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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Wesco Operating, Inc | Utah | 8,380 BBLs | 6,905 MCF | Mar 2016 - Sep 2024 |
| Wesco Operating, Inc. | North Dakota | 6,979 BBLs | 5,611 MCF | Aug 1987 - Sep 2024 |
| West Bay Exploration Company | Michigan | 48,223 BBLs | 61,091 MCF | Jul 1982 - Jul 2024 |
| Western Operating Company | Colorado | 8,920 BBLs | 570 MCF | Jan 1999 - Aug 2024 |
| Western Plains Resources LLC | Kansas | 1,058 BBLs | 1,856 MCF | Jan 2020 - Jul 2024 |
| Wexpro Company | Colorado | 1,012 BBLs | 153,947 MCF | Jan 1999 - Aug 2024 |
| Wexpro Company | Utah | 3,247 BBLs | 88,350 MCF | Jan 1971 - Sep 2024 |
| Wexpro Company | Wyoming | 9,228 BBLs | 3,313,885 MCF | Jan 1978 - Sep 2024 |
| Wexpro II Company | Wyoming | 766 BBLs | 394,717 MCF | Mar 2017 - Sep 2024 |
| Whisler Enterprise Company | Wyoming | 2,015 BBLs | 0 MCF | May 2021 - Oct 2024 |
| Whitco Petroleum, LP | Kansas | 1,175 BBLs | 815 MCF | Nov 1992 - Jul 2024 |
| White & Ellis Drilling, Inc. | Kansas | 1,204 BBLs | 1,822 MCF | Jan 1980 - Jul 2024 |
| White Butte Oil Operations, LLC | North Dakota | 15,320 BBLs | 100,663 MCF | Apr 2015 - Sep 2024 |
| White Exploration, Inc. | Kansas | 2,353 BBLs | 15,648 MCF | Apr 1983 - Jul 2024 |
| White Hawk Oil Company, LLP | Kansas | 3,673 BBLs | 0 MCF | Jan 1980 - Jul 2024 |
| White Pine Production LLC | Michigan | 12,305 BBLs | 10,653 MCF | Sep 2022 - Jul 2024 |
| White Rock Oil & Gas, LLC | Montana | 240,646 BBLs | 223,960 MCF | Jan 2015 - Sep 2024 |
| White Rock Oil & Gas, LLC | North Dakota | 94,614 BBLs | 88,075 MCF | Sep 2015 - Sep 2024 |
| Whiting Oil And Gas Corporation | Montana | 37,222 BBLs | 53,575 MCF | Oct 2003 - Sep 2024 |
| Whiting Oil And Gas Corporation | North Dakota | 2,175,754 BBLs | 7,541,355 MCF | Jun 2002 - Sep 2024 |
| Whitney Oil & Gas, LLC | Louisiana | 38,367 BBLs | 42,157 MCF | Jul 2015 - Jun 2024 |
| Wiepking-Fullerton Energy LLC | Colorado | 7,540 BBLs | 4,973 MCF | Jan 1999 - Aug 2024 |
| Wilcox Energy Company | Louisiana | 8,376 BBLs | 0 MCF | Nov 1984 - Jun 2024 |
| Will-Drill Operating LLC | Louisiana | 631 BBLs | 20,070 MCF | Jan 2009 - Jun 2024 |
| Will-Drill Production Co. Inc. | Louisiana | 9,691 BBLs | 3,503 MCF | Oct 1991 - Jun 2024 |
| Wilton Petroleum, Inc. | Kansas | 1,243 BBLs | 1,433 MCF | Jan 1980 - Jul 2024 |
| Wind River Energy Commission | Wyoming | 1,132 BBLs | 0 MCF | Nov 2023 - Sep 2024 |
| Windham Oil Corp. | Louisiana | 4,784 BBLs | 0 MCF | Jul 1996 - Jun 2024 |
| Windridge Operating LLC | North Dakota | 1,215 BBLs | 8,493 MCF | Jul 2017 - Sep 2024 |
| Witt Oil Production, Inc | Arkansas | 1,300 BBLs | 0 MCF | Jan 2001 - Jul 2024 |
| WPX Energy Permian, LLC | New Mexico | 573,718 BBLs | 2,348,488 MCF | Jan 2007 - Sep 2024 |
| WPX Energy Rocky Mountain LLC | Colorado | 39,873 BBLs | 15,187,251 MCF | May 2001 - Aug 2024 |
| WPX Energy Williston, LLC | North Dakota | 1,371,445 BBLs | 4,246,428 MCF | Apr 2011 - Sep 2024 |
| WRC Energy LLC | Wyoming | 202,596 BBLs | 629,024 MCF | Aug 2018 - Sep 2024 |
| Wyoil Corp | Wyoming | 1,190 BBLs | 0 MCF | Jan 1982 - Sep 2024 |
| XTO Energy Inc | North Dakota | 1,802,009 BBLs | 6,046,428 MCF | Jun 2007 - Sep 2024 |
| XTO Energy Inc | Wyoming | 490 BBLs | 326,709 MCF | Jan 1995 - Sep 2024 |
| XTO Energy Inc. | Kansas | 368 BBLs | 55,532 MCF | Jan 1980 - Jul 2024 |
| XTO Energy Inc. | Louisiana | 46,542 BBLs | 974,527 MCF | Jun 2001 - Jun 2024 |
| XTO Energy, Inc | New Mexico | 1,803,902 BBLs | 9,017,024 MCF | Jan 1993 - Sep 2024 |
| XTO Permian Operating LLC. | New Mexico | 3,468,429 BBLs | 19,021,212 MCF | May 2019 - Sep 2024 |
| Yost Energy Inc | Michigan | 1,116 BBLs | 0 MCF | Jan 1984 - Sep 2024 |
| Younger Energy Company | Kansas | 2,740 BBLs | 1,890 MCF | Jan 1980 - Jul 2024 |
| Z & L Oil LLC | Kansas | 1,768 BBLs | 0 MCF | Jan 2010 - Jul 2024 |
| Zachry Exploration, LLC | Louisiana | 14,352 BBLs | 86,124 MCF | Jan 2010 - Jun 2024 |
| Zargon Oil (ND) Inc. | North Dakota | 8,415 BBLs | 306 MCF | Jul 2002 - Sep 2024 |
| Zarvona Energy LLC | Louisiana | 6,110 BBLs | 46,677 MCF | Apr 2016 - Jun 2024 |
| Zavanna, LLC | North Dakota | 152,764 BBLs | 639,558 MCF | Apr 2007 - Sep 2024 |
| Zenith Drilling Corporation | Kansas | 1,919 BBLs | 1,867 MCF | Jan 1980 - Jul 2024 |
| Zeta Energy LLC | Kansas | 1,107 BBLs | 0 MCF | Jan 2010 - Jul 2024 |