger Oil Corporation |
Murphy Exploration & Production Co. |
| Blanco Deepwater Services LLC |
Nabors Offshore Corp. |
| Bois D' Arc |
Newfield Exploration Company |
| BP America |
Nippon Oil Exploration |
| Cal Dive, Inc. |
Noble Energy Services |
| Callon Petroleum Company |
North Central Oil Corporation |
| Century Exploration New Orleans, Inc. |
Ocean Energy, Inc. |
| Chevron Environmental Management Co. |
Offshore Specialty Fabricators, Inc. |
| Chevron Pipeline |
Palm Energy Group |
| ChevronTexaco |
Paloma Energy Consultants LP |
| Continental Engineering |
Peregrine Oil & Gas |
| Danos & Curole |
Petsec Energy |
| Devon Energy Corp. |
PetroQuest |
| Diamond Services Inc. |
Pioneer Natural Resources |
| Dominion Exploration & Production, Inc. |
R&B Falcon Drilling |
| Dynegy Midstream Services, LP |
Remington Oil & Gas |
| El Paso Production Co. |
Rowan Drilling |
| Energy Partners, Ltd |
Royal Production |
| Energy XXI |
Seneca Resources |
| Explore Energy |
Shell Pipeline Company, LP |
| Explore Offshore, LLC |
Stolt Comex Seaway (Offshore) |
| ExxonMobil Global Services Co. |
Stolt Offshore, Inc. |
| Fairweather E & P Service |
SubSea 7 |
| Forest Oil Corporation |
Superior Energy Services, Inc. |
| GlobalSantaFe |
Tana Exploration |
| Gryphon Exploration Co. |
Taylor Energy Company |
| Hanover Company, The |
Technip USA |
| Helis Oil & Gas Company |
Transocean |
| Houston Exploration Company |
Twachtman Snyder & Byrd, Inc. |
| J. F. Moore International, Inc. |
Vintage Petroleum |
| J.M. Huber |
W & T Offshore |
| Kerr McGee Oil & Gas Corp. |
Walter Oil & Gas Corp. |
| Legacy Resources |
Westport Resources Corp. |
| LLOG Exploration Company |
XL Systems, LP |
