| 4901 | MARTIN | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4902 | MARTIN | Crawford County, PA | Gas Property | Dec 2025 |
| 4903 | MARTIN | Jefferson County, PA | Gas Property | Dec 2025 |
| 4904 | MARTIN | Bradford County, PA | Gas Property | Jan 2026 |
| 4905 | MARTIN | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 4906 | MARTIN | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 4907 | MARTIN BEARER | Cambria County, PA | Gas Property | Dec 2025 |
| 4908 | MARTIN C. TATE | Clearfield County, PA | Gas Property | Dec 2025 |
| 4909 | MARTIN EDWARD 12273 | Washington County, PA | Gas Property | Apr 2026 |
| 4910 | MARTIN FONNER | Greene County, PA | Oil & Gas Property | Dec 2025 |
| 4911 | MARTIN L BEARER | Indiana County, PA | Gas Property | Dec 2025 |
| 4912 | MARTIN L BEARER | Cambria County, PA | Gas Property | Dec 2025 |
| 4913 | MARTIN L BEARER | Indiana County, PA | Gas Property | Dec 2025 |
| 4914 | MARTIN MARIETTA CORP | Preston County, WV | Gas Property | Dec 2025 |
| 4915 | MARTINCIC | Washington County, PA | Gas Property | Dec 2025 |
| 4916 | MARTINO UNIT | Bradford County, PA | Gas Property | Apr 2026 |
| 4917 | MARTZ | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 4918 | MARVIN | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4919 | MARVIN RUL | Clarion County, PA | Gas Property | Dec 2025 |
| 4920 | MARY BASH | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4921 | MARY BOGDANSKI | Indiana County, PA | Gas Property | Dec 2025 |
| 4922 | MARY CONARRO C | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 4923 | MARY CROYLE | Clarion County, PA | Gas Property | Dec 2025 |
| 4924 | MARY ELLEN HULLIHEN HEIRS | Clearfield County, PA | Gas Property | Dec 2025 |
| 4925 | MARY ETTA DUNMIRE | Westmoreland County, PA | Oil & Gas Property | Dec 2025 |
| 4926 | MARY HART RINN | Indiana County, PA | Gas Property | Dec 2025 |
| 4927 | MARY JAMES | Elk County, PA | Gas Property | Dec 2025 |
| 4928 | MARY KRKANICH | Beaver County, PA | Oil & Gas Property | Dec 2025 |
| 4929 | MARY M | Clearfield County, PA | Gas Property | Dec 2025 |
| 4930 | MARY M FLEMING | Indiana County, PA | Gas Property | Dec 2025 |
| 4931 | MARY MCGEE | Clearfield County, PA | Gas Property | Dec 2025 |
| 4932 | MARY PAUKOVICH | Indiana County, PA | Gas Property | Dec 2025 |
| 4933 | MARY RO | Venango County, PA | Oil & Gas Property | Dec 2025 |
| 4934 | MARYNCHAK UNIT | Washington County, PA | Gas Property | Apr 2026 |
| 4935 | MASE MONTE | Tioga County, PA | Gas Property | Apr 2026 |
| 4936 | MASSO | Susquehanna County, PA | Gas Property | Apr 2026 |
| 4937 | MAST | Lawrence County, PA | Oil & Gas Property | Dec 2025 |
| 4938 | MASTER SPLINTER | Washington County, PA | Gas Property | Apr 2026 |
| 4939 | MASTERBRAY | Fayette County, PA | Oil & Gas Property | Apr 2026 |
| 4940 | MASTERS | Venango County, PA | Oil Property | Dec 2025 |
| 4941 | MATCHETT FARM 12122 | Washington County, PA | Gas Property | Apr 2026 |
| 4942 | MATEER | Armstrong County, PA | Gas Property | Dec 2025 |
| 4943 | MATEER/SBI | Armstrong County, PA | Gas Property | Dec 2025 |
| 4944 | MATHEWS | McKean County, PA | Gas Property | Dec 2025 |
| 4945 | MATHEWS | Greene County, PA | Oil & Gas Property | Apr 2026 |
| 4946 | MATHEWS UNIT | Crawford County, PA | Gas Property | Dec 2025 |
| 4947 | MATSON | Forest County, PA | Oil & Gas Property | Dec 2025 |
| 4948 | MATSON | Jefferson County, PA | Oil & Gas Property | Dec 2025 |
| 4949 | MATSON 193 | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 4950 | MATSON MATSON | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 4951 | MATT | Sullivan County, PA | Gas Property | Apr 2026 |
