| 4101 | KOZIOL | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4102 | KRAEER UNIT | Washington County, PA | Gas Property | Feb 2024 |
| 4103 | KRAEER WEST UNIT | Washington County, PA | Gas Property | Feb 2024 |
| 4104 | KRAJACIC UNIT | Washington County, PA | Gas Property | Feb 2024 |
| 4105 | KRAUSE | Clearfield County, PA | Gas Property | Dec 2023 |
| 4106 | KRAVETSKY | Indiana County, PA | Gas Property | Dec 2023 |
| 4107 | KRAVETSKY | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4108 | KREITZER | Tioga County, PA | Gas Property | Feb 2024 |
| 4109 | KREPPS | Fayette County, PA | Gas Property | Feb 2024 |
| 4110 | KRESIC UNIT | Washington County, PA | Gas Property | Feb 2024 |
| 4111 | KRICK | Clearfield County, PA | Oil & Gas Property | Dec 2023 |
| 4112 | KRIEG | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 4113 | KRISE BRA | Bradford County, PA | Gas Property | Feb 2024 |
| 4114 | KRISULEVICZ | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4115 | KROPFF | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4116 | KROPIEWNICKI 07 038 01 J 1H | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4117 | KROPP 07 017 | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4118 | KROPP/MALJOVEC M | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 4119 | KRUKOWSKI | Fayette County, PA | Gas Property | Dec 2023 |
| 4120 | KRUMENACKER LUMBER | Cambria County, PA | Gas Property | Dec 2023 |
| 4121 | KRUMENACKER LUMBER | Cambria County, PA | Gas Property | Dec 2023 |
| 4122 | KUBISTA | Clearfield County, PA | Gas Property | Dec 2023 |
| 4123 | KUBITZA | Fayette County, PA | Gas Property | Dec 2023 |
| 4124 | KUHLMAN 05 258 01 M 1H | Bradford County, PA | Gas Property | Feb 2024 |
| 4125 | KUHN | Allegheny County, PA | Oil & Gas Property | Dec 2023 |
| 4126 | KUHN CLV1H | Washington County, PA | Gas Property | Feb 2024 |
| 4127 | KUHNS | Armstrong County, PA | Gas Property | Feb 2024 |
| 4128 | KUHNS | Clarion County, PA | Oil & Gas Property | Dec 2023 |
| 4129 | KUHNS 3 | Westmoreland County, PA | Gas Property | Feb 2024 |
| 4130 | KULAK | Crawford County, PA | Gas Property | Dec 2023 |
| 4131 | KUNKLE | Indiana County, PA | Gas Property | Dec 2023 |
| 4132 | KUNSELMAN | Clarion County, PA | Gas Property | Dec 2023 |
| 4133 | KUNSMAN 2 | Clearfield County, PA | Gas Property | Dec 2023 |
| 4134 | KUNTZ | Jefferson County, PA | Gas Property | Dec 2023 |
| 4135 | KUNTZ | Jefferson County, PA | Gas Property | Dec 2023 |
| 4136 | KUPETSKY WYO | Wyoming County, PA | Gas Property | Feb 2024 |
| 4137 | KUPSCZNK UNIT | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4138 | KURT H HAUFLER A | Lycoming County, PA | Gas Property | Feb 2024 |
| 4139 | KURTZ | Lawrence County, PA | Gas Property | Dec 2023 |
| 4140 | KURTZ | Lawrence County, PA | Oil & Gas Property | Dec 2023 |
| 4141 | KUSHEQUA | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4142 | KUTEK | Fayette County, PA | Gas Property | Dec 2023 |
| 4143 | KUZIAK UNIT | Sullivan County, PA | Gas Property | Feb 2024 |
| 4144 | KYLANDER | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 4145 | KYLE | McKean County, PA | Oil & Gas Property | Dec 2020 |
| 4146 | KYNE UNIT | Butler County, PA | Oil & Gas Property | Feb 2024 |
| 4147 | KYSER | Mercer County, PA | Oil & Gas Property | Dec 2021 |
| 4148 | L A MEYRAN | Armstrong County, PA | Gas Property | Dec 2023 |
| 4149 | L BEAMER | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4150 | L BHUFF | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4151 | L BURTS | Susquehanna County, PA | Gas Property | Nov 2023 |
