| 30901 | Weiser-Brown Oil Co | Magnolia, AR 71754 | Oil Operator | Jan 2025 |
| 30902 | Weiser-Brown Operating Company | Magnolia, AR 71754 | Oil & Gas Operator | Apr 2026 |
| 30903 | Weiss Drilling Inc | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2025 |
| 30904 | Weiss Oil Co. | Streator, IL 61364 | Oil & Gas Operator | Dec 1997 |
| 30905 | Weitzman Irvin | | Oil & Gas Operator | Sep 1988 |
| 30906 | Wejco, Inc. | Rising Star, TX 76471 | Oil & Gas Operator | Apr 2026 |
| 30907 | Welch Family LLC | Drumright, OK 74030 | Oil Operator | Jan 2026 |
| 30908 | Welch Family Trust | Ada, OK 74820-9643 | Oil & Gas Operator | Apr 2015 |
| 30909 | Welch Oil & Gas Company | Parkersburg, WV 26104 | Oil & Gas Operator | Jun 2013 |
| 30910 | Welcome Well Serv. & Boykin Bros | Abilene, TX 79604 | Oil & Gas Operator | Apr 1995 |
| 30911 | Weldbank Energy Corp | Warren, PA 16365-5114 | Oil & Gas Operator | Dec 2025 |
| 30912 | Welder Exploration & Prod., Inc. | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2022 |
| 30913 | Welder Operating, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Mar 2001 |
| 30914 | Welder-Heyer Energy, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2001 |
| 30915 | Welderxp LTD. | San Antonio, TX 78212 | Oil & Gas Operator | Apr 2026 |
| 30916 | Weldon Corporation | Houston, TX 77056 | Oil Operator | Feb 2020 |
| 30917 | Welhausen Operating Co., Inc. | Beeville, TX 78104 | Oil & Gas Operator | Aug 2003 |
| 30918 | Welhausen Operating Company, LP | Beeville, TX 78104 | Oil & Gas Operator | Nov 2016 |
| 30919 | Well Management Services Inc | | Oil & Gas Operator | Dec 2001 |
| 30920 | Well Recycling Company | Olney, TX 76374 | Oil Operator | Aug 2005 |
| 30921 | Well Renewal Inc | Tulsa, OK 74103-0091 | Oil Operator | Mar 2015 |
| 30922 | Well Tech Oil And Gas, Inc. | Wichita, KS 67206 | Oil Operator | Sep 2020 |
| 30923 | Well Water Management | | Oil & Gas Operator | Dec 2025 |
| 30924 | Well-Co Solutions, LLC | Batson, TX 77519 | Oil & Gas Operator | Apr 2026 |
| 30925 | Wellco Energy Inc | Harrah, OK 73045 | Oil & Gas Operator | Dec 2025 |
| 30926 | Wellco Production LLC | Purcell, OK 73080-6833 | Oil & Gas Operator | Dec 2025 |
| 30927 | Wellington Operating Company | | Oil & Gas Operator | Jan 2026 |
| 30928 | Wellmaster Production Co LLC | | Oil & Gas Operator | Jul 2015 |
| 30929 | Wells Allen W | Barnsdall, OK 74002 | Oil & Gas Operator | Dec 2025 |
| 30930 | Wells Edward K | Sapulpa, OK 74066-4243 | Oil & Gas Operator | Jun 2004 |
| 30931 | Wells Energy Com | | Oil & Gas Operator | Mar 1994 |
| 30932 | Wells Jimme D | Ponca City, OK 74604 | Oil Operator | Dec 2025 |
| 30933 | Wells Oil Compan | | Gas Operator | Sep 1984 |
| 30934 | Wells Oil, LLC | Gridley, KS 66852 | Oil Operator | Dec 2025 |
| 30935 | Wells Oilfield Services, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 30936 | Wells, Michael E. | Springville, NY 14141 | Gas Operator | Dec 2024 |
| 30937 | Wells-Battelstei | | Oil & Gas Operator | Mar 1993 |
| 30938 | Wells-Battelstein O&G, Inc. | | Gas Operator | Dec 1986 |
| 30939 | Wellspring Oil, LLC | | Oil Operator | Jan 2026 |
| 30940 | Wellstar Corporation | Northglenn, CO 80233 | Oil & Gas Operator | Jan 2026 |
| 30941 | Wellsville Oil C | | Oil Operator | Dec 1996 |
| 30942 | Wellsville Oil Co | Wellsville, KS 66092 | Oil Operator | Sep 2000 |
| 30943 | Wellwin Drilling | | Oil & Gas Operator | Dec 1994 |
| 30944 | Wellwin Drilling Corporation | Wellington, KS 67152 | Oil & Gas Operator | Dec 2025 |
| 30945 | Welsh Hills Oil & Gas Co | Newark, OH 43055 | Oil & Gas Operator | Dec 1999 |
| 30946 | Wem Joint Venture | Gillette, WY 82716 | Oil & Gas Operator | Sep 2015 |
| 30947 | Wem Operating, LLC | Provo, UT 84604 | Oil & Gas Operator | Jan 2026 |
| 30948 | Wema Natural Res, Inc | Sharon Grove, KY 42280 | Oil Operator | Dec 2021 |
| 30949 | Wen-Be | Jourdanton, TX 78026 | Oil & Gas Operator | Apr 2026 |
| 30950 | Wendy Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 30951 | Wenert Trich | | Oil & Gas Operator | Oct 1988 |
