| 17201 | Linder, John Operating Co., LLC | Gladewater, TX 75647 | Oil & Gas Operator | May 2025 |
| 17202 | Lindholm Oil, Inc. | Mathis, TX 78368 | Gas Operator | Sep 2002 |
| 17203 | Lindley, J. R. | Richardson, TX 75081 | Oil & Gas Operator | Jun 2002 |
| 17204 | Lindow Oil & Gas, LLC | Caldwell, TX 77836 | Oil & Gas Operator | May 2025 |
| 17205 | Lindsay Oil Operations | Wichita Falls, TX 76310 | Oil & Gas Operator | Jun 2010 |
| 17206 | Lindsay, Dick | Graham, TX 76450 | Oil & Gas Operator | May 2015 |
| 17207 | Lindsay, Robert L. | Wichita Falls, TX 76307 | Oil & Gas Operator | May 1995 |
| 17208 | Lindsey, W W | Pikeville, KY 41501 | Oil & Gas Operator | Dec 2023 |
| 17209 | Lindsey, W W & Elliott, W E | | Oil & Gas Operator | Dec 2023 |
| 17210 | Lindsey, W W & Elliott, W E Dba Lindsey & Elliott | | Oil & Gas Operator | Dec 2023 |
| 17211 | Lindsey, W W Et Al | | Gas Operator | Dec 2023 |
| 17212 | Lindstrom, Bruce C. | Sinclairville, NY 14782 | Gas Operator | Dec 2023 |
| 17213 | Line Energy LLC | Columbus, NE 68601 | Oil Operator | May 2025 |
| 17214 | Line, Jerry W., SR. | Tulsa, OK 74137 | Oil Operator | Nov 1996 |
| 17215 | Link Oil Company (The) | Tulsa, OK 74103-4113 | Oil & Gas Operator | Jan 2014 |
| 17216 | Linmar Energy Corporation | Denver, CO 80237 | Oil & Gas Operator | Oct 1987 |
| 17217 | Linmar Petroleum Company | Denver, CO 80237 | Oil & Gas Operator | Oct 1995 |
| 17218 | Linn Bros Oil & Gas Inc | Fruita, CO 81521 | Oil & Gas Operator | Apr 2025 |
| 17219 | Linn Mid-Continent Operating Inc | Houston, TX 77002-3018 | Oil & Gas Operator | Jun 2016 |
| 17220 | Linn Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 17221 | Linn Operating, Inc. | Houston, TX 77002 | Oil & Gas Operator | May 2017 |
| 17222 | Linn Opr Inc | Indiana, PA 15701-8914 | Oil & Gas Operator | Dec 2007 |
| 17223 | Linn Opr LLC | Indiana, PA 15701-8914 | Gas Operator | Dec 2004 |
| 17224 | Linn Western Operating Inc. | | Oil & Gas Operator | Jan 2018 |
| 17225 | Linop Corporation | Austin, TX 78728 | Oil & Gas Operator | May 2025 |
| 17226 | Linville Natural Gas Co. Inc. | | Gas Operator | Sep 2000 |
| 17227 | Lio-1 Corporation | Las Vegas, NV 89116 | Oil Operator | Aug 2024 |
| 17228 | Lion Energy Co LLC | Wexford, PA 15090-6315 | Oil & Gas Operator | Dec 2014 |
| 17229 | Lion Oil & Gas Company LLC | | Oil & Gas Operator | Dec 1993 |
| 17230 | Lion Oil Company | Chanute, KS 66720 | Oil Operator | Dec 1986 |
| 17231 | Lion Petroleum Company | Oklahoma City, OK 73120-4503 | Oil & Gas Operator | Aug 2015 |
| 17232 | Lion Production, Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2006 |
| 17233 | Lionheart Energy Corporation | Durango, CO 81301 | Oil & Gas Operator | May 2025 |
| 17234 | Lions Den Operating LLC | Carthage, TX 75633 | Gas Operator | May 2025 |
