| 301 | ATCHESON 59 | Greene County, PA | Gas Property | Feb 2026 |
| 302 | ATGAS | Bradford County, PA | Gas Property | Feb 2026 |
| 303 | ATHENA | Westmoreland County, PA | Gas Property | Feb 2026 |
| 304 | ATKINSON | Venango County, PA | Gas Property | Dec 2024 |
| 305 | ATLANTIC CITY ELECTRIC COMPANY | Armstrong County, PA | Gas Property | Dec 2025 |
| 306 | ATLANTIC CRUSHED COKE | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 307 | ATLANTIS | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 308 | ATLAS POWDER | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 309 | AUEN | Indiana County, PA | Gas Property | Dec 2025 |
| 310 | AUGUSTINE | Susquehanna County, PA | Gas Property | Feb 2026 |
| 311 | AUGUSTINE GEORGE 11039 | Washington County, PA | Gas Property | Feb 2026 |
| 312 | AUKEMA | Wyoming County, PA | Gas Property | Feb 2026 |
| 313 | AUSTIN | Armstrong County, PA | Gas Property | Feb 2026 |
| 314 | AUSTIN DUNLAP | Clearfield County, PA | Gas Property | Dec 2025 |
| 315 | AUSTIN E 00 | Susquehanna County, PA | Gas Property | Feb 2026 |
| 316 | AVELLA LAND VENTURES UNIT | Washington County, PA | Gas Property | Feb 2026 |
| 317 | AVERILL | Warren County, PA | Gas Property | Dec 2024 |
| 318 | AVERY A 212 | Tioga County, PA | Gas Property | Feb 2026 |
| 319 | AYERS 05 005 0 | Bradford County, PA | Gas Property | Feb 2026 |
| 320 | B & P 13 | Jefferson County, PA | Gas Property | Dec 2025 |
| 321 | B & P 14 | Jefferson County, PA | Gas Property | Dec 2025 |
| 322 | B & S COAL CO | Armstrong County, PA | Gas Property | Dec 2025 |
| 323 | B A TOWNSEND | Armstrong County, PA | Gas Property | Dec 2025 |
| 324 | B BOBELAK | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 325 | B D DRUMMOND | Indiana County, PA | Gas Property | Dec 2025 |
| 326 | B D IRWIN | Washington County, PA | Oil & Gas Property | Dec 2025 |
| 327 | B D KELTZ | Westmoreland County, PA | Gas Property | Dec 2025 |
| 328 | B E F PROPERTIES | Allegheny County, PA | Gas Property | Dec 2025 |
| 329 | B FLEMING | Venango County, PA | Gas Property | Dec 2025 |
| 330 | B H WOODWARD | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 331 | B I LAY | Warren County, PA | Gas Property | Dec 2025 |
| 332 | B JOHNSTON | Fayette County, PA | Gas Property | Dec 2025 |
| 333 | B L SOLLE K | Venango County, PA | Oil & Gas Property | Dec 2018 |
| 334 | B LOWMASTER | Cambria County, PA | Gas Property | Dec 2025 |
| 335 | B MORGAN | Allegheny County, PA | Oil Property | Dec 2025 |
| 336 | B R WILLIAMS H | Indiana County, PA | Gas Property | Dec 2025 |
| 337 | B RUSSO | Susquehanna County, PA | Gas Property | Feb 2026 |
| 338 | B W AMALONG | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 339 | B W IR | Clearfield County, PA | Gas Property | Dec 2025 |
| 340 | B&O TRACT 00 | Indiana County, PA | Gas Property | Dec 2025 |
| 341 | B&P 26 | Armstrong County, PA | Gas Property | Dec 2025 |
| 342 | B. BLACKBURN 0 | Clearfield County, PA | Gas Property | Dec 2025 |
| 343 | B1 PER B1 | Beaver County, PA | Gas Property | Feb 2026 |
| 344 | B2 PER B2 | Beaver County, PA | Gas Property | Sep 2025 |
| 345 | B3 PER B3 | Beaver County, PA | Gas Property | Feb 2026 |
| 346 | B4 PER B4 | Beaver County, PA | Gas Property | Feb 2026 |
| 347 | BABICH | Westmoreland County, PA | Oil & Gas Property | Feb 2026 |
| 348 | BABY BEAR | Washington County, PA | Gas Property | Feb 2026 |
| 349 | BAC REALTY | Susquehanna County, PA | Gas Property | Feb 2026 |
| 350 | BACHELDER | Butler County, PA | Oil & Gas Property | Feb 2026 |
