| 401 | Lemasters, Charles A. | Jacksonburg, WV 26377-0000 | Oil & Gas Operator | Dec 2021 |
| 402 | Linn Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Jan 2019 |
| 403 | Lippizan Petroleum, Inc. | Ellenboro, WV 26346 | Oil & Gas Operator | Dec 2023 |
| 404 | Loan Asset Issuer LLC, Series 2021 NG-1 | New York, NY 10022 | Oil & Gas Operator | Sep 2024 |
| 405 | Locin Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Nov 2024 |
| 406 | Lock 3 Company | Pittsburgh, PA 15220 | Oil & Gas Operator | Dec 2017 |
| 407 | Lone Pine Operating Company, Inc. | Salem, WV 26426 | Oil & Gas Operator | Dec 2021 |
| 408 | Lowther, Dan M | Alum Bridge, WV 26321 | Oil & Gas Operator | Dec 2020 |
| 409 | Lucas Well Service, Inc. | Parkersburg, WV 26101 | Oil & Gas Operator | Dec 2021 |
| 410 | Lydic, W. J., Inc. | Zanesville, OH 43702-2310-2310 | Oil & Gas Operator | Jan 2005 |
| 411 | M & A Well Service, Inc. | Arnoldsburg, WV 25234-0000 | Oil & Gas Operator | Dec 2021 |
| 412 | M & M Drilling | Spencer, WV 25276-0905 | Oil & Gas Operator | Dec 2021 |
| 413 | M & M Drilling, Inc. | Spencer, WV 25276-0905 | Oil & Gas Operator | Dec 2021 |
| 414 | M V Crum Gas Partners | Paintsville, KY 41240 | Gas Operator | Dec 2021 |
| 415 | M4 Energy, LLC | Watsontown, PA 17777-1133 | Oil & Gas Operator | Dec 2023 |
| 416 | Macfarlan Oil And Gas, LLC | Ellenboro, WV 26346-0058 | Oil & Gas Operator | Dec 2021 |
| 417 | Mahue Construction Company | Huntington, WV 25724-2345 | Oil & Gas Operator | Dec 2021 |
| 418 | Malvern Group Inc | Clearwater, FL 33758-6817-6817 | Oil & Gas Operator | Mar 2005 |
| 419 | Mann Energy, Inc. | Charleston, WV 25332-3242 | Oil & Gas Operator | Nov 2018 |
| 420 | Maranatha Energy Corporation | Princeton, WV 24740-0000 | Oil & Gas Operator | Dec 2021 |
| 421 | Marathon Oil Company | Houston, TX 77024 | Oil & Gas Operator | Sep 2024 |
| 422 | Marks & Co., Inc. | | Oil & Gas Operator | Dec 2021 |
| 423 | Marsh Operating Company | Dallas, TX 75221 | Oil & Gas Operator | Jul 2024 |
| 424 | Marshall, Dale | | Gas Operator | Dec 1995 |
| 425 | Massey Group, Inc. | | Oil & Gas Operator | Dec 2004 |
| 426 | May Gas, Inc. | | Oil & Gas Operator | Dec 2008 |
| 427 | McCarty, Charles E | Spencer, WV 25276 | Oil & Gas Operator | Dec 2021 |
| 428 | McCullough, Richard F. | Pennsboro, WV 26415 | Oil & Gas Operator | Dec 2021 |
| 429 | MCF Co. | | Oil & Gas Operator | Dec 2011 |
| 430 | McIntosh Oil & Gas, Inc. | Coalton, WV 26257 | Oil & Gas Operator | Dec 2021 |
| 431 | McKinney, Jason G. | | Oil Operator | Dec 2021 |
| 432 | McRain Petroleum | Weston, WV 26452-0000 | Oil & Gas Operator | Dec 2020 |
| 433 | MDW Capital, Inc. | Williamstown, WV 26187 | Oil & Gas Operator | Dec 2021 |
