| Ministry of Petroleum, Energy and Renewable Energies (Niger) | — | — | 0 | |
| MIP (Macquarie Infrastructure Partners) Seis Ocho Gas | — | — | 0 | |
| Mirage Energy | — | — | 0 | Mirage Energy Corp |
| MIT Pipeline Investment Americas, Inc | — | — | 0 | |
| Mitsubishi UFJ Financial Group Inc | — | — | 0 | |
| Mitsui Global Investment | — | — | 0 | |
| Mittel-Europäische-Gasleitungsgesellschaft mbH & Co. KG | — | — | 0 | |
| Mittelrheinische Erdgastransportleitungsgesellschaft (METG) mbH | — | — | 0 | |
| MM Infrastructure Investments Europe Ltd | — | — | 0 | |
| MoGas Pipeline LLC | — | — | 0 | |
| MOL Group | — | — | 0 | |
| MOL Magyar Olajes Gazipari Nyrt | — | — | 0 | |
| Moldovagaz SA | — | — | 0 | |
| Moldovatransgaz | — | — | 0 | |
| Molgas Energy Holding SL | — | — | 0 | |
| Montenegro Bonus | — | — | 0 | |
| Montenegro Bonus doo | — | — | 0 | |
| Moroccan National Board of Hydrocarbons and Mines | — | — | 0 | |
| Mountain Valley Pipeline LLC | — | — | 0 | |
| Mountaineer Gas Co | — | — | 0 | |
| MPLX LP | — | — | 0 | MPLX |
| Mubadala Investment Co | — | — | 0 | Mubadala Investment Company PJSC |
| Mubadala Petroleum LLC | — | — | 0 | |
| Munich RE AG | — | — | 0 | |
| Mutual Energy Ltd | — | — | 0 | |
| MV Pipelines LLC | — | — | 0 | |
| MVM Group | — | — | 0 | |
| MVM Zrt | — | — | 0 | |
| Myanma Oil and Gas Enterprise | — | — | 0 | |
| Nabucco Gas Pipeline International GmbH | — | — | 0 | |
| Naftiran Intertrade Co | — | — | 0 | |
| Naftogaz of Ukraine JSC | — | — | 0 | |
| NAmerico Energy Holdings LLC | — | — | 0 | |
| Nanning Oil and Gas Transportation Branch of State Pipe Network Group Southwest Pipeline Co Ltd | — | — | 0 | |
| Nanohana Pipeline Co | — | — | 0 | |
| National Fuel Gas Co | — | — | 0 | |
| National Fuel Gas Supply Corp | — | — | 0 | |
| National Gas Co of Trinidad and Tobago | — | — | 0 | National Gas Company of Trinidad and Tobago Ltd |
| National Iranian Gas Company | — | — | 0 | National Iranian Gas Co |
| National Iranian Oil Refining and Distribution Co | — | — | 0 | National Iranian Oil Refining And Distribution Co |
| National Oil and Gas Pipeline Group | — | — | 0 | |
| National Oil Corp | — | — | 0 | |
| National Petroleum and Natural Gas Pipeline Network Corp West-East Gas Transmission Co | — | — | 0 | |
| National Petroleum and Natural Gas Pipeline Network Group Co Ltd | — | — | 0 | |
| National Pipe Network Group Fujian Pipe Network Co Ltd | — | — | 0 | |
| National Pipe Network Group Gansu Natural Gas Pipe Network Co Ltd | — | — | 0 | |
| National Pipe Network Group Guizhou Pipe Network Co Ltd | — | — | 0 | |
| National Pipe Network Group North China Natural Gas Pipeline Co Ltd | — | — | 0 | |
| National Pipe Network Group North Pipeline Co Ltd | — | — | 0 | |
| National Pipe Network Group Southwest Pipeline Co Ltd | — | — | 0 | |
| National Pipe Network Group Tianjin Natural Gas Pipeline Co Ltd | — | — | 0 | |
