Oil & Gas Companies in Campbell County, WY
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | L & J Operating Inc | Gillette, WY 82718 | Oil & Gas Operator | Aug 2016 |
| 2 | L & R Drilling Company | Belle Fourche, SD 57717 | Oil & Gas Operator | Dec 1999 |
| 3 | L B Industries Inc | Englewood, CO 80112 | Oil & Gas Operator | Jun 2003 |
| 4 | Ladd & Lukowicz | | Oil & Gas Operator | May 1983 |
| 5 | Laguna Petroleum Company | Casper, WY 82601 | Oil & Gas Operator | Dec 1982 |
| 6 | Lance Oil & Gas Company Inc | Kirtland, NM 87417 | Oil & Gas Operator | Mar 2013 |
| 7 | Langley Energy | Euless, TX 76040 | Gas Operator | Jan 2016 |
| 8 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 9 | Lasmo Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jan 2024 |
| 10 | Lear Petroleum Exploration | | Oil & Gas Operator | Jul 2013 |
| 11 | Leclair-Westwood Inc | | Oil & Gas Operator | Mar 1982 |
| 12 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Oct 2025 |
| 13 | Levinson Partners Corporation | Denver, CO 80202 | Oil & Gas Operator | Jul 1995 |
| 14 | Liberty Resources Management Co LLC | Denver, CO 80202 | Oil & Gas Operator | Aug 2025 |
| 15 | Loil Oil LLC | Golden, CO 80402 | Oil & Gas Operator | Aug 2025 |
| 16 | Long Trust The | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2008 |
| 17 | Loral Operating LLC | Sheridan, WY 82801 | Gas Operator | Apr 2011 |
| 18 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |
| 19 | Low D J | Littleton, CO 80127 | Oil Operator | Dec 1999 |
| 20 | Lowry Exploration Inc | Tulsa, OK 74119 | Oil & Gas Operator | Jun 2025 |
| 21 | Luff Exploration | Denver, CO 80203 | Oil & Gas Operator | Dec 2006 |
Production numbers shown above are only for Campbell County, WY and for the production period listed.