| 12301 | Wortham Operating, LLC | Holliday, TX 76366 | Oil & Gas Operator | Apr 2023 |
| 12302 | Wortham, E. H. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 12303 | Wortham, J. R. | Wichita Falls, TX 76310 | Oil & Gas Operator | Aug 2023 |
| 12304 | Wortham, Michael R. | Holliday, TX 76366 | Oil & Gas Operator | Mar 2008 |
| 12305 | WP Oil & Gas Exploration LLC | Loving, TX 76460 | Oil Operator | Sep 2026 |
| 12306 | WPH Operating Company | Amarillo, TX 79105 | Oil & Gas Operator | Mar 2017 |
| 12307 | WPX Energy Gulf Coast, LP | Benbrook, TX 76126 | Oil & Gas Operator | May 2012 |
| 12308 | WPX Energy Permian, LLC | Oklahoma City, OK 73102 | Oil & Gas Operator | Sep 2026 |
| 12309 | WR Resources, LLC | Jourdanton, TX 78026 | Oil & Gas Operator | Sep 2026 |
| 12310 | Wrath Energy, LLC | Odessa, TX 79760 | Oil Operator | Sep 2026 |
| 12311 | WRD Oil, LLC | Floresville, TX 78114 | Oil & Gas Operator | Sep 2026 |
| 12312 | WRD Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2026 |
| 12313 | Wright Brothers Energy, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Sep 2026 |
| 12314 | Wright Brothers Petroleum, LTD. | San Antonio, TX 78212 | Oil & Gas Operator | May 2002 |
| 12315 | Wright Oil And Gas, LLC | Benbrook, TX 76126 | Oil & Gas Operator | Sep 2026 |
| 12316 | Wright Operating, Inc. | Denison, TX 75020 | Oil & Gas Operator | Sep 2026 |
| 12317 | Wright Trucking, Inc. | Weatherford, OK 73096 | Oil & Gas Operator | Feb 2019 |
| 12318 | Wright, Robert W. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 12319 | Wright, Robert W. Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2000 |
| 12320 | WRT Energy Corporation | Oklahoma City, OK 73118 | Oil & Gas Operator | May 1998 |
| 12321 | WS Ritter Critters, LLC | Groom, TX 79039 | Gas Operator | Sep 2026 |
| 12322 | WSF, Inc. | Shreveport, LA 71101 | Oil & Gas Operator | Jun 2013 |
| 12323 | WSM | New Braunfels, TX 78132 | Oil Operator | Sep 2026 |
| 12324 | WT Fitts Operating | Bowie, TX 76230 | Oil & Gas Operator | Sep 2026 |
| 12325 | WTG Exploration | Midland, TX 79705 | Oil & Gas Operator | Sep 2026 |
| 12326 | WTG Exploration Inc | Midland, TX 79705 | Oil & Gas Operator | Dec 2023 |
| 12327 | WTP Energy, Inc. | Snyder, TX 79549 | Oil & Gas Operator | Sep 2026 |
| 12328 | WTR Operating LLC | Kilgore, TX 75663 | Oil & Gas Operator | Sep 2026 |
| 12329 | WTXR Operating (Texas), Inc. | Carrollton, TX 75007 | Oil Operator | Sep 2026 |
| 12330 | WVH Operating LLC | Aledo, TX 76008 | Oil Operator | Sep 2026 |
| 12331 | Wy Woodland Operating, LLC | Covington, TX 76636 | Oil & Gas Operator | Sep 2026 |
| 12332 | Wyatt Permian, LLC | Corpus Chrsti, TX 78426 | Oil & Gas Operator | Sep 2026 |
| 12333 | Wyco Oil & Gas LLC | Odessa, TX 79766 | Oil & Gas Operator | Jan 2024 |
| 12334 | Wylie Bros. Prod. & DRGL. Co,Inc | Baird, TX 79504 | Oil & Gas Operator | Sep 2026 |
| 12335 | Wylie, Fred, Jr. | Moran, TX 76464 | Oil & Gas Operator | Oct 2022 |
| 12336 | Wynco Energy, Inc. | Spring, TX 77393 | Oil & Gas Operator | Sep 2026 |
| 12337 | Wynn-Crosby Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2005 |
| 12338 | Wynn-Crosby Operating, LTD. | Dallas, TX 75201 | Oil & Gas Operator | Sep 2026 |
| 12339 | Wynne Petroleum Co. | Fort Worth, TX 76116 | Oil & Gas Operator | Nov 1997 |
| 12340 | Wyoming Diamond A LLC | Cheyenne, WY 82007 | Gas Operator | Sep 2026 |
| 12341 | X-L Energy Company | El Paso, TX 79902 | Oil & Gas Operator | Sep 2026 |
| 12342 | XCL-Texas, Inc. | Lafayette, LA 70503 | Oil & Gas Operator | Nov 2000 |
| 12343 | Xenon Energy, Inc. | Plano, TX 75074 | Oil & Gas Operator | Aug 2003 |
| 12344 | Xeric Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Jul 1997 |
| 12345 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 12346 | Xet, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2017 |
| 12347 | Xhorizons Energy LLC | Houston, TX 77079 | Oil Operator | Sep 2026 |
| 12348 | Xog Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 12349 | Xog Resources, LLC | Spring, TX 77379 | Oil & Gas Operator | Sep 2026 |
| 12350 | Xophi Energy, LLC | Arlington, TX 76006 | Oil & Gas Operator | Sep 2026 |
