| 31001 | Wikel David | Hominey, OK 74035 | Oil Operator | Jan 2024 |
| 31002 | Wil-Mar Operations | Duncan, OK 73534-1566 | Oil & Gas Operator | Oct 2016 |
| 31003 | Wil-Max Co. | Kingman, KS 67068 | Oil Operator | Jul 2001 |
| 31004 | Wil-MC Oil Corporation The | Irving, TX 75015-2510 | Oil & Gas Operator | Mar 1999 |
| 31005 | Wil-Ron Inc | Lucien, OK 73757-9710 | Oil & Gas Operator | Jan 2024 |
| 31006 | Wila Inc | | Oil Operator | Dec 2000 |
| 31007 | Wilbanks Energy Corporation | Houston, TX 77036 | Oil & Gas Operator | Dec 2001 |
| 31008 | Wilbanks Exploration, Inc. | Denver, CO 80202 | Oil & Gas Operator | May 2002 |
| 31009 | Wilbanks Reserve Corporation | Denver, CO 80203 | Oil & Gas Operator | May 2024 |
| 31010 | Wilbanks, Bruce & G.L. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 31011 | Wilbanks, Bruce A. | Midland, TX 79701 | Oil & Gas Operator | Aug 1996 |
| 31012 | Wilbanks, Bruce A. Company | Midland, TX 79702 | Oil & Gas Operator | May 2024 |
| 31013 | Wilbrook Exploration, Inc. | Lingleville, TX 76461 | Oil & Gas Operator | Aug 2003 |
| 31014 | Wilco Oil & Gas Corporation | Oklahoma City, OK 73159-6229 | Oil & Gas Operator | Dec 2023 |
| 31015 | Wilco Oil Gas & Expl. Corp. | | Oil & Gas Operator | Mar 1979 |
| 31016 | Wilco Operating | Monahans, TX 79756 | Oil & Gas Operator | May 2024 |
| 31017 | Wilco Properties, Inc. | Dallas, TX 75205 | Oil & Gas Operator | Jan 2004 |
| 31018 | Wilco-Placentia Oil Operator LLC | | Oil & Gas Operator | Mar 2024 |
| 31019 | Wilcobill Corporation | | Oil Operator | Dec 1986 |
| 31020 | Wilcox Energy Company | | Oil & Gas Operator | Mar 2024 |
| 31021 | Wilcox Energy Company LLC | Rule, TX 79547 | Oil & Gas Operator | May 2024 |
| 31022 | Wilcox Oil Company | Rule, TX 79547 | Oil & Gas Operator | Aug 2008 |
| 31023 | Wilcox Oil, LLC | Wichita, KS 67235 | Oil Operator | Dec 2019 |
| 31024 | Wilcox Operating Company | | Oil Operator | Dec 1989 |
| 31025 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | May 2024 |
| 31026 | Wilcox Petroleum Operating LLC. | Rule, TX 79547 | Oil & Gas Operator | May 2024 |
| 31027 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 31028 | Wilcox Ventures, LLC | | Oil & Gas Operator | Mar 2024 |
| 31029 | Wilcoxson Brothers | Terral, OK 73569 | Oil Operator | Mar 2008 |
| 31030 | Wild Cat Operating Company | Victoria, TX 77903 | Oil & Gas Operator | Mar 2008 |
| 31031 | Wild Goose Storage LLC | | Gas Operator | Mar 2024 |
| 31032 | Wild Horse Energy | Paducah, TX 79248 | Oil & Gas Operator | May 2024 |
| 31033 | Wild Horse Tank Trucks Inc | Duncan, OK 73533-7667 | Oil Operator | Oct 2016 |
| 31034 | Wild Outdoors Oil LLC | | Oil & Gas Operator | Feb 2024 |
| 31035 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 31036 | Wildcat Energy, Inc. | Sedan, KS 67361 | Oil Operator | Feb 2001 |
| 31037 | Wildcat Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Jul 2021 |
| 31038 | Wildcat Equipment Co. Inc. | | Oil Operator | Dec 1987 |
| 31039 | Wildcat Midstream Caddo LLC | | Oil Operator | May 2017 |
| 31040 | Wildcat Oil & Gas LLC | Seneca, KS 66538 | Oil & Gas Operator | Jan 2024 |
| 31041 | Wildcat Oil, LLC | Sebree, KY 42455 | Oil Operator | Dec 2021 |
| 31042 | Wildcat Resc Inc | | Oil & Gas Operator | Nov 1992 |
| 31043 | Wildcat Resources | | Oil & Gas Operator | Jun 2016 |
| 31044 | Wildcat Well Services, LTD. | | Oil Operator | Oct 1989 |
| 31045 | Wildco Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | May 2024 |
| 31046 | Wilde, Henry & Janet | Union Springs, NY 13160 | Gas Operator | Dec 2022 |
| 31047 | Wildfire Energy Operating LLC | Houston, TX 77224 | Oil & Gas Operator | May 2024 |
| 31048 | Wildfire Oil & Gas, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2014 |
| 31049 | Wildfire Partners Inc | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2009 |
| 31050 | Wildhorse Oil | Bogue, KS 67625 | Oil Operator | Oct 1994 |
