ABP Southampton

Addax Petroleum Services Limited

Aker Energy As

Amni International Petroleum Development Co Ltd

Anasuria Operating Company Limited

Ancala Midstream

Angola LNG

Assala Energy

Astron Energy

Autoridad del Canal de Panamá

Azinor Catalyst Limited

Baffinland Iron Mines Corporation

Bergesen Worldwide Limited

Cairn Energy PLC

Canada-Nova Scotia Offshore Petroleum Board

CATS North Sea Limited

Chariot Oil & Gas

Chrysaor Limited

City Gas Pte Ltd 

Dana Petroleum PLC

DEA Norge AS

Decipher Energy Limited

Dolphin Energy Limited

Edison SpA

Enauta Energia S.A.

Endeavour Energy (UK) Limited

Environmental Protection Agency (Ghana)

EOG Resources Trinidad Limited

Fairfield Betula Ltd

FAR Limited

Faroe Petroleum (UK) Limited

Foxtrot International LDC

Galoc Production Company W.L.L.

Gassco AS

Genal Energy Petroleum Services Limited

Gibraltar Port Authority

Glencore Exploration Cameroon Ltd

Hengyi Industries Sdn Bhd

Hurricane Exploration PLC

INEOS UK E&P Holdings Ltd

IPC Services BV

Irish Coast Guard (Department of Transport)

Ironbark Zinc Limited

Irving Oil Whitegate Refinery Limited

Ithaca Energy (UK) Limited

Jadestone Energy (Eagle) Pty Ltd

JX Nippon Oil and Gas Exploration Corporation

KMG Systems and Services

Kosmos Energy LLC

KrisEnergy (Asia) Ltd

La Compania de Electricidad de San Pedro de Macoris (CESPM)

Le Ceppol

LLOG Exploration Company LLC

Lundin Services B.V.

Maritime New Zealand

MDC Oil & Gas Holding Company LLC (Mubadala Petroleum)

Melones Oil Terminal Inc.

Neptune Energy

New Age (African Global Energy) Limited

Nigeria LNG Limited 

Nord Stream 2

North Caspian Operating Company (NCOC) B.V.

Northern Oil & Gas Australia Pty Limited

NuStar Terminals NV

Oleoduto Central S.A. (OCENSA)

OMV Exploration and Production GmbH

Ophir Holdings Limited

Oranje-Nassaue Energie UK Limited

Oriental Energy Resources Ltd

Pan African Energy Tanzania Limited

Petroci CI-11 Ltd

Petrofac (Malaysia PM-304) Ltd

Petrofac Mexico S.A. de C.V.

Petrogas E&P Netherlands B.V

Petrojam Limited

Petroleum Company of Trinidad & Tobago Limited (Petrotrin)

Petroterminal de Panama (PTP)

Philodrill Corporation

POSCO INTERNATIONAL Corporation

Premier Oil & Gas Services Limited

Refinadora Costarricense de Petroleo S.A. (RECOPE)

Refineria Dominicana de Petroleo S.A. (Refidomsa)

Reliance Industries Ltd (Oil & Gas Division)

Rijkswaterstaat Zee En Delta

Rubis Energie

Santos Limited

Sapura Exploration & Production (PM) Inc.

Sasol Petroleum Temane Limitada

SEA Hibiscus SDN. BHD.

Siccar Point Energy 

Singapore Lube Park Pte. Ltd

Sociedad de Salvamento y Seguridad Maritima (SASEMAR)

Societe Anonyme de la Raffinerie des Antilles (SARA)

Sol Caribbean Limited

South-East Asia Crude Oil Pipeline Co., Ltd (SEAOP)

Spirit Energy

Staatsolie Maatschappij Suriname NV

Supreme Council for Environment, Bahrain

Suncor Energy Inc

Tailwind Energy Limited

Tailwind Mistral Ltd

Tamarind Taranaki Ltd 

Taq Taq Operating Company Limited (TTPPCO)

TAQA Bratani Limited

Terminales Maritimas Patagonicas S.A. (Termap)

Trident Energy Management Limited

Trinity Exploration & Production Services Limited

Turkiye Petroleum Refineries Corporation (TUPRAS)

Vaalco Energy Inc.

Vedanta Limited

Vermilion REP SAS

Verus Petroleum UK Limited 

Vivo Energy BV Investment

West Indies Oil Company Limited

Wintershall Holding GmbH

YPF S.A.

Zenith Energy Bantry Bay Terminal Limited

Zennor Petroleum Limited