| 31401 | Walker Oil & Gas | Early, TX 76802 | Oil & Gas Operator | Dec 2002 |
| 31402 | Walker Oil & Gas Corporaton | Roswell, NM 88202 | Oil & Gas Operator | Oct 1998 |
| 31403 | Walker Oil And Gas Inc | | Oil & Gas Operator | Jun 2021 |
| 31404 | Walker Oil And Gas LTD | Snyder, TX 79550 | Oil Operator | Dec 2025 |
| 31405 | Walker Operating (I) | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
| 31406 | Walker Paul | Duncan, OK 73533-9782 | Oil & Gas Operator | Feb 2022 |
| 31407 | Walker Resources Co, LLC | | Oil & Gas Operator | Dec 2013 |
| 31408 | Walker Tank Service, Inc | Utica, KS 67584 | Oil Operator | Aug 2022 |
| 31409 | Walker Well Service Inc | Big Bend, WV 26136-0000 | Oil & Gas Operator | Dec 2021 |
| 31410 | Walker'S Well Service | Gladewater, TX 75647 | Oil & Gas Operator | Aug 2003 |
| 31411 | Walker, Daniel J. | La Vernia, TX 78121 | Oil Operator | Dec 2025 |
| 31412 | Walker, Ervin Gilbert | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2020 |
| 31413 | Walker, Harrel L. | La Vernia, TX 78121 | Oil & Gas Operator | May 2023 |
| 31414 | Walker, Kent | Midland, TX 79704 | Oil & Gas Operator | Jun 2004 |
| 31415 | Walker, Tigner | Shreveport, LA 71138 | Oil & Gas Operator | Feb 2005 |
| 31416 | Walker-Wilson | | Oil & Gas Operator | Jul 1999 |
| 31417 | Walking X Oil Co. | Whiteface, TX 79379 | Oil & Gas Operator | Dec 2025 |
| 31418 | Wall Shelby | | Oil & Gas Operator | Oct 1998 |
| 31419 | Wallace D. Putman, Jr. | | Oil Operator | Jan 2025 |
| 31420 | Wallace Energy I | | Oil Operator | Mar 1990 |
| 31421 | Wallace Energy Inc | Denver, CO 80202-4327 | Oil Operator | Jun 2015 |
| 31422 | Wallace George C | Oklahoma City, OK 73120-0135 | Oil Operator | Nov 1994 |
| 31423 | Wallace John J Jr | Cooperstown, PA 16317-1909 | Oil & Gas Operator | Dec 2024 |
| 31424 | Wallace Oil & Ga | | Gas Operator | Oct 1995 |
| 31425 | Wallace Oil & Gas Inc | Oklahoma City, OK 73156 | Oil & Gas Operator | Dec 2025 |
| 31426 | Wallace Operating Company | | Oil & Gas Operator | Sep 1986 |
| 31427 | Wallace Operating Company LLC | Metairie, LA 70003 | Gas Operator | Dec 2025 |
| 31428 | Wallace Sherrie D | Dewey, OK 74029 | Oil & Gas Operator | Aug 2025 |
| 31429 | Wallace, Sharon J. | Clymer, NY 14724 | Gas Operator | Dec 2024 |
| 31430 | Wallen Production Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1996 |
| 31431 | Waller Brothers Inc | | Oil & Gas Operator | Jul 2004 |
| 31432 | Waller Oil, LLC | Stockton, KS 67669 | Oil Operator | Jun 2025 |
| 31433 | Waller, C.W. Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Dec 2025 |
| 31434 | Wallick Petroleum Co | Reynoldsburg, OH 43068 | Oil & Gas Operator | Dec 1994 |
| 31435 | Walling, Buster H | | Oil Operator | Jul 2022 |
| 31436 | Wallis Energy, Inc. | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |
| 31437 | Walls Energy, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2003 |
| 31438 | Walls, Charles A. | Caney, KS 67333 | Oil Operator | Aug 2016 |
| 31439 | Walls, G. M. & Frances, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Dec 2025 |
| 31440 | Wallway M J | Casper, WY 82601 | Oil & Gas Operator | Jan 1993 |
| 31441 | Wally Tucker | | Gas Operator | Dec 1994 |
| 31442 | Walrath Oil Co. LLC | | Oil Operator | Nov 2025 |
| 31443 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Dec 2025 |
| 31444 | Walsh Jr F Howard | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Oct 2025 |
| 31445 | Walsh Jr F Howard Opr Co Inc | Fort Worth, TX 76102-4773 | Oil & Gas Operator | Feb 2016 |
| 31446 | Walsh Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2022 |
| 31447 | Walsh Production Inc | | Oil & Gas Operator | Dec 2007 |
| 31448 | Walsh Resources, Inc. | Tyler, TX 75713 | Oil & Gas Operator | Dec 2025 |
| 31449 | Walsh, F H Jr. Operating Co. Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2019 |
| 31450 | Walsh, F. Howard, Jr. | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 1994 |
