| 12701 | WTP Energy, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Feb 2026 |
| 12702 | WTR Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 12703 | WTXR Operating (Texas), Inc. | Carrollton, TX 75007 | Oil Operator | Feb 2026 |
| 12704 | WVH Operating LLC | Aledo, TX 76008 | Oil Operator | Feb 2026 |
| 12705 | WX Company LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2017 |
| 12706 | Wy Woodland Operating, LLC | Covington, TX 76636 | Oil & Gas Operator | Feb 2026 |
| 12707 | Wyatt Permian, LLC | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Feb 2026 |
| 12708 | Wyco Oil & Gas LLC | Odessa, TX 79766 | Oil & Gas Operator | Jan 2024 |
| 12709 | Wylie Bros. Prod. & DRGL. Co,Inc | Baird, TX 79504 | Oil & Gas Operator | Feb 2026 |
| 12710 | Wylie, Fred, Jr. | Moran, TX 76464 | Oil & Gas Operator | Oct 2022 |
| 12711 | Wynco Energy, Inc. | Spring, TX 77393 | Oil & Gas Operator | Feb 2026 |
| 12712 | Wynn-Crosby Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 12713 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 12714 | Wynne Petroleum Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 1997 |
| 12715 | Wyoming Diamond A LLC | Cheyenne, WY 82007 | Gas Operator | Feb 2026 |
| 12716 | X-L Energy Company | El Paso, TX 79902 | Oil & Gas Operator | Feb 2026 |
| 12717 | X72 Operating Corp. | Plano, TX 75025 | Oil & Gas Operator | Feb 2026 |
| 12718 | XCL-Texas, Inc. | Lafayette, LA 70503 | Oil & Gas Operator | Nov 2000 |
| 12719 | Xenon Energy, Inc. | Plano, TX 75074 | Oil & Gas Operator | Aug 2003 |
| 12720 | Xeric Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Jul 1997 |
| 12721 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 12722 | Xet, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2017 |
| 12723 | Xhorizons Energy LLC | Houston, TX 77079 | Oil Operator | Feb 2026 |
| 12724 | Xog Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 12725 | Xog Resources, LLC | Spring, TX 77379 | Oil & Gas Operator | Feb 2026 |
| 12726 | Xophi Energy, LLC | Arlington, TX 76006 | Oil & Gas Operator | Feb 2026 |
| 12727 | Xplor Energy Operating Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 2012 |
| 12728 | Xplore Operating, LLC | Arlington, TX 76001 | Oil & Gas Operator | Feb 2026 |
| 12729 | Xstar Resources LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 12730 | Xta Resources LLC | Uvalde, TX 78801 | Oil & Gas Operator | Feb 2026 |
| 12731 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Feb 2026 |
| 12732 | XTO Offshore Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2010 |
| 12733 | Xtra Energy, LLC | Fort Worth, TX 76161 | Oil & Gas Operator | Feb 2026 |
| 12734 | Xtreme Operating Company LLC | Flower Mound, TX 75022 | Oil Operator | Feb 2026 |
| 12735 | Xyz Oil, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Feb 2026 |
| 12736 | Y Oil Company Inc. | Cameron, TX 76520 | Oil & Gas Operator | Feb 2026 |
| 12737 | Yale Oil Association | Oklahoma City, OK 73105 | Gas Operator | Oct 2013 |
| 12738 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Dec 2025 |
| 12739 | Yanahosa, Inc. | Kountze, TX 77625 | Oil Operator | Feb 2026 |
| 12740 | Yarberry Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 12741 | Yarberry, E. E. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2015 |
| 12742 | Yarborough Oil & Gas L.P. | Midland, TX 79701 | Oil & Gas Operator | Oct 2000 |
| 12743 | Yarborough, W. B. | Midland, TX 79701 | Oil & Gas Operator | Nov 1995 |
| 12744 | Yates Drilling Company | Artesia, NM 88210 | Oil & Gas Operator | Dec 2021 |
| 12745 | Yates Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Feb 2026 |
| 12746 | Yates Industries, LLC | Santa Fe, NM 87501 | Oil & Gas Operator | Feb 2026 |
| 12747 | Yates Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 12748 | Yates, Harvey E. Company | Roswell, NM 88201 | Oil & Gas Operator | Dec 2002 |
| 12749 | Yeates Development Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 12750 | Yeates, F. L. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 1997 |
| 12751 | Yegen E C | Casper, WY 82604 | Oil & Gas Operator | Mar 2015 |
