| 16201 | Lakewood Petroleum | | Oil & Gas Operator | Sep 1993 |
| 16202 | Lakota Energy, LTD. | Paradise, TX 76073 | Oil & Gas Operator | Jul 2026 |
| 16203 | Lakota Oil & Gas | Comanche, OK 73529-9602 | Oil & Gas Operator | May 2014 |
| 16204 | Lakota Partnership | Denver, CO 80202 | Oil Operator | Oct 1990 |
| 16205 | Laloc | Aspermont, TX 79502 | Oil & Gas Operator | Sep 2025 |
| 16206 | Lam Financial Holdings LTD | Greenwood VIllage, CO 80111 | Oil Operator | May 2026 |
| 16207 | Lama Energy, L.L.C. | Midland, TX 79710 | Oil & Gas Operator | May 2024 |
| 16208 | Lamamco Drilling Company | Skiatook, OK 74070 | Oil & Gas Operator | Apr 2026 |
| 16209 | Lamar Energy | Nocona, TX 76255 | Oil Operator | Jul 2026 |
| 16210 | Lamar Energy LLC | | Oil & Gas Operator | Apr 2026 |
| 16211 | Lamar Exploration Corp | Orchard Park, NY 14217 | Gas Operator | Dec 1998 |
| 16212 | Lamar Hunt | | Oil & Gas Operator | Oct 2003 |
| 16213 | Lamar Hunt Trust Est Etal | | Oil & Gas Operator | Aug 1996 |
| 16214 | Lamar Hunt Trust Est. | | Oil & Gas Operator | Mar 1978 |
| 16215 | Lamar Matlock | | Oil Operator | Jan 2025 |
| 16216 | Lamar Oil & Gas Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 16217 | Lamar Oil & Gas Exploration | | Gas Operator | Oct 2013 |
| 16218 | Lamar Oil & Gas, Inc. | Corpus Christ, TX 78413 | Oil & Gas Operator | Jul 2026 |
| 16219 | Lamar Oil Company | Nocona, TX 76255 | Oil & Gas Operator | Oct 2015 |
| 16220 | Lamar Properties | Evansville, IN 47716 | Gas Operator | Dec 2024 |
| 16221 | Lamar Smith | | Oil Operator | Aug 1991 |
| 16222 | Lamarsa Corp. | Cut Bank, MT 59427 | Oil & Gas Operator | Apr 2026 |
| 16223 | Lamay Corporation | Rosenberg, TX 77471 | Oil & Gas Operator | Jul 2026 |
| 16224 | Lamb & Mize | Azle, TX 76020 | Oil & Gas Operator | Jul 2026 |
| 16225 | Lamb Alan L | Oklahoma City, OK 73120-7824 | Oil & Gas Operator | Feb 2020 |
| 16226 | Lamb, James L., Jr. | Austin, TX 78750 | Oil & Gas Operator | Mar 2016 |
| 16227 | Lambda Energy Resources LLC | | Oil & Gas Operator | May 2026 |
| 16228 | Lambdin William H | Oklahoma City, OK 73120 | Oil & Gas Operator | Nov 1998 |
| 16229 | Lambeck Petroleum, LLC | Stockdale, TX 78160 | Oil Operator | Jul 2026 |
| 16230 | Lamberd, Clayton | Olathe, KS 66061 | Oil Operator | Mar 2026 |
| 16231 | Lambert Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Apr 2026 |
| 16232 | Lambert Company The | Healdton, OK 73438-0962 | Oil & Gas Operator | Feb 2023 |
| 16233 | Lambert Oil & Gas LLC | Holdenville, OK 74848 | Oil & Gas Operator | May 2026 |
| 16234 | Lamberton Oil Co Inc | Tulsa, OK 74107 | Oil & Gas Operator | May 2013 |
| 16235 | Lamberton W J | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2015 |
| 16236 | Lamco Oil, LLC | Nocona, TX 76255 | Oil & Gas Operator | Jul 2026 |
| 16237 | Lamima Corporation | Ardmore, OK 73401 | Oil Operator | Nov 1994 |
| 16238 | Lamkin Oil Company | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 16239 | Laml Compaines LLC | Cleveland, OK 74020 | Oil Operator | Apr 2026 |
| 16240 | Lammerts Robert P | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2002 |
| 16241 | Lampert Exploration Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 16242 | Lamson Petroleum Corporation | | Oil & Gas Operator | Mar 1993 |
| 16243 | Lamson/Crocker Petroleum Corp. | | Oil & Gas Operator | May 1988 |
| 16244 | Lamson/Onshore Petroleum Corp. | | Oil & Gas Operator | Sep 1985 |
| 16245 | Lan Ma'S Oil And Gas LLC | Sugar Land, TX 77479 | Oil Operator | Dec 2025 |
| 16246 | Lancaster, Randy L. Dba Heritage Oil & Gas | Middlebourne, WV 26149 | Oil & Gas Operator | Dec 2021 |
| 16247 | Lance Exploration Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 1994 |
| 16248 | Lance Gas & Oil Productions | | Oil & Gas Operator | Jan 2025 |
| 16249 | Lance Leasing | Odessa, TX 79765 | Oil Operator | Jul 2026 |
| 16250 | Lance Oil & Gas Company Inc | Kirtland, NM 87417 | Oil & Gas Operator | Mar 2013 |