| 31051 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 31052 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | May 2024 |
| 31053 | Wildhorse Resources Management Co, LLC | | Oil & Gas Operator | Feb 2018 |
| 31054 | Wildhorse Resources MNGT Co, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2019 |
| 31055 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 31056 | Wildrose Resources Corp | Englewood, CO 80110-6007 | Oil & Gas Operator | Mar 2004 |
| 31057 | Wildwood Operating LLC | | Oil & Gas Operator | Jan 2024 |
| 31058 | Wiley Lease Co., LTD. | Jourdanton, TX 78026 | Oil Operator | May 2024 |
| 31059 | Wilham Investments, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2020 |
| 31060 | Wilhite Productions | MC Dade, TX 78650 | Oil & Gas Operator | Oct 2012 |
| 31061 | Wilkerson Oil Company | | Oil Operator | Dec 1991 |
| 31062 | Wilkes Energy Inc | Akron, OH 44308 | Oil & Gas Operator | Dec 2022 |
| 31063 | Wilkins L L E & O Company | Shawnee, OK 74802-1807 | Oil & Gas Operator | Aug 2018 |
| 31064 | Wilkinson Drilli | | Oil Operator | Dec 1991 |
| 31065 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 31066 | Wilkinson Oil & Gas LLC | | Oil Operator | Jan 2024 |
| 31067 | Wilkison Richard W | Oklahoma City, OK 73107 | Oil Operator | Mar 2011 |
| 31068 | Will Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Jan 2024 |
| 31069 | Will Haristy, Jr. | | Oil & Gas Operator | Dec 2023 |
| 31070 | Will-Drill Operating, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | May 2024 |
| 31071 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | May 2024 |
| 31072 | Willa Mae Overman LLC | Ponca City, OK 74601-9451 | Oil & Gas Operator | Aug 2023 |
| 31073 | Willard M Cline | Bradford, PA 16701-1715 | Oil & Gas Operator | Dec 2022 |
| 31074 | Willard Pease Drilling Co | Grand Junction, CO 81501 | Oil & Gas Operator | Dec 1983 |
| 31075 | Willard, James | Montague, TX 76251 | Oil & Gas Operator | May 2024 |
| 31076 | Willey George | Newark, OH 43058-572-572 | Oil & Gas Operator | Dec 2022 |
| 31077 | William B Renfro LLC | | Oil Operator | Dec 2020 |
| 31078 | William C Bahlburg | Dallas, TX 75240 | Oil & Gas Operator | Dec 1994 |
| 31079 | William D. Pittman | | Oil & Gas Operator | Jun 1991 |
| 31080 | William F. Powell | | Oil & Gas Operator | Jun 1979 |
| 31081 | William Fleming Productions, LLC | Wichita Falls, TX 76305 | Oil Operator | May 2024 |
| 31082 | William G Bush | Grand Junction, CO 81506 | Oil & Gas Operator | Jun 2012 |
| 31083 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 31084 | William Herbert Hunt | | Oil & Gas Operator | Mar 1986 |
| 31085 | William K. Barker & Associates | | Oil & Gas Operator | Dec 1986 |
| 31086 | William Lagnion | | Oil & Gas Operator | Aug 1998 |
| 31087 | William M Mauersberg | Sigel, PA 15860-2402 | Oil & Gas Operator | Dec 2009 |
| 31088 | William M. Williams | | Oil Operator | Jun 2018 |
| 31089 | William Marvin Hobbs, SR. | | Oil Operator | Jul 2002 |
| 31090 | William McIntire Coal Oil & Gas | Shelocta, PA 15774-0171 | Oil & Gas Operator | May 2022 |
| 31091 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2023 |
| 31092 | William Southwell & Son Oil LLC | Warren, PA 16365 | Oil & Gas Operator | Dec 2023 |
| 31093 | Williams Brothers Engineering Company | Tulsa, OK 74134-5885 | Oil & Gas Operator | May 2013 |
| 31094 | Williams Dale | Konawa, OK 74849-9211 | Oil Operator | Jan 2024 |
| 31095 | Williams Dale And Dorothy Family Trust | | Oil & Gas Operator | Jan 2024 |
| 31096 | Williams Deville Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | May 2024 |
| 31097 | Williams Doyle Dba BCF Gas | Tulsa, OK 74114-7099 | Oil & Gas Operator | Jul 2023 |
| 31098 | Williams Exploration Company | | Oil & Gas Operator | Dec 1986 |
| 31099 | Williams Gas Pipeline Central, Inc. | Shawnee Mission, KS 66215 | Oil Operator | Sep 2010 |
| 31100 | Williams Inc | | Oil Operator | Dec 2019 |