| Property Name | Property Location | Property Type | Most Recent Production | |
|---|---|---|---|---|
| 301 | MCCOOL | Warren County, PA | Oil & Gas Property | Dec 2001 |
| 302 | MCCOOL & MCCOOL | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 303 | MCCOOL BROS STONEHAM LEASE LOT 466 | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 304 | MCCORMACK | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 305 | MCCORMICK 00 | Indiana County, PA | Gas Property | Dec 2025 |
| 306 | MCCOY | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 307 | MCCOY | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 308 | MCCOY SMALL | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 309 | MCCRACKEN | Clearfield County, PA | Gas Property | Dec 2025 |
| 310 | MCCRADY | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 311 | MCCREA | Butler County, PA | Gas Property | Apr 2026 |
| 312 | MCCREIGHT | Jefferson County, PA | Gas Property | Dec 2025 |
| 313 | MCCULLOUGH | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 314 | MCCULLOUGH | Crawford County, PA | Oil & Gas Property | Dec 2025 |
| 315 | MCCULLOUGH | Indiana County, PA | Gas Property | Dec 2025 |
| 316 | MCCULLOUGH | Westmoreland County, PA | Gas Property | Apr 2026 |
| 317 | MCCULLOUGH | Mercer County, PA | Oil & Gas Property | Apr 2026 |
| 318 | MCCULLOUGH H | Armstrong County, PA | Gas Property | Dec 2025 |
| 319 | MCCULLOUGH IMOGENE | Armstrong County, PA | Gas Property | Dec 2025 |
| 320 | MCDANEL BEA | Beaver County, PA | Gas Property | Apr 2026 |
| 321 | MCDIVITT | Westmoreland County, PA | Gas Property | Dec 2025 |
| 322 | MCDONOUGH | Wyoming County, PA | Gas Property | Apr 2026 |
| 323 | MCDONOUGH | Washington County, PA | Gas Property | Apr 2026 |
| 324 | MCDOWELL | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 325 | MCDOWELL | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 326 | MCELHINNY | Butler County, PA | Oil & Gas Property | Apr 2026 |
| 327 | MCELHOES-BUCHANAN | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 328 | MCELROY | Armstrong County, PA | Gas Property | Dec 2025 |
| 329 | MCENANEY | Bradford County, PA | Gas Property | Apr 2026 |
| 330 | MCFADDEN | Clearfield County, PA | Gas Property | Dec 2025 |
| 331 | MCFARLAND | Lawrence County, PA | Gas Property | Dec 2025 |
| 332 | MCFATE | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 333 | MCGARRELL | Forest County, PA | Oil Property | Dec 2021 |
| 334 | MCGAUGHEY | Armstrong County, PA | Gas Property | Dec 2025 |
| 335 | MCGAVIN | Wyoming County, PA | Gas Property | Apr 2026 |
| 336 | MCGEE | Clearfield County, PA | Oil & Gas Property | Dec 2025 |
| 337 | MCGILL | Fayette County, PA | Gas Property | Dec 2025 |
| 338 | MCGOWAN | Washington County, PA | Gas Property | Dec 2025 |
| 339 | MCGRAW | Wyoming County, PA | Gas Property | Apr 2026 |
| 340 | MCGRAW | Warren County, PA | Gas Property | Dec 2025 |
| 341 | MCGRAW | Indiana County, PA | Gas Property | Dec 2025 |
| 342 | MCGROARTY | Bradford County, PA | Gas Property | Apr 2026 |
| 343 | MCILVAINE CENTRAL PAD 15 | Westmoreland County, PA | Gas Property | Apr 2026 |
| 344 | MCINTIRE | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 345 | MCINTIRE | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 346 | MCINTIRE | Indiana County, PA | Gas Property | Dec 2025 |
| 347 | MCIVER MCALEVY | Crawford County, PA | Gas Property | Dec 2025 |
| 348 | MCJUNKIN | Allegheny County, PA | Oil & Gas Property | Dec 2025 |
| 349 | MCKAY | Armstrong County, PA | Gas Property | Dec 2025 |