| 17235 | Lipan Flats Production, L.L.C. | San Angelo, TX 76905 | Oil Operator | May 2025 |
| 17236 | Lippizan Petroleum, Inc. | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2024 |
| 17237 | Lipps, Alfred J. | Burnsville, WV 26355-0000 | Oil & Gas Operator | Sep 2017 |
| 17238 | Liquid Petroleum Resources, Inc. | Amarillo, TX 79120 | Gas Operator | May 2025 |
| 17239 | Lischer, Michael J. | Elma, NY 14059 | Gas Operator | Dec 2023 |
| 17240 | Lishberg Petroleum Inc | Jerusaleum, OH 43747 | Oil & Gas Operator | Dec 2024 |
| 17241 | Lissner, Lindy | Jourdanton, TX 78026 | Oil & Gas Operator | May 2025 |
| 17242 | Lissolo J W | Yuma, AZ 85365 | Oil & Gas Operator | Feb 2017 |
| 17243 | Lissolo Timothy C | Newcastle, WY 82701 | Oil Operator | Apr 2025 |
| 17244 | Liston V Dean | Nowata, OK 74048-5200 | Oil & Gas Operator | Nov 2016 |
| 17245 | Litan, David | Wichita, KS 67218 | Oil Operator | Jun 1990 |
| 17246 | Litchfield Production Co. | Nederland, TX 77627 | Oil & Gas Operator | May 2025 |
| 17247 | Lithos Exploration Inc | | Oil & Gas Operator | Nov 2014 |
| 17248 | Litsey Exploration LLC | | Oil & Gas Operator | Feb 2025 |
| 17249 | Little & Whyte Operating, Inc. | Tyler, TX 75711 | Oil & Gas Operator | Mar 2008 |
| 17250 | Little Bear Oil & Gas Co LTD | Boca Rotan, FL 33431 | Oil & Gas Operator | Jan 1997 |
| 17251 | Little Bear Resources LLC | Stillwater, OK 74074-1388 | Oil & Gas Operator | Feb 2013 |
| 17252 | Little Chicago Oil & Gas Inc | Edmond, OK 73034-0809 | Oil & Gas Operator | Dec 2017 |
| 17253 | Little Chief Energy Corporation | Independence, KS 67301 | Oil Operator | Feb 2025 |
| 17254 | Little Creek Properties Inc. | | Oil Operator | Feb 2025 |
| 17255 | Little Cypress Oil & Gas, L.L.C. | Fullerton, CA 92834 | Oil Operator | May 2025 |
| 17256 | Little Drop Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2025 |
| 17257 | Little Guy Oil & Gas, Inc. | Pratt, KS 67124 | Oil Operator | Aug 2013 |
| 17258 | Little Iowa LLC | Sinclairville, NY 14782 | Gas Operator | Dec 2023 |
| 17259 | Little Jewel LLC | | Oil & Gas Operator | Feb 2025 |
| 17260 | Little Joe'S Oil Company | | Oil Operator | Jul 2020 |
| 17261 | Little Neil Oil | | Oil Operator | Jul 1994 |
| 17262 | Little O Oil Company | Velma, OK 73091-0425 | Oil & Gas Operator | Apr 2015 |
| 17263 | Little Oil & Gas | Pampa, TX 79065 | Oil & Gas Operator | May 2025 |
| 17264 | Little Oil And Gas, Inc. | Farmington, NM 87499 | Oil & Gas Operator | Aug 2005 |
| 17265 | Little Oil Company LLC | Cushing, OK 74023 | Oil Operator | Feb 2025 |
| 17266 | Little River Energy Company | Drumright, OK 74030 | Oil & Gas Operator | Mar 2025 |
| 17267 | Little Thunder, LLC | Bartlesville, OK 74003 | Oil Operator | Feb 2025 |
| 17268 | Little, Jay R. | Limestone, NY 14753 | Oil & Gas Operator | Dec 2023 |
