Company Groups

• A J LUCAS GROUP
• ABAN OFFSHORE
• AKER BP ASA
• ALTWOOD PETROLEUM
• ANGUS ENERGY
• ANTRIM ENERGY INC.
• APACHE CORPORATION
• ATHENA EXPLORATION LIMITED
• AURORA PETROLEUM
• BP EXPLORATION
• BRIDGE PETROLEUM GROUP
• BRITNRG LIMITED
• BROCKHAM CAPITAL LIMITED
• BURGATE E&P
• CALENERGY GAS (HOLDINGS)
• CENTRICA STORAGE HOLDINGS
• CHEVRON CORPORATION
• CNOOC INTERNATIONAL
• CNR INTERNATIONAL
• CONOCOPHILLIPS
• CUADRILLA RESOURCES
• DANA PETROLEUM LIMITED
• DELTIC ENERGY
• DESS EXPLORATION CONSULTING LIMITED
• DNO NORTH SEA
• ECORP INTERNATIONAL
• ENERGEAN PLC
• ENERGYPATHWAYS UK HOLDINGS
• ENI UK LIMITED
• ENQUEST PLC
• EP UK INVESTMENTS
• EQUINOR ASA
• EUROPA OIL AND GAS
• EVERARD ENERGY
• EXXONMOBIL INTERNATIONAL
• FCM TRUST
• FINDER ENERGY PTY
• GAZPROM INTERNATIONAL
• HAGUE AND LONDON OIL
• HARBOUR ENERGY PLC
• HARTSHEAD RESOURCES LTD
• HARVESTER ENERGY (UK) LIMITED
• HEYCO ENERGY GROUP
• HIBISCUS PETROLEUM
• HORIZON ENERGY PARTNERS
• HUTTON ENERGY LIMITED
• I3 ENERGY
• INEOS INDUSTRIES
• INFINIS ENERGY
• IOG PLC
• ITHACA ENERGY
• JAPAN PETROLEUM EXPLORATION CO.
• JERSEY OIL AND GAS PLC
• KISTOS PLC
• MITSUBISHI CORPORATION
• MONTROSE INDUSTRIES
• NEO ENERGY GROUP
• NOBEL UPSTREAM
• NORTH SEA NATURAL RESOURCES
• ONE-DYAS
• ONSHORE OILFIELD SERVICES LIMITED
• ORCADIAN ENERGY
• PAINTED WOLF RESOURCES
• PARKMEAD GROUP PLC
• PERENCO OIL & GAS
• PETROGAS INTERNATIONAL
• PING PETROLEUM LIMITED
• PRAX GROUP
• RAPID OIL PRODUCTION
• RATHLIN ENERGY
• REABOLD RESOURCES
• REPSOL RESOURCES UK
• RIGON ENERGY
• ROCKROSE ENERGY
• SCOTTISH POWER UK PLC
• SERICA ENERGY
• SHELL PLC
• SOJITZ CORPORATION
• SOLITON RESOURCES LIMITED
• SOUTH WESTERN ENERGY LIMITED
• SPIRIT ENERGY
• STAR ENERGY GROUP PLC
• STELINMATVIC INDUSTRIES
• TANGRAM ENERGY LTD
• TAQA EUROPA B.V.
• TERRAIN ENERGY
• TETRA ENERGIES
• THE CHATSWORTH ESTATES COMPANY
• THIRD ENERGY HOLDINGS
• TOTALENERGIES UPSTREAM UK LIMITED
• TRIANGLE ENERGY GLOBAL
• TULLOW UK
• UK OIL & GAS PLC
• UNION JACK OIL PLC
• UNITED OIL & GAS PLC
• VELOX POWER
• WALDORF PRODUCTION
• WINTERSHALL NOORDZEE
• YLEM GROUP LIMITED