| 4001 | KEATING | Forest County, PA | Oil Property | Dec 2007 |
| 4002 | KEBERT DEV INC | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 4003 | KEBERT DEVELOPERS INC | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 4004 | KEELER | Erie County, PA | Gas Property | Dec 2024 |
| 4005 | KEELER HOLLOW | Bradford County, PA | Gas Property | Oct 2025 |
| 4006 | KEENE UNIT | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 4007 | KEEVES J | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4008 | KEFFER | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 4009 | KEIR N | Bradford County, PA | Gas Property | Oct 2025 |
| 4010 | KEIR S | Bradford County, PA | Gas Property | Oct 2025 |
| 4011 | KEISER | Clearfield County, PA | Gas Property | Dec 2024 |
| 4012 | KEITH D SNYDER | Jefferson County, PA | Gas Property | Dec 2024 |
| 4013 | KEITH SNYDER | Jefferson County, PA | Gas Property | Dec 2024 |
| 4014 | KELL | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4015 | KELL | Warren County, PA | Gas Property | Dec 2024 |
| 4016 | KELL FARM KM | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4017 | KELLAR | Forest County, PA | Oil Property | Dec 2024 |
| 4018 | KELLER | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4019 | KELLER | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4020 | KELLER & GEIST | Jefferson County, PA | Gas Property | Dec 2024 |
| 4021 | KELLY LAND | Armstrong County, PA | Gas Property | Dec 2024 |
| 4022 | KEMERER | Greene County, PA | Gas Property | Dec 2024 |
| 4023 | KEMSOD | Greene County, PA | Gas Property | Oct 2025 |
| 4024 | KEN MENTCH | Indiana County, PA | Gas Property | Dec 2024 |
| 4025 | KEN TON 902 | Potter County, PA | Gas Property | Oct 2025 |
| 4026 | KENDALL | Indiana County, PA | Gas Property | Dec 2024 |
| 4027 | KENDALL EASTBRANCH 1 | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 4028 | KENDALL UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4029 | KENMAR HC A | Lycoming County, PA | Gas Property | Oct 2025 |
| 4030 | KENNEDY | Elk County, PA | Oil & Gas Property | Dec 2019 |
| 4031 | KENNEDY | Jefferson County, PA | Gas Property | Dec 2024 |
| 4032 | KENNEDY | Jefferson County, PA | Gas Property | Dec 2024 |
| 4033 | KENNEDY 137 | Tioga County, PA | Gas Property | Oct 2025 |
| 4034 | KENNEDY DEV | McKean County, PA | Oil Property | Dec 1997 |
| 4035 | KENNEDY UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4036 | KENNEDY UNIT | Butler County, PA | Oil & Gas Property | Oct 2025 |
| 4037 | KENNEMUTH | Clarion County, PA | Oil & Gas Property | Oct 2025 |
| 4038 | KENNEMUTH | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 4039 | KENNETH | Jefferson County, PA | Gas Property | Dec 2024 |
| 4040 | KENNETH | Armstrong County, PA | Gas Property | Dec 2024 |
| 4041 | KENNETH ALSOP | Indiana County, PA | Gas Property | Dec 2024 |
| 4042 | KENNETH BARRETT | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 4043 | KENNETH C WALTERS | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 4044 | KENNETH D SHERRY TRACT | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4045 | KENNETH E DICK | Indiana County, PA | Gas Property | Dec 2024 |
| 4046 | KENNETH HARCHICK | Clearfield County, PA | Oil & Gas Property | Dec 2024 |
| 4047 | KENNETH K. DEAN | Armstrong County, PA | Gas Property | Dec 2024 |
| 4048 | KENNETH L & BARBARA E EKEY | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4049 | KENNETH L MARTIN A | Lycoming County, PA | Gas Property | Oct 2025 |
| 4050 | KENNETH O SMAY | Armstrong County, PA | Gas Property | Dec 2022 |
