| 5001 | MATT DALE | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5002 | MATT WILL FARMS | Bradford County, PA | Gas Property | Aug 2025 |
| 5003 | MATTESON | Potter County, PA | Gas Property | Dec 2024 |
| 5004 | MATTHEW ANTHONY | Armstrong County, PA | Gas Property | Dec 2024 |
| 5005 | MATTHEW HEIRS | Allegheny County, PA | Oil & Gas Property | Dec 2024 |
| 5006 | MATTHEW MILLER | Armstrong County, PA | Gas Property | Feb 2025 |
| 5007 | MATTHEWS | Greene County, PA | Oil & Gas Property | Aug 2025 |
| 5008 | MATTIE | Armstrong County, PA | Gas Property | Dec 2024 |
| 5009 | MATTOCKS UNIT MATTOCKS | Wyoming County, PA | Gas Property | Aug 2025 |
| 5010 | MATTY/MOMYER | Westmoreland County, PA | Gas Property | Aug 2025 |
| 5011 | MATWAY | Fayette County, PA | Gas Property | Dec 2024 |
| 5012 | MATZ 824 | Tioga County, PA | Gas Property | Aug 2025 |
| 5013 | MAUDE E. CUMMIN | Armstrong County, PA | Gas Property | Dec 2024 |
| 5014 | MAURICE | Armstrong County, PA | Gas Property | Dec 2024 |
| 5015 | MAURICE M SINAN ET UX | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 5016 | MAVILLA 42 | Washington County, PA | Oil & Gas Property | Dec 2024 |
| 5017 | MAWC TR | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5018 | MAWC TR 1 | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5019 | MAWC TR 2 | Westmoreland County, PA | Gas Property | Aug 2025 |
| 5020 | MAWC TR 51 HUTCHIN | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5021 | MAWC TRACT 3 | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5022 | MAX M LLOYD | Indiana County, PA | Gas Property | Dec 2024 |
| 5023 | MAX M SHOFESTALL | Clarion County, PA | Gas Property | Dec 2024 |
| 5024 | MAX TENN | Armstrong County, PA | Gas Property | Dec 2024 |
| 5025 | MAX THEODORE CRAIG | Indiana County, PA | Gas Property | Dec 2024 |
| 5026 | MAXSON | Potter County, PA | Gas Property | Dec 2024 |
| 5027 | MAXSON | Potter County, PA | Gas Property | Dec 2024 |
| 5028 | MAYO | Jefferson County, PA | Gas Property | Dec 2024 |
| 5029 | MAYO LOT | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5030 | MAYS | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 5031 | MAZURE WILLIAM 12118 | Washington County, PA | Gas Property | Aug 2025 |
| 5032 | MAZZARA | Wyoming County, PA | Gas Property | Aug 2025 |
| 5033 | MC ANULTY | Indiana County, PA | Gas Property | Dec 2024 |
| 5034 | MCADOO UNIT | Washington County, PA | Oil & Gas Property | Aug 2025 |
| 5035 | MCARDLE | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 5036 | MCAWLEY | Armstrong County, PA | Gas Property | Dec 2024 |
| 5037 | MCBETH | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 5038 | MCBETH | Fayette County, PA | Gas Property | Dec 2024 |
| 5039 | MCBROOM 1 | Westmoreland County, PA | Gas Property | Aug 2025 |
| 5040 | MCC PARTNERS | Washington County, PA | Oil & Gas Property | Aug 2025 |
| 5041 | MCCABE | Bradford County, PA | Gas Property | Aug 2025 |
| 5042 | MCCALL UNIT | Butler County, PA | Oil & Gas Property | Aug 2025 |
| 5043 | MCCALMONT | Venango County, PA | Oil Property | Dec 2015 |
| 5044 | MCCALMONT | Butler County, PA | Oil & Gas Property | Dec 2016 |
| 5045 | MCCARTHY UNIT MCCARTHY 1H | Wyoming County, PA | Gas Property | Aug 2025 |
| 5046 | MCCARTHY UNIT P&G WAREHOUSE 1 MCCARTHY | Wyoming County, PA | Gas Property | Aug 2025 |
| 5047 | MCCARTNEY | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5048 | MCCAULEY M | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5049 | MCCAY M-598 | Clearfield County, PA | Gas Property | Dec 2024 |