| 4952 | MATT DALE | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4953 | MATT WILL FARMS | Bradford County, PA | Gas Property | Apr 2026 |
| 4954 | MATTESON | Potter County, PA | Gas Property | Dec 2025 |
| 4955 | MATTHEW ANTHONY | Armstrong County, PA | Gas Property | Dec 2025 |
| 4956 | MATTHEW HEIRS | Allegheny County, PA | Oil & Gas Property | Dec 2025 |
| 4957 | MATTHEW MILLER | Armstrong County, PA | Gas Property | Dec 2025 |
| 4958 | MATTHEWS | Greene County, PA | Oil & Gas Property | Apr 2026 |
| 4959 | MATTIE | Armstrong County, PA | Gas Property | Dec 2025 |
| 4960 | MATTOCKS UNIT MATTOCKS | Wyoming County, PA | Gas Property | Apr 2026 |
| 4961 | MATTY/MOMYER | Westmoreland County, PA | Gas Property | Apr 2026 |
| 4962 | MATWAY | Fayette County, PA | Gas Property | Dec 2025 |
| 4963 | MATZ 824 | Tioga County, PA | Gas Property | Apr 2026 |
| 4964 | MAUDE E. CUMMIN | Armstrong County, PA | Gas Property | Dec 2025 |
| 4965 | MAURICE | Armstrong County, PA | Gas Property | Dec 2025 |
| 4966 | MAURICE M. SINAN ETUX | Indiana County, PA | Oil & Gas Property | Dec 2025 |
| 4967 | MAVILLA 42 | Washington County, PA | Oil & Gas Property | Dec 2025 |
| 4968 | MAWC TR | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4969 | MAWC TR 1 | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4970 | MAWC TR 2 | Westmoreland County, PA | Gas Property | Mar 2026 |
| 4971 | MAWC TR 51 HUTCHIN | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4972 | MAWC TRACT 3 | Westmoreland County, PA | Gas Property | Dec 2025 |
| 4973 | MAX M LLOYD | Indiana County, PA | Gas Property | Dec 2025 |
| 4974 | MAX M SHOFESTALL | Clarion County, PA | Gas Property | Dec 2025 |
| 4975 | MAX TENN | Armstrong County, PA | Gas Property | Dec 2025 |
| 4976 | MAX THEODORE CRAIG | Indiana County, PA | Gas Property | Dec 2025 |
| 4977 | MAYO | Jefferson County, PA | Gas Property | Dec 2025 |
| 4978 | MAYO LOT | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 4979 | MAYS | Clarion County, PA | Oil & Gas Property | Dec 2025 |
| 4980 | MAZURE WILLIAM 12118 | Washington County, PA | Gas Property | Apr 2026 |
| 4981 | MAZZARA | Wyoming County, PA | Gas Property | Apr 2026 |
| 4982 | MC ANULTY | Indiana County, PA | Gas Property | Dec 2025 |
| 4983 | MCADOO UNIT | Washington County, PA | Oil & Gas Property | Apr 2026 |
| 4984 | MCARDLE | Crawford County, PA | Oil & Gas Property | Dec 2025 |
| 4985 | MCAWLEY | Armstrong County, PA | Gas Property | Dec 2025 |
| 4986 | MCBETH | Fayette County, PA | Oil & Gas Property | Dec 2025 |
| 4987 | MCBETH | Fayette County, PA | Gas Property | Dec 2025 |
| 4988 | MCBROOM 1 | Westmoreland County, PA | Gas Property | Apr 2026 |
| 4989 | MCC PARTNERS | Washington County, PA | Oil & Gas Property | Apr 2026 |
| 4990 | MCCABE | Bradford County, PA | Gas Property | Apr 2026 |
| 4991 | MCCALL UNIT | Butler County, PA | Oil & Gas Property | Apr 2026 |
| 4992 | MCCALMONT | Venango County, PA | Oil Property | Dec 2025 |
| 4993 | MCCALMONT | Butler County, PA | Oil & Gas Property | Dec 2016 |
| 4994 | MCCARTHY UNIT MCCARTHY 1H | Wyoming County, PA | Gas Property | Apr 2026 |
| 4995 | MCCARTHY UNIT P&G WAREHOUSE 1 MCCARTHY | Wyoming County, PA | Gas Property | Apr 2026 |
| 4996 | MCCARTNEY | Mercer County, PA | Oil & Gas Property | Dec 2025 |
| 4997 | MCCAULEY M | McKean County, PA | Oil & Gas Property | Dec 2025 |
| 4998 | MCCAY M-598 | Clearfield County, PA | Gas Property | Dec 2025 |
| 4999 | MCCHESNEY | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 5000 | MCCLAIN | Fayette County, PA | Oil & Gas Property | Dec 2025 |