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| Operator | Operating State | Recent Oil Production | Recent Gas Production | Production Dates on File |
|---|---|---|---|---|
| Wolf Energy Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1985 |
| Wolverine Gas & Oil Company Of Wyo LLC | Wyoming | 0 BBLs | 0 MCF | Jul 2005 - Nov 2007 |
| Wolverine Operations LLC | Wyoming | 0 BBLs | 0 MCF | Oct 2003 - Oct 2008 |
| Wood River Oil & Refining Co | Wyoming | 0 BBLs | 0 MCF | Feb 1978 - Dec 1998 |
| Woods Petroleum Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1990 |
| Woodside Oil Company | Wyoming | 0 BBLs | 0 MCF | Feb 1981 - Dec 1988 |
| World Financial Corporation | Wyoming | 0 BBLs | 0 MCF | Sep 1986 - Apr 1987 |
| WPX Energy RM Company | Wyoming | 0 BBLs | 0 MCF | Nov 2000 - Jun 2014 |
| WPX Energy Rocky Mountain LLC | Wyoming | 0 BBLs | 0 MCF | Jan 1981 - Jul 2017 |
| WRC Energy LLC | Wyoming | 366,790 BBLs | 1,037,998 MCF | Aug 2018 - Jul 2025 |
| Wulf Oil Co | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Dec 1984 |
| Wyatt Petroleum Corporation | Wyoming | 0 BBLs | 0 MCF | Sep 1986 - Jul 2002 |
| Wychgram Daniel C | Wyoming | 0 BBLs | 0 MCF | Aug 1989 - Feb 2001 |
| Wymin Oil Company | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Jan 1981 |
| Wynn-Crosby Operating LTD | Wyoming | 0 BBLs | 0 MCF | Sep 2011 - Oct 2017 |
| Wyoil Corp | Wyoming | 1,226 BBLs | 0 MCF | Jan 1982 - Jun 2025 |
| Wyoming Energy Partners LLC | Wyoming | 19 BBLs | 0 MCF | May 2025 - Jul 2025 |
| Wyoming Mineral Exploration LLC | Wyoming | 0 BBLs | 0 MCF | May 2006 - Dec 2006 |
| Wyoming Minerals LTD | Wyoming | 0 BBLs | 0 MCF | Sep 2005 - Apr 2006 |
| Wyoming Oil & Minerals Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Jun 2001 |
| Wyoming Resources Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - Oct 2018 |
| Wyoming Western Oil | Wyoming | 0 BBLs | 0 MCF | Jan 1991 - Sep 2019 |
| Wyoming-Dakota Corporation | Wyoming | 0 BBLs | 0 MCF | Feb 1986 - May 1992 |
| Wyop Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1993 - Sep 1995 |
| Xeric Oil & Gas Corporation | Wyoming | 0 BBLs | 0 MCF | Jan 1997 - Sep 2010 |
| Xog Operating LLC | Wyoming | 0 BBLs | 0 MCF | Sep 2005 - Jan 2008 |
| Xoil Inc | Wyoming | 0 BBLs | 0 MCF | Sep 1989 - Jul 2023 |
| XPR Wyoming LLC | Wyoming | 92 BBLs | 0 MCF | Aug 2023 - Jul 2025 |
| XTO Energy Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1995 - Apr 2025 |
| Y U Oil Inc | Wyoming | 0 BBLs | 0 MCF | Jan 1983 - Mar 1986 |
| Yates Drilling Company | Wyoming | 0 BBLs | 0 MCF | Apr 1990 - Sep 2010 |
| Yegen E C | Wyoming | 0 BBLs | 0 MCF | Jan 1978 - May 2004 |
| Yockim Dennis W | Wyoming | 0 BBLs | 0 MCF | Jan 1988 - Dec 1991 |
| Young Marshall R Oil Co | Wyoming | 0 BBLs | 0 MCF | Aug 1981 - Dec 1997 |
| Z & S Construction Co Inc | Wyoming | 127 BBLs | 0 MCF | Jan 1978 - Jun 2025 |
| Zavanna Resources LLC | Wyoming | 0 BBLs | 0 MCF | Mar 2020 - Jun 2025 |
| Zenergy Inc | Wyoming | 0 BBLs | 0 MCF | Jun 2004 - Sep 2009 |
| Zephyer Production Inc | Wyoming | 0 BBLs | 0 MCF | Jun 2003 - Nov 2007 |
| Zerbst James E | Wyoming | 0 BBLs | 0 MCF | Jan 1982 - Apr 2007 |
| Zoe Oil | Wyoming | 0 BBLs | 0 MCF | May 1983 - Dec 1985 |