| 33101 | X-L Energy Company | El Paso, TX 79902 | Oil & Gas Operator | Apr 2025 |
| 33102 | X72 Operating Corp. | Plano, TX 75025 | Oil & Gas Operator | Apr 2025 |
| 33103 | Xae Corporation | Norman, OK 73072 | Oil & Gas Operator | Apr 2021 |
| 33104 | Xanadu Exploration Company | Broken Arrow, OK 74014 | Oil & Gas Operator | Feb 2025 |
| 33105 | XCL Assetco, LLC | Houston, TX 77007 | Oil & Gas Operator | Jan 2025 |
| 33106 | XCL-Louisiana, Inc. | | Oil & Gas Operator | Aug 1993 |
| 33107 | XCL-Texas, Inc. | Lafayette, LA 70503 | Oil & Gas Operator | Nov 2000 |
| 33108 | Xenex Incorporat | | Oil Operator | Mar 1991 |
| 33109 | Xenia Corporation, The | Garnett, KS 66032 | Oil Operator | Jan 2001 |
| 33110 | Xeno, Inc | Calgary, AB T2P 2S5 | Gas Operator | Dec 2001 |
| 33111 | Xenon Energy, Inc. | Plano, TX 75074 | Oil & Gas Operator | Aug 2003 |
| 33112 | Xeric Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Jul 1997 |
| 33113 | Xeric Oil & Gas Corporation | Midland, TX 79702 | Oil & Gas Operator | Apr 2014 |
| 33114 | Xet, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Aug 2017 |
| 33115 | Xhorizons Energy LLC | Houston, TX 77079 | Oil Operator | Apr 2025 |
| 33116 | Xmco Inc | | Oil & Gas Operator | Sep 1986 |
| 33117 | Xog Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 33118 | Xog Resources, LLC | Spring, TX 77379 | Oil & Gas Operator | Apr 2025 |
| 33119 | Xoil Inc | Aurora, CO 80016 | Oil & Gas Operator | Jul 2023 |
| 33120 | Xophi Energy, LLC | Arlington, TX 76006 | Oil & Gas Operator | Apr 2025 |
| 33121 | Xplor Corporation | | Oil & Gas Operator | Dec 2013 |
| 33122 | Xplor Energy Operating Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 2012 |
| 33123 | Xplore Operating, LLC | Arlington, TX 76001 | Oil & Gas Operator | Apr 2025 |
| 33124 | XPR Resources LLC | Canonsburg, PA 15317-5862 | Gas Operator | Feb 2025 |
| 33125 | XPR Wyoming LLC | | Oil & Gas Operator | Feb 2025 |
| 33126 | Xstar Resources LLC | Jacksboro, TX 76458 | Oil & Gas Operator | Apr 2025 |
| 33127 | Xta Resources LLC | Del Valle, TX 78617 | Oil & Gas Operator | Apr 2025 |
| 33128 | XTO Energy Inc. | Spring, TX 77389 | Oil & Gas Operator | Apr 2025 |
| 33129 | XTO Offshore Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 2010 |
| 33130 | XTO Permian Operating LLC. | Midland, TX 79707 | Oil & Gas Operator | Feb 2025 |
| 33131 | Xtra Energy Corporation | | Oil & Gas Operator | Jun 1989 |
| 33132 | Xtra Energy, LLC | Fort Worth, TX 76161 | Oil & Gas Operator | Apr 2025 |
| 33133 | Xtreme Operating Company LLC | Flower Mound, TX 75022 | Oil Operator | Apr 2025 |
| 33134 | XTX Inc. | | Gas Operator | Dec 2003 |
| 33135 | Xutapa Properties LLC | Pawhuska, OK 74056 | Oil & Gas Operator | Jan 2025 |
| 33136 | Xyz Oil, Inc. | Muenster, TX 76252 | Oil & Gas Operator | Apr 2025 |
| 33137 | Y D F Inc | Oklahoma City, OK 73128 | Oil & Gas Operator | Mar 2025 |
| 33138 | Y Oil Company Inc. | Cameron, TX 76520 | Oil & Gas Operator | Apr 2025 |
| 33139 | Yager Company | Hutchinson, KS 67502 | Oil & Gas Operator | Dec 2000 |
| 33140 | Yahn & Yahn, Inc. | Hammondsport, NY 14840 | Oil & Gas Operator | Dec 2023 |
| 33141 | Yale Oil Association, Inc. | Oklahoma City, OK 73105 | Oil & Gas Operator | Feb 2025 |
| 33142 | Yanahosa, Inc. | Kountze, TX 77625 | Oil Operator | Apr 2025 |
| 33143 | Yarberry Oil Company | Wichita Falls, TX 76308-5120 | Oil & Gas Operator | Apr 2015 |
| 33144 | Yarberry Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2025 |
| 33145 | Yarberry, E. E. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2015 |
| 33146 | Yarborough Oil & Gas L.P. | Midland, TX 79701 | Oil & Gas Operator | Oct 2000 |
| 33147 | Yarborough, W. B. | Midland, TX 79701 | Oil & Gas Operator | Nov 1995 |
| 33148 | Yarbrough Oil LP | Hobbs, NM 88241 | Oil & Gas Operator | Jan 2025 |
| 33149 | Yarbrough R E | Lago VIsta, TX 78645-0005 | Oil & Gas Operator | Mar 2015 |
| 33150 | Yarhola Production Company | Drumright, OK 74030 | Oil & Gas Operator | Feb 2025 |
