| Subject | English | Thesaurus |
| abbr., USA | American Petroleum Institute Quality Programs Department | APIQPD (igisheva) |
| mil., abbr. | Armed Services Petroleum Agency | ASPA |
| mil., abbr. | Armed Services Petroleum Board | ASPB |
| mil., abbr. | Armed Services Petroleum Purchasing Agency | ASPPA |
| mil., abbr. | Armed Services Petroleum Purchasing Board | ASPPB |
| abbr., oil | British Petroleum Co. | B.P.C. |
| abbr., mining. | British Zone Petroleum Co-ordinating Authority | BZPCA |
| AMEX., abbr. | Canadian Occidental Petroleum, LTD. | CXY |
| NYSE., abbr. | Canadian Occidental Petroleum, LTD. Preferred | CZX P |
| NYSE., abbr. | Canadian Occidental Petroleum, LTD. Preferred A | CZX PA |
| abbr., O&G | Japan Petroleum Exploration Co., Ltd. | JAPEX (MichaelBurov) |
| abbr., tradem. | MB Petroleum Services | MBPS (igisheva) |
| abbr., mining. | National Petroleum Radio Frequency Co-ordinating Association | NPRFCA |
| abbr. | Occidental Petroleum Corporation | OXY |
| NYSE., abbr. | Occidental Petroleum Corporation Capital Trust I | OXY PB |
| tradem., abbr. | Petroleum Chemicals Marketing Services | PCMS |
| tradem., abbr. | Petroleum Engineering Services | PES |
| abbr., O&G, sahk.r. | Petroleum Geo Services | PGS |
| abbr., O&G | Petroleum Geo-Services | PGS (MichaelBurov) |
| abbr., O&G | Petroleum Geo-Services ASA | PGS (MichaelBurov) |
| abbr., industr. | Puyang Zhongyuan Restar petroleum equipment Co.,Ltd | RSD (Sagoto) |