| 351 | BACKWARDS L | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 352 | BACORN BRA | Bradford County, PA | Gas Property | Dec 2025 |
| 353 | BAGNALL | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 354 | BAHL UNIT | Sullivan County, PA | Gas Property | Feb 2026 |
| 355 | BAILEY UNIT | Bradford County, PA | Gas Property | Feb 2026 |
| 356 | BAILLIE TRUST UNIT | Butler County, PA | Oil & Gas Property | Feb 2026 |
| 357 | BAILY | Fayette County, PA | Oil & Gas Property | Feb 2026 |
| 358 | BAIR STIFF | Indiana County, PA | Gas Property | Dec 2025 |
| 359 | BAIRD | Butler County, PA | Gas Property | Feb 2026 |
| 360 | BAKER | Fayette County, PA | Gas Property | Dec 2025 |
| 361 | BAKER | Susquehanna County, PA | Gas Property | Feb 2026 |
| 362 | BAKER | Susquehanna County, PA | Gas Property | Feb 2026 |
| 363 | BAKER | Armstrong County, PA | Gas Property | Dec 2025 |
| 364 | BAKER | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 365 | BAKER | Cambria County, PA | Gas Property | Dec 2025 |
| 366 | BAKER | Fayette County, PA | Gas Property | Dec 2025 |
| 367 | BAKER CAROL UNIT | Washington County, PA | Oil & Gas Property | Feb 2026 |
| 368 | BAKER NORTH | Susquehanna County, PA | Gas Property | Feb 2026 |
| 369 | BAKERSTOWN ROAD UNIT | Allegheny County, PA | Gas Property | Feb 2026 |
| 370 | BAKERTON ROD & GUN CLUB | Cambria County, PA | Gas Property | Dec 2025 |
| 371 | BALANCE WEST FRAZIER | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 372 | BALAZICK | Washington County, PA | Gas Property | Feb 2026 |
| 373 | BALD | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 374 | BALDUZZI | Bradford County, PA | Gas Property | Feb 2026 |
| 375 | BALENT | Bradford County, PA | Gas Property | Feb 2026 |
| 376 | BALL LOT | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 377 | BALL MEYER | Bradford County, PA | Gas Property | Feb 2026 |
| 378 | BALLIBAY | Bradford County, PA | Gas Property | Feb 2026 |
| 379 | BALLIE TRUST UNIT 3H | Butler County, PA | Oil & Gas Property | Feb 2026 |
| 380 | BALLTOWN 0 | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 381 | BALLTOWN TRUEMANS | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 382 | BALSIGER | Armstrong County, PA | Gas Property | Dec 2025 |
| 383 | BALTZLEY | Susquehanna County, PA | Gas Property | Feb 2026 |
| 384 | BALUCH | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 385 | BAME UNIT | Butler County, PA | Oil & Gas Property | Feb 2026 |
| 386 | BANKS | Clearfield County, PA | Gas Property | Dec 2025 |
| 387 | BAP VICTOR 2 | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 388 | BARBARA BOBELAK | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 389 | BARBARA GRIBBLE | Indiana County, PA | Gas Property | Dec 2025 |
| 390 | BARBINE | Tioga County, PA | Gas Property | Feb 2026 |
| 391 | BARCHIESI | Greene County, PA | Oil & Gas Property | Dec 2025 |
| 392 | BARCLAY | Bradford County, PA | Gas Property | Feb 2026 |
| 393 | BARE, WARREN UNIT | Washington County, PA | Gas Property | Feb 2026 |
| 394 | BARENCHIK | Jefferson County, PA | Gas Property | Dec 2025 |
| 395 | BARICKMAN | Crawford County, PA | Gas Property | Dec 2025 |
| 396 | BARICKMAN VICTOR UNIT | Crawford County, PA | Oil & Gas Property | Dec 2025 |
| 397 | BARILAR COAL CO | Jefferson County, PA | Gas Property | Dec 2025 |
| 398 | BARK EM SQUIRREL | Susquehanna County, PA | Gas Property | Feb 2026 |
| 399 | BARK HILL 00 | Armstrong County, PA | Gas Property | Dec 2025 |
| 400 | BARKER | Armstrong County, PA | Gas Property | Dec 2025 |