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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Warhorse Petroleum Inc | Kansas | 3,233 BBLs | 0 MCF | Jan 2010 - Feb 2025 |
| Warren American Oil Co | New Mexico | 1,002 BBLs | 1,870 MCF | Sep 2000 - Apr 2025 |
| Warrior Met Coal Gas, LLC | Alabama | 0 BBLs | 358,568 MCF | Sep 1984 - Mar 2025 |
| Wave Petroleum Operating LLC | Wyoming | 1,248 BBLs | 669 MCF | Dec 2014 - Apr 2025 |
| Weigel Oil Company, LLC | Kansas | 1,435 BBLs | 0 MCF | Feb 1980 - Feb 2025 |
| Wem Operating, LLC | Utah | 193,319 BBLs | 65,850 MCF | Dec 2023 - Apr 2025 |
| Wesco Operating Inc | Colorado | 1,234 BBLs | 0 MCF | Jan 1999 - Apr 2025 |
| Wesco Operating Inc | Wyoming | 31,633 BBLs | 87,736 MCF | Jan 1991 - Apr 2025 |
| Wesco Operating, Inc | Utah | 7,670 BBLs | 84,352 MCF | Mar 2016 - Apr 2025 |
| Wesco Operating, Inc. | Montana | 4,283 BBLs | 1,342 MCF | Jun 1999 - Apr 2025 |
| Wesco Operating, Inc. | North Dakota | 9,170 BBLs | 7,505 MCF | Aug 1987 - May 2025 |
| Western Operating Company | Colorado | 5,869 BBLs | 0 MCF | Jan 1999 - Apr 2025 |
| Wexpro Company | Colorado | 2,010 BBLs | 293,321 MCF | Jan 1999 - Apr 2025 |
| Wexpro Company | Utah | 1,237 BBLs | 158,175 MCF | Jan 1971 - Apr 2025 |
| Wexpro Company | Wyoming | 12,958 BBLs | 3,105,080 MCF | Jan 1978 - Apr 2025 |
| Wexpro II Company | Wyoming | 1,129 BBLs | 540,987 MCF | Mar 2017 - Apr 2025 |
| Wgo Resources, LLC | North Dakota | 6,123 BBLs | 0 MCF | Nov 2024 - Apr 2025 |
| Whisler Enterprise Company | Wyoming | 1,797 BBLs | 0 MCF | May 2021 - Apr 2025 |
| White Butte Oil Operations, LLC | North Dakota | 13,741 BBLs | 84,102 MCF | Apr 2015 - Apr 2025 |
| White Exploration, Inc. | Kansas | 1,255 BBLs | 10,042 MCF | Apr 1983 - Feb 2025 |
| White Hawk Oil Company, LLP | Kansas | 3,080 BBLs | 0 MCF | Jan 1980 - Feb 2025 |
| White Pine Production LLC | Michigan | 11,824 BBLs | 8,186 MCF | Sep 2022 - May 2025 |
| White Rock Oil & Gas, LLC | Arkansas | 10,184 BBLs | 15,848 MCF | Jan 2001 - Jan 2025 |
| White Rock Oil & Gas, LLC | Montana | 370,318 BBLs | 419,828 MCF | Jan 2015 - Apr 2025 |
| White Rock Oil & Gas, LLC | North Dakota | 85,029 BBLs | 86,035 MCF | Sep 2015 - Apr 2025 |
| Whiting Oil And Gas Corporation | Montana | 33,172 BBLs | 43,948 MCF | Oct 2003 - Apr 2025 |
| Whiting Oil And Gas Corporation | North Dakota | 1,645,741 BBLs | 6,765,696 MCF | Jun 2002 - Apr 2025 |
| Whitney Oil & Gas, LLC | Louisiana | 28,298 BBLs | 26,495 MCF | Jul 2015 - Jan 2025 |
| Wiepking-Fullerton Energy LLC | Colorado | 7,123 BBLs | 4,962 MCF | Jan 1999 - Apr 2025 |
| Wilcox Energy Company | Louisiana | 9,355 BBLs | 0 MCF | Nov 1984 - Dec 2024 |
| Windham Oil Corp. | Louisiana | 4,053 BBLs | 0 MCF | Jul 1996 - Dec 2024 |
| Windridge Operating LLC | North Dakota | 1,267 BBLs | 7,272 MCF | Jul 2017 - Apr 2025 |
| Wolverine Gas & Oil Company Of Utah, LLC | Utah | 73,612 BBLs | 31,275 MCF | May 2004 - May 2025 |
| WPX Energy Permian, LLC | New Mexico | 212,435 BBLs | 1,241,197 MCF | Jan 2007 - Apr 2025 |
| WPX Energy Williston, LLC | North Dakota | 1,397,565 BBLs | 4,199,302 MCF | Apr 2011 - Apr 2025 |
| WRC Energy LLC | Wyoming | 296,790 BBLs | 727,028 MCF | Aug 2018 - Apr 2025 |
| XTO Energy Inc | North Dakota | 1,678,153 BBLs | 5,902,907 MCF | Jun 2007 - Apr 2025 |
| XTO Energy Inc | Wyoming | 905 BBLs | 313,774 MCF | Jan 1995 - Apr 2025 |
| XTO Energy Inc. | Kansas | 186 BBLs | 56,155 MCF | Jan 1980 - Feb 2025 |
| XTO Energy Inc. | Louisiana | 50,026 BBLs | 942,997 MCF | Jun 2001 - Dec 2024 |
| XTO Energy, Inc | New Mexico | 1,751,373 BBLs | 8,499,553 MCF | Jan 1993 - Apr 2025 |
| XTO Permian Operating LLC. | New Mexico | 4,151,326 BBLs | 21,312,173 MCF | May 2019 - Apr 2025 |
| Yates Industries LLC | New Mexico | 1,700 BBLs | 779 MCF | Sep 2021 - May 2025 |
| Younger Energy Company | Kansas | 2,782 BBLs | 1,433 MCF | Jan 1980 - Feb 2025 |
| Z & L Oil LLC | Kansas | 1,474 BBLs | 0 MCF | Jan 2010 - Feb 2025 |
| Zachry Exploration, LLC | Louisiana | 13,515 BBLs | 84,415 MCF | Jan 2010 - Dec 2024 |
| Zargon Oil (ND) Inc. | North Dakota | 7,783 BBLs | 302 MCF | Jul 2002 - Apr 2025 |
| Zarvona Energy LLC | Louisiana | 6,049 BBLs | 40,890 MCF | Apr 2016 - Jan 2025 |
| Zavanna, LLC | North Dakota | 213,073 BBLs | 657,107 MCF | Apr 2007 - Apr 2025 |
| Zenith Drilling Corporation | Kansas | 1,720 BBLs | 916 MCF | Jan 1980 - Feb 2025 |