| Unknown |
| ANADARKO PETROLEUM CORPORATION |
| ANADARKO US OFFSHORE LLC |
| ANKOR ENERGY LLC |
| APACHE CORPORATION |
| APACHE DEEPWATER LLC |
| APACHE OIL CORPORATION |
| ARENA OFFSHORE LP |
| ATLANTIC RICHFIELD COMPANY |
| ATP OIL & GAS CORPORATION |
| B T OPERATING CO |
| BANDON OIL AND GAS LP |
| BARCOO EXPLORATION INC |
| BERYL RESOURCES LP |
| BP EXPLORATION & OIL INC |
| BP EXPLORATION & PRODUCTION IN |
| BP PIPELINES (NORTH AMERICA) I |
| BURLINGTON RESOURCES OFFSHORE |
| CALLON PETROLEUM COMPANY |
| CALLON PETROLEUM OPERATING COM |
| CEDAR GAS COMPANY |
| CENTURY EXPLORATION NEW ORLEAN |
| CENTURY OFFSHORE MANAGEMENT |
| CHANDELEUR PIPE LINE LLC |
| CHEVRON PIPE LINE COMPANY |
| CHEVRON TEXACO CORP. |
| CHEVRON USA INC |
| CONOCO INC |
| CRIMSON GULF LLC |
| CRONUS OFFSHORE INC |
| CSP PIPELINE LLC |
| DAUPHIN ISLAND GATHERING PARTN |
| DAUPHIN ISLAND GATHERING SYSTE |
| DEEP GULF ENERGY II LLC |
| DESTIN PIPELINE COMPANY LLC |
| DEVON SFS OPERATING INC |
| DOMINION EXPLORATION & PRODUCT |
| EL PASO PRODUCTION COMPANY |
| ENBRIDGE OFFSHORE (GAS GATHERI |
| ENERGY RESOURCE TECHNOLOGY GOM |
| ENERGY RESOURCE TECHNOLOGY INC |
| ENERGY XXI GOM LLC |
| ENI PETROLEUM US LLC |
| ENI US OPERATING CO INC |
| ENTERPRISE FIELD SERVICES LLC |
| ENVEN ENERGY VENTURES LLC |
| EOG RESOURCES INC |
| EP ENERGY E&P COMPANY L P |
| EP ENERGY MANAGEMENT LLC |
| EPL OIL & GAS INC |
| EXXON MOBIL CORPORATION |
| FAIRWAYS OFFSHORE EXPLORATION |
| FIELDWOOD ENERGY LLC |
| FIELDWOOD ENERGY OFFSHORE LLC |
| FIELDWOOD ENERGY SP LLC |
| FIELDWOOD SD OFFSHORE LLC |
| FOREST OIL CORPORATOIN |
| FREEPORT MCMORAN ENERGY LLC |
| FREEPORT MCMORAN OIL & GAS |
| FREEPORT MCMORAN OIL & GAS LLC |
| GOM SHELF LLC |
| GULF SOUTH PIPELINE COMPANY LP |
| GULFSTREAM NATURAL GAS SYSTEM |
| HALL-HOUSTON OIL COMPANY |
| HC RESOURCES LLC |
| HESS CORPORATION |
| HIGH POINT GAS GATHERING LLC |
| HUNT OIL COMPANY |
| JX NIPPON OIL EXPLORATION USA |
| KNIGHT RESOURCES LLC |
| LEGACY RESOURCES CO LP |
| LLOG EXPLORATION COMPANY |
| LLOG EXPLORATION OFFSHORE LLC |
| M21K LLC |
| MAGNUM HUNTER PRODUCTION INC |
| MARINER ENERGY INC |
| MARITECH RESOURCES INC |
| MARUBENI OIL & GAS USA INC |
| MCMORAN OIL & GAS LLC |
| MERIT ENERGY COMPANY LLC |
| MILLENNIUM OFFSHORE GROUP INC |
| MOBIL CORPORATION |
| MOBIL OIL EXPLORATION & PRODUC |
| MURPHY EXPLORATION & PRODUCTIO |
| NCX COMPANY INC |
| NEWFIELD EXPLORATION COMPANY |
| NEXEN PETROLEUM OFFSHORE USA I |
| NEXEN PETROLEUM USA INC |
| NOBLE ENERGY INC |
| OFFSHORE SHELF LLC |
| OXY USA INC |
| PALACE OPERATING COMPANY |
| PALM ENERGY OFFSHORE LLC |
| PANTHER OPERATING COMPANY LLC |
| PETRO VENTURES INC |
| PETSEC ENERGY INC |
| PROVIDENCE RESOURCES GOM NO 2 |
| PRS OFFSHORE LP |
| RENAISSANCE OFFSHORE LLC |
| ROYAL PRODUCTION COMPANY INC |
| SAMSON CONTOUR ENERGY E&P LLC |
| SENECA RESOURCES CORPORATION |
| SHELL EXPLORATION AND PRODUCTI |
| SHELL OFFSHORE INC |
|
| SHELL OFFSHORE INC. |
| SHELL OIL COMPANY |
| SHELL PIPE LINE CORPORATION |
| SHELL PIPELINE COMPANY LP |
| SOUTHERN NATURAL GAS COMPANY, |
| STATOIL USA E&P INC. |
| STONE ENERGY CORPORATION |
| TANA EXPLORATION COMPANY LLC |
| TDC ENERGY CORPORATION |
| TENGASCO INC |
| TENNESSEE GAS PIPELINE CO |
| TEXAS EASTERN TRANSMISSION LP |
| TORCH ENERGY SERVICES INC |
| TOTAL E&P USA INC |
| TRANSCONTINENTAL GAS PIPE LINE |
| UNION OIL & GAS OF LOUISIANA |
| UNION OIL COMPANY OF CALIFORNI |
| VASTAR RESOURCES INC. |
| VINTAGE PETROLEUM INC |
| W & T ENERGY VI LLC |
| W & T OFFSHORE INC |
| W & T OFFSHORE LLC |
| WALTER OIL & GAS CORPORATION |
| WHITE OAK OPERATING COMPANY L |
| WILLIAMS FIELD SERVICES - GULF |
| WILLIAMS OIL GATHERING LLC |
| XTO ENERGY INC |
| XTO OFFSHORE INC |
