Search for U.S. oil and gas operators by operator name or browse by county to find the operator you're looking for. Find wells by operator, the oil and gas produced by county per operator, and recent drilling permits filed by U.S. operators.
Want even more details on U.S. oil and gas operators? Subscribe now to get access to advanced mapping features, production information, well details, operator details and much more.
| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| L. D. Drilling, Inc. | Kansas | 8,872 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| La Delta Farms Oil Company LLC | Louisiana | 1,377 BBLs | 2,299 MCF | Mar 2016 - Dec 2024 |
| Lachenmayr Oil LLC | Kansas | 3,534 BBLs | 1,456 MCF | Jan 1980 - Dec 2024 |
| Lafayette Oilfield Contractors, Inc. | Louisiana | 8,311 BBLs | 0 MCF | Nov 2020 - Dec 2024 |
| Lambda Energy Resources LLC | Michigan | 43,121 BBLs | 368,204 MCF | May 2014 - Mar 2025 |
| Land And Natural Resource Development, Inc. | Alabama | 2,754 BBLs | 40,794 MCF | Jul 1977 - Feb 2025 |
| Landmark Energy Partners, LLC | New Mexico | 1,218 BBLs | 0 MCF | May 2024 - Mar 2025 |
| Landmark Resources, Inc. | Kansas | 11,722 BBLs | 5,197 MCF | Jan 1980 - Dec 2024 |
| Lario Oil & Gas Company | Kansas | 22,964 BBLs | 21,655 MCF | Jan 1980 - Dec 2024 |
| Laymon Oil II, LLC | Kansas | 8,325 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| LB Exploration, Inc. | Kansas | 972 BBLs | 17,871 MCF | Jan 1980 - Dec 2024 |
| Lebsack Oil Production Inc. | Kansas | 5,465 BBLs | 1,022 MCF | Jan 1980 - Dec 2024 |
| Legacy Reserves Operating LP | Montana | 1,500 BBLs | 16 MCF | Jun 2012 - Feb 2025 |
| Legacy Reserves Operating LP | North Dakota | 8,859 BBLs | 5,603 MCF | Oct 2006 - Feb 2025 |
| Lewis Operating Company | Louisiana | 1,466 BBLs | 120 MCF | Oct 1988 - Dec 2024 |
| LH Operating, LLC | New Mexico | 27,038 BBLs | 19,993 MCF | Nov 2019 - Feb 2025 |
| Liberty Resources Management Company, LLC | North Dakota | 2,263 BBLs | 1,132 MCF | Jun 2014 - Feb 2025 |
| Lime Rock Resources III-A, L.P. | North Dakota | 269,883 BBLs | 325,617 MCF | Mar 2015 - Feb 2025 |
| Lime Rock Resources V-A, LP | North Dakota | 93,498 BBLs | 654,236 MCF | Jul 2022 - Mar 2025 |
| Little Chief Energy Corporation | Kansas | 1,727 BBLs | 0 MCF | Jan 2010 - Dec 2024 |
| Lobo Operating, Inc. | Louisiana | 2,430 BBLs | 1,308 MCF | Mar 1995 - Dec 2024 |
| Lobo Production, Inc | Kansas | 0 BBLs | 22,887 MCF | Jan 1980 - Dec 2024 |
| Loeb LLC* Herman L | Colorado | 1,216 BBLs | 0 MCF | Jan 1999 - Mar 2025 |
| Logos Operating LLC | Colorado | 0 BBLs | 227,421 MCF | Jul 2017 - Feb 2025 |
| Logos Operating, LLC | New Mexico | 17,743 BBLs | 6,763,128 MCF | Jul 2012 - Feb 2025 |
| Loil Oil LLC | Wyoming | 5,063 BBLs | 10,118 MCF | Nov 2016 - Feb 2025 |
| Lonestar Oil Co | Kansas | 1,624 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Longfellow Energy, LP | New Mexico | 180,700 BBLs | 397,585 MCF | Jul 2017 - Feb 2025 |
| Longs Peak Resources LLC | Colorado | 3,423 BBLs | 2,358 MCF | Feb 2016 - Feb 2025 |
| Longs Peak Resources LLC | Wyoming | 12,441 BBLs | 13,408 MCF | Feb 2016 - Feb 2025 |
| Longview Production Company | Arkansas | 477 BBLs | 26,753 MCF | Jan 2001 - Jan 2025 |
| Louisiana Jordan Oil Company, Inc. | Louisiana | 1,207 BBLs | 0 MCF | Jan 2013 - Dec 2024 |
| Luff Exploration Company | North Dakota | 8,224 BBLs | 5,369 MCF | Dec 1996 - Feb 2025 |
| Lynx Operating Co., Inc. | New Mexico | 2,073 BBLs | 2,553 MCF | Jan 1999 - Feb 2025 |
| M & G DRLG Co Inc | New Mexico | 0 BBLs | 56,028 MCF | May 1995 - Feb 2025 |
| M & K Oil Company LLC | Wyoming | 17,559 BBLs | 67,683 MCF | Jan 1978 - Feb 2025 |
| M & M Exploration, Inc. | Kansas | 642 BBLs | 13,640 MCF | Mar 2002 - Dec 2024 |
| M & M Oil Company, L.L.C. | Louisiana | 2,996 BBLs | 0 MCF | Aug 1994 - Jan 2025 |
| M E Klein & Associates, Inc | Kansas | 962 BBLs | 4,473 MCF | Jan 1980 - Dec 2024 |
| M G Oil Inc | Kansas | 6,804 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Mack Energy Corp | New Mexico | 144,928 BBLs | 323,600 MCF | Jan 1993 - Feb 2025 |
| Mad Operators LLC | Kansas | 1,738 BBLs | 472 MCF | Jan 2020 - Dec 2024 |
| Magna Operating, LLC | Louisiana | 4,137 BBLs | 0 MCF | Sep 2010 - Dec 2024 |
| Magpie Operating, Inc | Colorado | 22,160 BBLs | 101,892 MCF | Jan 1999 - Feb 2025 |
| Mai Oil Operations, Inc. | Kansas | 43,636 BBLs | 347 MCF | Jan 1980 - Dec 2024 |
| Manzanita Operating, LLC | New Mexico | 4,170 BBLs | 0 MCF | Apr 2022 - Feb 2025 |
| Manzano LLC | New Mexico | 6,692 BBLs | 13,369 MCF | Mar 2005 - Feb 2025 |
| Mar-Lou Oil Co., LLC | Kansas | 1,642 BBLs | 0 MCF | Jan 1980 - Dec 2024 |
| Maralex Resources, Inc | Colorado | 0 BBLs | 154,782 MCF | Jan 1999 - Feb 2025 |
| Marathon Oil Company | North Dakota | 2,692,165 BBLs | 5,421,526 MCF | Jul 1979 - Feb 2025 |