| 4801 | MAWC TR | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4802 | MAWC TR 1 | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4803 | MAWC TR 2 | Westmoreland County, PA | Gas Property | Mar 2024 |
| 4804 | MAWC TR 51 HUTCHIN | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4805 | MAWC TRACT 3 | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4806 | MAX M LLOYD | Indiana County, PA | Gas Property | Dec 2023 |
| 4807 | MAX M SHOFESTALL | Clarion County, PA | Gas Property | Dec 2022 |
| 4808 | MAX TENN | Armstrong County, PA | Gas Property | Dec 2023 |
| 4809 | MAX THEODORE CRAIG | Indiana County, PA | Gas Property | Dec 2023 |
| 4810 | MAYO | Jefferson County, PA | Gas Property | Dec 2023 |
| 4811 | MAZURE WILLIAM 12118 | Washington County, PA | Gas Property | Feb 2024 |
| 4812 | MAZZARA | Wyoming County, PA | Gas Property | Mar 2024 |
| 4813 | MC ANULTY | Indiana County, PA | Gas Property | Dec 2023 |
| 4814 | MCADOO UNIT | Washington County, PA | Oil & Gas Property | Feb 2024 |
| 4815 | MCARDLE | Crawford County, PA | Oil & Gas Property | Dec 2023 |
| 4816 | MCAWLEY | Armstrong County, PA | Gas Property | Dec 2023 |
| 4817 | MCBETH | Fayette County, PA | Gas Property | Dec 2023 |
| 4818 | MCBETH | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 4819 | MCBROOM 1 | Westmoreland County, PA | Gas Property | Mar 2024 |
| 4820 | MCC PARTNERS | Washington County, PA | Oil & Gas Property | Feb 2024 |
| 4821 | MCCABE | Bradford County, PA | Gas Property | Feb 2024 |
| 4822 | MCCALL UNIT | Butler County, PA | Oil & Gas Property | Mar 2024 |
| 4823 | MCCALMONT | Venango County, PA | Oil Property | Dec 2015 |
| 4824 | MCCALMONT | Butler County, PA | Oil & Gas Property | Dec 2016 |
| 4825 | MCCARTHY UNIT MCCARTHY 1H | Wyoming County, PA | Gas Property | Mar 2024 |
| 4826 | MCCARTHY UNIT P&G WAREHOUSE 1 MCCARTHY | Wyoming County, PA | Gas Property | Mar 2024 |
| 4827 | MCCARTNEY | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 4828 | MCCAULEY M | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4829 | MCCAY M-598 | Clearfield County, PA | Gas Property | Dec 2023 |
| 4830 | MCCHESNEY | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 4831 | MCCLAIN | Fayette County, PA | Oil & Gas Property | Dec 2023 |
| 4832 | MCCLAIN 8 | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 4833 | MCCLAY J | Washington County, PA | Oil Property | Dec 1993 |
| 4834 | MCCLEARY | Jefferson County, PA | Gas Property | Dec 2022 |
| 4835 | MCCLIMANS | Mercer County, PA | Oil & Gas Property | Dec 2021 |
| 4836 | MCCLOSKEY L | Mercer County, PA | Gas Property | Dec 2023 |
| 4837 | MCCLURE | Greene County, PA | Gas Property | Dec 2023 |
| 4838 | MCCLURE HEIRS | Greene County, PA | Gas Property | Dec 2023 |
| 4839 | MCCLURE M | Jefferson County, PA | Gas Property | Dec 2023 |
| 4840 | MCCONNAUGHEY | Indiana County, PA | Gas Property | Dec 2023 |
| 4841 | MCCONNELL | Bradford County, PA | Gas Property | Feb 2024 |
| 4842 | MCCONNELL | Indiana County, PA | Gas Property | Dec 2023 |
| 4843 | MCCOOL | Warren County, PA | Oil & Gas Property | Dec 2001 |
| 4844 | MCCOOL & MCCOOL | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 4845 | MCCOOL BROS STONEHAM LEASE LOT 466 | Warren County, PA | Oil & Gas Property | Dec 2023 |
| 4846 | MCCORMACK | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4847 | MCCORMICK 00 | Indiana County, PA | Gas Property | Dec 2023 |
| 4848 | MCCOY | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 4849 | MCCOY SMALL | Forest County, PA | Oil & Gas Property | Dec 2023 |