| 12351 | Xplor Energy Operating Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 2012 |
| 12352 | Xplore Operating, LLC | Arlington, TX 76001 | Oil & Gas Operator | Sep 2026 |
| 12353 | Xstar Resources LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2026 |
| 12354 | Xta Resources LLC | Del Valle, TX 78617 | Oil & Gas Operator | Sep 2026 |
| 12355 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Sep 2026 |
| 12356 | XTO Offshore Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2010 |
| 12357 | Xtra Energy, LLC | Fort Worth, TX 76161 | Oil & Gas Operator | Sep 2026 |
| 12358 | Xtreme Operating Company LLC | Flower Mound, TX 75022 | Oil Operator | Sep 2026 |
| 12359 | Xyz Oil, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Sep 2026 |
| 12360 | Y Oil Company Inc. | Cameron, TX 76520 | Oil & Gas Operator | Sep 2026 |
| 12361 | Yale Oil Association | Oklahoma City, OK 73105 | Gas Operator | Oct 2013 |
| 12362 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Jun 2026 |
| 12363 | Yanahosa, Inc. | Kountze, TX 77625 | Oil Operator | Sep 2026 |
| 12364 | Yarberry Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Sep 2026 |
| 12365 | Yarberry, E. E. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2015 |
| 12366 | Yarborough Oil & Gas L.P. | Midland, TX 79701 | Oil & Gas Operator | Oct 2000 |
| 12367 | Yarborough, W. B. | Midland, TX 79701 | Oil & Gas Operator | Nov 1995 |
| 12368 | Yates Drilling Company | Artesia, NM 88210 | Oil & Gas Operator | Dec 2021 |
| 12369 | Yates Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Sep 2026 |
| 12370 | Yates Industries, LLC | Santa Fe, NM 87501 | Oil & Gas Operator | Jun 2026 |
| 12371 | Yates Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 12372 | Yates, Harvey E. Company | Roswell, NM 88201 | Oil & Gas Operator | Dec 2002 |
| 12373 | Yeates Development Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 12374 | Yeates, F. L. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 1997 |
| 12375 | Yegen, E. C. | Casper, WY 82604 | Oil & Gas Operator | Mar 2015 |
| 12376 | Yellow Rose Oil & Gas Oper. Inc. | Cisco, TX 76437 | Oil & Gas Operator | Sep 2026 |
| 12377 | Yellow Rose Oil & Gas Operating | Cisco, TX 76437 | Oil & Gas Operator | Jan 1996 |
| 12378 | Yellowstone Petroleums Inc. | Canada, 00100 | Oil & Gas Operator | Apr 2026 |
| 12379 | Yentzen Investments, Inc. | Sugar Land, TX 77478 | Oil Operator | May 1993 |
| 12380 | Yet Profits, L.L.C. | Wichita Falls, TX 76308 | Oil Operator | Sep 2026 |
| 12381 | Yeti Exploration, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Sep 2026 |
| 12382 | Ynew Corporation | Austin, TX 78747 | Oil & Gas Operator | Sep 2026 |
| 12383 | Yobel, Inc. | Olney, TX 76374 | Oil & Gas Operator | Sep 2026 |
| 12384 | Yocham Oil And Gas Company | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 12385 | Yordes Energy, LLC | El Campo, TX 77437 | Oil Operator | Sep 2026 |
| 12386 | York & Price Petroleum Corp. | San Antonio, TX 78218 | Oil & Gas Operator | Jul 2004 |
| 12387 | York E & P, LLC | Boling, TX 77420 | Oil & Gas Operator | Sep 2026 |
| 12388 | Young Resources, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 1999 |
| 12389 | Young, Clint Inc. | Graham, TX 76450 | Oil & Gas Operator | Sep 2026 |
| 12390 | Young, John H., Inc. | Houston, TX 77027 | Oil & Gas Operator | Sep 2026 |
| 12391 | Young, L. M. | Brownwood, TX 76804 | Oil & Gas Operator | Aug 2003 |
| 12392 | Young, Marshall R., Oil Co. | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
| 12393 | Youngblood, C. S. III | Pampa, TX 79065 | Oil & Gas Operator | Dec 2001 |
| 12394 | Younger Energy Company | Wichita, KS 67206 | Oil & Gas Operator | Sep 2026 |
| 12395 | Yturri, Robert & John | San Antonio, TX 78205 | Oil & Gas Operator | Aug 2003 |
| 12396 | Yturria, Frank D. | Brownsville, TX 78520 | Oil & Gas Operator | Mar 2008 |
| 12397 | Yucca Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Sep 2026 |
| 12398 | Yukon Exploration Operating, LLC | Dallas, TX 75219 | Oil & Gas Operator | Sep 2026 |
| 12399 | Yuma E & P Company, Inc. | Houston, TX 77027 | Oil & Gas Operator | Sep 2026 |
| 12400 | Yuma Petroleum Company | Houston, TX 77027 | Oil & Gas Operator | Aug 2002 |