| 17269 | Little, Lou Operating Co., Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2014 |
| 17270 | Little, Quintin Company,Inc.,The | Ardmore, OK 73402 | Oil & Gas Operator | May 2025 |
| 17271 | Littlefield Oil & Gas Company | | Oil & Gas Operator | Jan 1990 |
| 17272 | Littlepage, Tommy | Graham, TX 76450 | Oil & Gas Operator | May 1996 |
| 17273 | Littrell Chemical Inc | Cleo Springs, OK 73729 | Oil & Gas Operator | Jan 2005 |
| 17274 | Litzenberger Exploration | Waynoka, OK 73860 | Oil & Gas Operator | Jul 1996 |
| 17275 | Litzenberger Exploration Inc | Waynoka, OK 73860 | Oil & Gas Operator | Mar 2025 |
| 17276 | Live Oak Energy, Inc. | | Oil & Gas Operator | Dec 2011 |
| 17277 | Live Oak Gas Company | Dallas, TX 75251 | Oil & Gas Operator | May 2025 |
| 17278 | Live Oak Op & Production, L.L.C. | Austin, TX 78759 | Oil & Gas Operator | Nov 2011 |
| 17279 | Live Oak Petroleum, Inc. | Dallas, TX 75251 | Gas Operator | Mar 2001 |
| 17280 | Live Oak Reserves, Inc. | Houston, TX 77019 | Oil & Gas Operator | May 2025 |
| 17281 | Live Oak/Operations, Inc. | Houston, TX 77019 | Gas Operator | Jul 2011 |
| 17282 | Lively Energy & Development Corp | Boerne, TX 78015 | Oil & Gas Operator | May 2015 |
| 17283 | Lively Exploration Company | Houston, TX 77063 | Oil & Gas Operator | May 2025 |
| 17284 | Lively Resources, Inc. | Houston, TX 77056 | Gas Operator | Dec 1998 |
| 17285 | Livingston, David Oil Company | Haskell, TX 79521 | Oil & Gas Operator | Aug 2003 |
| 17286 | Livingston, F. L. | Megargel, TX 76370 | Oil & Gas Operator | May 2018 |
| 17287 | Lizard Lick Transport, LLC | Grandfalls, TX 79742 | Oil & Gas Operator | May 2025 |
| 17288 | Lizard Oil & Gas, LLC | Bloomfield, NM 87413 | Oil & Gas Operator | Feb 2017 |
| 17289 | LKD Corp. | Kilgore, TX 75663 | Oil & Gas Operator | Apr 2018 |
| 17290 | LKKTX 2018, LLC | Wichita Falls, TX 76305 | Oil Operator | May 2025 |
| 17291 | LKM Oil & Gas | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2024 |
| 17292 | LKM Oil And Gas LLC | Jacksboro, TX 76458 | Oil & Gas Operator | May 2025 |
| 17293 | Lko Operating LLC | | Oil & Gas Operator | Feb 2017 |
| 17294 | LL&N Oil & Gas Co., Inc. | | Oil Operator | Sep 1982 |
| 17295 | Llano Land & Exploration Co | Roswell, NM 88202 | Oil & Gas Operator | Sep 2004 |
| 17296 | Llano Management Company, Inc. | El Campo, TX 77437 | Gas Operator | Oct 2001 |
| 17297 | Llano Production Company | Fort Worth, TX 76102 | Oil & Gas Operator | May 2025 |
| 17298 | Llewellin Operating Company, LLC | Houston, TX 77024 | Oil & Gas Operator | Dec 2017 |
| 17299 | LLJ Ventures, LLC Dba Marker Oil & Gas | Roswell, NM 88202 | Oil & Gas Operator | Apr 2022 |
| 17300 | Llog Expl. Co. | Metairie, LA 70005 | Oil & Gas Operator | Jan 2003 |