| 31601 | Western Petroleum Company Inc | Tulsa, OK 74170-2676 | Oil & Gas Operator | Apr 2020 |
| 31602 | Western Petroleum Resources, Inc | Dallas, TX 75219 | Oil & Gas Operator | May 2021 |
| 31603 | Western Plains Resources LLC | Garden City, KS 67846 | Oil & Gas Operator | Mar 2025 |
| 31604 | Western Pride Resources, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Jan 2011 |
| 31605 | Western Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2025 |
| 31606 | Western Products Corporation | Fairview, OK 73737 | Oil & Gas Operator | Nov 2004 |
| 31607 | Western Properti | | Oil Operator | Oct 1987 |
| 31608 | Western Reserve Exp | Perry, OH 44081 | Oil & Gas Operator | Dec 2003 |
| 31609 | Western Reserves Corporation | Abilene, TX 79608 | Oil & Gas Operator | Jan 2008 |
| 31610 | Western Reserves Oil Co Inc | Midland, TX 79705 | Oil & Gas Operator | Oct 2020 |
| 31611 | Western Reserves Oil Co Inc And Sullivan And Co | | Oil & Gas Operator | Jul 2001 |
| 31612 | Western Resources And Clean Energy, LLC | Manti, UT 84642 | Oil & Gas Operator | Jan 2025 |
| 31613 | Western Resources, Inc. | | Oil Operator | Jun 1994 |
| 31614 | Western Resources{Wva}Inc | Chantilly, VA 22022 | Oil & Gas Operator | Dec 1994 |
| 31615 | Western Sky Oil & Gas | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 31616 | Western States International Inc. | | Oil & Gas Operator | Apr 2025 |
| 31617 | Western Tank Trucks Inc | Hennessey, OK 73742 | Oil Operator | Jul 2011 |
| 31618 | Westfield Energy Corp. | | Oil & Gas Operator | Mar 1991 |
| 31619 | Westgate Oil Com | | Oil Operator | Mar 1993 |
| 31620 | Westgate Oil Company, Inc. | Eureka, KS 67045 | Oil Operator | May 2025 |
| 31621 | Westgate Petroleum, Inc. | Fritch, TX 79036 | Oil & Gas Operator | Nov 2001 |
| 31622 | Westhall Associates, Inc. | Corpus Chrsti, TX 78477 | Oil & Gas Operator | Aug 1997 |
| 31623 | Westico Energy Co. | Abilene, TX 79605 | Oil & Gas Operator | Nov 2004 |
| 31624 | Westinghouse Elec Co LLC | Monroeville, PA 15146-2808 | Gas Operator | Dec 2024 |
| 31625 | Westlake Energy Consultants Corp | Thousand Oaks, CA 91362 | Oil & Gas Operator | Aug 2003 |
| 31626 | Westlake Energy Consultants, Inc. | Westlake VIllage, CA 91362 | Gas Operator | Dec 2019 |
| 31627 | Westland Oil Development Corp. | Conroe, TX 77305 | Oil & Gas Operator | Mar 2008 |
| 31628 | Westlands Resources Corporation | Monrovia, CA 91016 | Oil & Gas Operator | Jul 2025 |
| 31629 | Westmore Drillin | | Oil & Gas Operator | Oct 1995 |
| 31630 | Westmore Drilling Company, Inc. | Lawrence, KS 66047 | Oil & Gas Operator | Dec 2019 |
| 31631 | Westmoreland Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 31632 | Westoil LLC | Austin, TX 78747 | Oil & Gas Operator | Jul 2025 |
| 31633 | Weston Management & Operations Group | Centreville, MD 21617 | Oil Operator | May 1997 |
| 31634 | Westover Production Co., LLC | Kermit, TX 79745 | Oil & Gas Operator | Jul 2025 |
| 31635 | Westpark Petroleum, Inc. | Austin, TX 78755 | Oil & Gas Operator | Jul 2025 |
| 31636 | Westphal Oil & Gas Inc | Fort Smith, AR 72901-2199 | Oil & Gas Operator | Feb 2015 |
| 31637 | Westport Oil & Gas Company LP | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2007 |
| 31638 | Westport Oil And Gas Company Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2002 |
| 31639 | Westport Oil Com | | Oil Operator | Feb 1994 |
| 31640 | Westport Petrole | | Oil Operator | Feb 1985 |
| 31641 | Westridge Oil & Gas Properties | Mineral Wells, TX 76068 | Oil & Gas Operator | Jul 2025 |
| 31642 | Westshore Operating Inc | Naples, FL 34109-0549 | Oil & Gas Operator | Dec 2011 |
| 31643 | Westside Energy Op. Co., LP | Oklahoma City, OK 73142 | Oil & Gas Operator | Jun 2008 |
| 31644 | Westside Farming Co. Inc. | | Gas Operator | Dec 1995 |
| 31645 | Westside Wells Inc | Altus, OK 73521 | Oil & Gas Operator | Nov 2020 |
| 31646 | Weststar Exploration Co | Houston, TX 77027 | Oil & Gas Operator | Jun 2022 |
| 31647 | Weststar Oil & Gas Inc | Edmond, OK 73013 | Oil & Gas Operator | May 2025 |
| 31648 | Weststar Operating Company | Santa Anna, TX 76878 | Oil & Gas Operator | Mar 2015 |
| 31649 | Weststar Resourc | | Oil Operator | Sep 1992 |
