| 31401 | Wild Cat Operating Company | Victoria, TX 77903 | Oil & Gas Operator | Mar 2008 |
| 31402 | Wild Goose Storage LLC | | Gas Operator | Jul 2026 |
| 31403 | Wild Horse Energy | Paducah, TX 79248 | Oil & Gas Operator | Sep 2026 |
| 31404 | Wild Outdoors Oil LLC | Velma, OK 73491 | Oil & Gas Operator | Jun 2026 |
| 31405 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 31406 | Wildcat Energy, Inc. | Sedan, KS 67361 | Oil Operator | Feb 2001 |
| 31407 | Wildcat Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Jul 2021 |
| 31408 | Wildcat Equipment Co. Inc. | | Oil Operator | Dec 1987 |
| 31409 | Wildcat Midstream Caddo LLC | | Oil Operator | May 2017 |
| 31410 | Wildcat Oil & Gas LLC | Seneca, KS 66538 | Oil & Gas Operator | Apr 2026 |
| 31411 | Wildcat Oil Producer LLC | Wellsboro, PA 16901 | Oil & Gas Operator | Dec 2025 |
| 31412 | Wildcat Oil, LLC | Sebree, KY 42455 | Oil Operator | Dec 2021 |
| 31413 | Wildcat Resc Inc | | Oil & Gas Operator | Nov 1992 |
| 31414 | Wildcat Resources | | Oil & Gas Operator | Jun 2016 |
| 31415 | Wildcat Well Services, LTD. | | Oil Operator | Oct 1989 |
| 31416 | Wildco Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Sep 2026 |
| 31417 | Wilde, Henry & Janet | Union Springs, NY 13160 | Gas Operator | Dec 2025 |
| 31418 | Wildfire Energy Operating LLC | Houston, TX 77224 | Oil & Gas Operator | Sep 2026 |
| 31419 | Wildfire Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2014 |
| 31420 | Wildfire Partners Inc | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2009 |
| 31421 | Wildhorse Oil | Bogue, KS 67625 | Oil Operator | Oct 1994 |
| 31422 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 31423 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Sep 2026 |
| 31424 | Wildhorse Resources Management Co, LLC | | Oil & Gas Operator | Feb 2018 |
| 31425 | Wildhorse Resources MNGT Co, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2019 |
| 31426 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 31427 | Wildlife Management Group LLC | Clymer, NY 14724 | Gas Operator | Dec 2025 |
| 31428 | Wildrose Resources Corp | Englewood, CO 80110-6007 | Oil & Gas Operator | Mar 2004 |
| 31429 | Wildwood Operating LLC | Hennessey, OK 73742 | Oil & Gas Operator | May 2026 |
| 31430 | Wiley Lease Co., LTD. | Jourdanton, TX 78026 | Oil Operator | Sep 2026 |
| 31431 | Wilham Investments, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2020 |
| 31432 | Wilhite Productions | MC Dade, TX 78650 | Oil & Gas Operator | Oct 2012 |
| 31433 | Wilkerson Oil Company | | Oil Operator | Dec 1991 |
| 31434 | Wilkes Energy Inc | Akron, OH 44308 | Oil & Gas Operator | Dec 2022 |
| 31435 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 31436 | Wilkinson Drilli | | Oil Operator | Dec 1991 |
| 31437 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 31438 | Wilkinson Oil & Gas LLC | Duncan, OK 73533-2048 | Oil Operator | Apr 2026 |
| 31439 | Wilkison Richard W | Oklahoma City, OK 73107 | Oil Operator | Mar 2011 |
| 31440 | Wilkowski, Robert William Jr. & Francis, Julia | Lancaster, NY 14086 | Gas Operator | Dec 2025 |
| 31441 | Will Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | May 2026 |
| 31442 | Will Haristy, Jr. | | Oil & Gas Operator | Nov 2024 |
| 31443 | Will McCasland Ind | Hobbs, NM 88240 | Gas Operator | Feb 2008 |
| 31444 | Will-Drill Operating, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | Sep 2026 |
| 31445 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Sep 2026 |
| 31446 | Willa Mae Overman LLC | Ponca City, OK 74601-9451 | Oil & Gas Operator | Aug 2023 |
| 31447 | Willard M Cline | | Oil & Gas Operator | Dec 2022 |
| 31448 | Willard Pease Drilling Co | Grand Junction, CO 81501 | Oil & Gas Operator | Dec 1983 |
| 31449 | Willey George | Newark, OH 43058 | Oil & Gas Operator | Dec 2025 |
| 31450 | William B Renfro LLC | | Oil Operator | Dec 2020 |
| 31451 | William C Bahlburg | Dallas, TX 75240 | Oil & Gas Operator | Dec 1994 |
