| 31401 | Westfield Energy Corp. | | Oil & Gas Operator | Mar 1991 |
| 31402 | Westgate Oil Com | | Oil Operator | Mar 1993 |
| 31403 | Westgate Oil Company, Inc. | Eureka, KS 67045 | Oil Operator | Sep 2024 |
| 31404 | Westgate Petroleum, Inc. | Fritch, TX 79036 | Oil & Gas Operator | Nov 2001 |
| 31405 | Westhall Associates, Inc. | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Aug 1997 |
| 31406 | Westico Energy Co. | Abilene, TX 79605 | Oil & Gas Operator | Nov 2004 |
| 31407 | Westinghouse Elec Co LLC | Monroeville, PA 15146-2808 | Gas Operator | Dec 2023 |
| 31408 | Westlake Energy Consultants Corp | Thousand Oaks, CA 91362 | Oil & Gas Operator | Aug 2003 |
| 31409 | Westlake Energy Consultants, Inc. | Westlake VIllage, CA 91362 | Gas Operator | Dec 2019 |
| 31410 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 31411 | Westlands Resources Corporation | Monrovia, CA 91016 | Oil & Gas Operator | Dec 2024 |
| 31412 | Westmore Drillin | | Oil & Gas Operator | Oct 1995 |
| 31413 | Westmore Drilling Company, Inc. | Lawrence, KS 66047 | Oil & Gas Operator | Dec 2019 |
| 31414 | Westmoreland Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 31415 | Westoil LLC | Austin, TX 78747 | Oil & Gas Operator | Dec 2024 |
| 31416 | Weston Management & Operations Group | Centreville, MD 21617 | Oil Operator | May 1997 |
| 31417 | Westover Production Co., LLC | Kermit, TX 79745 | Oil & Gas Operator | Dec 2024 |
| 31418 | Westpark Petroleum, Inc. | Austin, TX 78755 | Oil & Gas Operator | Dec 2024 |
| 31419 | Westphal Oil & Gas Inc | Fort Smith, AR 72901-2199 | Oil & Gas Operator | Feb 2015 |
| 31420 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 31421 | Westport Oil And Gas Company Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
| 31422 | Westport Oil Com | | Oil Operator | Feb 1994 |
| 31423 | Westport Petrole | | Oil Operator | Feb 1985 |
| 31424 | Westridge Oil & Gas Properties | Mineral Wells, TX 76068 | Oil & Gas Operator | Dec 2024 |
| 31425 | Westshore Operating Inc | Naples, FL 34109-0549 | Oil & Gas Operator | Dec 2011 |
| 31426 | Westside Energy Op. Co., LP | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2008 |
| 31427 | Westside Farming Co. Inc. | | Gas Operator | Dec 1995 |
| 31428 | Westside Wells Inc | Altus, OK 73522-0077 | Oil & Gas Operator | Nov 2020 |
| 31429 | Weststar Exploration Co | Houston, TX 77027 | Oil & Gas Operator | Mar 2021 |
| 31430 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | Sep 2024 |
| 31431 | Weststar Operating Company | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2015 |
| 31432 | Weststar Resourc | | Oil Operator | Sep 1992 |
| 31433 | Westwin Energy I, LP | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 31434 | Westwind Exploration Company | Oklahoma City, OK 73123 | Oil & Gas Operator | Oct 1998 |
| 31435 | Westwood Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2013 |
| 31436 | Wetwick DRLG. & Prod. | Carlsbad, TX 76934 | Oil Operator | Dec 2024 |
| 31437 | Wetzel Oil Company | Austin, TX 78738 | Oil & Gas Operator | May 2007 |
| 31438 | Wetzel Producing Company | Duncan, OK 73533-4602 | Oil & Gas Operator | Aug 2024 |
| 31439 | Weva Oil Corp. | | Oil & Gas Operator | Nov 2019 |
| 31440 | Wexpro Company | Rock Springs, WY 82902-0458 | Oil & Gas Operator | Sep 2024 |
| 31441 | Wexpro Development Company | Salt Lake City, UT 84111 | Oil & Gas Operator | Aug 2024 |
| 31442 | Wexpro II Company | Salt Lake City, UT 84111 | Oil & Gas Operator | Sep 2024 |
| 31443 | Weyerhaeuser Company | Crossett, AR 71635 | Oil & Gas Operator | Sep 1994 |
| 31444 | WF Company, LTD. | Midland, TX 79705 | Oil & Gas Operator | Oct 1995 |
| 31445 | WF Operating LLC | Bartlesville, OK 74003 | Oil Operator | May 2023 |
| 31446 | WFD Oil Corporation | Edmond, OK 73012-0619 | Oil & Gas Operator | Sep 2024 |
| 31447 | WFMMS, Inc. | Batson, TX 77519 | Oil & Gas Operator | Dec 2024 |
| 31448 | WFW Production Company, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Dec 2024 |
| 31449 | WG Oil & Gas LLC | Okmulgee, OK 74447-7862 | Oil & Gas Operator | Dec 2022 |