| 31650 | Westwin Energy I, LP | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 31651 | Westwind Exploration Company | Oklahoma City, OK 73123 | Oil & Gas Operator | Oct 1998 |
| 31652 | Westwood Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2013 |
| 31653 | Wetwick DRLG. & Prod. | Carlsbad, TX 76934 | Oil Operator | Jul 2025 |
| 31654 | Wetzel Oil Company | Austin, TX 78738 | Oil & Gas Operator | May 2007 |
| 31655 | Wetzel Producing Company | Duncan, OK 73533-4602 | Oil & Gas Operator | Apr 2025 |
| 31656 | Weva Oil Corp. | | Oil & Gas Operator | Nov 2019 |
| 31657 | Wexpro Company | Rock Springs, WY 82902-0458 | Oil & Gas Operator | May 2025 |
| 31658 | Wexpro Development Company | Salt Lake City, UT 84111 | Oil & Gas Operator | May 2025 |
| 31659 | Wexpro II Company | Salt Lake City, UT 84111 | Oil & Gas Operator | May 2025 |
| 31660 | Weyerhaeuser Company | Crossett, AR 71635 | Oil & Gas Operator | Sep 1994 |
| 31661 | WF Company, LTD. | Midland, TX 79705 | Oil & Gas Operator | Oct 1995 |
| 31662 | WF Operating LLC | Bartlesville, OK 74003 | Oil Operator | May 2023 |
| 31663 | WFD Oil Corporation | Edmond, OK 73012 | Oil & Gas Operator | May 2025 |
| 31664 | WFMMS, Inc. | Batson, TX 77519 | Oil & Gas Operator | Jul 2025 |
| 31665 | WFW Production Company, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Jul 2025 |
| 31666 | WG Oil & Gas LLC | Okmulgee, OK 74447-7862 | Oil & Gas Operator | Dec 2022 |
| 31667 | WG Oil, LLC | Wichita Falls, TX 76308 | Oil Operator | Jul 2025 |
| 31668 | WG Operating, Inc. | Tulsa, OK 74153 | Oil & Gas Operator | May 2012 |
| 31669 | WGM Gas Co Inc | Creekside, PA 15732-8500 | Oil & Gas Operator | Dec 2024 |
| 31670 | Wgo Resources, LLC | | Oil & Gas Operator | May 2025 |
| 31671 | WGP-KHC, LLC | Houston, TX 77002 | Oil Operator | May 2017 |
| 31672 | WGR, Inc. | Houston, TX 77046 | Gas Operator | Jul 2007 |
| 31673 | Wgsi Enterprise LLC | Carrizo SPGS, TX 78834 | Gas Operator | Jul 2025 |
| 31674 | Wharton Oil Co. | Vernon, TX 76384 | Oil & Gas Operator | Dec 2000 |
| 31675 | Whatley, O. B. | Kilgore, TX 75662 | Oil & Gas Operator | Jun 1993 |
| 31676 | Whatley, O.B. Oil Company, Inc. | Bivins, TX 75555 | Oil & Gas Operator | Jul 2025 |
| 31677 | WHC Oper LLC | Commodore, PA 15729-9109 | Gas Operator | Dec 2024 |
| 31678 | Wheat, Buck Resources, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Dec 2009 |
| 31679 | Wheatbelt Invest | | Oil Operator | Mar 1991 |
| 31680 | Wheatland Oil & | | Oil & Gas Operator | Aug 1984 |
| 31681 | Wheatland Oil Inc | Enid, OK 73702-1032 | Oil & Gas Operator | Mar 2015 |
| 31682 | Wheeler & Hanlin MFG Co Inc | Tulsa, OK 74148 | Oil Operator | Jun 1998 |
| 31683 | Wheeler Energy Co. | Tulsa, OK 74101 | Oil & Gas Operator | Apr 2025 |
| 31684 | Wheeler Energy, LLC | Tulsa, OK 74101 | Oil & Gas Operator | Jul 2025 |
| 31685 | Wheeler Michael D | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 31686 | Wheeler Oil & Gas Inc | Tulsa, OK 74103-4293 | Oil & Gas Operator | Jan 2007 |
| 31687 | Wheeler Oil Co. (A) | Amarillo, TX 79114 | Gas Operator | Apr 2001 |
| 31688 | Wheeler Oil Company | Sperry, OK 74073-9417 | Oil & Gas Operator | Mar 2025 |
| 31689 | Wheeler Oil, LTD | Isonville, KY 41149 | Oil & Gas Operator | Dec 2023 |
| 31690 | Wheeler Operating Corporation | Fort Worth, TX 76101 | Oil & Gas Operator | Jul 2025 |
| 31691 | Wheeler Richard Jr | Oklahoma City, OK 73112-8857 | Oil & Gas Operator | Mar 2005 |
| 31692 | Whelan Brothers, Inc. | Oil City, LA 71061 | Oil & Gas Operator | May 2015 |
| 31693 | Wheless Drilling Company | | Oil & Gas Operator | Dec 1989 |
| 31694 | Wheless Drilling Company Et Al | | Oil & Gas Operator | Dec 1989 |
| 31695 | Wheless DRLG Co &R.M.Bergstein | | Oil Operator | May 1986 |
| 31696 | Wheless Industries, Inc. | Shreveport, LA 71101-5301 | Oil & Gas Operator | Sep 2002 |
| 31697 | Wheless Industries-Pelto Oil | | Oil & Gas Operator | Dec 1989 |
| 31698 | Whidbey Resources Inc | Hudson, OH 44236 | Oil & Gas Operator | Dec 2016 |
| 31699 | Whilton Brooks A | Warren, PA 16365-8410 | Oil & Gas Operator | Dec 2024 |
| 31700 | Whipple Run Oil & Gas Co | Grantsville, WV 26147 | Oil & Gas Operator | Dec 2006 |