| 31452 | William D. Pittman | | Oil & Gas Operator | Jun 1991 |
| 31453 | William F. Powell | | Oil & Gas Operator | Jun 1979 |
| 31454 | William Fleming Productions, LLC | Wichita Falls, TX 76305 | Oil Operator | Feb 2025 |
| 31455 | William G Bush | Grand Junction, CO 81506 | Oil & Gas Operator | Jun 2012 |
| 31456 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 31457 | William Herbert Hunt | | Oil & Gas Operator | Mar 1986 |
| 31458 | William Jefferson Turner | Marlow, OK 73055 | Oil & Gas Operator | Apr 2007 |
| 31459 | William K. Barker & Associates | | Oil & Gas Operator | Dec 1986 |
| 31460 | William L Horner Energy | | Gas Operator | Dec 2014 |
| 31461 | William Lagnion | | Oil & Gas Operator | Aug 1998 |
| 31462 | William M Mauersberg | Sigel, PA 15860-2402 | Oil & Gas Operator | Dec 2025 |
| 31463 | William M. Williams | | Oil Operator | May 2018 |
| 31464 | William Marvin Hobbs, SR. | | Oil Operator | Aug 2002 |
| 31465 | William McIntire Coal Oil & Gas | | Oil & Gas Operator | May 2022 |
| 31466 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2025 |
| 31467 | William Southwell & Son Oil LLC | Warren, PA 16365 | Oil & Gas Operator | Dec 2025 |
| 31468 | Williams Brothers Engineering Company | Tulsa, OK 74134-5885 | Oil & Gas Operator | May 2013 |
| 31469 | Williams Dale | Konawa, OK 74849-9211 | Oil Operator | May 2026 |
| 31470 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | May 2026 |
| 31471 | Williams Deville Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Sep 2026 |
| 31472 | Williams Doyle Dba BCF Gas | Tulsa, OK 74114-7099 | Oil & Gas Operator | Jul 2023 |
| 31473 | Williams Exploration Company | | Oil & Gas Operator | Dec 1986 |
| 31474 | Williams Gas Pipeline Central, Inc. | Shawnee Mission, KS 66215 | Oil Operator | Sep 2010 |
| 31475 | Williams Inc | | Oil Operator | Dec 2019 |
| 31476 | Williams Jack W | Ardmore, OK 73401-4726 | Oil Operator | Feb 2017 |
| 31477 | Williams Kidd Drilling Corp | Claremore, OK 74017-0846 | Oil Operator | Jun 2013 |
| 31478 | Williams M H | Red Rock, OK 74651-0311 | Oil & Gas Operator | Jun 2023 |
| 31479 | Williams Oil Company | Midland, TX 79710 | Oil & Gas Operator | Sep 2026 |
| 31480 | Williams Operating Company LLC | Comanche, OK 73529 | Oil Operator | May 2026 |
| 31481 | Williams Petroleum Company, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Sep 2026 |
| 31482 | Williams Pressure Service Co. | | Oil Operator | Sep 1985 |
| 31483 | Williams Prod. Gulf Coast, L.P. | Benbrook, TX 76126 | Oil & Gas Operator | Jan 2012 |
| 31484 | Williams Producing Co | | Oil & Gas Operator | May 2026 |
| 31485 | Williams Production RMT Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2010 |
| 31486 | Williams Refractories Inc | Cushing, OK 74023 | Oil & Gas Operator | Feb 2015 |
| 31487 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Mar 2026 |
| 31488 | Williams Robert | | Oil & Gas Operator | Apr 1995 |
| 31489 | Williams Roger F | Tulsa, OK 74152-0951 | Oil & Gas Operator | May 2013 |
| 31490 | Williams Royce S | Healdton, OK 73438-0306 | Oil & Gas Operator | Apr 2014 |
| 31491 | Williams Ted H | | Oil & Gas Operator | Dec 2008 |
| 31492 | Williams Well Surveys Inc. | | Oil & Gas Operator | Dec 1996 |
| 31493 | Williams, A. Oil | Wichita Falls, TX 76308 | Oil Operator | Sep 2026 |
| 31494 | Williams, Clayton Energy, Inc. | Houston, TX 77070 | Oil & Gas Operator | Sep 2026 |
| 31495 | Williams, Clayton Energy, L.L.C | Midland, TX 79705 | Oil & Gas Operator | May 1993 |
| 31496 | Williams, Clayton W., Jr. | | Oil & Gas Operator | Jun 1989 |
| 31497 | Williams, Clayton W., Jr., Inc. | Midland, TX 79705 | Oil & Gas Operator | Mar 2008 |
| 31498 | Williams, Cynthia L. | Fredonia, NY 14063 | Gas Operator | Dec 2025 |
| 31499 | Williams, Donald M. | Eden, NY 14057 | Gas Operator | Dec 2025 |
| 31500 | Williams, Doyle | | Oil & Gas Operator | May 2026 |