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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Warrior Met Coal Gas, LLC | Alabama | 0 BBLs | 500,044 MCF | Sep 1984 - Dec 2023 |
| Weigel Oil Company, LLC | Kansas | 1,341 BBLs | 0 MCF | Feb 1980 - Dec 2023 |
| Weiser-Brown Operating Company | Arkansas | 7,399 BBLs | 16,653 MCF | Jan 2001 - Feb 2024 |
| Wellstar Corporation | Wyoming | 3,446 BBLs | 3,064 MCF | Jan 1985 - Feb 2024 |
| Wesco Operating Inc | Colorado | 2,274 BBLs | 467 MCF | Jan 1999 - Feb 2024 |
| Wesco Operating Inc | Wyoming | 28,321 BBLs | 77,351 MCF | Jan 1991 - Feb 2024 |
| Wesco Operating, Inc | Utah | 7,631 BBLs | 5,095 MCF | Mar 2016 - Feb 2024 |
| Wesco Operating, Inc. | North Dakota | 7,397 BBLs | 6,017 MCF | Aug 1987 - Mar 2024 |
| West Bay Exploration Company | Michigan | 42,907 BBLs | 51,050 MCF | Jul 1982 - Feb 2024 |
| Wexpro Company | Colorado | 2,262 BBLs | 307,407 MCF | Jan 1999 - Feb 2024 |
| Wexpro Company | Utah | 1,647 BBLs | 123,893 MCF | Jan 1971 - Feb 2024 |
| Wexpro Company | Wyoming | 12,678 BBLs | 3,423,407 MCF | Jan 1978 - Feb 2024 |
| Wexpro II Company | Wyoming | 1,427 BBLs | 489,481 MCF | Mar 2017 - Feb 2024 |
| Whisler Enterprise Company | Wyoming | 1,796 BBLs | 0 MCF | May 2021 - Mar 2024 |
| White Butte Oil Operations, LLC | North Dakota | 16,877 BBLs | 68,118 MCF | Apr 2015 - Feb 2024 |
| White Exploration, Inc. | Kansas | 4,113 BBLs | 15,153 MCF | Apr 1983 - Dec 2023 |
| White Hawk Oil Company, LLP | Kansas | 2,763 BBLs | 0 MCF | Jan 1980 - Dec 2023 |
| White Pine Production LLC | Michigan | 13,265 BBLs | 11,296 MCF | Sep 2022 - Jan 2024 |
| White River Operating LLC | Louisiana | 1,833 BBLs | 355 MCF | May 2019 - Dec 2023 |
| White Rock Oil & Gas LLC | Michigan | 1,919 BBLs | 1,393 MCF | May 2015 - Feb 2024 |
| White Rock Oil & Gas LLC | Wyoming | 9,905 BBLs | 844 MCF | May 2015 - Feb 2024 |
| White Rock Oil & Gas, LLC | Arkansas | 14,892 BBLs | 28,866 MCF | Jan 2001 - Feb 2024 |
| White Rock Oil & Gas, LLC | Montana | 315,621 BBLs | 364,753 MCF | Jan 2015 - Feb 2024 |
| White Rock Oil & Gas, LLC | North Dakota | 91,974 BBLs | 94,062 MCF | Sep 2015 - Feb 2024 |
| Whiting Oil And Gas Corporation | Montana | 34,311 BBLs | 40,034 MCF | Oct 2003 - Feb 2024 |
| Whiting Oil And Gas Corporation | North Dakota | 1,899,525 BBLs | 6,588,077 MCF | Jun 2002 - Feb 2024 |
| Whitney Oil & Gas, LLC | Louisiana | 51,509 BBLs | 75,242 MCF | Jul 2015 - Dec 2023 |
| Wilcox Energy Company | Louisiana | 6,143 BBLs | 0 MCF | Nov 1984 - Dec 2023 |
| Will-Drill Production Co. Inc. | Louisiana | 8,370 BBLs | 2,720 MCF | Oct 1991 - Dec 2023 |
| Windham Oil Corp. | Louisiana | 4,421 BBLs | 0 MCF | Jul 1996 - Jan 2024 |
| Windridge Operating LLC | North Dakota | 1,169 BBLs | 8,841 MCF | Jul 2017 - Feb 2024 |
| Wolverine Gas & Oil Company Of Utah, LLC | Utah | 93,753 BBLs | 38,477 MCF | May 2004 - Feb 2024 |
| Wolverine Gas And Oil Company Of Michigan LLC | Michigan | 38,731 BBLs | 0 MCF | Oct 2016 - Jan 2024 |
| WPX Energy Permian, LLC | New Mexico | 210,907 BBLs | 1,220,616 MCF | Jan 2007 - Feb 2024 |
| WPX Energy Rocky Mountain LLC | Colorado | 55,033 BBLs | 15,340,936 MCF | May 2001 - Feb 2024 |
| WPX Energy Williston, LLC | North Dakota | 1,934,014 BBLs | 4,085,112 MCF | Apr 2011 - Feb 2024 |
| WRC Energy LLC | Wyoming | 145,395 BBLs | 505,459 MCF | Aug 2018 - Feb 2024 |
| XTO Energy Inc | North Dakota | 2,456,296 BBLs | 6,522,981 MCF | Jun 2007 - Feb 2024 |
| XTO Energy Inc | Wyoming | 439 BBLs | 307,274 MCF | Jan 1995 - Feb 2024 |
| XTO Energy Inc. | Kansas | 182 BBLs | 63,446 MCF | Jan 1980 - Dec 2023 |
| XTO Energy Inc. | Louisiana | 51,511 BBLs | 1,178,799 MCF | Jun 2001 - Dec 2023 |
| XTO Energy, Inc | New Mexico | 1,507,903 BBLs | 7,977,513 MCF | Jan 1993 - Feb 2024 |
| XTO Permian Operating LLC. | New Mexico | 3,531,504 BBLs | 16,539,333 MCF | May 2019 - Feb 2024 |
| Yates Industries LLC | New Mexico | 1,716 BBLs | 773 MCF | Sep 2021 - Feb 2024 |
| Younger Energy Company | Kansas | 3,662 BBLs | 370 MCF | Jan 1980 - Dec 2023 |
| Zachry Exploration, LLC | Louisiana | 12,811 BBLs | 81,478 MCF | Jan 2010 - Dec 2023 |
| Zargon Oil (ND) Inc. | North Dakota | 8,710 BBLs | 317 MCF | Jul 2002 - Feb 2024 |
| Zarvona Energy LLC | Louisiana | 3,839 BBLs | 28,570 MCF | Apr 2016 - Dec 2023 |
| Zavanna, LLC | North Dakota | 173,874 BBLs | 623,873 MCF | Apr 2007 - Feb 2024 |
| Zenith Drilling Corporation | Kansas | 2,125 BBLs | 3,064 MCF | Jan 1980 - Dec 2023 |