| 4201 | KOVALIC | Fayette County, PA | Gas Property | Oct 2025 |
| 4202 | KOZAKOVSKY | Venango County, PA | Gas Property | Dec 2024 |
| 4203 | KOZIK BROTHERS | Butler County, PA | Oil & Gas Property | Oct 2025 |
| 4204 | KOZIOL | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4205 | KRAEER UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4206 | KRAEER WEST UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4207 | KRAJACIC UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4208 | KRAVETSKY | Indiana County, PA | Gas Property | Dec 2024 |
| 4209 | KRAVETSKY | Westmoreland County, PA | Gas Property | Dec 2024 |
| 4210 | KREITZER | Tioga County, PA | Gas Property | Oct 2025 |
| 4211 | KREPPS | Fayette County, PA | Gas Property | Oct 2025 |
| 4212 | KRESIC UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4213 | KRICK | Clearfield County, PA | Oil & Gas Property | Dec 2024 |
| 4214 | KRIEG | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4215 | KRISE BRA | Bradford County, PA | Gas Property | Oct 2025 |
| 4216 | KRISULEVICZ | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4217 | KROPFF | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4218 | KROPIEWNICKI 07 038 01 J 1H | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4219 | KROPP 07 017 | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4220 | KROPP/MALJOVEC M | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 4221 | KRUKOWSKI | Fayette County, PA | Gas Property | Dec 2024 |
| 4222 | KRUMENACKER LUMBER | Cambria County, PA | Gas Property | Dec 2024 |
| 4223 | KUBISTA | Clearfield County, PA | Gas Property | Dec 2024 |
| 4224 | KUBITZA | Fayette County, PA | Gas Property | Dec 2024 |
| 4225 | KUHLMAN 05 258 01 M 1H | Bradford County, PA | Gas Property | Oct 2025 |
| 4226 | KUHN | Allegheny County, PA | Oil & Gas Property | Dec 2024 |
| 4227 | KUHN CLV1H | Washington County, PA | Gas Property | Oct 2025 |
| 4228 | KUHNS | Armstrong County, PA | Gas Property | Oct 2025 |
| 4229 | KUHNS | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 4230 | KUHNS 3 | Westmoreland County, PA | Gas Property | Oct 2025 |
| 4231 | KULAK | Crawford County, PA | Gas Property | Dec 2024 |
| 4232 | KUNKLE | Indiana County, PA | Gas Property | Dec 2024 |
| 4233 | KUNSELMAN | Clarion County, PA | Gas Property | Dec 2024 |
| 4234 | KUNSMAN 2 | Clearfield County, PA | Gas Property | Dec 2024 |
| 4235 | KUNTZ | Jefferson County, PA | Gas Property | Dec 2024 |
| 4236 | KUNTZ | Jefferson County, PA | Gas Property | Dec 2024 |
| 4237 | KUPETSKY WYO | Wyoming County, PA | Gas Property | Oct 2025 |
| 4238 | KUPSCZNK UNIT | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4239 | KURT H HAUFLER A | Lycoming County, PA | Gas Property | Oct 2025 |
| 4240 | KURTZ | Lawrence County, PA | Oil & Gas Property | Dec 2024 |
| 4241 | KURTZ | Lawrence County, PA | Gas Property | Dec 2024 |
| 4242 | KURUTZ UNIT 1 | Fayette County, PA | Gas Property | Oct 2025 |
| 4243 | KUSHEQUA | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 4244 | KUTEK | Fayette County, PA | Gas Property | Dec 2024 |
| 4245 | KUZIAK UNIT | Sullivan County, PA | Gas Property | Oct 2025 |
| 4246 | KYLANDER | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4247 | KYLE | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 4248 | KYNE UNIT | Butler County, PA | Oil & Gas Property | Oct 2025 |
| 4249 | KYSER | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 4250 | L A MEYRAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 4251 | L BEAMER | Westmoreland County, PA | Gas Property | Dec 2024 |