| National Pipe Network Group United Pipeline Co Ltd | — | — | 0 | |
| National Pipeline Network Group Northern Pipeline Co Ltd | — | — | 0 | National Pipeline Network Group Northern Pipeline Co., Ltd. |
| National Pipeline Network Group Zhejiang Natural Gas Pipeline Network Co Ltd | — | — | 0 | |
| National Social Security Administration (Argentina) | — | — | 0 | |
| NaTran | — | — | 0 | |
| Natural Gas Pipeline Co of America LLC (NGPL) | — | — | 0 | |
| Naturgy | — | — | 0 | |
| Naturgy Chile Gas Natural SA | — | — | 0 | |
| NEL Gastransport GmbH | — | — | 0 | |
| NEO Energy Petroleum Ltd | — | — | 0 | |
| Nepal Oil Corp | — | — | 0 | Nepal Oil Corp Ltd |
| Neptune Energy Holding Netherlands BV | — | — | 0 | |
| NER JSC Skopje | — | — | 0 | |
| Net4Gas | — | — | 0 | |
| Net4Gas Holdings sro | — | — | 0 | |
| NetConnect Germany | — | — | 0 | |
| NETRA GmbH Norddeutsche Erdgas Transversale & Co KG | — | — | 0 | |
| Netz Niederösterreich GmbH | — | — | 0 | |
| New Jersey Resources Corp | — | — | 0 | New Jersey Resources |
| New York Stock Exchange (NYSE) | — | — | 0 | |
| NewMedEnergy | — | — | 0 | |
| NextEra Energy | — | — | 0 | NextEra Energy Inc |
| Nicor Gas | — | — | 0 | |
| Niger Ministry of Petroleum, Energy and Renewable Energies | — | — | 0 | |
| Nigerian Agip Oil Co Ltd | — | — | 0 | |
| Nigerian Gas Co | — | — | 0 | |
| Nigerian National Petroleum Corp | — | — | 0 | |
| Ningqiang Xuri New Energy Co Ltd | — | — | 0 | |
| Ningxia Hanas Gas Group Co Ltd | — | — | 0 | |
| Ningxia Master Energy Group Co Ltd | — | — | 0 | |
| Ningxia Xinyan Energy Technology Co Ltd | — | — | 0 | |
| Nippon Oil Exploration (Myanmar) | — | — | 0 | |
| Noble Energy | — | — | 0 | |
| NOMAGAS Skopje | — | — | 0 | |
| Noordgastransport B.V | — | — | 0 | |
| Nord Stream AG | — | — | 0 | |
| Nordrheinische Erdgastransportleitungsgesellschaft mbH & Co. KG | — | — | 0 | |
| Nordsøfonden A/S | — | — | 0 | |
| Norilsk Nickel Mining and Metallurgical Company PJSC | — | — | 0 | |
| Norilsktransgaz JSC | — | — | 0 | |
| North Baja Pipeline LLC | — | — | 0 | |
| North China Petroleum BUREAU of SINOPEC | — | — | 0 | |
| North Sea Infrastructure AS | — | — | 0 | |
| North Slope Borough | — | — | 0 | |
| Northern Natural Gas | — | — | 0 | |
| Northern New England Investment Co | — | — | 0 | |
| NOVA Gas Transmission Ltd | — | — | 0 | |
| NOVAGOLD Resources Inc | — | — | 0 | |
| Nowega | — | — | 0 | |
| NSMP Operations Ltd | — | — | 0 | |
| Nuclear Damage Compensation and Decommissioning Facilitation Corp | — | — | 0 | |
| Numaligarh Refinery Ltd | — | — | 0 | |
| NW Infrastructure Ltd Partnership | — | — | 0 | |
| NYSE-New York Stock Exchange | — | — | 0 | |
| Oando PLC | — | — | 0 | |
| Oberbank AG | — | — | 0 | |
| Occidental Petroleum | — | — | 0 | Occidental Petroleum Corp |
| Office National des Hydrocarbures et des Mines | — | — | 0 | |
