| 31101 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 31102 | Walton, James A. | Midland, TX 79702 | Oil & Gas Operator | Oct 1994 |
| 31103 | Walton, Tara | Copan, OK 74022 | Oil Operator | Oct 2024 |
| 31104 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 31105 | Wam Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2016 |
| 31106 | Wandering Star Partners #1 LLLP | | Oil & Gas Operator | Apr 2015 |
| 31107 | Wandoo Energy, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Nov 2025 |
| 31108 | Wandover Charles T SR | Inverness, FL 34452-7527 | Oil & Gas Operator | Dec 2024 |
| 31109 | Wapco, Inc. | Cement, OK 73017 | Oil Operator | Jul 2025 |
| 31110 | Wapi Operating LLC | McCurtain, OK 74944 | Oil & Gas Operator | Jun 2025 |
| 31111 | Wapiti Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2006 |
| 31112 | Wapiti Oil & Gas LLC | Houston, TX 77024 | Oil Operator | Dec 2011 |
| 31113 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | Nov 2025 |
| 31114 | War Cry, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 31115 | Warbonnet Exploration Company | Houston, TX 77056 | Oil & Gas Operator | Apr 2016 |
| 31116 | Ward & Son* Alfred | | Oil & Gas Operator | Jul 2021 |
| 31117 | Ward Feed Yard, Inc. | Larned, KS 67550 | Oil & Gas Operator | Mar 2016 |
| 31118 | Ward Kelly | Drumright, OK 74030-5661 | Oil & Gas Operator | Feb 2015 |
| 31119 | Ward M Haggard Oil And Gas Exploration Inc | | Oil Operator | Sep 2025 |
| 31120 | Ward Oil Co. | Kilgore, TX 75663 | Oil & Gas Operator | Nov 2025 |
| 31121 | Ward Oil Company An Okla Corp | McAlester, OK 74501 | Oil & Gas Operator | Feb 1993 |
| 31122 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Jul 2025 |
| 31123 | Ward Trust | Spring, TX 77383 | Oil & Gas Operator | May 2013 |
| 31124 | Ward Williston Drilling Co | | Oil & Gas Operator | Dec 1994 |
| 31125 | Ward, Charles Oil Company | Olney, TX 76374 | Oil Operator | Nov 2025 |
| 31126 | Ward, E. B. | Alice, TX 78333 | Oil & Gas Operator | Jun 2001 |
| 31127 | Ward, L. S. | Graham, TX 76450 | Oil & Gas Operator | Jun 2001 |
| 31128 | Ward, Ted G. Jr. | Monahans, TX 79756 | Oil & Gas Operator | Nov 2000 |
| 31129 | Ward-Williston Company | | Oil & Gas Operator | Apr 2014 |
| 31130 | Ware House Industries | Casper, WY 82605 | Oil & Gas Operator | Dec 2013 |
| 31131 | Ware Jimmy M | Seminole, OK 74868 | Oil & Gas Operator | Nov 1998 |
| 31132 | Ware, Lonnie | | Oil & Gas Operator | Jul 2025 |
| 31133 | Warfield John E | Cleo Springs, OK 73729-9723 | Oil & Gas Operator | Jul 2005 |
| 31134 | Warfield Management, LLC | Newman, GA 30263 | Gas Operator | Dec 2021 |
| 31135 | Warhorse Oil & Gas, LLC | | Oil & Gas Operator | Dec 2018 |
| 31136 | Warhorse Petroleum Inc | Lafayette, CO 80026 | Oil Operator | Jun 2025 |
| 31137 | Warner Clifford E | Newark, OH 43055 | Oil Operator | Dec 2022 |
| 31138 | Warner George H | Pomeroy, OH 45769 | Oil & Gas Operator | Dec 2014 |
| 31139 | Warner Gona Revocable Trust | Sand Springs, OK 74063-5296 | Oil & Gas Operator | May 2009 |
| 31140 | Warner Oil Co., Inc. | Canyon, TX 79015 | Oil & Gas Operator | May 2013 |
| 31141 | Warner Oil Prod | | Oil Operator | Apr 1995 |
| 31142 | Warner Production LLC | Mannford, OK 74044-6182 | Oil & Gas Operator | Jul 2025 |
| 31143 | Warner Sisters, LLC | Thompsons Sta, TN 37179 | Oil Operator | Nov 2025 |
| 31144 | Warner Ventures Inc | | Oil Operator | Dec 2024 |
| 31145 | Warner, Mark T. Oil Co | Pampa, TX 79065 | Oil & Gas Operator | Jul 2021 |
| 31146 | Warner-Pawel | Alice, TX 78333 | Oil & Gas Operator | Nov 2025 |
| 31147 | Warnock Operating Company, LLC | Graham, TX 76450 | Oil & Gas Operator | Jul 2013 |
| 31148 | Warpath Energy Inc | Broken Arrow, OK 74014-1118 | Oil & Gas Operator | Apr 2018 |
| 31149 | Warrego Oil & Gas LLC | Lander, WY 82520 | Oil Operator | May 2018 |
| 31150 | Warren American Oil Co | Tulsa, OK 74147 | Oil & Gas Operator | Aug 2025 |
| 31151 | Warren American Oil Company LLC | Tulsa, OK 74147 | Oil & Gas Operator | Nov 2025 |
