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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Wapiti Operating, LLC | New Mexico | 0 BBLs | 980,654 MCF | Nov 2019 - Jun 2025 |
| Wapiti Operating, LLC | Utah | 5,492 BBLs | 910,092 MCF | Jul 2013 - Jun 2025 |
| Warhorse Petroleum Inc | Kansas | 3,105 BBLs | 0 MCF | Jan 2010 - Apr 2025 |
| Warrior Met Coal Gas, LLC | Alabama | 0 BBLs | 408,481 MCF | Sep 1984 - May 2025 |
| Wem Operating, LLC | Utah | 319,552 BBLs | 422,641 MCF | Dec 2023 - Jun 2025 |
| Wesco Operating Inc | Wyoming | 26,956 BBLs | 77,414 MCF | Jan 1991 - Jun 2025 |
| Wesco Operating, Inc | Utah | 12,137 BBLs | 81,684 MCF | Mar 2016 - Jun 2025 |
| Wesco Operating, Inc. | Montana | 5,199 BBLs | 2,319 MCF | Jun 1999 - Jun 2025 |
| Wesco Operating, Inc. | North Dakota | 8,832 BBLs | 7,569 MCF | Aug 1987 - Jun 2025 |
| Western Operating Company | Colorado | 5,420 BBLs | 293 MCF | Jan 1999 - Jun 2025 |
| Wexpro Company | Colorado | 1,785 BBLs | 225,267 MCF | Jan 1999 - Jun 2025 |
| Wexpro Company | Utah | 1,143 BBLs | 148,869 MCF | Jan 1971 - Jun 2025 |
| Wexpro Company | Wyoming | 9,193 BBLs | 2,558,291 MCF | Jan 1978 - Jun 2025 |
| Wexpro II Company | Wyoming | 929 BBLs | 411,405 MCF | Mar 2017 - Jun 2025 |
| Wgo Resources, LLC | North Dakota | 7,786 BBLs | 4,552 MCF | Nov 2024 - Jun 2025 |
| Whisler Enterprise Company | Wyoming | 1,564 BBLs | 0 MCF | May 2021 - Jul 2025 |
| White & Ellis Drilling, Inc. | Kansas | 1,431 BBLs | 1,522 MCF | Jan 1980 - Apr 2025 |
| White Butte Oil Operations, LLC | North Dakota | 5,698 BBLs | 30,266 MCF | Apr 2015 - Jun 2025 |
| White Exploration, Inc. | Kansas | 2,700 BBLs | 13,600 MCF | Apr 1983 - Apr 2025 |
| White Hawk Oil Company, LLP | Kansas | 3,893 BBLs | 0 MCF | Jan 1980 - Apr 2025 |
| White Pine Production LLC | Michigan | 11,652 BBLs | 8,713 MCF | Sep 2022 - Jul 2025 |
| White Rock Oil & Gas, LLC | Montana | 1,620 BBLs | 2,615 MCF | Jan 2015 - Jun 2025 |
| White Rock Oil & Gas, LLC | North Dakota | 82,727 BBLs | 86,404 MCF | Sep 2015 - Jun 2025 |
| Whiting Oil And Gas Corporation | Montana | 33,315 BBLs | 46,162 MCF | Oct 2003 - Jun 2025 |
| Whiting Oil And Gas Corporation | North Dakota | 1,578,254 BBLs | 6,929,558 MCF | Jun 2002 - Jun 2025 |
| Whitney Oil & Gas, LLC | Louisiana | 28,298 BBLs | 26,495 MCF | Jul 2015 - Jan 2025 |
| Wiepking-Fullerton Energy LLC | Colorado | 6,645 BBLs | 5,200 MCF | Jan 1999 - Jun 2025 |
| Wilcox Energy Company | Louisiana | 9,355 BBLs | 0 MCF | Nov 1984 - Dec 2024 |
| Wilton Petroleum, Inc. | Kansas | 1,755 BBLs | 1,955 MCF | Jan 1980 - Apr 2025 |
| Windham Oil Corp. | Louisiana | 4,053 BBLs | 0 MCF | Jul 1996 - Dec 2024 |
| Windridge Operating LLC | North Dakota | 1,269 BBLs | 10,906 MCF | Jul 2017 - Jun 2025 |
| Wolverine Gas & Oil Company Of Utah, LLC | Utah | 73,223 BBLs | 37,098 MCF | May 2004 - Jun 2025 |
| WPX Energy Permian, LLC | New Mexico | 183,807 BBLs | 1,072,775 MCF | Jan 2007 - Jun 2025 |
| WPX Energy Rocky Mountain LLC | Colorado | 43,176 BBLs | 14,194,622 MCF | May 2001 - Jun 2025 |
| WPX Energy Williston, LLC | North Dakota | 1,157,661 BBLs | 3,883,877 MCF | Apr 2011 - Jun 2025 |
| WRC Energy LLC | Wyoming | 366,790 BBLs | 1,037,998 MCF | Aug 2018 - Jun 2025 |
| Wyoil Corp | Wyoming | 1,226 BBLs | 0 MCF | Jan 1982 - Jun 2025 |
| XTO Energy Inc | North Dakota | 1,476,453 BBLs | 5,464,517 MCF | Jun 2007 - Jun 2025 |
| XTO Energy Inc. | Kansas | 185 BBLs | 59,825 MCF | Jan 1980 - Apr 2025 |
| XTO Energy Inc. | Louisiana | 50,026 BBLs | 942,997 MCF | Jun 2001 - Dec 2024 |
| XTO Energy, Inc | New Mexico | 1,491,266 BBLs | 8,014,789 MCF | Jan 1993 - Jun 2025 |
| XTO Permian Operating LLC. | New Mexico | 4,519,833 BBLs | 21,661,348 MCF | May 2019 - Jun 2025 |
| Yates Industries LLC | New Mexico | 2,019 BBLs | 998 MCF | Sep 2021 - Jul 2025 |
| Younger Energy Company | Kansas | 2,546 BBLs | 1,544 MCF | Jan 1980 - Apr 2025 |
| Z & L Oil LLC | Kansas | 1,590 BBLs | 0 MCF | Jan 2010 - Apr 2025 |
| Zachry Exploration, LLC | Louisiana | 13,515 BBLs | 84,415 MCF | Jan 2010 - Dec 2024 |
| Zargon Oil (ND) Inc. | North Dakota | 6,733 BBLs | 244 MCF | Jul 2002 - Jun 2025 |
| Zarvona Energy LLC | Louisiana | 6,049 BBLs | 40,890 MCF | Apr 2016 - Jan 2025 |
| Zavanna, LLC | North Dakota | 200,054 BBLs | 641,488 MCF | Apr 2007 - Jun 2025 |
| Zenith Drilling Corporation | Kansas | 1,435 BBLs | 807 MCF | Jan 1980 - Apr 2025 |