| S. No. | Company | Patent Count | Headquarter |
| 1 | Sinopec Group | 71727 | China |
| 2 | Saudi Arabian Oil | 40388 | Saudi Arabia |
| 3 | Total Energies | 14278 | France |
| 4 | Baker Hughes | 7302 | USA |
| 5 | Conocophillips | 5367 | USA |
| 6 | Kinetic | 5105 | USA |
| 7 | China National Offshore Oil | 4075 | China |
| 8 | Sasol | 3128 | South Africa |
| 9 | Petrobras | 3051 | Brazil |
| 10 | Shv Holdings | 2527 | Netherlands |
| 11 | ENN Energy Holdings | 2352 | China |
| 12 | Halliburton | 1914 | USA |
| 13 | Aker Solutions | 1584 | Norway |
| 14 | Korea Gas | 1404 | South Korea |
| 15 | Tenaris | 1393 | Luxembourg |
| 16 | Beijing Enterprises Holdings | 1369 | China |
| 17 | China Gas | 1288 | China |
| 18 | Phillips 66 | 1172 | USA |
| 19 | Indian Oil | 1151 | India |
| 20 | Repsol | 1098 | Spain |
| 21 | Inpex | 1079 | Japan |
| 22 | ENN Natural Gas | 1049 | China |
| 23 | Oxy | 948 | USA |
| 24 | Kunlun Energy | 883 | Hong Kong |
| 25 | Petronas | 563 | Malaysia |
| 26 | Marathon Petroleum | 456 | USA |
| 27 | Oil & Natural Gas | 442 | India |
| 28 | Cenovus Energy | 394 | Canada |
| 29 | Hindustan Petroleum | 388 | India |
| 30 | Woodside Energy | 376 | Australia |
| 31 | YPF | 288 | Argentina |
| 32 | Profrac | 287 | USA |
| 33 | Devon Energy | 256 | USA |
| 34 | Crescent Point Energy | 255 | Canada |
| 35 | Imperial Oil Ltd | 242 | Canada |
| 36 | Energy Transfer | 224 | USA |
| 37 | Amec Foster Wheeler | 215 | United Kingdom |
| 38 | PKN Orlen | 196 | Poland |
| 39 | Bharat Petroleum | 194 | India |
| 40 | Verbio | 177 | Germany |
| 41 | Fairmount Santrol | 164 | USA |
| 42 | Worley | 164 | Australia |
| 43 | Pertamina | 153 | Indonesia |
| 44 | Williams Companies | 152 | USA |
| 45 | Ptt | 133 | Thailand |
| 46 | Excelerate Energy | 131 | USA |
| 47 | OMV | 119 | Austria |
| 48 | S-Oil | 100 | South Korea |
| 49 | Apache | 93 | USA |
| 50 | Técnicas Reunidas | 90 | Spain |
| 51 | Transneft | 66 | Russia |
| 52 | Oil Refineries | 61 | Israel |
| 53 | IRPC | 52 | Thailand |
| 54 | Eog Resources | 50 | USA |
| 55 | Lukoil | 46 | Russia |
| 56 | Ampol | 45 | Australia |
| 57 | Ovintiv | 45 | USA |
| 58 | Ovintiv Canada | 45 | Canada |
| 59 | Rosneft | 44 | Russia |
| 60 | Tourmaline Oil | 42 | Canada |
| 61 | Perusahaan Gas Negara | 40 | Indonesia |
| 62 | Kinder Morgan | 35 | USA |
| 63 | Uniper | 35 | Germany |
| 64 | PTTEP | 30 | Thailand |
| 65 | Socar | 30 | Azerbaijan |
| 66 | Pioneer Natural Resource | 29 | USA |
| 67 | Tullow Oil | 28 | United Kingdom |
| 68 | Oil India | 26 | India |
| 69 | Solaris Oilfield | 26 | USA |
| 70 | Valero Energy | 25 | USA |
| 71 | Targa Resources | 22 | USA |
| 72 | Tc Energy | 20 | Canada |
| 73 | HF Sinclair | 19 | USA |
| 74 | CITGO Petroleum | 17 | USA |
| 75 | Mangalore Refinery and Petrochemicals | 17 | India |
| 76 | Ultrapar | 16 | Brazil |
| 77 | QatarEnergy | 15 | Qatar |
| 78 | World Fuel Services | 13 | USA |
| 79 | Atmos Energy | 11 | USA |
| 80 | Chesapeake Energy | 11 | USA |
| 81 | Thaioil Group | 10 | Thailand |
| 82 | Coterra Energy Inc | 9 | USA |
| 83 | Vivakor | 8 | USA |
| 84 | Aker Bp | 7 | Norway |
| 85 | Petróleos Mexicanos | 7 | Mexico |
| 86 | Arc Resources | 6 | Canada |
| 87 | Hess | 6 | USA |
| 88 | Italgas | 6 | Italy |
| 89 | Magellan Midstream Partners | 6 | USA |
| 90 | PGE Polska Grupa Energetyczna | 6 | Poland |
| 91 | Rubis | 6 | France |
