Oil & Gas Companies in St. Mary Parish, LA
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | L P C Energy, Inc. | | Oil & Gas Operator | Mar 1985 |
| 2 | La Intrastate Gas Co LLC | | Oil Operator | Apr 2004 |
| 3 | La. Land & Expl. Co. | | Oil & Gas Operator | Dec 2010 |
| 4 | Lea Exploration, Inc. | | Oil & Gas Operator | Nov 1989 |
| 5 | Lear Petroleum Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Aug 1999 |
| 6 | Legacy Resources Co., L.P. | | Oil & Gas Operator | Apr 2019 |
| 7 | LGS Exploration, Inc. | | Oil & Gas Operator | Jan 1991 |
| 8 | Liberty Resources, Inc. | | Oil & Gas Operator | Dec 2024 |
| 9 | Lindenmuth & Associates | | Oil & Gas Operator | Aug 2001 |
| 10 | Linder Oil Company,A Partnership | Shreveport, LA 71136 | Oil & Gas Operator | Oct 2025 |
| 11 | Linn Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 12 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 13 | Llog Expl. Co. | Metairie, LA 70005 | Oil & Gas Operator | Jan 2003 |
| 14 | Llox, L.L.C. | Covington, LA 70433 | Oil & Gas Operator | Oct 2025 |
| 15 | Lobo Operating, Inc. | Houston, TX 77077 | Oil & Gas Operator | Dec 2024 |
| 16 | Longview Production, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2002 |
| 17 | Louisiana Energy & Environmental, Inc. | | Oil & Gas Operator | Aug 2015 |
| 18 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
| 19 | Lyons Petroleum, Inc. | | Oil & Gas Operator | Oct 1988 |
Production numbers shown above are only for St. Mary Parish, LA and for the production period listed.