| 17401 | Long Trust The | Kilgore, TX 75663 | Oil & Gas Operator | Aug 2008 |
| 17402 | Long Trusts, The | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 17403 | Long, Edgar E. | Windthorst, TX 76389 | Oil & Gas Operator | Oct 2011 |
| 17404 | Long, Edwin A. And Glenda | Hamilton, KS 66853 | Oil Operator | Aug 2000 |
| 17405 | Long, James A | | Oil Operator | Aug 2000 |
| 17406 | Long, John P | | Oil & Gas Operator | Mar 2025 |
| 17407 | Long, Larry T. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2017 |
| 17408 | Long, Lewis C., A General Partnership | Hamilton, KS 66853 | Oil Operator | Dec 2019 |
| 17409 | Long, Marshall | Chase, KS 67524 | Oil Operator | Mar 1986 |
| 17410 | Long-Tex Exploration, Inc. | Kilgore, TX 75662 | Oil & Gas Operator | Jun 2025 |
| 17411 | Longacre Oil & Gas | Enid, OK 73702 | Oil & Gas Operator | Mar 2013 |
| 17412 | Longberry Energy Inc | Keota, OK 74941 | Gas Operator | Apr 2025 |
| 17413 | Longbotham Energy, LLC | Jackson, TN 38308 | Oil Operator | Jun 2025 |
| 17414 | Longbow LLC | | Oil & Gas Operator | Apr 2025 |
| 17415 | Longbranch Oil Company | Oklahoma City, OK 73154-0735 | Oil & Gas Operator | Mar 2018 |
| 17416 | Longfellow Energy, LP | Dallas, TX 75225 | Oil & Gas Operator | Jun 2025 |
| 17417 | Longhorn Crude, LLC | Jetmore, KS 67854 | Oil Operator | Jan 2025 |
| 17418 | Longhorn Energy | | Oil & Gas Operator | Jun 1991 |
| 17419 | Longhorn Mineral Corporation | Bellaire, TX 77401 | Oil & Gas Operator | May 2018 |
| 17420 | Longhorn Oil & Gas | | Oil Operator | Feb 2025 |
| 17421 | Longhorn Oil & Gas Company | | Oil & Gas Operator | Sep 1982 |
| 17422 | Longhorn Oil Properties, Inc. | Pottsboro, TX 75076 | Oil & Gas Operator | Jun 2025 |
| 17423 | Longhorn Propert | | Oil Operator | Feb 1989 |
| 17424 | Longhorn Service & Drilling Co. | Kermit, TX 79745 | Oil & Gas Operator | Jun 2019 |
| 17425 | Longhurst Oil & Gas Inc | | Oil & Gas Operator | Nov 2013 |
| 17426 | Longleaf Energy Group, Inc. | Brewton, AL 36426 | Oil & Gas Operator | Feb 2004 |
| 17427 | Longleaf Gas & Oil | | Oil Operator | May 2010 |
| 17428 | Longs Peak Resources LLC | Houston, TX 77019 | Oil & Gas Operator | Mar 2025 |
| 17429 | Longshot Energy LLC | League City, TX 77573 | Oil Operator | Jun 2025 |
| 17430 | Longton Explorat | | Oil & Gas Operator | Jul 1993 |
| 17431 | Longton Explorations | | Oil & Gas Operator | Dec 2024 |
| 17432 | Longview Production Company | Dallas, TX 75243-3795 | Oil & Gas Operator | Mar 2025 |
| 17433 | Longview Production, Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Dec 2002 |
| 17434 | Longville Production Co., Inc. | | Oil & Gas Operator | Sep 1995 |
| 17435 | Lonny Bruce Operations, L.L.C. | McPherson, KS 67460 | Oil & Gas Operator | Apr 2009 |
| 17436 | Lor-Rob Associates L.L.C. | East Bethany, NY 14054 | Gas Operator | Dec 2023 |
| 17437 | Lorac, Inc. | Dallas, TX 75252 | Oil & Gas Operator | Jun 2025 |
| 17438 | Loral Operating LLC | Sheridan, WY 82801 | Gas Operator | Apr 2011 |
| 17439 | Lord Enterprises Inc | Oklahoma City, OK 73106-5050 | Oil & Gas Operator | Sep 2000 |
| 17440 | Lorentz Oil & Gas LLC | Edmond, OK 73034-7266 | Oil & Gas Operator | Mar 2025 |
| 17441 | Lorenz & Bosanko | San Antonio, TX 78247 | Oil & Gas Operator | Jun 2025 |
| 17442 | Lorenz Robert M | | Oil & Gas Operator | Oct 1984 |
| 17443 | Lorenz, Barton T. | Cherryvale, KS 67335 | Oil & Gas Operator | Jul 2013 |
| 17444 | Lorenz, J. P., Jr. | La Vernia, TX 78121 | Oil & Gas Operator | Mar 2008 |
| 17445 | Lorenz, James D. | Parsons, KS 67357 | Oil & Gas Operator | May 2014 |
| 17446 | Lorenzen Oil Company, Inc. | O?Fallon, MO 63368 | Oil Operator | Nov 2024 |
| 17447 | Loretto, Jason C. | Alden, NY 14004 | Gas Operator | Dec 2023 |
| 17448 | Lorlan Oil Company | Wink, TX 79789 | Oil & Gas Operator | Aug 2020 |
| 17449 | Los Angeles Unified School District | | Oil Operator | Dec 2014 |
| 17450 | Losure Pet. Co. | Borger, TX 79008 | Oil & Gas Operator | Apr 2014 |