| 31451 | Walter Black Warrior Basin LLC | | Gas Operator | Dec 2014 |
| 31452 | Walter E & Bernice N Darnall | | Oil Operator | Aug 2025 |
| 31453 | Walter Exploration Company | Dallas, TX 75206 | Oil & Gas Operator | Dec 2025 |
| 31454 | Walter Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | May 2009 |
| 31455 | Walter H. Husfeld Oil Co LLC | Bowie, TX 76230 | Oil & Gas Operator | Dec 2025 |
| 31456 | Walter Oil & Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 31457 | Walter Parker Inc | Talala, OK 74080-3808 | Oil & Gas Operator | Aug 2025 |
| 31458 | Walter T. Lanaux | | Oil & Gas Operator | Nov 1990 |
| 31459 | Walter W. Heard, Jr. | | Oil & Gas Operator | Dec 1995 |
| 31460 | Walters Drilling | | Oil Operator | Mar 1988 |
| 31461 | Walters Frank | Pernell, OK 73076 | Oil & Gas Operator | Sep 2014 |
| 31462 | Walters Oil Company | Elmore City, OK 73433-9505 | Oil & Gas Operator | Sep 2025 |
| 31463 | Walters Oil LLC | Elmore City, OK 73433-8637 | Oil Operator | Apr 2020 |
| 31464 | Walters Oil Well Service Inc | Walters, OK 73572-0467 | Oil & Gas Operator | Nov 2000 |
| 31465 | Walters Production | | Oil Operator | Mar 2005 |
| 31466 | Walterscheid, A. D. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2014 |
| 31467 | Walterscheid, R. F. | Muenster, TX 76252 | Oil & Gas Operator | Oct 1993 |
| 31468 | Waltman Family LP | Maud, OK 74854-2603 | Oil Operator | Aug 2025 |
| 31469 | Waltman Oil & Gas | Maud, OK 74854-9739 | Oil Operator | Sep 2001 |
| 31470 | Walton Producing Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2005 |
| 31471 | Walton Producing Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 31472 | Walton Properties LTD. | Midland, TX 79702 | Oil & Gas Operator | Feb 2004 |
| 31473 | Walton, James A. | Midland, TX 79702 | Oil & Gas Operator | Oct 1994 |
| 31474 | Walton, Tara | Copan, OK 74022 | Oil Operator | Oct 2024 |
| 31475 | Walton, W. W. | Breckenridge, TX 76424 | Oil & Gas Operator | Sep 1994 |
| 31476 | Wam Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Dec 2016 |
| 31477 | Wandering Star Partners #1 LLLP | | Oil & Gas Operator | Apr 2015 |
| 31478 | Wandoo Energy, LLC | The Woodlands, TX 77382 | Oil & Gas Operator | Dec 2025 |
| 31479 | Wandover Charles T SR | Inverness, FL 34452-7527 | Oil & Gas Operator | Dec 2024 |
| 31480 | Wapco, Inc. | Cement, OK 73017 | Oil Operator | Sep 2025 |
| 31481 | Wapi Operating LLC | McCurtain, OK 74944 | Oil & Gas Operator | Aug 2025 |
| 31482 | Wapiti Energy, LLC | Houston, TX 77024 | Oil & Gas Operator | Jul 2006 |
| 31483 | Wapiti Oil & Gas LLC | Houston, TX 77024 | Oil Operator | Dec 2011 |
| 31484 | Wapiti Operating, LLC | Houston, TX 77043 | Oil & Gas Operator | Dec 2025 |
| 31485 | War Cry, LLC | Russell, KS 67665 | Oil Operator | Jun 2025 |
| 31486 | Warbonnet Exploration Company | Houston, TX 77056 | Oil & Gas Operator | Apr 2016 |
| 31487 | Ward & Son* Alfred | | Oil & Gas Operator | Jul 2021 |
| 31488 | Ward Feed Yard, Inc. | Larned, KS 67550 | Oil & Gas Operator | Mar 2016 |
| 31489 | Ward Kelly | Drumright, OK 74030-5661 | Oil & Gas Operator | Feb 2015 |
| 31490 | Ward M Haggard Oil And Gas Exploration Inc | | Oil Operator | Nov 2025 |
| 31491 | Ward Oil Co. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2025 |
| 31492 | Ward Oil Company An Okla Corp | McAlester, OK 74501 | Oil & Gas Operator | Feb 1993 |
| 31493 | Ward Petroleum Corporation | Enid, OK 73702 | Oil & Gas Operator | Sep 2025 |
| 31494 | Ward Trust | Spring, TX 77383 | Oil & Gas Operator | May 2013 |
| 31495 | Ward Williston Drilling Co | | Oil & Gas Operator | Dec 1994 |
| 31496 | Ward, Charles Oil Company | Olney, TX 76374 | Oil Operator | Dec 2025 |
| 31497 | Ward, E. B. | Alice, TX 78333 | Oil & Gas Operator | Jun 2001 |
| 31498 | Ward, L. S. | Graham, TX 76450 | Oil & Gas Operator | Jun 2001 |
| 31499 | Ward, Ted G. Jr. | Monahans, TX 79756 | Oil & Gas Operator | Nov 2000 |
| 31500 | Ward-Williston Company | | Oil & Gas Operator | Apr 2014 |