| 30952 | Wenert Trich Oil | | Oil & Gas Operator | Jul 1990 |
| 30953 | Wenexco, Inc. | Streetman, TX 75859 | Oil & Gas Operator | Apr 2026 |
| 30954 | Wengerd, Noah A. | Sherman, NY 14781 | Gas Operator | Dec 2024 |
| 30955 | Wenner Petroleum Corp | Englewood, CO 80111 | Oil & Gas Operator | Dec 1986 |
| 30956 | Wente Exploration Inc | Oklahoma City, OK 73102 | Gas Operator | Oct 2011 |
| 30957 | Wentworth Energy, Inc. | Palestine, TX 75801 | Oil & Gas Operator | Jun 2009 |
| 30958 | Wentworth Operating Company | Oklahoma City, OK 73162-1863 | Oil & Gas Operator | Jan 2026 |
| 30959 | Werner Oil Farm | Warren, PA 16365-3608 | Oil & Gas Operator | Dec 2025 |
| 30960 | Werner Oil, Inc. | Borger, TX 79008 | Oil & Gas Operator | Sep 1996 |
| 30961 | Wernette, Louis J. | Hondo, TX 78861 | Oil & Gas Operator | Sep 2023 |
| 30962 | Werth Exploration Trust | | Oil Operator | Dec 2013 |
| 30963 | Wes Oil & Gas LLC | Clarks Mills, PA 16114-1912 | Gas Operator | Dec 2025 |
| 30964 | Wes Pro, Inc. | Jacksboro, TX 76458 | Oil Operator | Jan 2013 |
| 30965 | Wes-Mor Drilling, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 30966 | Wes-Mor Oil & Gas, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 1994 |
| 30967 | Wes-Tex Drilling Company | Abilene, TX 79604 | Oil & Gas Operator | Jan 2000 |
| 30968 | Wes-Tex Oil Co. (I) | Bangs, TX 76823 | Oil & Gas Operator | Apr 2026 |
| 30969 | Wesco Operating Inc | Casper, WY 82602 | Oil & Gas Operator | Feb 2026 |
| 30970 | Wesco Production LLC | | Oil & Gas Operator | Jun 2025 |
| 30971 | Wescor LLC | Hartville, OH 44632 | Oil & Gas Operator | Dec 2025 |
| 30972 | Wesgra Corporation | Mexican Hat, UT 84531 | Oil & Gas Operator | Jan 2026 |
| 30973 | Wesla Oil & Gas Co., Inc. | | Oil & Gas Operator | Jun 2001 |
| 30974 | Wespac Energy, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2019 |
| 30975 | Wessel Oil And Gas | Cushing, OK 74023-9580 | Oil & Gas Operator | Mar 2015 |
| 30976 | Wessely Energy Company | Dallas, TX 75206 | Oil & Gas Operator | May 2001 |
| 30977 | Wessely Energy Corporation | | Oil & Gas Operator | Feb 1989 |
| 30978 | West 40 Production | Ness City, KS 67560 | Oil Operator | Apr 1998 |
| 30979 | West American Energy Corporation | | Oil & Gas Operator | Dec 2025 |
| 30980 | West Barrytown Services, LLC | Gilbertown, AL 36908 | Oil & Gas Operator | Mar 2020 |
| 30981 | West Bay Exploration Company | Muenster, TX 76252 | Oil & Gas Operator | Aug 2025 |
| 30982 | West Co., The | Wichita Falls, TX 76307 | Oil & Gas Operator | Jun 2016 |
| 30983 | West Coast Oil Company | | Oil Operator | Dec 1996 |
| 30984 | West Coast Operators Inc. | | Oil & Gas Operator | Dec 2025 |
| 30985 | West Delta Oil Co. | | Oil & Gas Operator | Jul 2000 |
| 30986 | West Energy Operating LLC | | Oil & Gas Operator | Dec 2025 |
| 30987 | West Fox SWD LLC | Ratliff City, OK 73481 | Oil Operator | Jan 2026 |
| 30988 | West Gas Inc | | Oil & Gas Operator | Dec 2017 |
| 30989 | West Hopkins Petroleum Co LP | | Oil & Gas Operator | Sep 2025 |
| 30990 | West Inland Energy, Inc. | Fort Worth, TX 76179 | Oil & Gas Operator | Jan 2026 |
| 30991 | West Kansas Oil | | Oil Operator | Jul 1992 |
| 30992 | West Kansas Oil Corporation | Oberlin, KS 67749 | Oil Operator | Aug 1998 |
| 30993 | West Largo Corp | Tulsa, OK 74137 | Oil & Gas Operator | Sep 2023 |
| 30994 | West Mountain Operating Co, Inc. | Longview, TX 75604 | Oil & Gas Operator | Feb 2019 |
| 30995 | West Newport Oil Co. | | Oil & Gas Operator | Dec 2025 |
| 30996 | West Oil Resources, LLC | Bertram, TX 78605 | Oil & Gas Operator | Apr 2026 |
| 30997 | West Operating Company | Seminole, OK 74868-3851 | Oil & Gas Operator | Mar 2015 |
| 30998 | West Petroleum Corp. | San Antonio, TX 78205 | Oil & Gas Operator | Oct 2009 |
| 30999 | West Plains Enterprises, Inc | Plains, KS 67869 | Oil & Gas Operator | Sep 2022 |
| 31000 | West River Energy LLC | Portville, NY 14770 | Oil & Gas Operator | Dec 2024 |