| 16251 | Lance Oil & Gas Productions | Bloomburg, TX 75556 | Oil & Gas Operator | Jul 2026 |
| 16252 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | May 2026 |
| 16253 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 16254 | Lancer Oil, Inc. | Piqua, KS 66761 | Oil Operator | May 2005 |
| 16255 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 16256 | Lancer Resources Company | | Oil & Gas Operator | Jan 1998 |
| 16257 | Lanco Oil & Gas, Inc. | Richland, TX 76681 | Oil & Gas Operator | Jan 1998 |
| 16258 | Land & Natural Res. Dev., Inc. | | Oil & Gas Operator | Apr 2007 |
| 16259 | Land And Natural Resource Development, Inc. | Northport, AL 35473 | Oil & Gas Operator | May 2026 |
| 16260 | Land, Cleatus H. Estate | Seguin, TX 78155 | Oil & Gas Operator | Mar 2001 |
| 16261 | Landaplenty, LLC | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 16262 | Landers & Musgrove | Okemah, OK 74859 | Oil & Gas Operator | Mar 2015 |
| 16263 | Landers & Musgrove Oil Co. Inc | Okemah, OK 74859-0266 | Oil & Gas Operator | Jan 2018 |
| 16264 | Landers & Waldman Inc | Okemah, OK 74859-0660 | Oil & Gas Operator | May 2013 |
| 16265 | Landers Oil & Gas Inc | Tulsa, OK 74132-2171 | Oil & Gas Operator | Apr 2026 |
| 16266 | Landers Production Company | Granite, OK 73547-0093 | Oil Operator | Apr 2014 |
| 16267 | Landes Explorati | | Oil Operator | Apr 1995 |
| 16268 | Landes, P. Todd, Jr. | Magnolia, AR 71753 | Oil Operator | Apr 1988 |
| 16269 | Landis, Andrew J. And Athanasia | Fredonia, NY 14063 | Gas Operator | Dec 2025 |
| 16270 | Landmark 4 LLC | Dalton, OH 44618-1111 | Oil & Gas Operator | Dec 2025 |
| 16271 | Landmark Drilling, L.L.C. | Waskom, TX 75692 | Oil Operator | Jul 2026 |
| 16272 | Landmark Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | May 2026 |
| 16273 | Landmark Energy Partners, LLC | Edmond, OK 73013 | Oil Operator | Jun 2026 |
| 16274 | Landmark Exploration Co | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2013 |
| 16275 | Landmark Exploration Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Jul 2026 |
| 16276 | Landmark Ip, LLC | Houston, TX 77002 | Oil & Gas Operator | Jul 2026 |
| 16277 | Landmark Oil & G | | Oil Operator | Nov 1987 |
| 16278 | Landmark Oil Exp | | Oil Operator | Sep 1994 |
| 16279 | Landmark Operating Company | Welty, OK 74833-3923 | Oil Operator | Aug 2015 |
| 16280 | Landmark Production Company | MC Gregor, TX 76657 | Oil & Gas Operator | Oct 2010 |
| 16281 | Landmark Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Mar 2026 |
| 16282 | Landmark Venture Group No. 1, Inc. | | Oil & Gas Operator | Jan 2025 |
| 16283 | Landmark Venture Group, Inc. | | Oil Operator | Dec 2008 |
| 16284 | Landmaster Partners, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jul 2026 |
| 16285 | Landmen Of Texas | Hondo, TX 78861 | Oil Operator | Feb 2007 |
| 16286 | Landmen Of Texas, Inc. | Hondo, TX 78861 | Oil Operator | Dec 2016 |
| 16287 | Landor Oil Co. | San Marcos, TX 78666 | Oil Operator | Jul 2026 |
| 16288 | Landowner | Honolulu, HI | Oil & Gas Operator | Dec 2008 |
| 16289 | Landprovest Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1993 |
| 16290 | Landreth, Robert E. | Midland, TX 79701 | Oil & Gas Operator | Jul 2026 |
| 16291 | Landrick O & G Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Jul 2026 |
| 16292 | Landrum Petroleum Co., Inc. | Burkburnett, TX 76354 | Oil Operator | Mar 2008 |
| 16293 | Landrum West, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 1997 |
| 16294 | Landrum, W. A. | Byers, TX 76357 | Oil & Gas Operator | Apr 2002 |
| 16295 | Lane Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Jul 2026 |
| 16296 | Lane, Lloyd L. | Buffalo, TX 75831 | Oil Operator | Jul 2026 |
| 16297 | Laneer Resources Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2026 |
| 16298 | Lanexco, Inc. | Sealy, TX 77474 | Oil & Gas Operator | Jul 2026 |
| 16299 | Lanford Drilling Co., Inc. | | Oil Operator | Jun 1996 |
| 16300 | Lang Herman Oil | | Oil & Gas Operator | Dec 1996 |