| 4152 | L C GIBSON | Armstrong County, PA | Gas Property | Dec 2023 |
| 4153 | L CZIRJAK | Armstrong County, PA | Gas Property | Dec 2023 |
| 4154 | L E STARTZELL | Indiana County, PA | Gas Property | Dec 2023 |
| 4155 | L G DIXON | Indiana County, PA | Gas Property | Dec 2023 |
| 4156 | L H & MARGARET RHEA | Indiana County, PA | Gas Property | Dec 2023 |
| 4157 | L HITE | Cambria County, PA | Gas Property | Dec 2023 |
| 4158 | L J FEASEL | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 4159 | L K FULTON1714 | Venango County, PA | Oil Property | Dec 2021 |
| 4160 | L LEGNOSKY | Crawford County, PA | Gas Property | Dec 2015 |
| 4161 | L M HILL | Armstrong County, PA | Gas Property | Dec 2023 |
| 4162 | L M SPENCER | Clearfield County, PA | Gas Property | Dec 2023 |
| 4163 | L MASENGALE 00 | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 4164 | L PHILLIPS | Washington County, PA | Gas Property | Dec 2023 |
| 4165 | L RAMSEY | Clarion County, PA | Gas Property | Dec 2023 |
| 4166 | L ROSS 00 | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4167 | L S WALKER & J K NEVLING | Clearfield County, PA | Gas Property | Dec 2023 |
| 4168 | L SNYDER | Butler County, PA | Oil & Gas Property | Dec 2023 |
| 4169 | L THOMPSON | Erie County, PA | Gas Property | Dec 2018 |
| 4170 | L W HICKS | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 4171 | L WADDLE | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4172 | L&J EQUIPMENT | Fayette County, PA | Gas Property | Dec 2023 |
| 4173 | L&L CONSTRUCTION UNIT A | Bradford County, PA | Gas Property | Feb 2024 |
| 4174 | L&L PROPERTIES UNIT | Butler County, PA | Oil & Gas Property | Feb 2024 |
| 4175 | L. KINGSLEY | Bradford County, PA | Gas Property | Feb 2024 |
| 4176 | L103 7H | Butler County, PA | Gas Property | Feb 2024 |
| 4177 | LA CARTE ENTERPRISES | Indiana County, PA | Gas Property | Dec 2023 |
| 4178 | LABUDA | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 4179 | LACARTE ENTERPRISES | Indiana County, PA | Gas Property | Dec 2023 |
| 4180 | LACKAWANNOCK JAMES | Mercer County, PA | Oil & Gas Property | Feb 2024 |
| 4181 | LACKAWANNOCK WENGERD | Mercer County, PA | Oil & Gas Property | Feb 2024 |
| 4182 | LACKO | Greene County, PA | Gas Property | Feb 2024 |
| 4183 | LADDIE NOEL | Venango County, PA | Oil & Gas Property | Dec 2023 |
| 4184 | LAKE CITY IND INC | Erie County, PA | Gas Property | Dec 2023 |
| 4185 | LALLEY | Venango County, PA | Oil & Gas Property | Dec 2023 |
| 4186 | LAMAR TRUST | Greene County, PA | Gas Property | Feb 2024 |
| 4187 | LAMB FARM | Venango County, PA | Oil Property | Dec 2020 |
| 4188 | LAMB FARM (WITCO CORP) BL | Venango County, PA | Oil Property | Dec 2000 |
| 4189 | LAMBERT | Venango County, PA | Oil & Gas Property | Dec 2023 |
| 4190 | LAMBERT FARMS | Sullivan County, PA | Gas Property | Feb 2024 |
| 4191 | LAMBERT R | Susquehanna County, PA | Gas Property | Feb 2024 |
| 4192 | LAMONT | Elk County, PA | Oil & Gas Property | Dec 2019 |
| 4193 | LAMOREE | Warren County, PA | Gas Property | Dec 2021 |
| 4194 | LAMPERSKI NV58 | Washington County, PA | Gas Property | Feb 2024 |
| 4195 | LAMPERSKI UNIT | Butler County, PA | Oil & Gas Property | Feb 2024 |
| 4196 | LAMPMAN | Crawford County, PA | Oil & Gas Property | Dec 2023 |
| 4197 | LANAGER | Clearfield County, PA | Gas Property | Dec 2023 |
| 4198 | LANCO | Greene County, PA | Gas Property | Feb 2024 |
| 4199 | LAND MGMT ET AL | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4200 | LANDFRIED | Mercer County, PA | Oil & Gas Property | Dec 2021 |