| Oil Projects Co | — | — | 0 | |
| OKEA AS | — | — | 0 | |
| OKEA ASA | — | — | 0 | |
| ONE-Dyas E&P Ltd | — | — | 0 | |
| ONEOK Inc | — | — | 0 | |
| ONGC Petro Additions Ltd | — | — | 0 | |
| Ontario Teachers Pension Plan Board | — | — | 0 | |
| ONTRAS | — | — | 0 | |
| OÖ Landesholding GmbH | — | — | 0 | |
| OPAL Gastransport GmbH | — | — | 0 | |
| Opatho Gas Trans LLC | — | — | 0 | |
| Open Grid Europe | — | — | 0 | |
| OQ SAOC | — | — | 0 | |
| OQGN | — | — | 0 | |
| Origin Energy Ltd | — | — | 0 | |
| Orken Capital Fund LLC | — | — | 0 | |
| Ørsted A/S | — | — | 0 | |
| Ørsted AS | — | — | 0 | |
| Otaki Gas Co Ltd | — | — | 0 | |
| other | — | — | 0 | |
| Otog Qi Changmeng Ranqi Co Ltd | — | — | 0 | |
| Palisade Investment Partners Ltd | — | — | 0 | |
| Pampa Energia SA | — | — | 0 | |
| Pan American Energy | — | — | 0 | |
| Panhandle Eastern | — | — | 0 | |
| Pars Aryan Investment Co | — | — | 0 | |
| Partex | — | — | 0 | |
| Partners Group AG | — | — | 0 | |
| Pasargad Arzesh Afarinan Co | — | — | 0 | |
| Pasargad Energy Development Co | — | — | 0 | |
| Paso Norte Pipeline Group | — | — | 0 | |
| PD Alternative Investments NL ApS | — | — | 0 | |
| Pearl Oil Sebuku Ltd | — | — | 0 | |
| Pecos Trail Pipeline Co | — | — | 0 | |
| Pembina Pipeline | Canada | PPL (TSX) | 0 | Pembina · Pembina Pipeline Corporation · Pembina Pipeline Corp |
| Pemex | — | — | 0 | |
| PennEast Pipeline Co | — | — | 0 | |
| Permian Highway Pipeline LLC | — | — | 0 | |
| Pertamina | — | — | 0 | |
| Peru LNG | — | — | 0 | |
| Perusahaan Gas Negara | — | — | 0 | |
| Perusahaan Listrik Negara | — | — | 0 | |
| Petro Ventures (Romania) BV | — | — | 0 | |
| Petro Ventures Resources | — | — | 0 | |
| Petrobras | — | — | 0 | |
| Petrochina Beijing Gas Pipeline Co Ltd | — | — | 0 | |
| PetroChina Dagang Oilfield Branch | — | — | 0 | |
| PetroChina Kunlun Gas and Electricity Co Ltd | — | — | 0 | |
| PetroChina Kunlun Gas Co Ltd | — | — | 0 | |
| PetroChina Kunlun Gas Co Ltd Guizhou Branch | — | — | 0 | |
| PetroChina Natural Gas Sales Jiangsu Branch | — | — | 0 | |
| Petrochina Shandong Natural Gas Pipeline Ltd | — | — | 0 | |
| PetroChina Xinjiang Oilfield Oil and Gas Storage and Transportation Branch | — | — | 0 | |
| Petroci | — | — | 0 | |
| Petróleos del Perú - PETROPERÚ SA | — | — | 0 | |
| Petróleos Paraguayos | — | — | 0 | Petróleos Paraguayos SA |
| Petroperú | — | — | 0 | |
| PetroVietnam | — | — | 0 | |
| PFM Capital Inc | — | — | 0 | |
| PG&E Corp | — | — | 0 | |
| PGNiG Ustream Norway AS | — | — | 0 | |
| Phillips 66 | — | — | 0 | |
| PIMCO | — | — | 0 | |
| Pingliang Litong Natural Gas Co Ltd | — | — | 0 | |
| Pinnacle Investment Management Ltd | — | — | 0 | |
| PipeChina | — | — | 0 | |
| PipeChina Guangdong Natural Gas Pipeline Company | — | — | 0 | |
| Plinacro doo | — | — | 0 | |
| Plinacro Ltd | — | — | 0 | |
| Plinhold doo | — | — | 0 | |
| Plinovodi doo | — | — | 0 | |
