| 16801 | Lazer Petroleum | | Oil Operator | Jan 1993 |
| 16802 | Lazy H Investment | Chandler, OK 74834 | Oil & Gas Operator | Nov 1993 |
| 16803 | LBJ Drilling Co Inc | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2023 |
| 16804 | LBJ Energy Associates, LLC | Staunton,, VA 24402 | Oil & Gas Operator | Dec 2021 |
| 16805 | LBJ Production Inc | Okmulgee, OK 74447 | Oil Operator | Nov 1998 |
| 16806 | LBN Oil Co., Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | May 1998 |
| 16807 | Lbo Energy, Inc. | Kentfield, CA 94914 | Gas Operator | Nov 2002 |
| 16808 | Lbo New Mexico Inc | Midland, TX BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 16809 | Lboc, LLC | Norphlet, AR 71759 | Oil Operator | Dec 2024 |
| 16810 | LBTH Inc. | | Oil & Gas Operator | Mar 2025 |
| 16811 | LC Operating, LLC | Burkburnett, TX 76354 | Oil & Gas Operator | Jun 2025 |
| 16812 | LCB Resources LLC | Kingfisher, OK 73750-2322 | Oil & Gas Operator | Mar 2025 |
| 16813 | LCT Energy, LP | Lewisville, AR 71845 | Oil & Gas Operator | Jun 2025 |
| 16814 | LCX Energy, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2010 |
| 16815 | LDD Energy LLC | | Oil & Gas Operator | Apr 2025 |
| 16816 | LDF Energy, LLC | Midland, TX 79707 | Oil & Gas Operator | Jun 2025 |
| 16817 | LDH Operating LLC | Wichita, KS 67278 | Oil Operator | Feb 2025 |
| 16818 | Ldo LLC | Skiatook, OK 74070 | Oil Operator | Mar 2025 |
| 16819 | LDX Operating Company, LLC. | Amarillo, TX 79102 | Oil & Gas Operator | Jun 2025 |
| 16820 | Le Bas Operating Company, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2000 |
| 16821 | Le Norman Energy Corporation | Duncan, OK 73534 | Oil & Gas Operator | Nov 2014 |
| 16822 | Le Norman Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2019 |
| 16823 | Le Norman Partners LLC | Duncan, OK 73533-9523 | Oil & Gas Operator | Feb 2012 |
| 16824 | Le Roy Central School | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 16825 | Lea Exploration, Inc. | | Oil & Gas Operator | Nov 1989 |
| 16826 | Leach Joseph L | Gallipolis, OH 45631 | Oil & Gas Operator | Dec 2023 |
| 16827 | Leach, D.L.,Jr. | Edna, TX 77957 | Gas Operator | Oct 2007 |
| 16828 | Leach, Elwood | Osawatomie, KS 66064 | Oil Operator | Dec 2009 |
| 16829 | Leach, Marlene | Osawatomie, KS 66064 | Oil Operator | Jan 2025 |
| 16830 | Leaco Operating, LLC | Houston, TX 77056 | Oil Operator | Mar 2025 |
| 16831 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 16832 | Leading Edge Energy LLC | San Antonio, TX 78205 | Oil Operator | Jun 2025 |
| 16833 | Leads Resources, L.L.C. | | Oil & Gas Operator | Jan 2017 |
| 16834 | Leahy Oil, LLC | Arlington, TX 76006 | Oil Operator | Jun 2025 |
| 16835 | Leake Keith D | Winfield, KS 67156-8871 | Oil Operator | Apr 2004 |
| 16836 | Leake, Keith D.(Deceased) Estate | Derby, KS 67037 | Oil Operator | Mar 2003 |
| 16837 | Leali & Leali Oil Inc | Hermitage, PA 16148-9020 | Oil & Gas Operator | Dec 2016 |
| 16838 | Leaman Oil Company | Roland, OK 74954 | Oil & Gas Operator | Apr 2014 |
| 16839 | Lear Gas Transmission | | Oil Operator | Aug 1989 |
| 16840 | Lear Oil, LLC | Junction City, KY 40440 | Oil Operator | Dec 2023 |
| 16841 | Lear Petroleum Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2015 |
| 16842 | Lear Petroleum E | | Oil & Gas Operator | Jan 1986 |
| 16843 | Lear Petroleum Exploration | | Oil & Gas Operator | Jul 2013 |
| 16844 | Lear Petroleum Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Aug 1999 |
| 16845 | Learning Disabilities Association Of Wny | Buffalo, NY 14214 | Gas Operator | Dec 2023 |
| 16846 | Lease Holders Acquisitions LLC | Yukon, OK 73099 | Gas Operator | Jun 2025 |
| 16847 | Lease Management Inc | | Oil & Gas Operator | Mar 2025 |
| 16848 | Lease Management Inc And McClure Oil Co | | Oil & Gas Operator | Apr 1991 |
| 16849 | Lease Management Inc And Patrick Petroleum Corp | | Oil & Gas Operator | Apr 1991 |
