| 31501 | Wilcox Energy Company | | Oil & Gas Operator | Apr 2026 |
| 31502 | Wilcox Energy Company LLC | Rule, TX 79547 | Oil & Gas Operator | Jul 2026 |
| 31503 | Wilcox Oil Company | Rule, TX 79547 | Oil & Gas Operator | Aug 2008 |
| 31504 | Wilcox Oil, LLC | Wichita, KS 67235 | Oil Operator | Dec 2019 |
| 31505 | Wilcox Operating Company | | Oil Operator | Dec 1989 |
| 31506 | Wilcox Operating Corporation | Shreveport, LA 71115 | Oil & Gas Operator | Jul 2026 |
| 31507 | Wilcox Petroleum Operating LLC. | Rule, TX 79547 | Oil & Gas Operator | Jul 2026 |
| 31508 | Wilcox Pipe & Supply Co | Oklahoma City, OK 73189 | Oil & Gas Operator | May 2006 |
| 31509 | Wilcox Ventures, LLC | | Oil & Gas Operator | Apr 2026 |
| 31510 | Wilcoxson Brothers | Terral, OK 73569 | Oil Operator | Mar 2008 |
| 31511 | Wild Cat Operating Company | Victoria, TX 77903 | Oil & Gas Operator | Mar 2008 |
| 31512 | Wild Goose Storage LLC | | Gas Operator | Apr 2026 |
| 31513 | Wild Horse Energy | Paducah, TX 79248 | Oil & Gas Operator | Jul 2026 |
| 31514 | Wild Outdoors Oil LLC | Velma, OK 73491 | Oil & Gas Operator | May 2026 |
| 31515 | Wildcat Cement Co. | Shamrock, TX 79079 | Oil & Gas Operator | May 2015 |
| 31516 | Wildcat Energy, Inc. | Sedan, KS 67361 | Oil Operator | Feb 2001 |
| 31517 | Wildcat Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Jul 2021 |
| 31518 | Wildcat Equipment Co. Inc. | | Oil Operator | Dec 1987 |
| 31519 | Wildcat Midstream Caddo LLC | | Oil Operator | May 2017 |
| 31520 | Wildcat Oil & Gas LLC | Seneca, KS 66538 | Oil & Gas Operator | Mar 2026 |
| 31521 | Wildcat Oil Producer LLC | Wellsboro, PA 16901 | Oil & Gas Operator | Dec 2025 |
| 31522 | Wildcat Oil, LLC | Sebree, KY 42455 | Oil Operator | Dec 2021 |
| 31523 | Wildcat Resc Inc | | Oil & Gas Operator | Nov 1992 |
| 31524 | Wildcat Resources | | Oil & Gas Operator | Jun 2016 |
| 31525 | Wildcat Well Services, LTD. | | Oil Operator | Oct 1989 |
| 31526 | Wildco Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Jul 2026 |
| 31527 | Wilde, Henry & Janet | Union Springs, NY 13160 | Gas Operator | Dec 2025 |
| 31528 | Wildfire Energy Operating LLC | Houston, TX 77224 | Oil & Gas Operator | Jul 2026 |
| 31529 | Wildfire Oil & Gas Inc | Tulsa, OK 74136 | Oil & Gas Operator | Mar 2014 |
| 31530 | Wildfire Partners Inc | Ardmore, OK 73402 | Oil & Gas Operator | Dec 2009 |
| 31531 | Wildhorse Oil | Bogue, KS 67625 | Oil Operator | Oct 1994 |
| 31532 | Wildhorse Oil & Gas Corporation | Ardmore, OK 73402 | Oil & Gas Operator | May 2019 |
| 31533 | Wildhorse Operating Company | Ardmore, OK 73402 | Oil & Gas Operator | Jul 2026 |
| 31534 | Wildhorse Resources Management Co, LLC | | Oil & Gas Operator | Feb 2018 |