| 12752 | Yellow Rose Oil & Gas Oper. Inc. | Cisco, TX 76437 | Oil & Gas Operator | Feb 2026 |
| 12753 | Yellow Rose Oil & Gas Operating | Cisco, TX 76437 | Oil & Gas Operator | Jan 1996 |
| 12754 | Yellowstone Petroleums Inc. | Canada, 00100 | Oil & Gas Operator | Jun 2025 |
| 12755 | Yentzen Investments, Inc. | Sugar Land, TX 77478 | Oil Operator | May 1993 |
| 12756 | Yep, LLC | Palestine, TX 75802 | Oil Operator | Jan 2017 |
| 12757 | Yet Profits, L.L.C. | Wichita Falls, TX 76308 | Oil Operator | Feb 2026 |
| 12758 | Yeti Exploration, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2026 |
| 12759 | Ynew Corporation | Austin, TX 78747 | Oil & Gas Operator | Feb 2026 |
| 12760 | Yobel, Inc. | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 12761 | Yocham Oil And Gas Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 12762 | Yordes Energy, LLC | El Campo, TX 77437 | Oil Operator | Feb 2026 |
| 12763 | York & Price Petroleum Corp. | San Antonio, TX 78218 | Oil & Gas Operator | Jul 2004 |
| 12764 | York E & P, LLC | Boling, TX 77420 | Oil & Gas Operator | Feb 2026 |
| 12765 | Young Marshall R Oil Co | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
| 12766 | Young Resources, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1999 |
| 12767 | Young, Clint Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 12768 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | Feb 2026 |
| 12769 | Young, L. M. | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 12770 | Youngblood, C. S. III | Pampa, TX 79065 | Oil & Gas Operator | Dec 2001 |
| 12771 | Younger Energy Company | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 12772 | Yturri, Robert & John | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 12773 | Yturria, Frank D. | Brownsville, TX 78520 | Oil & Gas Operator | Mar 2008 |
| 12774 | Yucca Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 12775 | Yukon Exploration Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Feb 2026 |
| 12776 | Yuma E & P Company, Inc. | Houston, TX 77027 | Oil & Gas Operator | Feb 2026 |
| 12777 | Yuma Petroleum Company | Houston, TX 77027 | Oil & Gas Operator | Aug 2002 |
| 12778 | Yust, C. F. & R. L. | Batson, TX 77519 | Oil & Gas Operator | Sep 2002 |
| 12779 | Z&G Operating | Wichita Falls, TX 76302 | Oil Operator | Sep 2011 |
| 12780 | Z/F Little Buddy, L.P. | Tyler, TX 75710 | Oil & Gas Operator | Sep 2000 |
| 12781 | Zachary Oil Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2023 |
| 12782 | Zachris, Inc. | Mansfield, TX 76063 | Oil Operator | Oct 2021 |
| 12783 | Zachry Exploration, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2026 |
| 12784 | Zachry Exploration, LLC | San Antonio, TX 78224 | Oil & Gas Operator | Feb 2026 |
| 12785 | Zachry Exploration, LTD. | San Antonio, TX 78205 | Oil & Gas Operator | Jan 2009 |
| 12786 | Zachry Oil And Gas Properties | Midland, TX 79708 | Oil & Gas Operator | Feb 2026 |
| 12787 | Zachry Operating | Midland, TX 79708 | Oil & Gas Operator | Jan 2011 |
| 12788 | Zachry, H. B. Company | San Antonio, TX 78205 | Oil & Gas Operator | Apr 1994 |
| 12789 | Zackson Resources, Inc. | Houston, TX 77063 | Oil & Gas Operator | Feb 2026 |
| 12790 | Zadeck Energy Group | Shreveport, LA 71101 | Oil & Gas Operator | Dec 2011 |
| 12791 | Zaf Oil | San Antonio, TX 78230 | Oil & Gas Operator | Aug 2002 |
| 12792 | Zagava, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 12793 | Zajac Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Feb 2026 |
| 12794 | Zapata-Fender, L. L. C. | Tyler, TX 75710 | Oil & Gas Operator | Apr 2001 |
| 12795 | Zarvona Energy LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 12796 | Zavala Independent Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2007 |
| 12797 | Zaza Energy, LLC | Houston, TX 77010 | Oil & Gas Operator | Feb 2026 |
| 12798 | Zebra Oil And Gas | Lubbock, TX 79423 | Oil & Gas Operator | Aug 2002 |
| 12799 | Zebra Oil Company | El Campo, TX 77437 | Oil & Gas Operator | Feb 2026 |
| 12800 | Zelaya Oil And Gas, LLC | Premont, TX 78375 | Oil & Gas Operator | Feb 2026 |