| 17001 | Layton Oil Compa | | Oil & Gas Operator | Jul 1985 |
| 17002 | Lazarus Operating, LLC | Kilgore, TX 75663 | Oil Operator | Dec 2025 |
| 17003 | Lazer Petroleum | | Oil Operator | Jan 1993 |
| 17004 | Lazy H Investment | Chandler, OK 74834 | Oil & Gas Operator | Nov 1993 |
| 17005 | LB Exploration, Inc. | Wichita, KS 67205 | Oil & Gas Operator | Sep 2025 |
| 17006 | LBJ Drilling Co Inc | Martinsburg, OH 43037 | Oil & Gas Operator | Dec 2024 |
| 17007 | LBJ Energy Associates, LLC | Staunton,, VA 24402 | Oil & Gas Operator | Dec 2021 |
| 17008 | LBJ Production Inc | Okmulgee, OK 74447 | Oil Operator | Nov 1998 |
| 17009 | LBN Oil Co., Inc. | Corpus Chrsti, TX 78411 | Oil & Gas Operator | May 1998 |
| 17010 | Lbo Energy, Inc. | Kentfield, CA 94914 | Gas Operator | Nov 2002 |
| 17011 | Lbo New Mexico Inc | Midland, TX BAD ADDR | Oil & Gas Operator | Dec 1996 |
| 17012 | Lboc, LLC | Norphlet, AR 71759 | Oil Operator | Jan 2025 |
| 17013 | LBTH Inc. | | Oil & Gas Operator | Oct 2025 |
| 17014 | LC Operating, LLC | Burkburnett, TX 76354 | Oil & Gas Operator | Dec 2025 |
| 17015 | LCB Resources LLC | Kingfisher, OK 73750-2322 | Oil & Gas Operator | Nov 2025 |
| 17016 | LCT Energy, LP | Lewisville, AR 71845 | Oil & Gas Operator | Dec 2025 |
| 17017 | LCX Energy, LLC | Midland, TX 79701 | Oil & Gas Operator | Jan 2010 |
| 17018 | LDD Energy LLC | | Oil & Gas Operator | Oct 2025 |
| 17019 | LDF Energy, LLC | Midland, TX 79707 | Oil & Gas Operator | Dec 2025 |
| 17020 | LDH Operating LLC | Wichita, KS 67278 | Oil Operator | Sep 2025 |
| 17021 | Ldo LLC | Skiatook, OK 74070 | Oil Operator | Sep 2025 |
| 17022 | LDX Operating Company, LLC. | Amarillo, TX 79102 | Oil & Gas Operator | Dec 2025 |
| 17023 | Le Bas Operating Company, Inc. | Giddings, TX 78942 | Oil & Gas Operator | Mar 2000 |
| 17024 | Le Norman Energy Corporation | Duncan, OK 73534 | Oil & Gas Operator | Nov 2014 |
| 17025 | Le Norman Operating LLC | Oklahoma City, OK 73142 | Oil & Gas Operator | Nov 2019 |
| 17026 | Le Norman Partners LLC | Duncan, OK 73533-9523 | Oil & Gas Operator | Feb 2012 |
| 17027 | Le Roy Central School | Le Roy, NY 14482 | Gas Operator | Dec 2024 |
| 17028 | Lea Exploration, Inc. | | Oil & Gas Operator | Nov 1989 |
| 17029 | Leach Joseph L | Gallipolis, OH 45631 | Oil & Gas Operator | Dec 2023 |
| 17030 | Leach, D.L.,Jr. | Edna, TX 77957 | Gas Operator | Oct 2007 |
| 17031 | Leach, Elwood | Osawatomie, KS 66064 | Oil Operator | Dec 2009 |
| 17032 | Leaco Operating, LLC | Houston, TX 77056 | Oil Operator | Dec 2025 |
| 17033 | Leader Equities Inc | Columbus, OH 43214 | Oil & Gas Operator | Dec 1988 |
| 17034 | Leading Edge Energy LLC | San Antonio, TX 78205 | Oil Operator | Dec 2025 |
| 17035 | Leads Resources, L.L.C. | | Oil & Gas Operator | Jan 2017 |
| 17036 | Leahy Oil, LLC | Arlington, TX 76006 | Oil Operator | Dec 2025 |
| 17037 | Leake Keith D | Winfield, KS 67156-8871 | Oil Operator | Apr 2004 |
| 17038 | Leake, Keith D.(Deceased) Estate | Derby, KS 67037 | Oil Operator | Mar 2003 |
| 17039 | Leali & Leali Oil Inc | Hermitage, PA 16148-9020 | Oil & Gas Operator | Dec 2016 |
| 17040 | Leaman Oil Company | Roland, OK 74954 | Oil & Gas Operator | Apr 2014 |
| 17041 | Lear Gas Transmission | | Oil Operator | Aug 1989 |
| 17042 | Lear Oil, LLC | Junction City, KY 40440 | Oil Operator | Dec 2023 |
| 17043 | Lear Petroleum Corp | Houston, TX 77210 | Oil & Gas Operator | Mar 2015 |
| 17044 | Lear Petroleum E | | Oil & Gas Operator | Jan 1986 |
| 17045 | Lear Petroleum Exploration | | Oil & Gas Operator | Jul 2013 |
| 17046 | Lear Petroleum Exploration Inc | Dallas, TX 75206 | Oil & Gas Operator | Aug 1999 |
| 17047 | Learning Disabilities Association Of Wny | Buffalo, NY 14214 | Gas Operator | Dec 2024 |
| 17048 | Lease Holders Acquisitions LLC | Yukon, OK 73099 | Gas Operator | Dec 2025 |
| 17049 | Lease Management Inc | | Oil & Gas Operator | Nov 2025 |
