| 17101 | Lamberton W J | Tulsa, OK 74119 | Oil & Gas Operator | Apr 2015 |
| 17102 | Lamco Oil, LLC | Nocona, TX 76255 | Oil & Gas Operator | Feb 2026 |
| 17103 | Lamesa Crude | Abilene, TX 79605 | Oil & Gas Operator | Feb 2015 |
| 17104 | Lamima Corporation | Ardmore, OK 73401 | Oil Operator | Nov 1994 |
| 17105 | Lamkin Oil Company | Stephens, AR 71764 | Oil Operator | Jan 2025 |
| 17106 | Laml Compaines LLC | Cleveland, OK 74020 | Oil Operator | Nov 2025 |
| 17107 | Lammerts Robert P | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2002 |
| 17108 | Lamoreaux Homes | | Oil & Gas Operator | Dec 1994 |
| 17109 | Lampert Exploration Corporation | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 17110 | Lamson Petroleum Corporation | | Oil & Gas Operator | Mar 1993 |
| 17111 | Lamson/Crocker Petroleum Corp. | | Oil & Gas Operator | May 1988 |
| 17112 | Lamson/Onshore Petroleum Corp. | | Oil & Gas Operator | Sep 1985 |
| 17113 | Lan Ma'S Oil And Gas LLC | Sugar Land, TX 77479 | Oil Operator | Dec 2025 |
| 17114 | Lancaster, Randy L. Dba Heritage Oil & Gas | Middlebourne, WV 26149 | Oil & Gas Operator | Dec 2021 |
| 17115 | Lance Exploration Company | Fort Worth, TX 76102 | Oil & Gas Operator | Jul 1994 |
| 17116 | Lance Gas & Oil Productions | | Oil & Gas Operator | Jan 2025 |
| 17117 | Lance Leasing | Odessa, TX 79765 | Oil Operator | Feb 2026 |
| 17118 | Lance Oil & Gas Company Inc | Kirtland, NM 87417 | Oil & Gas Operator | Mar 2013 |
| 17119 | Lance Oil & Gas Productions | Bloomburg, TX 75556 | Oil & Gas Operator | Feb 2026 |
| 17120 | Lance Ruffel Oil & Gas LLC | Oklahoma City, OK 73102-5632 | Oil & Gas Operator | Dec 2025 |
| 17121 | Lancer Energy Corporation | Oklahoma City, OK 73132-5903 | Oil & Gas Operator | May 2015 |
| 17122 | Lancer Oil, Inc. | Piqua, KS 66761 | Oil Operator | May 2005 |
| 17123 | Lancer Petroleum Corporation | Irving, TX 75014 | Oil & Gas Operator | Feb 2014 |
| 17124 | Lancer Resources Company | | Oil & Gas Operator | Jan 1998 |
| 17125 | Lanco Oil & Gas, Inc. | Richland, TX 76681 | Oil & Gas Operator | Jan 1998 |
| 17126 | Land & Natural Res. Dev., Inc. | | Oil & Gas Operator | Apr 2007 |
| 17127 | Land And Natural Resource Development, Inc. | Northport, AL 35473 | Oil & Gas Operator | Dec 2025 |
| 17128 | Land, Cleatus H. Estate | Seguin, TX 78155 | Oil & Gas Operator | Mar 2001 |
| 17129 | Landaplenty, LLC | Glenville, WV 26351 | Oil & Gas Operator | Dec 2021 |
| 17130 | Landers & Musgrove | Okemah, OK 74859 | Oil & Gas Operator | Mar 2015 |
| 17131 | Landers & Musgrove Oil Co. Inc | Okemah, OK 74859-0266 | Oil & Gas Operator | Jan 2018 |
| 17132 | Landers & Waldman Inc | Okemah, OK 74859-0660 | Oil & Gas Operator | May 2013 |
| 17133 | Landers Oil & Gas Inc | Tulsa, OK 74132-2171 | Oil & Gas Operator | Nov 2025 |
| 17134 | Landers Production Company | Granite, OK 73547-0093 | Oil Operator | Apr 2014 |
| 17135 | Landes Explorati | | Oil Operator | Apr 1995 |
| 17136 | Landes, P. Todd, Jr. | Magnolia, AR 71753 | Oil Operator | Apr 1988 |
| 17137 | Landis, Andrew J. And Athanasia | Fredonia, NY 14063 | Gas Operator | Dec 2024 |
| 17138 | Landmark 4 LLC | Dalton, OH 44618-1111 | Oil & Gas Operator | Dec 2024 |
| 17139 | Landmark Drilling, L.L.C. | Waskom, TX 75692 | Oil Operator | Feb 2026 |
| 17140 | Landmark Energy LLC | Seminole, OK 74868 | Oil & Gas Operator | Dec 2025 |
| 17141 | Landmark Energy Partners, LLC | Edmond, OK 73013 | Oil Operator | Oct 2025 |
| 17142 | Landmark Exploration Co | Tulsa, OK 74103 | Oil & Gas Operator | Oct 2013 |
| 17143 | Landmark Exploration Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Feb 2026 |
| 17144 | Landmark Ip, LLC | Houston, TX 77002 | Oil & Gas Operator | Feb 2026 |
| 17145 | Landmark Oil & G | | Oil Operator | Nov 1987 |
| 17146 | Landmark Oil Exp | | Oil Operator | Sep 1994 |
| 17147 | Landmark Operating Company | Welty, OK 74833-3923 | Oil Operator | Aug 2015 |
| 17148 | Landmark Production Company | MC Gregor, TX 76657 | Oil & Gas Operator | Oct 2010 |
| 17149 | Landmark Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Sep 2025 |