| 17451 | Losure, Ken | Borger, TX 79008 | Oil & Gas Operator | Jun 2025 |
| 17452 | Lotex Exploration & Prod. Co. | Carrollton, TX 75006 | Oil & Gas Operator | Jul 2011 |
| 17453 | Lothes John W | Newark, OH 43055 | Oil & Gas Operator | Dec 2024 |
| 17454 | Lothian Oil Texas I, Inc. | Dallas, TX 75204 | Oil & Gas Operator | Mar 2008 |
| 17455 | Loto Energy LLC | Saint Louis, MO 63105 | Oil & Gas Operator | Mar 2025 |
| 17456 | Lott Production Company | San Antonio, TX 78217 | Oil & Gas Operator | Jun 2025 |
| 17457 | Lotter Gas Co., Inc. | | Gas Operator | Apr 2009 |
| 17458 | Lottie Oil Co. | Seguin, TX 78156 | Oil & Gas Operator | Apr 1996 |
| 17459 | Lotus O&G, LLC | Mansfield, TX 76063 | Oil Operator | Jun 2025 |
| 17460 | Lotus Operating Company, L.L.C. | Wichita, KS 67204 | Oil & Gas Operator | Feb 2025 |
| 17461 | Lou Dennis Oil Company Inc | Ada, OK 74820-2303 | Oil & Gas Operator | Jun 2016 |
| 17462 | Loudel, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Jun 2025 |
| 17463 | Loudon Exploration, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Mar 2008 |
| 17464 | Loudon Operating Company, L.L.C. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2025 |
| 17465 | Louis Dreyfus Natural Gas Corp. | Oklahoma City, OK 73134 | Oil & Gas Operator | Mar 2015 |
| 17466 | Louis Dreyfus Natural Gas Inc | Houston, TX 770103088 | Oil & Gas Operator | Sep 1997 |
| 17467 | Louis J. Roussel | | Oil & Gas Operator | Sep 1991 |
| 17468 | Louisiana Crude Oil&Gas Co Inc | | Oil & Gas Operator | Mar 1984 |
| 17469 | Louisiana Delta Oil Co, LLC | | Oil & Gas Operator | Nov 2024 |
| 17470 | Louisiana Energy & Environmental, Inc. | | Oil & Gas Operator | Aug 2015 |
| 17471 | Louisiana Energy Consultant Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 17472 | Louisiana Energy Consultants, Inc. | | Oil & Gas Operator | Dec 2024 |
| 17473 | Louisiana Energy Investors, L.L.C. | | Oil & Gas Operator | Jun 2016 |
| 17474 | Louisiana Fuel Oil Corporation | | Oil Operator | Aug 1997 |
| 17475 | Louisiana Gas Development Corp | | Oil & Gas Operator | Jan 2025 |
| 17476 | Louisiana Gas Production Co | | Gas Operator | Dec 1996 |
| 17477 | Louisiana Gas Service Co. | | Oil Operator | May 2004 |
| 17478 | Louisiana Gas System, Inc. | | Oil Operator | Apr 2004 |
| 17479 | Louisiana General Petr. Corp. | | Oil & Gas Operator | Mar 1980 |
| 17480 | Louisiana Intrastate Gas Corp. | | Oil Operator | Feb 1994 |
| 17481 | Louisiana Jordan Oil Co, Inc. | Lake Charles, LA 70602 | Oil & Gas Operator | Dec 2024 |
| 17482 | Louisiana Land & Exploration Co. | Houston, TX 77210 | Oil & Gas Operator | Sep 2013 |
| 17483 | Louisiana Leasing & Expl, Inc. | | Oil & Gas Operator | Apr 2011 |
| 17484 | Louisiana Minerals, LTD. | Houston, TX 77024 | Oil & Gas Operator | Jul 1988 |
| 17485 | Louisiana Offshore Exploration, L.L.C. | | Oil & Gas Operator | Dec 2024 |
| 17486 | Louisiana Operating Co., Inc. | | Oil & Gas Operator | Aug 1994 |
| 17487 | Louisiana Resources Co | | Oil Operator | May 1992 |
| 17488 | Louisiana Tank, Inc. | | Oil Operator | Mar 2023 |
| 17489 | Louisiana-Caddo Invest, Inc. | | Oil & Gas Operator | Jun 2008 |
| 17490 | Louisiana-Hunt Petroleum Corp. | | Oil & Gas Operator | Dec 1985 |
| 17491 | Louisville Gas & Electric Co | Louisville, KY 40241 | Oil Operator | Dec 2023 |
| 17492 | Loundagin N B | Casper, WY 82602 | Oil & Gas Operator | Sep 2015 |
| 17493 | Loutex Energy, Inc. | | Oil & Gas Operator | Nov 1987 |
| 17494 | Loutex Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Jun 2025 |
| 17495 | Lovelady, I. W. | Albuquerque, NM 87111 | Oil & Gas Operator | Jan 1996 |
| 17496 | Loveland Energy LLC | Wichita, KS 67206 | Oil Operator | Dec 2009 |
| 17497 | Loveless Properties | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2021 |
| 17498 | Lovell Keith | Stillwater, OK 74074-6459 | Oil & Gas Operator | Jan 2020 |
| 17499 | Loving Company (The) | Broken Arrow, OK 74014-0001 | Oil & Gas Operator | May 2013 |
| 17500 | Low D J | Littleton, CO 80127 | Oil Operator | Dec 1999 |