Oil & Gas Companies in St. Martin Parish, LA
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | P & A Well Service | | Oil & Gas Operator | Jan 1994 |
| 2 | Panotech Exploration Corp. | | Oil & Gas Operator | Jan 1983 |
| 3 | Partners Oil Company | Tulsa, OK 74135 | Oil & Gas Operator | Aug 1995 |
| 4 | Paul M. Toce | | Oil & Gas Operator | Jul 1984 |
| 5 | Pengo Producing Company | | Oil & Gas Operator | Mar 1987 |
| 6 | Petro-Guard Production,L.L.C. | Houston, TX 77063 | Oil & Gas Operator | Dec 2024 |
| 7 | Petrohawk Operating Company | Houston, TX 77056 | Oil & Gas Operator | Oct 2021 |
| 8 | Petroleum Resources MGMT Corp. | | Oil & Gas Operator | Mar 2002 |
| 9 | Phillips Energy, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2018 |
| 10 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 11 | Pioneer Prod. Corp. | | Oil & Gas Operator | Jun 1986 |
| 12 | Plains Resources Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2008 |
| 13 | Plano Corp. | | Oil & Gas Operator | Mar 2005 |
| 14 | Presidio Energy Inc | | Oil & Gas Operator | Jan 1992 |
| 15 | Presidio Exploration, Inc. | Englewood, CO 80155 | Oil & Gas Operator | May 1999 |
| 16 | Prize Operating Company | Grapevine, TX 76051 | Oil & Gas Operator | Aug 2016 |
| 17 | Proteus Petroleum, Inc. | | Oil & Gas Operator | Nov 1983 |
| 18 | Puma, Inc. | | Oil & Gas Operator | Oct 2000 |
Production numbers shown above are only for St. Martin Parish, LA and for the production period listed.