| PNOC Exploration Corp | — | — | 0 | |
| Port Arthur Pipeline LLC | — | — | 0 | |
| Power and Water Corp | — | — | 0 | |
| Power Assets Holdings Ltd | — | — | 0 | |
| Power International Holding | — | — | 0 | |
| Power Sector Assets and Liabilities Management Corp (PSALM) | — | — | 0 | Power Sector Assets and Liabilities Management Corp |
| Premier Oil UK Ltd | — | — | 0 | |
| Premier Transmission | — | — | 0 | Premier Transmission Holdings Ltd |
| Prime Infrastructure Capital Inc | — | — | 0 | |
| Producers Midstream | — | — | 0 | |
| Profin Consulting | — | — | 0 | |
| Progas Investment Group | — | — | 0 | |
| Project Tarpon Holdco LLC | — | — | 0 | |
| Promigas | — | — | 0 | |
| Promioriente | — | — | 0 | |
| Promotora de Gases del Sur S.A E.S.P | — | — | 0 | |
| Province of Quebec | — | — | 0 | |
| PT Bakrie & Brothers Tbk | — | — | 0 | |
| PT Kalimantan Jawa Gas | — | — | 0 | |
| PT Permata Graha Nusantara | — | — | 0 | |
| PT Pertamina (Persero) | — | — | 0 | |
| PT Pertamina Gas | — | — | 0 | |
| PT Pertamina Hulu Energi | — | — | 0 | |
| PT Pertamina Pedeve | — | — | 0 | |
| PT PLN (Persero) | — | — | 0 | |
| PTT Exploration and Production | — | — | 0 | |
| PTT Exploration and Production PCL | — | — | 0 | |
| PTT Public Co Ltd | — | — | 0 | |
| Publigaz SA | — | — | 0 | |
| Q-LNG Holdings LLC | — | — | 0 | |
| Qatar Investment Authority | — | — | 0 | |
| QazaqGaz | — | — | 0 | |
| Qianxinan Prefecture People's Government State-owned Assets Supervision and Administration Commission | — | — | 0 | |
| Qianxinan Sunshine Natural Gas Development Co Ltd | — | — | 0 | |
| QIC Ltd | — | — | 0 | |
| Qinghai Heze Gas Co Ltd | — | — | 0 | |
| Qingyang Yongqing Natural Gas Group Co Ltd | — | — | 0 | |
| Qinjin Natural Gas Co Ltd | — | — | 0 | |
| Queensland Investment Corp | — | — | 0 | |
| Qujing Nengtou Natural Gas Industry Development Co Ltd | — | — | 0 | |
| Raiffeisenlandesbank Oberösterreich AG | — | — | 0 | |
| Rainbow Energy Center LLC | — | — | 0 | |
| RAK Gas LLC | — | — | 0 | |
| RAKGAS | — | — | 0 | |
| Redes Energéticas Nacionais SGPS SA | — | — | 0 | |
| Redexis Gas | — | — | 0 | |
| Region of Sardinia | — | — | 0 | |
| Remsa (Recursos Energéticos y Mineros de Salta) | — | — | 0 | |
| REN | — | — | 0 | |
| REN Gasodutos SA | — | — | 0 | |
| Repsol Exploração Brasil Ltda | — | — | 0 | |
| Repsol Sinopec | — | — | 0 | |
| Republic of Sakha | — | — | 0 | |
| Retail Employees Superannuation Trust | — | — | 0 | |
| RGC Resources Inc | — | — | 0 | |
| RH Energytrans | — | — | 0 | |
| Rheinbund LLC | — | — | 0 | |
| Rifkamp BV | — | — | 0 | |
| RIK Plus JSC | — | — | 0 | |
| Rio Bravo Pipeline Co LLC | — | — | 0 | |
| Rio Tinto Group | — | — | 0 | |
| Riverstone Holdings | — | — | 0 | |
| Rockies Express Pipeline, LLC | — | — | 0 | |
| Rohöl-Aufsuchungs AG | — | — | 0 | |
| Royal Bank of Canada | — | — | 0 | |