| 5050 | MCCHESNEY | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5051 | MCCLAIN | Fayette County, PA | Oil & Gas Property | Dec 2024 |
| 5052 | MCCLAIN 8 | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 5053 | MCCLAY J | Washington County, PA | Oil Property | Dec 1993 |
| 5054 | MCCLEARY | Jefferson County, PA | Gas Property | Dec 2024 |
| 5055 | MCCLIMANS | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5056 | MCCLOSKEY L | Mercer County, PA | Gas Property | Dec 2024 |
| 5057 | MCCLURE | Greene County, PA | Gas Property | Dec 2024 |
| 5058 | MCCLURE HEIRS | Greene County, PA | Gas Property | Dec 2024 |
| 5059 | MCCLURE M | Jefferson County, PA | Gas Property | Dec 2024 |
| 5060 | MCCONNAUGHEY | Indiana County, PA | Gas Property | Dec 2024 |
| 5061 | MCCONNELL | Bradford County, PA | Gas Property | Aug 2025 |
| 5062 | MCCONNELL | Indiana County, PA | Gas Property | Dec 2024 |
| 5063 | MCCOOL | Warren County, PA | Oil & Gas Property | Dec 2001 |
| 5064 | MCCOOL & MCCOOL | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5065 | MCCOOL BROS STONEHAM LEASE LOT 466 | Warren County, PA | Oil & Gas Property | Dec 2024 |
| 5066 | MCCORMACK | McKean County, PA | Oil & Gas Property | Dec 2024 |
| 5067 | MCCORMICK 00 | Indiana County, PA | Gas Property | Dec 2024 |
| 5068 | MCCOY | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 5069 | MCCOY | Clarion County, PA | Oil & Gas Property | Dec 2020 |
| 5070 | MCCOY SMALL | Forest County, PA | Oil & Gas Property | Dec 2024 |
| 5071 | MCCRACKEN | Clearfield County, PA | Gas Property | Dec 2024 |
| 5072 | MCCRADY | Westmoreland County, PA | Oil & Gas Property | Dec 2024 |
| 5073 | MCCREA | Butler County, PA | Gas Property | Aug 2025 |
| 5074 | MCCREIGHT | Jefferson County, PA | Gas Property | Dec 2023 |
| 5075 | MCCULLOUGH | Indiana County, PA | Gas Property | Dec 2024 |
| 5076 | MCCULLOUGH | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5077 | MCCULLOUGH | Crawford County, PA | Oil & Gas Property | Dec 2024 |
| 5078 | MCCULLOUGH | Mercer County, PA | Oil & Gas Property | Aug 2025 |
| 5079 | MCCULLOUGH | Westmoreland County, PA | Gas Property | Aug 2025 |
| 5080 | MCCULLOUGH H | Armstrong County, PA | Gas Property | Dec 2024 |
| 5081 | MCCULLOUGH IMOGENE | Armstrong County, PA | Gas Property | Dec 2024 |
| 5082 | MCDANEL BEA | Beaver County, PA | Gas Property | Aug 2025 |
| 5083 | MCDIVITT | Westmoreland County, PA | Gas Property | Dec 2024 |
| 5084 | MCDONALD | Venango County, PA | Oil Property | Dec 2024 |
| 5085 | MCDONOUGH | Wyoming County, PA | Gas Property | Aug 2025 |
| 5086 | MCDONOUGH | Washington County, PA | Gas Property | Aug 2025 |
| 5087 | MCDOWELL | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5088 | MCDOWELL | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5089 | MCELHINNY | Butler County, PA | Oil & Gas Property | Aug 2025 |
| 5090 | MCELHOES-BUCHANAN | Indiana County, PA | Oil & Gas Property | Dec 2024 |
| 5091 | MCELROY | Armstrong County, PA | Gas Property | Dec 2024 |
| 5092 | MCENANEY | Bradford County, PA | Gas Property | Aug 2025 |
| 5093 | MCFADDEN | Clearfield County, PA | Gas Property | Dec 2024 |
| 5094 | MCFALL UNIT | Mercer County, PA | Oil & Gas Property | Dec 2024 |
| 5095 | MCFARLAND | Lawrence County, PA | Gas Property | Dec 2024 |
| 5096 | MCFATE | Venango County, PA | Oil & Gas Property | Dec 2024 |
| 5097 | MCGARRELL | Forest County, PA | Oil Property | Dec 2021 |
| 5098 | MCGAUGHEY | Armstrong County, PA | Gas Property | Dec 2024 |
| 5099 | MCGAVIN | Wyoming County, PA | Gas Property | Aug 2025 |
| 5100 | MCGEE | Clearfield County, PA | Oil & Gas Property | Dec 2024 |