| 16850 | Leasehold Management Corp | Oklahoma City, OK 73107 | Oil & Gas Operator | Nov 2024 |
| 16851 | Leasing & Develo | | Oil & Gas Operator | Feb 1993 |
| 16852 | Leasing & Development, Inc. | Wichita, KS 67202 | Oil Operator | Jun 2022 |
| 16853 | Leatherman Creek, Inc. | | Oil Operator | Jul 2001 |
| 16854 | Leatherneck Energy Group Inc | Addison, TX 75001-6025 | Oil & Gas Operator | Apr 2020 |
| 16855 | Leatherwood, LLC | Canonsburg, PA 15317-6506 | Oil & Gas Operator | Dec 2023 |
| 16856 | Leavell Resource | | Oil Operator | Dec 1993 |
| 16857 | Leavell Resources Corporation | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 16858 | Leben Corp. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2011 |
| 16859 | Leben Drilling I | | Oil & Gas Operator | Dec 1988 |
| 16860 | Leben Oil Corpor | | Oil & Gas Operator | Apr 1991 |
| 16861 | Leben Theodore I | | Oil & Gas Operator | Dec 1995 |
| 16862 | Leben* Theodore I Dba Leben Oil Companies | | Oil Operator | Jun 2002 |
| 16863 | Leboeuf MFG Inc | Waterford, PA 16441-0458 | Gas Operator | Dec 1990 |
| 16864 | Lebosquet Gas Operations, LLC | Wichita, KS 67202 | Gas Operator | Feb 2025 |
| 16865 | Lebosquet John R | | Gas Operator | Dec 1994 |
| 16866 | Lebosquet, John W. | Wichita, KS 67202 | Gas Operator | Feb 2025 |
| 16867 | Lebow, Marvin E. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1997 |
| 16868 | Lebsack Oil Prod | | Oil & Gas Operator | Nov 1995 |
| 16869 | Lebsack Oil Production Inc. | Stafford, KS 67578 | Oil & Gas Operator | Feb 2025 |
| 16870 | Lebsack, James S. | Denver, CO 80222 | Oil Operator | Sep 1998 |
| 16871 | Lebus Oilfield Service Co | | Oil Operator | Sep 2009 |
| 16872 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Jun 2025 |
| 16873 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Jun 2025 |
| 16874 | Leclair-Westwood Inc | | Oil & Gas Operator | Mar 1982 |
| 16875 | Led Enterprises | El Dorado, KS 67042 | Oil Operator | Sep 1999 |
| 16876 | Led Enterprises LLC | El Dorado, KS 67042 | Oil Operator | Dec 2009 |
| 16877 | Ledbetter, Jerald D. Estate Of | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 16878 | Ledbetter, Jerald D. Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2007 |
| 16879 | Ledbetter, Morris | Abilene, TX 79605 | Oil & Gas Operator | Jun 2005 |
| 16880 | Ledbetter, O. H. | Albany, TX 76430 | Oil & Gas Operator | Mar 1997 |
| 16881 | Ledford Jan Oil & Gas | Duncan, OK 73533-3210 | Oil Operator | Dec 2024 |
| 16882 | Ledger Operating Corporation | Abilene, TX 79601 | Oil Operator | Jun 2025 |
| 16883 | Lee And Jane Laird | | Oil & Gas Operator | Dec 2002 |
| 16884 | Lee Brothers Oil Co. | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 16885 | Lee Donna Oil Co | | Oil & Gas Operator | Dec 1996 |
| 16886 | Lee E & M Lee Minter | New Kensington, PA 15068-1440 | Gas Operator | Dec 2003 |
| 16887 | Lee Energy Exploration LTD | Oklahoma City, OK 73102-7114 | Oil & Gas Operator | Jul 2008 |
| 16888 | Lee Energy LLC | Edmond, OK 73034-7668 | Oil Operator | Jan 2005 |
| 16889 | Lee Jr W E | Beggs, OK 74421-2683 | Oil & Gas Operator | May 2013 |
| 16890 | Lee Lamberson Inc. | | Oil & Gas Operator | Dec 2000 |
| 16891 | Lee Lynn MGMT Co | Indiana, PA 15701-3400 | Oil & Gas Operator | Dec 1991 |
| 16892 | Lee M Crane | Bloomfield, NM 87413 | Gas Operator | Mar 2025 |
| 16893 | Lee Mills | | Oil Operator | Feb 1992 |
| 16894 | Lee Of Tulsa Oil & Gas Inc | Tulsa, OK 74114-5634 | Oil & Gas Operator | Dec 2021 |
| 16895 | Lee Phillips Oil Company | | Oil Operator | Feb 2025 |
| 16896 | Lee Production Co. | Monahans, TX 79756 | Oil & Gas Operator | Jun 2025 |
| 16897 | Lee Ron | Emory, TX 75440 | Oil Operator | Feb 2025 |
| 16898 | Lee Roy Daigle | | Oil Operator | Dec 1992 |
| 16899 | Lee'S Summit Gas Co. | | Gas Operator | Dec 1933 |
| 16900 | Lee, R.A., Inc. | | Oil Operator | Nov 1972 |