| 434 | Meadow Ridge Development, LLC | Washington, PA 15301 | Oil & Gas Operator | Dec 2021 |
| 435 | Meadows Jr, S. L. Production Inc. | Ravenswood, WV 26164-0022 | Oil & Gas Operator | Dec 2021 |
| 436 | Megaenergy Operating, Inc. | Edmond, OK 73034 | Oil & Gas Operator | Jul 2015 |
| 437 | Megan Oil & Gas Co., Inc. | Spencer, WV 25276-0000 | Oil & Gas Operator | Dec 2021 |
| 438 | Meridian Exploration Corp. | Pittsburgh, PA 15222 | Oil & Gas Operator | Dec 2021 |
| 439 | Mert Development Inc | | Oil & Gas Operator | Dec 2021 |
| 440 | Mid-Eastern Oil & Gas Co. | Burton, WV 26562-0000 | Oil & Gas Operator | Dec 2021 |
| 441 | Mid-Penn Energy Corporation | Harrisburg, PA 17101-1002 | Gas Operator | Dec 2021 |
| 442 | Midway City Gas Company | Huntington, WV 25701 | Oil & Gas Operator | Dec 2018 |
| 443 | Milhoan, Douglas L And Janet L | Belleville, WV 26133 | Gas Operator | Dec 2021 |
| 444 | Miller, Allerton | | Oil & Gas Operator | Dec 1997 |
| 445 | Mills Drilling Co Inc | | Oil & Gas Operator | Nov 2008 |
| 446 | Milton Oil & Gas Company | Charleston, WV 25322 | Gas Operator | Nov 1997 |
| 447 | Mineral Resource Management, L.L.C. | Jane Lew, WV 26378 | Oil & Gas Operator | Dec 2021 |
| 448 | Minuteman Drilling | | Gas Operator | Dec 2021 |
| 449 | MLX Operating, Inc. | Clarksburg, WV 26301 | Oil & Gas Operator | Dec 2021 |
| 450 | Monge Oil Corp. | | Oil & Gas Operator | Dec 2021 |
| 451 | Montani Energy, LLC | Smithville, WV 26178 | Gas Operator | Dec 2021 |
| 452 | Monticola Exploration & Production, Inc. | | Gas Operator | Dec 2021 |
| 453 | Moody Oil & Gas Co. | Bridgeport, WV 26330-1051 | Oil & Gas Operator | Dec 2004 |
| 454 | Moonlight Oil And Gas, LLC | | Oil & Gas Operator | Dec 2021 |
| 455 | Morris Beall Oil & Gas Co | | Oil & Gas Operator | Dec 2021 |
| 456 | Morris Oil & Gas Co., Inc | | Oil & Gas Operator | Dec 2021 |
| 457 | Morris, Carl R | | Oil & Gas Operator | Dec 2015 |
| 458 | Mossor, Kenneth Everett | Ellenboro, WV 26346-0057 | Oil & Gas Operator | Dec 2021 |
| 459 | Mossor, L. E. | Harrisville, WV 26362-0000 | Oil & Gas Operator | Dec 2002 |
| 460 | Motto Energy Inc. | Normantown, WV 25267-8215 | Oil & Gas Operator | Dec 2021 |
| 461 | Mountain State Oil Company, L..L.C. | Pennsboro, WV 26415-0014 | Oil & Gas Operator | Dec 2021 |
| 462 | Mountain State Well Tending | Hurricane, WV 25526-0000 | Oil & Gas Operator | Dec 2021 |
| 463 | Mountain V Oil & Gas, Inc. | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 464 | Mountain V, LLC | Buckhannon, WV 26201 | Oil & Gas Operator | Dec 2021 |
| 465 | Mountaineer Gas Transmission, Inc. | Fort Worth, TX 76185-0000 | Oil & Gas Operator | Dec 2021 |
| 466 | Mountaineer State Energy, Inc. | Dallas, TX 75234 | Oil & Gas Operator | Dec 2021 |
