| 401 | Miller Oil Company | Corsicana, TX 75110 | Oil & Gas Operator | Dec 2015 |
| 402 | Miller, Charles A., Jr. | South Dayton, NY 14138 | Gas Operator | Dec 2023 |
| 403 | Miller, Connie S. & Queen, Jennifere L | Blasdell, NY 14219 | Gas Operator | Dec 2023 |
| 404 | Miller, Henry G. | Perrysburg, NY 14129 | Gas Operator | Dec 2023 |
| 405 | Miller, Kathleen M. | Warsaw, NY 14569 | Gas Operator | Dec 2023 |
| 406 | Miller, Kyle | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 407 | Miller, Neil S. | Sherman, NY 14781 | Gas Operator | Dec 2023 |
| 408 | Milliman, John & Julie | Randolph, NY 14772 | Gas Operator | Dec 2023 |
| 409 | Milliman, Lee And Debora | Cattaraugus, NY 14719 | Gas Operator | Dec 2023 |
| 410 | Mills, Cary | Limestone, NY 14753 | Oil & Gas Operator | Dec 2023 |
| 411 | Mills, Donald R. & Kathleen A. | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 412 | Mills, Roger A. | Greenwood, NY 14839 | Oil & Gas Operator | Dec 2023 |
| 413 | Minard Run Oil Co | Bradford, PA 16701 | Oil & Gas Operator | Dec 2024 |
| 414 | Monroe County Water Authority | Rochester, NY 14612 | Gas Operator | Dec 2023 |
| 415 | Monroe, Cameron | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 416 | Moog Inc. | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 417 | Moore, Mark C. | Darien Center, NY 14040 | Gas Operator | Dec 2023 |
| 418 | Morley, Kenneth A. | Sinclairville, NY 14782 | Gas Operator | Dec 2023 |
| 419 | Morreale, Michael G. & John W. | Frewsburg, NY 14738 | Gas Operator | Dec 2023 |
| 420 | Morris, Stanley A. | Cherry Creek, NY 14723 | Gas Operator | Dec 2023 |
| 421 | Morse, John R. | Portland, NY 14769 | Gas Operator | Dec 2023 |
| 422 | Mosher Gas, LLC | Knoxville, PA 16928 | Gas Operator | Dec 2023 |
| 423 | Mount, Thomas | North East, PA 16428 | Gas Operator | Dec 2023 |
| 424 | Mroz Baier, Christine | Memphis, TN 38120 | Gas Operator | Dec 2023 |
| 425 | Muffoletto, Michael R. | Brant, NY 14027 | Gas Operator | Dec 2023 |
| 426 | Muldowney Development, Inc. | Dunkirk, NY 14048 | Gas Operator | Dec 2023 |
| 427 | Mumford, Catherine | Waterloo, NY 13165 | Gas Operator | Dec 2023 |
| 428 | Mumford-Gabel, Jennifer And Kyle Gabel | Lawtons, NY 14091 | Gas Operator | Dec 2023 |
| 429 | Murphy, Douglas S. | Sherman, NY 14781 | Gas Operator | Dec 2023 |
| 430 | Musshafen, Denis | Linwood, NY 14486 | Gas Operator | Dec 2023 |
| 431 | Nagel, Arthur F. & Elaine L. | South Dayton, NY 14138 | Gas Operator | Dec 2023 |
| 432 | Nathan Petroleum Corp., Yahn & Yahn Inc | Whitesville, NY 14897 | Oil & Gas Operator | Dec 2023 |
| 433 | Nathan Petroleum Corporation | Rexville, NY 14877 | Oil & Gas Operator | Dec 2023 |
| 434 | National Fuel Gas Supply Corporation | | Gas Operator | Dec 2010 |
| 435 | Nativity Of Our Lord | Orchard Park, NY 14127 | Gas Operator | Dec 2023 |
| 436 | Neckers, Barry And Kathy | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 437 | Nelson, Nathan M. | Machias, NY 14101 | Gas Operator | Dec 2023 |
| 438 | Newland Farm | Freedom, NY 14065 | Gas Operator | Dec 2023 |
| 439 | Neyman, Robert L. & Maureen J. | Batavia, NY 14020 | Gas Operator | Dec 2023 |
| 440 | Nickerson, Royal | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 441 | Niefergold, Martin & Suzanne | Lawtons, NY 14091 | Gas Operator | Dec 2023 |
| 442 | NLC Newstead Holdings LLC | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 443 | Nobbs, Gary H. And Bosinski, Kathy | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 444 | Noble, Alton L | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 445 | Nolt, Leonard R. And Marian M. Nolt | Dundee, NY 14837 | Gas Operator | Dec 2023 |
| 446 | Nornew Inc | Houston, TX 77063-2140 | Oil & Gas Operator | Dec 2008 |
| 447 | Norris, Robert E. III | Savannah, NY 13146 | Gas Operator | Dec 2023 |
| 448 | Norse Energy Corp USA | | Gas Operator | Dec 2011 |
| 449 | North Harmony Ventures, Inc. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2023 |
| 450 | Northrop, Marilynne | Westfield, NY 14787 | Gas Operator | Dec 2023 |
