Oil & Gas Companies in Marion County, TX
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | Aethon Energy Operating LLC | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 2 | Ames Financial, Inc | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2025 |
| 3 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 4 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 5 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Oct 2025 |
| 6 | Arena Resources LLC | Longview, TX 75608 | Oil & Gas Operator | Jul 2025 |
| 7 | Ark-La-Tex Energy Partners, LLC | Shreveport, LA 71101 | Oil & Gas Operator | Jan 2013 |
| 8 | Ark-La-Tex Energy, L.L.C. | Shreveport, LA 71101 | Oil & Gas Operator | Oct 2025 |
| 9 | Arkla Exploration Co. | Shreveport, LA 71151 | Oil & Gas Operator | Jan 1993 |
| 10 | Avian Tech International, Inc. | Euless, TX 76040 | Oil & Gas Operator | Apr 1995 |
Production numbers shown above are only for Marion County, TX and for the production period listed.