| 31152 | Warren C J Oil Co | MT Carmel, IL 62863 | Oil & Gas Operator | Dec 1984 |
| 31153 | Warren Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | Jan 2016 |
| 31154 | Warren Drilling Co | Dexter City, OH 45727 | Oil & Gas Operator | Dec 2024 |
| 31155 | Warren E & P Inc | Dallas, TX 75240 | Oil & Gas Operator | Sep 2025 |
| 31156 | Warren Enterprises Inc | Gillette, WY 82718 | Oil Operator | Dec 2022 |
| 31157 | Warren Producers Inc | Bowling Green, KY 42102 | Oil & Gas Operator | Dec 2017 |
| 31158 | Warren Production Services | Caldwell, TX 77836 | Oil & Gas Operator | Nov 2025 |
| 31159 | Warren, Earl T. | San Angelo, TX 76906 | Oil & Gas Operator | Nov 2025 |
| 31160 | Warren, James E. | Arkansas City, KS 67005 | Oil Operator | Nov 2009 |
| 31161 | Warren, Joe H. | Dallas, TX 75206 | Oil & Gas Operator | Oct 2001 |
| 31162 | Warren, Malcolm | Corfu, NY 14036 | Gas Operator | Dec 2024 |
| 31163 | Warrior Exploration LLC | Sapulpa, OK 74067-1912 | Oil & Gas Operator | Jun 2025 |
| 31164 | Warrior Inc | Hobbs, NM 88241 | Oil & Gas Operator | Feb 1998 |
| 31165 | Warrior Met Coal Gas, LLC | Brookwood, AL 35444 | Gas Operator | Jul 2025 |
| 31166 | Warrior Resources Inc. | Mexia, TX 76667 | Oil & Gas Operator | Nov 2025 |
| 31167 | Warwick Associates LC | Oklahoma City, OK 73112 | Oil & Gas Operator | Jul 2025 |
| 31168 | Warwick Oil & Gas, Inc. | Houston, TX 77098 | Oil & Gas Operator | Feb 1993 |
| 31169 | Warwick Oil Corp. | | Oil & Gas Operator | Mar 1990 |
| 31170 | Warwick-Artemis, LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Nov 2025 |
| 31171 | Warwick-Bacchus LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jul 2025 |
| 31172 | Warwick-Jupiter LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jul 2025 |
| 31173 | Warwick-Minerva LLC | Oklahoma City, OK 73116 | Oil & Gas Operator | Jul 2025 |
| 31174 | Wasatch Oil & Gas Corp | Farmington, UT 84025-0699 | Oil & Gas Operator | Mar 2002 |
| 31175 | Wash, Robert C. | Forsan, TX 79733 | Oil & Gas Operator | Nov 2000 |
| 31176 | Wash, Robert C. Inc. | Forsan, TX 79733 | Oil & Gas Operator | Nov 2025 |
| 31177 | Washakie Energies Company | Worland, WY 82401 | Oil & Gas Operator | Dec 2019 |
| 31178 | Washakie Oil Company | | Oil & Gas Operator | Dec 1989 |
| 31179 | Washburn Lee | Newcastle, WY 82701 | Oil Operator | Jan 2025 |
| 31180 | Washington Energy Co LLC | Canonsburg, PA 15317-0400 | Oil & Gas Operator | Dec 2024 |
| 31181 | Washington Energy Exploration | | Oil & Gas Operator | Dec 1997 |
| 31182 | Washita Energy Inc | Pauls Valley, OK 73075-0923 | Oil & Gas Operator | Mar 2015 |
| 31183 | Washita Oil And Gas, L.L.C. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2015 |
| 31184 | Washita Production Company | Tulsa, OK 74136 | Oil & Gas Operator | May 2006 |
| 31185 | Wassom, Claude J | | Oil & Gas Operator | May 2013 |
| 31186 | Wasson Billy C | Morris, OK 74445 | Oil & Gas Operator | Jul 2025 |
| 31187 | Waste TRMT Corp | Washington, PA 15301-0558 | Oil & Gas Operator | Dec 2024 |
| 31188 | Wat Khmer Temple* | | Oil Operator | Dec 2003 |
| 31189 | Watchtower Petroleum, LLC | | Oil & Gas Operator | Jun 2025 |
| 31190 | Watco Energy | Jacksboro, TX 76458 | Oil & Gas Operator | Nov 2025 |
| 31191 | Watco Energy, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Apr 1996 |
| 31192 | Water Works Engineering, Inc. | Rockdale, TX 76567 | Oil & Gas Operator | Jan 1998 |
| 31193 | Waterbridge Arkoma Operating LLC | Houston, TX 77056 | Oil Operator | Jun 2025 |
| 31194 | Waterbridge Texas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Nov 2025 |
| 31195 | Waterco Inc | Wooster, OH 44691 | Oil & Gas Operator | Dec 2000 |
| 31196 | Waterford Energy Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Nov 1998 |
| 31197 | Waterford Production Co | | Oil Operator | Oct 1992 |
| 31198 | Waterloo Exploration LLC | Tulsa, OK 74136-4226 | Gas Operator | Jul 2025 |
| 31199 | Waters Eng. & Operating, Inc. | Corpus Chrsti, TX 78471 | Oil & Gas Operator | Sep 2013 |
| 31200 | Waters Petroleum | Albany, TX 76430 | Oil & Gas Operator | Aug 2016 |