| 451 | Nottis, David J. | West Valley, NY 14171 | Gas Operator | Dec 2023 |
| 452 | Nucomer Energy LLC | Erie, PA 16507 | Oil & Gas Operator | Jan 2025 |
| 453 | O'Connor, Emma | Hamburg, NY 14075 | Gas Operator | Dec 2023 |
| 454 | O'Gorman, Brendan & Wheeler, Anne | North Collins, NY 14111 | Gas Operator | Dec 2023 |
| 455 | O'Gorman, Kevin | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 456 | Odebralski, Michael & Connie | Fredonia, NY 14063 | Gas Operator | Dec 2023 |
| 457 | Oi Auburn, Inc. | Tulsa, OK 74135 | Gas Operator | Dec 2023 |
| 458 | Old Acres Farm, Inc. | Perry, NY 14530 | Gas Operator | Dec 2023 |
| 459 | Olde Chautauqua Farms | Portland, NY 14769 | Gas Operator | Dec 2023 |
| 460 | Oonk, Harvey D. | Clymer, NY 14724 | Gas Operator | Dec 2023 |
| 461 | Operating Engineers Local 17 Training Fund | Lake VIew, NY 14085 | Gas Operator | Dec 2023 |
| 462 | Orr, Jr., Donald R. | Batavia, NY 14020 | Gas Operator | Dec 2023 |
| 463 | Outman, Joshua J. | Andover, NY 14806 | Oil & Gas Operator | Dec 2023 |
| 464 | P&H Gas, LLC | Fredonia, NY 14063 | Gas Operator | Dec 2023 |
| 465 | Palizay, Paul | Alden, NY 14004 | Gas Operator | Dec 2023 |
| 466 | Pan Energy Company, Inc. | Orchard Park, NY 14127 | Oil & Gas Operator | Dec 2023 |
| 467 | Parmelee, Terrence G. E., Jr. | Chagrin Falls, OH 44023 | Gas Operator | Dec 2023 |
| 468 | Partyka, Pauline D. | | Gas Operator | Dec 2023 |
| 469 | Pasnik, Matthew J., Pasnik, Linda H. | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 470 | Pautler, Thomas | Akron, NY 14001 | Gas Operator | Dec 2023 |
| 471 | Pecuch, Robert D. & Patricia B. | Cassadaga, NY 14718 | Gas Operator | Dec 2023 |
| 472 | Pefley Oil & Gas, Inc. | Colden, NY 14033 | Gas Operator | Dec 2023 |
| 473 | Pelletter, James J & Weist, Richard M | Fredonia, NY 14063 | Gas Operator | Dec 2023 |
| 474 | Pembroke Central School District | Corfu, NY 14036 | Gas Operator | Dec 2023 |
| 475 | Pennhills Resources LLC | MT. Jewett, PA 16740 | Oil & Gas Operator | Jan 2025 |
| 476 | Perkins & Perkins Oil Co. Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2023 |
| 477 | Pero Farms Inc. | Brant, NY 14027 | Gas Operator | Dec 2023 |
| 478 | Perry, Robert & Elizabeth | | Gas Operator | Dec 2023 |
| 479 | Peterson, Thomas M. | Jamestown, NY 14701 | Oil & Gas Operator | Dec 2023 |
| 480 | Piall, Theresa | Irving, NY 14081 | Gas Operator | Dec 2023 |
| 481 | Piedmont Resources Corporation | Etna, NY 13062 | Oil Operator | Dec 2023 |
| 482 | Pine Oil Company | Cibolo, TX 78108 | Oil & Gas Operator | Dec 2023 |
| 483 | Pine Valley Central School District | South Dayton, NY 14138 | Gas Operator | Dec 2023 |
| 484 | Pinzok, Michael & Linda | Ripley, NY 14775 | Gas Operator | Dec 2023 |
| 485 | Plants & Goodwin Inc | Bradford, PA 16701-3733 | Oil & Gas Operator | Dec 2018 |
| 486 | PLF Energy, LLC | Le Roy, NY 14482 | Gas Operator | Dec 2023 |
| 487 | Plick Enterprises, Inc. | Wellsville, NY 14895 | Oil & Gas Operator | Dec 2023 |
| 488 | Porebski, Adam R. | Gerry, NY 14740 | Gas Operator | Dec 2023 |
| 489 | PPP Future Development Inc. | Alexander, NY 14005 | Oil & Gas Operator | Dec 2023 |
| 490 | Preischel, Anthony H. | Eden, NY 14057 | Gas Operator | Dec 2023 |
| 491 | Press Holdings LLC | Forestville, NY 14062 | Gas Operator | Dec 2023 |
| 492 | Purdy, Sean P. & Deanna M. | Cassadaga, NY 14718 | Gas Operator | Dec 2023 |
| 493 | Range Resources Appalachia LLC | Canonsburg, PA 15317 | Oil & Gas Operator | Jan 2025 |
| 494 | Rapp, Brian R. And Judith E. | Cassadaga, NY 14718 | Gas Operator | Dec 2023 |
| 495 | Rapp, Kenneth E. | Sugar Grove, PA 16350 | Gas Operator | Dec 2023 |
| 496 | Rasmussen'S Energy, Inc. | Waterloo, NY 13165 | Gas Operator | Dec 2023 |
| 497 | RC Southwell Oil LLC | Warren, PA 16365 | Oil & Gas Operator | Dec 2024 |
| 498 | Rebilas, Mark | East Aurora, NY 14052 | Gas Operator | Dec 2023 |
| 499 | Red Maple Acres, LLC | Scipio Center, NY 13147 | Gas Operator | Dec 2023 |
| 500 | Reisdorf, Christine A. | North Java, NY 14113 | Gas Operator | Dec 2023 |