| 33151 | Yarnell Ditching | Erie, KS 66733 | Gas Operator | Mar 2000 |
| 33152 | Yasny Corporation | | Oil Operator | Nov 1991 |
| 33153 | Yates Drilling Co & Myco Industrial Inc | Artesia, NM 88210 | Oil & Gas Operator | Dec 1993 |
| 33154 | Yates Drilling Company | Artesia, NM 88210 | Oil & Gas Operator | Dec 2021 |
| 33155 | Yates Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Apr 2025 |
| 33156 | Yates Industries, LLC | Santa Fe, NM 87501 | Oil & Gas Operator | Apr 2025 |
| 33157 | Yates Oil | Pawhuska, OK 74056 | Oil Operator | Mar 2015 |
| 33158 | Yates Oil & Gas Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 33159 | Yates Oil Company | | Oil Operator | Jul 1990 |
| 33160 | Yates, Harvey E. Company | Roswell, NM 88201 | Oil & Gas Operator | Dec 2002 |
| 33161 | Yeagle George W | Warren, PA 16365-0924 | Oil Operator | Dec 2010 |
| 33162 | Yearout, Dwain L. | South Haven, KS 67140 | Oil Operator | Oct 2024 |
| 33163 | Yeates Development Corporation | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 33164 | Yeates, F. L. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 1997 |
| 33165 | Yegen E C | Casper, WY 82604 | Oil & Gas Operator | Mar 2015 |
| 33166 | Yei Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 33167 | Yellow Creek Operating, LLC | | Oil & Gas Operator | Nov 2024 |
| 33168 | Yellow Dog Oil Company | | Oil Operator | Apr 1988 |
| 33169 | Yellow Rock, LLC | | Oil & Gas Operator | Dec 2024 |
| 33170 | Yellow Rose Energy, Inc. | Cottonwood Falls, KS 66845 | Gas Operator | Oct 1999 |
| 33171 | Yellow Rose Oil & Gas Oper. Inc. | Cisco, TX 76437 | Oil & Gas Operator | Apr 2025 |
| 33172 | Yellow Rose Oil & Gas Operating | Cisco, TX 76437 | Oil & Gas Operator | Jan 1996 |
| 33173 | Yellowstone Petroleums Inc. | Canada, 00100 | Oil & Gas Operator | Feb 2025 |
| 33174 | Yentzen Investments, Inc. | Sugar Land, TX 77478 | Oil Operator | May 1993 |
| 33175 | Yentzen Production, Inc. | | Oil Operator | Mar 1987 |
| 33176 | Yep, LLC | Palestine, TX 75802 | Oil Operator | Jan 2017 |
| 33177 | Yerby Bill | Ada, OK 74820-5404 | Oil Operator | Jan 2012 |
| 33178 | Yeskey, S. Kristine | Frewsburg, NY 14738 | Gas Operator | Dec 2023 |
| 33179 | Yeso Energy, Inc. | Roswell, NM 88202 | Oil & Gas Operator | May 2007 |
| 33180 | Yet Profits, L.L.C. | Wichita Falls, TX 76308 | Oil Operator | Apr 2025 |
| 33181 | Yeti Exploration, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Apr 2025 |
| 33182 | Yeubanks Barbara | Cromwell, OK 74837 | Oil Operator | Feb 2025 |
| 33183 | Yingling Oil, Inc. | Oklahoma City, OK 73118 | Oil & Gas Operator | Dec 2000 |
| 33184 | Ynew Corporation | Austin, TX 78747 | Oil & Gas Operator | Apr 2025 |
| 33185 | Yoak, IVy V. Dba Yoak Gas Company | Grantsville, WV 26147 | Gas Operator | Dec 2021 |
| 33186 | Yobel, Inc. | Olney, TX 76374 | Oil & Gas Operator | Apr 2025 |
| 33187 | Yocham Harlan E. | Sapulpa, OK 74066 | Oil Operator | Aug 2013 |
| 33188 | Yocham Oil And Gas Company | Midland, TX 79702 | Oil & Gas Operator | Apr 2025 |
| 33189 | Yocham Oil Company | | Oil Operator | Dec 2024 |
| 33190 | Yoder Darrell Dba Double "D" | Dayton, OH 45458 | Oil & Gas Operator | Dec 2015 |
| 33191 | Yoder Oil Compan | | Oil Operator | Sep 1988 |
| 33192 | Yoder, Alvin G. | Welda, KS 66091 | Oil Operator | Dec 2024 |
| 33193 | Yoelin Family Trust | | Oil & Gas Operator | Dec 2024 |
| 33194 | Yontz James | Jerusalem, OH 43747 | Oil & Gas Operator | Dec 2018 |
| 33195 | Yordes Energy, LLC | El Campo, TX 77437 | Oil Operator | Apr 2025 |
| 33196 | York & Price Petroleum Corp. | San Antonio, TX 78218 | Oil & Gas Operator | Jul 2004 |
| 33197 | York E & P, LLC | Boling, TX 77420 | Oil & Gas Operator | Apr 2025 |
| 33198 | Yorkshire-Pioneer Central School District | Yorkshire, NY 14173 | Gas Operator | Dec 2023 |
| 33199 | Yost & Yost, Inc. | | Oil & Gas Operator | Dec 2020 |
| 33200 | Yost Duane V | Mount Morris, PA 15349-1331 | Gas Operator | Dec 2024 |