| 31535 | Wildhorse Resources MNGT Co, LLC | Oklahoma City, OK 73154 | Oil & Gas Operator | May 2019 |
| 31536 | Wildhorse Resources, LLC | Houston, TX 77279 | Oil & Gas Operator | Feb 2015 |
| 31537 | Wildlife Management Group LLC | Clymer, NY 14724 | Gas Operator | Dec 2025 |
| 31538 | Wildrose Resources Corp | Englewood, CO 80110-6007 | Oil & Gas Operator | Mar 2004 |
| 31539 | Wildwood Operating LLC | Hennessey, OK 73742 | Oil & Gas Operator | Apr 2026 |
| 31540 | Wiley Lease Co., LTD. | Jourdanton, TX 78026 | Oil Operator | Jul 2026 |
| 31541 | Wilham Investments, Inc. | Pampa, TX 79065 | Oil & Gas Operator | Jan 2020 |
| 31542 | Wilhite Productions | MC Dade, TX 78650 | Oil & Gas Operator | Oct 2012 |
| 31543 | Wilkerson Oil Company | | Oil Operator | Dec 1991 |
| 31544 | Wilkes Energy Inc | Akron, OH 44308 | Oil & Gas Operator | Dec 2022 |
| 31545 | Wilkins L L E & O Company | Shawnee, OK 74801 | Oil & Gas Operator | Aug 2018 |
| 31546 | Wilkinson Drilli | | Oil Operator | Dec 1991 |
| 31547 | Wilkinson George R | St Augustine, FL 32080-5352 | Oil & Gas Operator | Jun 2011 |
| 31548 | Wilkinson Oil & Gas LLC | Duncan, OK 73533-2048 | Oil Operator | Apr 2026 |
| 31549 | Wilkison Richard W | Oklahoma City, OK 73107 | Oil Operator | Mar 2011 |
| 31550 | Wilkowski, Robert William Jr. & Francis, Julia | Lancaster, NY 14086 | Gas Operator | Dec 2025 |
| 31551 | Will Energy Corporation | Dallas, TX 75201 | Oil & Gas Operator | Apr 2026 |
| 31552 | Will Haristy, Jr. | | Oil & Gas Operator | Nov 2024 |
| 31553 | Will McCasland Ind | Hobbs, NM 88240 | Gas Operator | Feb 2008 |
| 31554 | Will-Drill Operating, L.L.C. | Shreveport, LA 71105 | Oil & Gas Operator | Jul 2026 |
| 31555 | Will-Drill Production Co., Inc. | Shreveport, LA 71105 | Oil & Gas Operator | Jul 2026 |
| 31556 | Willa Mae Overman LLC | Ponca City, OK 74601-9451 | Oil & Gas Operator | Aug 2023 |
| 31557 | Willard M Cline | Bradford, PA 16701-1715 | Oil & Gas Operator | Dec 2022 |
| 31558 | Willard Pease Drilling Co | Grand Junction, CO 81501 | Oil & Gas Operator | Dec 1983 |
| 31559 | Willey George | Newark, OH 43058 | Oil & Gas Operator | Dec 2025 |
| 31560 | William B Renfro LLC | | Oil Operator | Dec 2020 |
| 31561 | William C Bahlburg | Dallas, TX 75240 | Oil & Gas Operator | Dec 1994 |
| 31562 | William D. Pittman | | Oil & Gas Operator | Jun 1991 |
| 31563 | William F. Powell | | Oil & Gas Operator | Jun 1979 |
| 31564 | William Fleming Productions, LLC | Wichita Falls, TX 76305 | Oil Operator | Feb 2025 |
| 31565 | William G Bush | Grand Junction, CO 81506 | Oil & Gas Operator | Jun 2012 |
| 31566 | William G Smith Oil, LLC | Osawatomie, KS 66064 | Oil Operator | Apr 2014 |
| 31567 | William Herbert Hunt | | Oil & Gas Operator | Mar 1986 |