| 4850 | MCCRACKEN | Clearfield County, PA | Gas Property | Dec 2023 |
| 4851 | MCCRADY | Westmoreland County, PA | Oil & Gas Property | Dec 2023 |
| 4852 | MCCREA | Butler County, PA | Gas Property | Feb 2024 |
| 4853 | MCCREIGHT | Jefferson County, PA | Gas Property | Dec 2023 |
| 4854 | MCCULLOUGH | Indiana County, PA | Gas Property | Dec 2023 |
| 4855 | MCCULLOUGH | Crawford County, PA | Oil & Gas Property | Dec 2023 |
| 4856 | MCCULLOUGH | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4857 | MCCULLOUGH | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 4858 | MCCULLOUGH | Mercer County, PA | Oil & Gas Property | Mar 2024 |
| 4859 | MCCULLOUGH H | Armstrong County, PA | Gas Property | Dec 2023 |
| 4860 | MCCULLOUGH IMOGENE | Armstrong County, PA | Gas Property | Dec 2023 |
| 4861 | MCDANEL BEA | Beaver County, PA | Gas Property | Mar 2024 |
| 4862 | MCDIVITT | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4863 | MCDONOUGH | Washington County, PA | Gas Property | Feb 2024 |
| 4864 | MCDONOUGH | Wyoming County, PA | Gas Property | Feb 2024 |
| 4865 | MCDOWELL | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 4866 | MCDOWELL | Mercer County, PA | Oil & Gas Property | Dec 2021 |
| 4867 | MCELHINNY | Butler County, PA | Oil & Gas Property | Mar 2024 |
| 4868 | MCELHOES-BUCHANAN | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 4869 | MCELROY | Armstrong County, PA | Gas Property | Dec 2023 |
| 4870 | MCENANEY | Bradford County, PA | Gas Property | Feb 2024 |
| 4871 | MCFADDEN | Clearfield County, PA | Gas Property | Dec 2023 |
| 4872 | MCFARLAND | Lawrence County, PA | Gas Property | Dec 2023 |
| 4873 | MCFATE | Venango County, PA | Oil Property | Dec 2023 |
| 4874 | MCGARRELL | Forest County, PA | Oil Property | Dec 2021 |
| 4875 | MCGAUGHEY | Armstrong County, PA | Gas Property | Dec 2023 |
| 4876 | MCGAVIN | Wyoming County, PA | Gas Property | Feb 2024 |
| 4877 | MCGEE | Clearfield County, PA | Oil & Gas Property | Dec 2023 |
| 4878 | MCGILL | Fayette County, PA | Gas Property | Dec 2023 |
| 4879 | MCGOWAN | Washington County, PA | Gas Property | Dec 2023 |
| 4880 | MCGRAW | Warren County, PA | Gas Property | Dec 2023 |
| 4881 | MCGRAW | Indiana County, PA | Gas Property | Dec 2023 |
| 4882 | MCGRAW | Wyoming County, PA | Gas Property | Feb 2024 |
| 4883 | MCGROARTY | Bradford County, PA | Gas Property | Feb 2024 |
| 4884 | MCILVAINE CENTRAL PAD 15 | Westmoreland County, PA | Gas Property | Mar 2024 |
| 4885 | MCINTIRE | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 4886 | MCINTIRE | Indiana County, PA | Gas Property | Dec 2023 |
| 4887 | MCINTIRE | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 4888 | MCIVER MCALEVY | Crawford County, PA | Gas Property | Dec 2023 |
| 4889 | MCJUNKIN | Allegheny County, PA | Oil & Gas Property | Dec 2023 |
| 4890 | MCKAY | Armstrong County, PA | Gas Property | Dec 2023 |
| 4891 | MCKAY | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4892 | MCKEAN | Mercer County, PA | Oil & Gas Property | Dec 2023 |
| 4893 | MCKEAN M | McKean County, PA | Oil & Gas Property | Dec 2023 |
| 4894 | MCKEEHEN | Clearfield County, PA | Gas Property | Dec 2023 |
| 4895 | MCKINLEY | Armstrong County, PA | Oil & Gas Property | Dec 2023 |
| 4896 | MCKOWN M | Warren County, PA | Oil & Gas Property | Dec 2011 |
| 4897 | MCLAUGHLIN | Westmoreland County, PA | Gas Property | Dec 2023 |
| 4898 | MCLAUGHLIN J | Mercer County, PA | Oil & Gas Property | Dec 2021 |
| 4899 | MCMAHAN S | Warren County, PA | Oil & Gas Property | Dec 2022 |
| 4900 | MCMAHON | Bradford County, PA | Gas Property | Mar 2024 |