| 4051 | KENNETH P ATKINSON | Armstrong County, PA | Gas Property | Dec 2024 |
| 4052 | KENNETH PARK | Jefferson County, PA | Gas Property | Dec 2024 |
| 4053 | KENNETH SHERRY | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 4054 | KENNETH T SCHRINER A | Lycoming County, PA | Gas Property | Oct 2025 |
| 4055 | KENNEY HEIRS | Indiana County, PA | Gas Property | Dec 2024 |
| 4056 | KENNIS | Jefferson County, PA | Gas Property | Dec 2024 |
| 4057 | KENSINGER UNIT | Lycoming County, PA | Gas Property | Oct 2025 |
| 4058 | KENT | Bradford County, PA | Gas Property | Oct 2025 |
| 4059 | KENT | McKean County, PA | Oil Property | Dec 2011 |
| 4060 | KENT COAL MINING | Indiana County, PA | Gas Property | Dec 2024 |
| 4061 | KENYON | Bradford County, PA | Gas Property | Oct 2025 |
| 4062 | KEPHART | Lawrence County, PA | Oil & Gas Property | Oct 2025 |
| 4063 | KEPPLE | Armstrong County, PA | Gas Property | Dec 2024 |
| 4064 | KEPPLE | Armstrong County, PA | Oil & Gas Property | Dec 2024 |
| 4065 | KEPPLE | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 4066 | KERINS | Mercer County, PA | Gas Property | Dec 2024 |
| 4067 | KERMIT M KENNEDY ET AL | Fayette County, PA | Gas Property | Dec 2024 |
| 4068 | KERN UNIT | Butler County, PA | Gas Property | Oct 2025 |
| 4069 | KEROTEST MF | Westmoreland County, PA | Gas Property | Oct 2025 |
| 4070 | KERR | Greene County, PA | Gas Property | May 2025 |
| 4071 | KERR | Clarion County, PA | Gas Property | Dec 2024 |
| 4072 | KERR 213 | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 4073 | KERR UNIT | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4074 | KERRICK UNIT | Bradford County, PA | Gas Property | Oct 2025 |
| 4075 | KERUSKIN UNIT | Washington County, PA | Gas Property | Dec 2024 |
| 4076 | KESLAR | Fayette County, PA | Gas Property | Dec 2024 |
| 4077 | KESPELHER | Armstrong County, PA | Gas Property | Dec 2024 |
| 4078 | KESSEL | McKean County, PA | Oil & Gas Property | Dec 2011 |
| 4079 | KETNER | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 4080 | KEVECH | Washington County, PA | Gas Property | Oct 2025 |
| 4081 | KEWANEE OIL CO | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4082 | KEYES | Warren County, PA | Gas Property | Dec 2024 |
| 4083 | KEYSTONE | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 4084 | KEYSTONE STATE PARK | Westmoreland County, PA | Gas Property | Dec 2024 |
| 4085 | KEYSTONE UNIT MIRABELLI KEYSTONE 1H | Wyoming County, PA | Gas Property | Oct 2025 |
| 4086 | KHOURI UNIT | Washington County, PA | Gas Property | Oct 2025 |
| 4087 | KIBBE | Erie County, PA | Gas Property | Dec 2020 |
| 4088 | KIBUK | Armstrong County, PA | Gas Property | Dec 2024 |
| 4089 | KIEFFER UNIT | Greene County, PA | Gas Property | Oct 2025 |
| 4090 | KIELAR D | Susquehanna County, PA | Gas Property | Oct 2025 |
| 4091 | KIFER | Armstrong County, PA | Gas Property | Dec 2024 |
| 4092 | KIGER B | Greene County, PA | Gas Property | Dec 2019 |
| 4093 | KIGHTLINGER | Warren County, PA | Gas Property | Dec 2024 |
| 4094 | KIKTA UNIT | Fayette County, PA | Gas Property | Oct 2025 |
| 4095 | KILE | Wyoming County, PA | Gas Property | Oct 2025 |
| 4096 | KILEY A UNIT 1H | Butler County, PA | Gas Property | Oct 2025 |
| 4097 | KILHOFFER | Elk County, PA | Oil & Gas Property | Dec 2024 |
| 4098 | KIMMEL | Armstrong County, PA | Gas Property | Dec 2024 |
| 4099 | KIMMEL PEART LOUDEN | Armstrong County, PA | Gas Property | Dec 2024 |
| 4100 | KINDERMAN | Clearfield County, PA | Gas Property | Dec 2020 |