| 350 | MCKAY | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 351 | MCKEAN | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 352 | MCKEAN M | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 353 | MCKEEHEN | Clearfield County, PA | Gas Property | Dec 2025 |
| 354 | MCKINLEY | Armstrong County, PA | Oil & Gas Property | Dec 2025 |
| 355 | MCKOWN M | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 356 | MCLAUGHLIN | Westmoreland County, PA | Gas Property | Dec 2025 |
| 357 | MCLAUGHLIN | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 358 | MCLAUGHLIN J | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 359 | MCMAHAN S | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 360 | MCMAHON | Bradford County, PA | Gas Property | Apr 2026 |
| 361 | MCMASTER UNIT | Washington County, PA | Gas Property | Apr 2026 |
| 362 | MCMICHAEL | Beaver County, PA | Gas Property | Apr 2026 |
| 363 | MCMILLEN LEASE 25 | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 364 | MCMINN 86 | Greene County, PA | Gas Property | Dec 2025 |
| 365 | MCMUNN | Clarion County, PA | Gas Property | Dec 2025 |
| 366 | MCMURRAY 01 031 0 | Bradford County, PA | Gas Property | Apr 2026 |
| 367 | MCNARY | Washington County, PA | Gas Property | Dec 2025 |
| 368 | MCNEELY | Greene County, PA | Gas Property | Apr 2026 |
| 369 | MCNEESE | Armstrong County, PA | Gas Property | Dec 2025 |
| 370 | MCNELLIE | Venango County, PA | Gas Property | Dec 2025 |
| 371 | MCNETT | Tioga County, PA | Gas Property | Aug 2023 |
| 372 | MCQUINN M | Venango County, PA | Oil & Gas Property | Dec 2017 |
| 373 | MCWILLIAMS | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 374 | MCWILLIAMS UNIT | Lycoming County, PA | Gas Property | Apr 2026 |
| 375 | MCWREATH UNIT | Washington County, PA | Gas Property | Apr 2026 |
| 376 | MDS ENERGY | Armstrong County, PA | Gas Property | Apr 2026 |
| 377 | MEAD | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 378 | MEAD | Venango County, PA | Oil Property | Dec 2025 |
| 379 | MEAD B | Susquehanna County, PA | Gas Property | Apr 2026 |
| 380 | MEAD CS | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 381 | MEADOWS | Greene County, PA | Gas Property | Apr 2026 |
| 382 | MEADVILLE REDI MIX | Crawford County, PA | Gas Property | Dec 2025 |
| 383 | MEALEY LEASE WD | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 384 | MEAS | Bradford County, PA | Gas Property | Apr 2026 |
| 385 | MEDDINGS | Washington County, PA | Gas Property | Dec 2024 |
| 386 | MEEKER | Centre County, PA | Gas Property | Dec 2025 |
| 387 | MEHALICK UNIT | Sullivan County, PA | Gas Property | Apr 2026 |
| 388 | MEHALKO UNIT | Venango County, PA | Gas Property | Dec 2025 |
| 389 | MEL BRA | Bradford County, PA | Gas Property | Apr 2026 |
| 390 | MEL PASSEUR | Forest County, PA | Oil Property | Dec 2008 |
| 391 | MELE UNIT | Washington County, PA | Gas Property | Apr 2026 |
| 392 | MELENYZER | Washington County, PA | Gas Property | Dec 2025 |
| 393 | MELISSA J HAAG | Clearfield County, PA | Gas Property | Dec 2025 |
| 394 | MELVIN R TISSUE | Fayette County, PA | Gas Property | Apr 2026 |
| 395 | MELZER | Greene County, PA | Oil & Gas Property | Apr 2026 |
| 396 | MENALLEN | Fayette County, PA | Gas Property | Dec 2025 |
| 397 | MENALLEN COKE CO | Fayette County, PA | Gas Property | Dec 2025 |
| 398 | MENDENHALL | Jefferson County, PA | Oil & Gas Property | Dec 2025 |
| 399 | MENG | Bradford County, PA | Gas Property | Apr 2026 |
| 400 | MENICHI UNIT | Washington County, PA | Gas Property | Apr 2026 |