| 31450 | WG Oil, LLC | Wichita Falls, TX 76308 | Oil Operator | Dec 2024 |
| 31451 | WG Operating, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | May 2012 |
| 31452 | WGM Gas Co Inc | Creekside, PA 15732-8500 | Oil & Gas Operator | Dec 2023 |
| 31453 | WGP-KHC, LLC | Houston, TX 77002 | Oil Operator | May 2017 |
| 31454 | WGR, Inc. | Houston, TX 77046 | Gas Operator | Jul 2007 |
| 31455 | Wgsi Enterprise LLC | Carrizo SPGS, TX 78834 | Gas Operator | Dec 2024 |
| 31456 | Wharton Oil Co. | Vernon, TX 76384 | Oil & Gas Operator | Dec 2000 |
| 31457 | Whatley, O. B. | Kilgore, TX 75662 | Oil & Gas Operator | Jun 1993 |
| 31458 | Whatley, O.B. Oil Company, Inc. | Bivins, TX 75555 | Oil & Gas Operator | Dec 2024 |
| 31459 | Wheat, Buck Resources, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Dec 2009 |
| 31460 | Wheatbelt Invest | | Oil Operator | Mar 1991 |
| 31461 | Wheatland Oil & | | Oil & Gas Operator | Aug 1984 |
| 31462 | Wheatland Oil Inc | Enid, OK 73702-1032 | Oil & Gas Operator | Mar 2015 |
| 31463 | Wheeler & Hanlin MFG Co Inc | Tulsa, OK 74148 | Oil Operator | Jun 1998 |
| 31464 | Wheeler Energy Co. | Tulsa, OK 74101 | Oil & Gas Operator | Sep 2024 |
| 31465 | Wheeler Energy, LLC | Tulsa, OK 74101 | Oil & Gas Operator | Dec 2024 |
| 31466 | Wheeler Michael D | Newark, OH 43055 | Oil & Gas Operator | Dec 2023 |
| 31467 | Wheeler Midstream LLC | Houston, TX 77002 | Oil & Gas Operator | May 2018 |
| 31468 | Wheeler Oil & Gas Inc | Tulsa, OK 74103-4293 | Oil & Gas Operator | Jan 2007 |
| 31469 | Wheeler Oil Co. (A) | Amarillo, TX 79114 | Gas Operator | Apr 2001 |
| 31470 | Wheeler Oil Company | Sperry, OK 74073-9417 | Oil & Gas Operator | Jul 2024 |
| 31471 | Wheeler Oil, LTD | Isonville, KY 41149 | Oil & Gas Operator | Dec 2022 |
| 31472 | Wheeler Operating Corporation | Fort Worth, TX 76101 | Oil & Gas Operator | Dec 2024 |
| 31473 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 31474 | Whelan Brothers, Inc. | Oil City, LA 71061 | Oil & Gas Operator | May 2015 |
| 31475 | Wheless Drilling Company | | Oil & Gas Operator | Dec 1989 |
| 31476 | Wheless Drilling Company Et Al | | Oil & Gas Operator | Dec 1989 |
| 31477 | Wheless DRLG Co &R.M.Bergstein | | Oil Operator | May 1986 |
| 31478 | Wheless Industries, Inc. | Shreveport, LA 71101-5301 | Oil & Gas Operator | Sep 2002 |
| 31479 | Wheless Industries-Pelto Oil | | Oil & Gas Operator | Dec 1989 |
| 31480 | Whidbey Resources Inc | Hudson, OH 44236 | Oil & Gas Operator | Dec 2016 |
| 31481 | Whilton Brooks A | Warren, PA 16365-8410 | Oil & Gas Operator | Dec 2023 |
| 31482 | Whiskey Bay Oil Company | | Oil & Gas Operator | May 1990 |
| 31483 | Whiskey River Oil & Gas LLC | Dallas, TX 75230 | Oil & Gas Operator | Apr 2024 |
| 31484 | Whisler Enterprise Company | Erie, CO 80516 | Oil & Gas Operator | Oct 2024 |
| 31485 | Whitacre Enterprises Inc | Graysville, OH 45734 | Oil & Gas Operator | Dec 2021 |
| 31486 | Whitaker Companies, Inc. | Humboldt, KS 66748 | Oil & Gas Operator | Aug 2023 |
| 31487 | Whitaker Energy Inc | Humble, TX 77346-1798 | Oil & Gas Operator | Jul 2024 |
| 31488 | Whitaker Enterpr | | Oil Operator | Oct 1992 |
| 31489 | Whitaker Harold | | Oil Operator | Aug 1990 |
| 31490 | Whitaker Properties, L. P. | Carthage, TX 75633 | Oil & Gas Operator | Sep 1997 |
| 31491 | Whitaker Raymond | Paul Valley, OK 73075-1041 | Oil & Gas Operator | May 2007 |
| 31492 | Whitaker, Jerry | Sunset, TX 76270 | Oil & Gas Operator | May 2022 |
| 31493 | Whitco Operating Company | Duncan, OK 73534-1936 | Oil & Gas Operator | Oct 2009 |
| 31494 | Whitco Petroleum, LP | Leoti, KS 67861 | Oil & Gas Operator | Jul 2024 |
| 31495 | Whitdale Inc | Cushing, OK 74023 | Oil & Gas Operator | Aug 2023 |
| 31496 | White & Bancroft Et Al | | Oil Operator | Jan 1996 |
| 31497 | White & Ellis DR | | Oil & Gas Operator | Aug 1995 |
| 31498 | White & Ellis Drilling, Inc. | Wichita, KS 67206 | Oil & Gas Operator | Jul 2024 |
| 31499 | White Alton L Trust | Nowata, OK 74048 | Oil & Gas Operator | Aug 2013 |
| 31500 | White Brothers Investment Inc | Dallas, TX 75201 | Oil & Gas Operator | Apr 2014 |