Aker Marine Contractors US, Inc.
Anglo-Suisse Offshore Partners LLC
Anglo-Suisse Offshore Pipeline Partners
Apex Oil & Gas, Inc.
ATP Oil & Gas Corporation
Axis Onshore, LLC
Badger Oil Corporation
BHP Petroleum (Americas), Inc.
Bisso Marine
Black Water Diving
Bosarge Diving Inc
BP America Production Company
BP Exploration and Production, Inc.
Callon Offshore Production
Canyon Offshore Inc.
Century Exploration New Orleans, Inc.
C-Innovation, LLC
ConocoPhillips Company
Diamond Offshore Drilling, Inc.
Energy Partners, Ltd.
Energy XXI GOM, LLC
Ensco International, Inc.
Enterprise Field Services LLC
Enterprise Product Partners
ESSI Corporation
ExPert Exploration & Production
Global Industries Offshore, L.L.C.
Helis Oil & Gas Company, LLC
Highland Research Associates
Hilcorp Energy Company
Hornbeck Offshore Services
Hunt Oil Company
Hunt Petroleum "AEC" Inc.
Hydro Gulf of Mexico LLc
I.G. Petroleum
Intec Engineering
King, LeBlanc & Bland P.L.L.C.
L-3 Communications
Laborde and Neuner

LEED Petroleum LLC
Mariner Energy Company
Maritech Resources, Inc.
Marlin Coastal LLC
Marlin Energy, LLC
McMoRan Oil & Gas LLC
Newfield Exploration Company
NOAA, Department of Commerce
Noble Energy, Inc.
Onebane, Donahoe, Bernard
Panther Energy Services, Inc.
Pelican Energy
Petrobras
PetroQuest Energy
Petsec Energy, Inc.
Plains Exploration & Production
Pyramid Petroleum, Inc.
Rooster Petroleum, LLC
Saipem America Inc.
Saipem, Inc.
Seabird Exploration FZ-LLC
Shell Pipeline Company LP
Signet Maritime Corporation
SMIT Salvage Americas, Inc.
St. Mary Land & Exploration Co
Stone Energy Corporation
Superior Energy
Superior Offshore International
T. Baker Smith, Inc.
Transcontinental Pipe Line Corp.
Triangle Oil & Gas
Trunkline Gas
Veolia ES Special Services, Inc.
Virgin Offshore U.S.A, Inc.
W & T Offshore
Williams Energy Services
Williams Field Services
Williams Gas Pipeline Company
Woodside Energy (USA) Inc.