| Ruby Pipeline LLC | — | — | 0 | |
| RusGazDobycha JSC | — | — | 0 | |
| Sabal Trail Transmission LLC | — | — | 0 | |
| SAGE North Sea Ltd | — | — | 0 | |
| Sakhatransneftegaz JSC | — | — | 0 | |
| Salzburg AG für Energie, Verkehr und Telekommunikation AG | — | — | 0 | |
| Samruk-Kazyna SWF JSC | — | — | 0 | |
| SAS Trustee Corp | — | — | 0 | |
| SaskEnergy | — | — | 0 | SaskEnergy Inc |
| SaskWorks Venture Fund Inc | — | — | 0 | |
| Sasol | — | — | 0 | |
| Saudi Arabian Oil Co | — | — | 0 | |
| Saudi Aramco | — | — | 0 | |
| Savannah Energy PLC | — | — | 0 | |
| SCANA | — | — | 0 | |
| SCANA ASA | — | — | 0 | |
| SEA Gas | — | — | 0 | |
| SEGAS | — | — | 0 | |
| SEMCO Energy | — | — | 0 | |
| Sempra Energy | — | — | 0 | |
| Sempra Infrastructure Partners LP | — | — | 0 | |
| Services Industriels de Genève | — | — | 0 | |
| Seven Energy | — | — | 0 | |
| Seven Group Holdings | — | — | 0 | Seven Group Holdings Ltd |
| SGN Natural Gas | — | — | 0 | |
| SGSP (Australia) Assets Pty Ltd | — | — | 0 | |
| Shaanxi Meineng Clean Energy Corp,Ltd | — | — | 0 | Shaanxi Meineng Clean Energy Corp Ltd |
| ShaanXi Provincial Natural Gas Co Ltd | — | — | 0 | Shaanxi Provincial Natural Gas Co Ltd |
| Shandong Bairong Natural Gas Technology Co Ltd | — | — | 0 | |
| Shandong Huanya International Energy Distribution Center Co Ltd | — | — | 0 | |
| Shandong Huihui Gas Co Ltd | — | — | 0 | |
| Shandong Lurun Natural Gas Co Ltd | — | — | 0 | |
| Shandong Natural Gas Pipeline Co Ltd | — | — | 0 | |
| Shandong Port Yantai Port Group Co Ltd | — | — | 0 | |
| Shandong Southeast Pipeline Natural Gas Co Ltd | — | — | 0 | |
| Shanghai Gas (Group) Co Ltd | — | — | 0 | |
| Shanghai Natural Gas Pipeline Network Co Ltd | — | — | 0 | Shanghai Natural Gas Pipeline Network Co., Ltd. |
| Shanghai Petroleum Co Ltd | — | — | 0 | |
| Shanxi Gas Industry Group Co Ltd | — | — | 0 | |
| Shanxi Gemeng International Energy Group Co Ltd | — | — | 0 | |
| Shanxi Guohua Energy Co Ltd | — | — | 0 | |
| Shanxi Guohua Kesi Gas Co Ltd | — | — | 0 | |
| Shanxi Guoxin Energy Corp Ltd | — | — | 0 | Shanxi Guoxin Energy Co Ltd |
| Shanxi Guoxin Energy Development Group Co Ltd | — | — | 0 | |
| Shanxi Guoxing Coalbed Methane Transmission and Distribution Co Ltd Jiaokou Branch | — | — | 0 | |
| Shanxi Huaxin Natural Gas Eastern Pipeline Network Co Ltd | — | — | 0 | |
| Shanxi International Energy Group | — | — | 0 | |
| Shanxi International Energy Group Gasification Investment Management Co Ltd | — | — | 0 | |
| Shanxi Jinlian Real Estate Development Co Ltd | — | — | 0 | |
| Shanxi Linxian Guoxin Gas Co Ltd | — | — | 0 | |
| Shanxi Natural Gas Co Ltd | — | — | 0 | |
| Shanxi Provincial Department of Finance | — | — | 0 | |
| Shanxi Sanjin New Energy Development Co Ltd | — | — | 0 | |
| Shanxi Santong Natural Gas Co Ltd | — | — | 0 | |
| Shanxi State-Owned Capital Investment and Operation Co Ltd | — | — | 0 | |