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 |
|---|---|---|---|---|
| M. J. T. Enterprises | Kansas | 1,134 BBLs | 0 MCF | Jun 1980 - Apr 2026 |
| Mack Energy Corp | New Mexico | 115,967 BBLs | 359,915 MCF | Jan 1993 - Jun 2026 |
| Mad Operators LLC | Kansas | 13,140 BBLs | 531 MCF | Jan 2020 - Apr 2026 |
| Magna Operating, LLC | Louisiana | 4,137 BBLs | 0 MCF | Sep 2010 - Dec 2024 |
| Magpie Operating, Inc | Colorado | 14,227 BBLs | 132,372 MCF | Jan 1999 - May 2026 |
| Mai Oil Operations, Inc. | Kansas | 58,202 BBLs | 7,859 MCF | Jan 1980 - Apr 2026 |
| Manning, Gregory | Kansas | 1,149 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Manzanita Operating, LLC | New Mexico | 6,996 BBLs | 0 MCF | Apr 2022 - Jun 2026 |
| Manzano LLC | New Mexico | 5,612 BBLs | 12,719 MCF | Mar 2005 - Jun 2026 |
| Mar-Lou Oil Co., LLC | Kansas | 1,112 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Marathon Oil Company | North Dakota | 1,661,969 BBLs | 4,393,999 MCF | Jul 1979 - Jun 2026 |
| Marathon Oil Permian LLC | New Mexico | 619,404 BBLs | 2,447,913 MCF | Jul 2017 - Jun 2026 |
| Marlin Exploration, LLC | Louisiana | 2,976 BBLs | 2,082 MCF | Mar 2015 - Jan 2025 |
| Marlin Exploration, LLC | Mississippi | 1,439 BBLs | 0 MCF | Dec 1976 - Jun 2026 |
| Marlin Operating, LLC | New Mexico | 19,854 BBLs | 29,392 MCF | Jan 2022 - Jun 2026 |
| Marlin Resources, L.L.C. | Louisiana | 2,463 BBLs | 0 MCF | Apr 2008 - Jan 2025 |
| Marquee Corporation | Louisiana | 1,825 BBLs | 268 MCF | Jun 1990 - Dec 2024 |
| Marshall & Winston Inc | New Mexico | 39,321 BBLs | 108,241 MCF | Jan 1993 - Jun 2026 |
| Matador Production Company | New Mexico | 4,665,570 BBLs | 19,297,009 MCF | Mar 2006 - Jun 2026 |
| Maverick Permian LLC | New Mexico | 117,251 BBLs | 117,171 MCF | Jul 2022 - Jun 2026 |
| Maxim Drilling & Expl Inc | Wyoming | 1,347 BBLs | 17,494 MCF | Jun 1982 - Jun 2026 |
| Maximus Operating LTD | Wyoming | 11,896 BBLs | 1,034 MCF | Jul 2014 - Jul 2026 |
| Maximus Operating, LTD. | Louisiana | 526 BBLs | 36,971 MCF | Jan 2006 - Jan 2025 |
| McCormick Production Company, Inc. | Louisiana | 4,393 BBLs | 0 MCF | Jan 2009 - Dec 2024 |
| McCoy Petroleum Corporation | Kansas | 29,419 BBLs | 37,703 MCF | Jan 1980 - Apr 2026 |
| McFadden Oil Co. | Kansas | 3,803 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| McGinness Energy Company, Inc. | Kansas | 2,617 BBLs | 34,711 MCF | Jan 2020 - Apr 2026 |
| McGowan Working Partners Inc. | Mississippi | 2,125 BBLs | 3,146 MCF | Dec 1976 - Jun 2026 |
| McGowan Working Partners, Inc. | Louisiana | 22,202 BBLs | 40,083 MCF | Jan 2001 - Dec 2024 |
| McNeill Well Service LLC | Wyoming | 2,707 BBLs | 1,847 MCF | Jan 2026 - Jun 2026 |
| MDS Energy Development LLC | Colorado | 8,718 BBLs | 14,312 MCF | Nov 2022 - May 2026 |
| MDS Energy Development LLC | Wyoming | 22,980 BBLs | 36,457 MCF | Jan 2025 - Jun 2026 |
| Me-Tex Oil & Gas Inc | New Mexico | 2,991 BBLs | 17,928 MCF | Jan 1993 - Jun 2026 |
| Medora Minerals, LLC | North Dakota | 6,761 BBLs | 79 MCF | Nov 2018 - Jun 2026 |
| Mercury Resources LLC | North Dakota | 11,934 BBLs | 28,559 MCF | Dec 2018 - Jun 2026 |
| Meridian Energy Inc. | Kansas | 4,385 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Merit Energy Company | Wyoming | 388,078 BBLs | 225,025 MCF | Jan 1981 - Jun 2026 |
| Merit Energy Company, LLC | Kansas | 137,928 BBLs | 1,753,551 MCF | Jan 1980 - Apr 2026 |
| Merrion Oil & Gas Corp | New Mexico | 591 BBLs | 83,541 MCF | Jan 1993 - Jun 2026 |
| Merrion Oil & Gas Corporation | Wyoming | 1,248 BBLs | 8,084 MCF | Jan 1978 - Jun 2026 |
| Messenger Petroleum, Inc. | Kansas | 1,629 BBLs | 38,029 MCF | Jan 1980 - Apr 2026 |
| Messer LLC | Colorado | 0 BBLs | 109,319 MCF | Jan 1999 - May 2026 |
| Mewbourne Oil Co | New Mexico | 8,935,454 BBLs | 36,191,989 MCF | Jan 1993 - Jun 2026 |
| Mi3 Energy LLC | Wyoming | 20,358 BBLs | 4,965 MCF | Nov 2025 - Jun 2026 |
| Michael D. Weilert Oil Company | Kansas | 1,295 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Mid-Con Energy Operating LLC | Wyoming | 6,284 BBLs | 1,460 MCF | Feb 2017 - Jul 2026 |
| Mid-Continent Resources, Inc. | Kansas | 1,448 BBLs | 0 MCF | Jan 1980 - Apr 2026 |
| Mid-South Trading, Inc. | Louisiana | 2,454 BBLs | 0 MCF | Dec 1995 - Jan 2025 |
| Mike Kelso Oil, Inc. | Kansas | 16,038 BBLs | 92,536 MCF | Jan 1980 - Apr 2026 |
| Mikol Oil LLC | Kansas | 1,144 BBLs | 0 MCF | Feb 2009 - Apr 2026 |