| 4301 | L M HILL | Armstrong County, PA | Gas Property | Dec 2025 |
| 4302 | L M SPENCER | Clearfield County, PA | Gas Property | Dec 2025 |
| 4303 | L MASENGALE 00 | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4304 | L PHILLIPS | Washington County, PA | Gas Property | Dec 2025 |
| 4305 | L RAMSEY | Clarion County, PA | Gas Property | Dec 2025 |
| 4306 | L ROSS 00 | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4307 | L S WALKER & J K NEVLING | Clearfield County, PA | Gas Property | Dec 2023 |
| 4308 | L SNYDER | Butler County, PA | Oil & Gas Property | Dec 2025 |
| 4309 | L THOMPSON | Erie County, PA | Gas Property | Dec 2025 |
| 4310 | L W HICKS | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4311 | L WADDLE | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4312 | L&J EQUIPMENT | Fayette County, PA | Gas Property | Dec 2025 |
| 4313 | L&L CONSTRUCTION UNIT A | Bradford County, PA | Gas Property | Apr 2026 |
| 4314 | L&L PROPERTIES UNIT | Butler County, PA | Oil & Gas Property | Apr 2026 |
| 4315 | L. KINGSLEY | Bradford County, PA | Gas Property | Apr 2026 |
| 4316 | L103 7H | Butler County, PA | Gas Property | Apr 2026 |
| 4317 | LA CARTE ENTERPRISES | Indiana County, PA | Gas Property | Dec 2025 |
| 4318 | LABUDA | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4319 | LACARTE ENTERPRISES | Indiana County, PA | Gas Property | Dec 2025 |
| 4320 | LACERTA | Butler County, PA | Gas Property | Apr 2026 |
| 4321 | LACKAWANNOCK JAMES | Mercer County, PA | Oil & Gas Property | Apr 2026 |
| 4322 | LACKAWANNOCK WENGERD | Mercer County, PA | Oil & Gas Property | Apr 2026 |
| 4323 | LACKO | Greene County, PA | Gas Property | Apr 2026 |
| 4324 | LADDIE NOEL | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 4325 | LAKE CITY IND INC | Erie County, PA | Gas Property | Dec 2023 |
| 4326 | LALLEY | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 4327 | LAMAR TRUST | Greene County, PA | Gas Property | Apr 2026 |
| 4328 | LAMB FARM | Venango County, PA | Oil Property | Dec 2025 |
| 4329 | LAMB FARM (WITCO CORP) BL | Venango County, PA | Oil Property | Dec 2000 |
| 4330 | LAMBERT | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 4331 | LAMBERT FARMS | Sullivan County, PA | Gas Property | Apr 2026 |
| 4332 | LAMBERT R | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4333 | LAMONT | Elk County, PA | Oil & Gas Property | Dec 2019 |
| 4334 | LAMOREE | Warren County, PA | Gas Property | Dec 2025 |
| 4335 | LAMPERSKI | Butler County, PA | Oil & Gas Property | Sep 2025 |
| 4336 | LAMPERSKI NV58 | Washington County, PA | Gas Property | Apr 2026 |
| 4337 | LAMPMAN | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 4338 | LANAGER | Clearfield County, PA | Gas Property | Dec 2025 |
| 4339 | LANCO | Greene County, PA | Gas Property | Apr 2026 |
| 4340 | LAND MGMT ET AL | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 4341 | LANDFRIED | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 4342 | LANDGRAF | Butler County, PA | Oil & Gas Property | Apr 2026 |
| 4343 | LANDMAN | Fayette County, PA | Gas Property | Dec 2025 |
| 4344 | LANDMESSER BRA | Bradford County, PA | Gas Property | Mar 2026 |
| 4345 | LANE | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4346 | LANFRANKIE | Indiana County, PA | Gas Property | Dec 2025 |
| 4347 | LANGLEY | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 4348 | LANGLEY | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 4349 | LANGMAN | Venango County, PA | Gas Property | Dec 2025 |
| 4350 | LANSING D WETMORE | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 4351 | LANTZ | Erie County, PA | Oil & Gas Property | Dec 2025 |