| 17050 | Lease Management Inc And McClure Oil Co | | Oil & Gas Operator | Apr 1991 |
| 17051 | Lease Management Inc And Patrick Petroleum Corp | | Oil & Gas Operator | Apr 1991 |
| 17052 | Leasehold Management Corp | Oklahoma City, OK 73107 | Oil & Gas Operator | Nov 2024 |
| 17053 | Leasing & Develo | | Oil & Gas Operator | Feb 1993 |
| 17054 | Leasing & Development, Inc. | Wichita, KS 67202 | Oil Operator | Jun 2022 |
| 17055 | Leatherman Creek, Inc. | | Oil Operator | Jul 2001 |
| 17056 | Leatherneck Energy Group Inc | Addison, TX 75001-6025 | Oil & Gas Operator | Apr 2020 |
| 17057 | Leatherwood, LLC | Canonsburg, PA 15317-6506 | Oil & Gas Operator | Dec 2023 |
| 17058 | Leavell Resource | | Oil Operator | Dec 1993 |
| 17059 | Leavell Resources Corporation | Hays, KS 67601 | Oil & Gas Operator | Mar 2015 |
| 17060 | Leben Corp. | Wichita, KS 67202 | Oil & Gas Operator | Dec 2011 |
| 17061 | Leben Drilling I | | Oil & Gas Operator | Dec 1988 |
| 17062 | Leben Oil Corpor | | Oil & Gas Operator | Apr 1991 |
| 17063 | Leben Theodore I | | Oil & Gas Operator | Dec 1995 |
| 17064 | Leblanc, Michael A And Mary Kaye | Sedan, KS 67361 | Oil Operator | Aug 2025 |
| 17065 | Leboeuf MFG Inc | Waterford, PA 16441-0458 | Gas Operator | Dec 1990 |
| 17066 | Lebosquet Gas Operations, LLC | Wichita, KS 67202 | Gas Operator | Sep 2025 |
| 17067 | Lebosquet John R | | Gas Operator | Dec 1994 |
| 17068 | Lebosquet, John W. | Wichita, KS 67202 | Gas Operator | Sep 2025 |
| 17069 | Lebow, Marvin E. | Tulsa, OK 74135 | Oil & Gas Operator | Jun 1997 |
| 17070 | Lebsack Oil Prod | | Oil & Gas Operator | Nov 1995 |
| 17071 | Lebsack Oil Production Inc. | Stafford, KS 67578 | Oil & Gas Operator | Sep 2025 |
| 17072 | Lebsack, James S. | Denver, CO 80222 | Oil Operator | Sep 1998 |
| 17073 | Lebus Oilfield Service Co | | Oil Operator | Sep 2009 |
| 17074 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2025 |
| 17075 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2025 |
| 17076 | Leclair-Westwood Inc | | Oil & Gas Operator | Mar 1982 |
| 17077 | Led Enterprises | El Dorado, KS 67042 | Oil Operator | Sep 1999 |
| 17078 | Led Enterprises LLC | El Dorado, KS 67042 | Oil Operator | Dec 2009 |
| 17079 | Ledbetter, Jerald D. Estate Of | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 17080 | Ledbetter, Jerald D. Oil Company | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2007 |
| 17081 | Ledbetter, Morris | Abilene, TX 79605 | Oil & Gas Operator | Jun 2005 |
| 17082 | Ledbetter, O. H. | Albany, TX 76430 | Oil & Gas Operator | Mar 1997 |
| 17083 | Ledford Jan Oil & Gas | Duncan, OK 73533-3210 | Oil Operator | Nov 2025 |
| 17084 | Ledger Operating Corporation | Abilene, TX 79601 | Oil Operator | Dec 2025 |
| 17085 | Lee And Jane Laird | | Oil & Gas Operator | Dec 2002 |
| 17086 | Lee Brothers Oil Co. | Houston, TX 77056 | Oil & Gas Operator | Mar 2008 |
| 17087 | Lee Donna Oil Co | | Oil & Gas Operator | Dec 1996 |
| 17088 | Lee E & M Lee Minter | New Kensington, PA 15068-1440 | Gas Operator | Dec 2003 |
| 17089 | Lee Energy Exploration LTD | Oklahoma City, OK 73102-7114 | Oil & Gas Operator | Jul 2008 |
| 17090 | Lee Energy LLC | Edmond, OK 73034-7668 | Oil Operator | Jan 2005 |
| 17091 | Lee Jr W E | Beggs, OK 74421-2683 | Oil & Gas Operator | May 2013 |
| 17092 | Lee Lamberson Inc. | | Oil & Gas Operator | Dec 2000 |
| 17093 | Lee Lynn MGMT Co | Indiana, PA 15701-3400 | Oil & Gas Operator | Dec 1991 |
| 17094 | Lee M Crane | Bloomfield, NM 87413 | Gas Operator | Nov 2025 |
| 17095 | Lee Mills | | Oil Operator | Feb 1992 |
| 17096 | Lee Of Tulsa Oil & Gas Inc | Tulsa, OK 74114-5634 | Oil & Gas Operator | Dec 2021 |
| 17097 | Lee Phillips Oil Company | | Oil Operator | Sep 2025 |
| 17098 | Lee Production Co. | Monahans, TX 79756 | Oil & Gas Operator | Dec 2025 |
| 17099 | Lee Ron | Emory, TX 75440 | Oil Operator | Jul 2025 |
| 17100 | Lee Roy Daigle | | Oil Operator | Dec 1992 |