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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Weiser-Brown Operating Company | Arkansas | 7,399 BBLs | 16,653 MCF | Jan 2001 - Feb 2024 |
| Wellstar Corporation | Wyoming | 3,385 BBLs | 2,936 MCF | Jan 1985 - Feb 2024 |
| Wesco Operating Inc | Colorado | 2,274 BBLs | 467 MCF | Jan 1999 - Feb 2024 |
| Wesco Operating Inc | Wyoming | 31,510 BBLs | 81,571 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 - Feb 2024 |
| West Bay Exploration Company | Michigan | 45,027 BBLs | 56,986 MCF | Jul 1982 - Feb 2024 |
| Wexpro Company | Utah | 1,647 BBLs | 123,893 MCF | Jan 1971 - Feb 2024 |
| Wexpro Company | Wyoming | 15,202 BBLs | 3,783,810 MCF | Jan 1978 - Jan 2024 |
| Wexpro II Company | Wyoming | 509 BBLs | 389,495 MCF | Mar 2017 - Feb 2024 |
| Whisler Enterprise Company | Wyoming | 2,106 BBLs | 0 MCF | May 2021 - Mar 2024 |
| White & Ellis Drilling, Inc. | Kansas | 1,236 BBLs | 2,068 MCF | Jan 1980 - Dec 2023 |
| 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 | 13,165 BBLs | 11,421 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 | 2,240 BBLs | 1,272 MCF | May 2015 - Feb 2024 |
| White Rock Oil & Gas LLC | Wyoming | 10,265 BBLs | 819 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 | 91,748 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 | New Mexico | 1,169 BBLs | 3,795 MCF | Jan 1993 - Jan 2024 |
| Whiting Oil And Gas Corporation | North Dakota | 1,884,025 BBLs | 6,573,596 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 |
| Wind River Energy Commission | Wyoming | 1,195 BBLs | 0 MCF | Nov 2023 - Feb 2024 |
| 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 |
| Witt Oil Production, Inc | Arkansas | 1,249 BBLs | 0 MCF | Jan 2001 - Feb 2024 |
| Wolverine Gas And Oil Company Of Michigan LLC | Michigan | 42,729 BBLs | 0 MCF | Oct 2016 - Jan 2024 |
| WPX Energy Permian, LLC | New Mexico | 239,100 BBLs | 1,360,749 MCF | Jan 2007 - Jan 2024 |
| WPX Energy Rocky Mountain LLC | Colorado | 55,156 BBLs | 15,342,089 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 | 160,282 BBLs | 457,030 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 | 602 BBLs | 323,716 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 | 1,232,216 BBLs | 6,888,733 MCF | Jan 1993 - Jan 2024 |
| XTO Permian Operating LLC. | New Mexico | 3,367,616 BBLs | 16,546,323 MCF | May 2019 - Jan 2024 |
| Yates Industries LLC | New Mexico | 1,715 BBLs | 1,137 MCF | Sep 2021 - Jan 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 |