| 31568 | William Jefferson Turner | Marlow, OK 73055 | Oil & Gas Operator | Apr 2007 |
| 31569 | William K. Barker & Associates | | Oil & Gas Operator | Dec 1986 |
| 31570 | William L Horner Energy | Oliveburg, PA 15764-8411 | Gas Operator | Dec 2014 |
| 31571 | William Lagnion | | Oil & Gas Operator | Aug 1998 |
| 31572 | William M Mauersberg | Sigel, PA 15860-2402 | Oil & Gas Operator | Dec 2025 |
| 31573 | William M. Williams | | Oil Operator | May 2018 |
| 31574 | William Marvin Hobbs, SR. | | Oil Operator | Aug 2002 |
| 31575 | William McIntire Coal Oil & Gas | Shelocta, PA 15774-0171 | Oil & Gas Operator | May 2022 |
| 31576 | William S Miller Inc | Hanoverton, OH 44423 | Oil & Gas Operator | Dec 2025 |
| 31577 | William Southwell & Son Oil LLC | Warren, PA 16365 | Oil & Gas Operator | Dec 2025 |
| 31578 | Williams Brothers Engineering Company | Tulsa, OK 74134-5885 | Oil & Gas Operator | May 2013 |
| 31579 | Williams Dale | Konawa, OK 74849-9211 | Oil Operator | Apr 2026 |
| 31580 | Williams Dale And Dorothy Family Trust | Maud, OK 74854-2011 | Oil & Gas Operator | Apr 2026 |
| 31581 | Williams Deville Operating, Inc. | Fort Worth, TX 76116 | Oil & Gas Operator | Jul 2026 |
| 31582 | Williams Doyle Dba BCF Gas | Tulsa, OK 74114-7099 | Oil & Gas Operator | Jul 2023 |
| 31583 | Williams Exploration Company | | Oil & Gas Operator | Dec 1986 |
| 31584 | Williams Gas Pipeline Central, Inc. | Shawnee Mission, KS 66215 | Oil Operator | Sep 2010 |
| 31585 | Williams Inc | | Oil Operator | Dec 2019 |
| 31586 | Williams Jack W | Ardmore, OK 73401-4726 | Oil Operator | Feb 2017 |
| 31587 | Williams Kidd Drilling Corp | Claremore, OK 74017-0846 | Oil Operator | Jun 2013 |
| 31588 | Williams M H | Red Rock, OK 74651-0311 | Oil & Gas Operator | Jun 2023 |
| 31589 | Williams Oil Company | Midland, TX 79710 | Oil & Gas Operator | Jul 2026 |
| 31590 | Williams Operating Company LLC | Comanche, OK 73529 | Oil Operator | Apr 2026 |
| 31591 | Williams Petroleum Company, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Jul 2026 |
| 31592 | Williams Pressure Service Co. | | Oil Operator | Sep 1985 |
| 31593 | Williams Prod. Gulf Coast, L.P. | Benbrook, TX 76126 | Oil & Gas Operator | Jan 2012 |
| 31594 | Williams Producing Co | | Oil & Gas Operator | Mar 2026 |
| 31595 | Williams Production RMT Company | Denver, CO 80202 | Oil & Gas Operator | Oct 2010 |
| 31596 | Williams Refractories Inc | Cushing, OK 74023 | Oil & Gas Operator | Feb 2015 |
| 31597 | Williams Reid Oil Co | Dallas, TX 75234 | Oil & Gas Operator | Mar 2026 |
| 31598 | Williams Robert | | Oil & Gas Operator | Apr 1995 |
| 31599 | Williams Roger F | Tulsa, OK 74152-0951 | Oil & Gas Operator | May 2013 |
| 31600 | Williams Royce S | Healdton, OK 73438-0306 | Oil & Gas Operator | Apr 2014 |