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Corporate Rankings Rankings of the groups’ invention by industrial sectors: Oil and gas
Corporate Rankings Rankings of the groups’ invention by industrial sectors: Oil and gas
Rankings of the groups’ invention by industrial sectors: Oil and gas
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| Rank | Group | Number of Patents | Continent | Country |
| 1 | EXXON MOBIL CORP | 2167 | America | United states |
| 2 | SCHLUMBERGER N.V. | 2166 | Others | Netherlands antilles |
| 3 | HALLIBURTON ENERGY SERVICES, INC | 1941 | America | United states |
| 4 | NIPPON OIL CORPORATION | 1660 | Asia | Japan |
| 5 | BAKER HUGHES INC | 1352 | America | United states |
| 6 | NIPPON MINING HOLDINGS INC | 1115 | Asia | Japan |
| 7 | TOTAL S.A. | 1018 | Europe | France |
| 8 | CHEVRON CORPORATION | 973 | America | United states |
| 9 | BP P.L.C. | 917 | Europe | United kingdom |
| 10 | PETROCHINA COMPANY LIMITED | 848 | Asia | China |
| 11 | CHINA PETROLEUM & CHEMICAL CORPORATION | 844 | Asia | China |
| 12 | ROYAL DUTCH SHELL PLC | 623 | Europe | United kingdom |
| 13 | SMITH INTERNATIONAL INC | 387 | America | United states |
| 14 | ENI SPA | 346 | Europe | Italy |
| 15 | CONOCOPHILLIPS | 318 | America | United states |
| 16 | MCDERMOTT INTERNATIONAL, INC. | 315 | Others | Panama |
| 17 | BJ SERVICES CO | 279 | America | United states |
| 18 | NATIONAL OILWELL VARCO, INC. | 264 | America | United states |
| 19 | FMC TECHNOLOGIES INC | 193 | America | United states |
| 20 | SINOPEC SHANGHAI PETROCHEMICAL CO., LTD. | 182 | Asia | China |
| 21 | STATOILHYDRO ASA | 165 | Europe | Norway |
| 22 | REPSOL YPF S.A. | 122 | Europe | Spain |
| 23 | TECHNIP | 121 | Europe | France |
| 24 | POLSKI KONCERN NAFTOWY ORLEN SA. | 97 | Europe | Poland |
| 25 | INDIAN OIL CORPORATION LIMITED | 74 | Asia | India |