| 17150 | Landmark Venture Group No. 1, Inc. | | Oil & Gas Operator | Jan 2025 |
| 17151 | Landmark Venture Group, Inc. | | Oil Operator | Dec 2008 |
| 17152 | Landmaster Partners, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Feb 2026 |
| 17153 | Landmen Of Texas | Hondo, TX 78861 | Oil Operator | Feb 2007 |
| 17154 | Landmen Of Texas, Inc. | Hondo, TX 78861 | Oil Operator | Dec 2016 |
| 17155 | Landor Oil Co. | San Marcos, TX 78666 | Oil Operator | Feb 2026 |
| 17156 | Landowner | Honolulu, HI | Oil & Gas Operator | Dec 2008 |
| 17157 | Landprovest Inc | Cambridge, OH 43725 | Oil & Gas Operator | Dec 1993 |
| 17158 | Landreth, Robert E. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 17159 | Landrick O & G Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2026 |
| 17160 | Landrum Petroleum Co., Inc. | Burkburnett, TX 76354 | Oil Operator | Mar 2008 |
| 17161 | Landrum West, Inc. | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 1997 |
| 17162 | Landrum, W. A. | Byers, TX 76357 | Oil & Gas Operator | Apr 2002 |
| 17163 | Lane Oil Company, LLC | Northern Cambria, PA 15714 | Oil Operator | Dec 2024 |
| 17164 | Lane Operating Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 17165 | Lane, Lloyd L. | Buffalo, TX 75831 | Oil Operator | Feb 2026 |
| 17166 | Laneer Resources Company | Abilene, TX 79608 | Oil & Gas Operator | Feb 2026 |
| 17167 | Laner Oil | Claremore, OK 74017-0487 | Gas Operator | Jan 2008 |
| 17168 | Lanexco Inc. Dba Lanexco New Mexico | Sealy, TX 77474 | Oil & Gas Operator | Mar 2022 |
| 17169 | Lanexco, Inc. | Sealy, TX 77474 | Oil & Gas Operator | Feb 2026 |
| 17170 | Lanford Drilling Co., Inc. | | Oil Operator | Jun 1996 |
| 17171 | Lang Herman Oil | | Oil & Gas Operator | Dec 1996 |
| 17172 | Lang Larry D | Beverly, OH 45715 | Oil & Gas Operator | Dec 2024 |
| 17173 | Lang, Herman - Marital Trust | Garden City, KS 67846 | Oil & Gas Operator | Sep 2025 |
| 17174 | Lang, Kenneth R. | Garden City, KS 67846 | Oil & Gas Operator | Sep 2025 |
| 17175 | Langasco Energy Corp | Alliance, OH 44601 | Oil & Gas Operator | Dec 1987 |
| 17176 | Langford & Brigham Operating LLC | Austin, TX 78730 | Oil & Gas Operator | Feb 2026 |
| 17177 | Langford Production Company, LLC | Haskell, TX 79521 | Oil & Gas Operator | Feb 2026 |
| 17178 | Langford, G. E. | Abilene, TX 79604 | Oil & Gas Operator | Jan 2002 |
| 17179 | Langford, R. C. Operating Co. | Rule, TX 79547 | Oil & Gas Operator | Mar 1994 |
| 17180 | Langham Petroleum Exp Co, LLC | Houston, TX 77056 | Oil & Gas Operator | Jul 2002 |
| 17181 | Langham Petroleum Expl. Corp. | Houston, TX 77056 | Oil & Gas Operator | Dec 2009 |
| 17182 | Langley Energy | Euless, TX 76040 | Gas Operator | Jan 2016 |
| 17183 | Langley Harold | Graham, OK 73437 | Oil Operator | Oct 2025 |
| 17184 | Langley, James Operating Company, Inc | Smackover, AR 71762 | Oil & Gas Operator | Jan 2025 |
| 17185 | Langley, Jerry Oil Company LLC | Smackover, AR 71762 | Oil Operator | Jan 2025 |
| 17186 | Langston Oil & Gas LLC | Wichita, KS 67202 | Oil Operator | Aug 2025 |
| 17187 | Lankford & Nance | | Gas Operator | Dec 2010 |
| 17188 | Lankford Oil Co. | Weatherford, TX 76086 | Oil & Gas Operator | Jul 1999 |
| 17189 | Lankford, Dan L. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 17190 | Lanmarc Resources | | Oil Operator | Dec 2003 |
| 17191 | Lanoco, Inc. | | Oil & Gas Operator | Sep 2002 |
| 17192 | Lanphars Inc | | Gas Operator | Dec 1985 |
| 17193 | Lansden Operating Co LLC | Norman, OK 73070 | Oil & Gas Operator | Dec 1997 |
| 17194 | Lansing Energy C | | Oil Operator | Jun 2006 |
| 17195 | Lansing Energy Operations | Wichita, KS 67202 | Oil Operator | Apr 2010 |
| 17196 | Lapco Oil & Gas Company | Houston, TX 77069 | Oil & Gas Operator | Oct 2015 |
| 17197 | Lapetco Inc | Plano, TX 75093 | Oil & Gas Operator | Aug 2024 |
| 17198 | Lapis Operating, Inc. | Houston, TX 77042 | Oil & Gas Operator | Jul 2015 |
| 17199 | Lappin Oil LLC | Douglas, WY 82633 | Oil & Gas Operator | Jan 2026 |
| 17200 | Lapradd George C | Cochranton, PA 16314-5634 | Oil & Gas Operator | Dec 2005 |