| 4252 | L BHUFF | Westmoreland County, PA | Gas Property | Dec 2024 |
| 4253 | L BURTS | Susquehanna County, PA | Gas Property | Nov 2023 |
| 4254 | L C GIBSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 4255 | L CZIRJAK | Armstrong County, PA | Gas Property | Dec 2024 |
| 4256 | L E STARTZELL | Indiana County, PA | Gas Property | Dec 2024 |
| 4257 | L G DIXON | Indiana County, PA | Gas Property | Dec 2024 |
| 4258 | L H & MARGARET RHEA | Indiana County, PA | Gas Property | Dec 2024 |
| 4259 | L HITE | Cambria County, PA | Gas Property | Dec 2024 |
| 4260 | L J FEASEL | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4261 | L K FULTON1714 | Venango County, PA | Oil Property | Dec 2021 |
| 4262 | L LEGNOSKY | Crawford County, PA | Gas Property | Dec 2015 |
| 4263 | L M HILL | Armstrong County, PA | Gas Property | Dec 2024 |
| 4264 | L M SPENCER | Clearfield County, PA | Gas Property | Dec 2024 |
| 4265 | L MASENGALE 00 | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4266 | L PHILLIPS | Washington County, PA | Gas Property | Dec 2024 |
| 4267 | L RAMSEY | Clarion County, PA | Gas Property | Dec 2024 |
| 4268 | L ROSS 00 | Westmoreland County, PA | Gas Property | Dec 2024 |
| 4269 | L S WALKER & J K NEVLING | Clearfield County, PA | Gas Property | Dec 2024 |
| 4270 | L SNYDER | Butler County, PA | Oil & Gas Property | Dec 2024 |
| 4271 | L THOMPSON | Erie County, PA | Gas Property | Dec 2024 |
| 4272 | L W HICKS | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4273 | L WADDLE | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4274 | L&J EQUIPMENT | Fayette County, PA | Gas Property | Dec 2024 |
| 4275 | L&L CONSTRUCTION UNIT A | Bradford County, PA | Gas Property | Oct 2025 |
| 4276 | L&L PROPERTIES UNIT | Butler County, PA | Oil & Gas Property | Oct 2025 |
| 4277 | L. KINGSLEY | Bradford County, PA | Gas Property | Oct 2025 |
| 4278 | L103 7H | Butler County, PA | Gas Property | Oct 2025 |
| 4279 | LA CARTE ENTERPRISES | Indiana County, PA | Gas Property | Dec 2024 |
| 4280 | LABUDA | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4281 | LACARTE ENTERPRISES | Indiana County, PA | Gas Property | Dec 2024 |
| 4282 | LACERTA | Butler County, PA | Gas Property | Oct 2025 |
| 4283 | LACKAWANNOCK JAMES | Mercer County, PA | Oil & Gas Property | Oct 2025 |
| 4284 | LACKAWANNOCK WENGERD | Mercer County, PA | Oil & Gas Property | Oct 2025 |
| 4285 | LACKO | Greene County, PA | Gas Property | Oct 2025 |
| 4286 | LADDIE NOEL | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 4287 | LAKE CITY IND INC | Erie County, PA | Gas Property | Dec 2023 |
| 4288 | LALLEY | Venango County, PA | Oil & Gas Property | Dec 2023 |
| 4289 | LAMAR TRUST | Greene County, PA | Gas Property | Oct 2025 |
| 4290 | LAMB FARM | Venango County, PA | Oil Property | Dec 2020 |
| 4291 | LAMB FARM (WITCO CORP) BL | Venango County, PA | Oil Property | Dec 2000 |
| 4292 | LAMBERT | Venango County, PA | Oil & Gas Property | Dec 2023 |
| 4293 | LAMBERT FARMS | Sullivan County, PA | Gas Property | Oct 2025 |
| 4294 | LAMBERT R | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4295 | LAMONT | Elk County, PA | Oil & Gas Property | Dec 2019 |
| 4296 | LAMOREE | Warren County, PA | Gas Property | Dec 2024 |
| 4297 | LAMPERSKI | Butler County, PA | Oil & Gas Property | Sep 2025 |
| 4298 | LAMPERSKI NV58 | Washington County, PA | Gas Property | Oct 2025 |
| 4299 | LAMPMAN | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 4300 | LANAGER | Clearfield County, PA | Gas Property | Dec 2024 |