| 4352 | LAPINSKI | Mercer County, PA | Gas Property | Dec 2025 |
| 4353 | LAPPE | Indiana County, PA | Gas Property | Dec 2025 |
| 4354 | LAROSA | Washington County, PA | Gas Property | Dec 2025 |
| 4355 | LARRY KALIKA | Erie County, PA | Gas Property | Dec 2025 |
| 4356 | LARRYS CREEK | Lycoming County, PA | Gas Property | Apr 2026 |
| 4357 | LARSON | Centre County, PA | Gas Property | Dec 2025 |
| 4358 | LARUE C 0 | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4359 | LASCO UNIT MIRABELLI 1 LASCO 1H | Wyoming County, PA | Gas Property | Apr 2026 |
| 4360 | LASH | Westmoreland County, PA | Oil & Gas Property | Apr 2026 |
| 4361 | LASH | Westmoreland County, PA | Oil & Gas Property | Feb 2026 |
| 4362 | LASH | Armstrong County, PA | Gas Property | Apr 2026 |
| 4363 | LASHER | Wyoming County, PA | Gas Property | Apr 2026 |
| 4364 | LASSINGER UNIT | Butler County, PA | Oil & Gas Property | Apr 2026 |
| 4365 | LATHROP FARM TRUST UNIT | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4366 | LATROBE BREWING | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4367 | LATROBE-WIMMER | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4368 | LATSHAW | Venango County, PA | Oil Property | Dec 2015 |
| 4369 | LATTIMER | Bradford County, PA | Gas Property | Apr 2026 |
| 4370 | LAUER D 0 | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4371 | LAUFFENBURGER | Warren County, PA | Oil & Gas Property | Dec 2015 |
| 4372 | LAUFFENBURGER VL | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 4373 | LAUFFER | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4374 | LAUFFER | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4375 | LAUFFERNBURGER VL | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 4376 | LAUGER 1 | Warren County, PA | Gas Property | Dec 2024 |
| 4377 | LAUGHLIN HEIRS 00 | Indiana County, PA | Gas Property | Dec 2025 |
| 4378 | LAUNTZ | Westmoreland County, PA | Gas Property | Dec 2022 |
| 4379 | LAURA ALLISON | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 4380 | LAURA B. HOFFMAN | Armstrong County, PA | Gas Property | Dec 2025 |
| 4381 | LAUREL | Bradford County, PA | Gas Property | Apr 2026 |
| 4382 | LAUREL HILL | Lycoming County, PA | Gas Property | Apr 2026 |
| 4383 | LAURINE SPICHER | Clearfield County, PA | Gas Property | Dec 2025 |
| 4384 | LAWRENCE | Armstrong County, PA | Gas Property | Dec 2025 |
| 4385 | LAWRENCE | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 4386 | LAWRENCE | Jefferson County, PA | Gas Property | Dec 2025 |
| 4387 | LAWRENCE BAYER EST | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 4388 | LAWRENCE BRUMAGIN | Erie County, PA | Gas Property | Dec 2025 |
| 4389 | LAWRENCE SHIPULA | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 4390 | LAWRY | Indiana County, PA | Gas Property | Dec 2025 |
| 4391 | LAY BEATRICE IOLA | Warren County, PA | Gas Property | Dec 2025 |
| 4392 | LAYARD GASTON | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 4393 | LAYMAN | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4394 | LAYTON | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 4395 | LAYTON BRA | Bradford County, PA | Gas Property | Apr 2026 |
| 4396 | LAZY ACRES UNIT | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4397 | LB HUBER 1 | Jefferson County, PA | Gas Property | Dec 2025 |
| 4398 | LBROS UNIT | Washington County, PA | Oil & Gas Property | Apr 2026 |
| 4399 | LC WYN | Jefferson County, PA | Oil & Gas Property | Dec 2025 |
| 4400 | LC WYNKOOP | Jefferson County, PA | Oil & Gas Property | Dec 2025 |