| 467 | Mountaineer State Operations, LLC | Sandyville, WV 25275 | Oil & Gas Operator | Dec 2023 |
| 468 | Mountaineer Trading Company, LLC | Charleston, WV 25314 | Oil & Gas Operator | Dec 2016 |
| 469 | Mud River Gas Co | | Gas Operator | Dec 2021 |
| 470 | Mullen Resources LLC | Reedy, WV 25270 | Oil & Gas Operator | Dec 2021 |
| 471 | Mumma Oil Production Co., Inc. | Allentown, PA 18109-0000 | Oil & Gas Operator | Dec 2019 |
| 472 | Murray Hill Energy, Inc. | Bridgeport, WV 26330 | Oil & Gas Operator | Dec 2017 |
| 473 | Murvin & Meier Oil Co. | | Oil & Gas Operator | Dec 2020 |
| 474 | Mutschelknaus, Clarence W | Salem, WV 26426-0351 | Oil & Gas Operator | Dec 2021 |
| 475 | Mutual Oil & Gas Co | Akron, OH 44313 | Oil & Gas Operator | Dec 2001 |
| 476 | Myers & Hicks Gas Co | | Gas Operator | Dec 2021 |
| 477 | Myers Drilling Company | Barboursville, WV 25504 | Oil & Gas Operator | Dec 2023 |
| 478 | Nanco Resources, LLC | | Gas Operator | Dec 2021 |
| 479 | Nashville Associates Inc | | Oil & Gas Operator | Dec 2003 |
| 480 | NCL Natural Resources LLC | Spring, TX 77381-5261-5261 | Oil & Gas Operator | Dec 2017 |
| 481 | Neely, Steven A. | | Gas Operator | Dec 2021 |
| 482 | Nesler, Charles E. | | Oil & Gas Operator | Dec 2020 |
| 483 | Nester, Holly, Inc. | | Gas Operator | Dec 2021 |
| 484 | New River Energy Corporation | | Gas Operator | Dec 2017 |
| 485 | Night Owl Well Service | Cairo, WV 26337-0000 | Oil & Gas Operator | Dec 2021 |
| 486 | Nitro Energy, Inc. | | Gas Operator | Dec 2005 |
| 487 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Nov 2024 |
| 488 | Northeast Natural Energy LLC | Charleston, WV 25301-2719 | Oil & Gas Operator | Sep 2024 |
| 489 | Northport Production Company | Oklahoma City, OK 73113 | Oil & Gas Operator | Sep 2024 |
| 490 | Northstar Energy Corporation | Charleston, WV 25337-0000 | Oil & Gas Operator | Dec 2021 |
| 491 | Norwes Industries, Inc. | | Oil & Gas Operator | Jun 2000 |
| 492 | Noumenon Corporation | Core, WV 26541-7072 | Oil & Gas Operator | Dec 2023 |
| 493 | Nytis Exploration Company LLC | Lexington, KY 40509 | Oil & Gas Operator | Dec 2021 |
| 494 | O'Brien, Mae Or Brett Strickland | Belington, WV 26250-0076 | Oil & Gas Operator | Dec 2021 |
| 495 | Ohio L & M Company Inc | Marietta, OH 45750 | Oil & Gas Operator | Dec 2008 |
| 496 | Oil Rock Oil Company, Inc. | Elizabeth, WV 26143 | Oil & Gas Operator | Dec 2021 |
| 497 | Oiltex, Inc. | Baltimore, MD 21221 | Oil & Gas Operator | Dec 2013 |
| 498 | Okmar Oil Company | Marietta, OH 45750 | Oil & Gas Operator | Jun 2005 |
| 499 | Olive Oil & Gas | Ellensboro, WV 26346 | Oil & Gas Operator | Dec 2021 |
| 500 | Operator Unknown | Charleston, WV 25304-0000 | Oil & Gas Operator | Dec 2021 |