| 81201 | MAST | Holmes County, OH | Oil & Gas Property | Dec 2021 |
| 81202 | MAST | Holmes County, OH | Oil & Gas Property | Dec 2024 |
| 81203 | MAST | Nacogdoches County, TX | Oil & Gas Property | Feb 2025 |
| 81204 | MAST | Nacogdoches County, TX | Oil & Gas Property | Feb 2025 |
| 81205 | MAST | Lawrence County, PA | Oil & Gas Property | Dec 2024 |
| 81206 | MAST A. T. B | Nacogdoches County, TX | Oil & Gas Property | Jan 2025 |
| 81207 | MAST GAS UNIT A | Nacogdoches County, TX | Oil & Gas Property | Feb 2025 |
| 81208 | MAST M | Clarion County, PA | Oil & Gas Property | Dec 2024 |
| 81209 | MAST UNIT | Custer County, OK | Oil & Gas Property | Feb 2025 |
| 81210 | MASTEL 14-24TFH | Dunn County, ND | Oil & Gas Property | Mar 2025 |
| 81211 | MASTEL 41-18TFH | Stark County, ND | Oil & Gas Property | Mar 2025 |
| 81212 | MASTEN | Cochran County, TX | Oil & Gas Property | Feb 2025 |
| 81213 | MASTER FEDERAL COM | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 81214 | MASTER SPLINTER | Washington County, PA | Gas Property | Mar 2025 |
| 81215 | MASTERBRAY | Fayette County, PA | Oil & Gas Property | Mar 2025 |
| 81216 | MASTERS | Bexar County, TX | Oil & Gas Property | Feb 2025 |
| 81217 | MASTERS | Venango County, PA | Oil Property | Dec 2024 |
| 81218 | MASTERS | Pittsburg County, OK | Gas Property | Feb 2025 |
| 81219 | MASTERS | Garvin County, OK | Oil Property | Jan 2022 |
| 81220 | MASTERS | Garfield County, OK | Oil & Gas Property | Feb 2012 |
| 81221 | MASTERS | Pottawatomie County, OK | Oil Property | Feb 2025 |
| 81222 | MASTERS | Johnson County, TX | Oil & Gas Property | Feb 2025 |
| 81223 | MASTERS HN MON | Harrison County, OH | Oil & Gas Property | Dec 2024 |
| 81224 | MASTERS UNIT | Howard County, TX | Oil & Gas Property | Feb 2025 |
| 81225 | MASTERSON | Pecos County, TX | Oil & Gas Property | Feb 2025 |
| 81226 | MASTERSON | Pecos County, TX | Oil & Gas Property | Feb 2025 |
| 81227 | MASTERSON | Reagan County, TX | Oil & Gas Property | Oct 2023 |
| 81228 | MASTERSON | Potter County, TX | Gas Property | Feb 2025 |
| 81229 | MASTERSON | Potter County, TX | Oil & Gas Property | Feb 2025 |
| 81230 | MASTERSON | Potter County, TX | Oil & Gas Property | Feb 2025 |
| 81231 | MASTERSON | Perry County, OH | Oil & Gas Property | Dec 2001 |
| 81232 | MASTERSON | Perry County, OH | Oil & Gas Property | Dec 2024 |
| 81233 | MASTERSON | Morgan County, OH | Oil & Gas Property | Dec 2012 |
| 81234 | MASTERSON | Ottawa County, MI | Oil Property | Apr 2025 |
| 81235 | MASTERSON | Brazoria County, TX | Oil & Gas Property | Feb 2025 |
| 81236 | MASTERSON | Brazoria County, TX | Oil Property | Feb 2025 |
| 81237 | MASTERSON | King County, TX | Oil & Gas Property | Feb 2025 |
| 81238 | MASTERSON 2 | Logan County, OK | Oil & Gas Property | Feb 2025 |
| 81239 | MASTERSON 37 | Sutton County, TX | Oil & Gas Property | Feb 2025 |
| 81240 | MASTERSON 87 | Potter County, TX | Oil & Gas Property | Jan 2025 |
| 81241 | MASTERSON IRR | Brazoria County, TX | Oil & Gas Property | Sep 2018 |
| 81242 | MASTERSON RED CAVE UNIT | Moore County, TX | Oil & Gas Property | Feb 2025 |
| 81243 | MASTIFF FEDERAL | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 81244 | MASTODON | Tarrant County, TX | Gas Property | Feb 2025 |
| 81245 | MASTON | Coshocton County, OH | Oil & Gas Property | Dec 2024 |
| 81246 | MASTON 34-27 | McKenzie County, ND | Oil & Gas Property | Mar 2025 |
| 81247 | MASTRANGELO | Geauga County, OH | Oil & Gas Property | Dec 2024 |
| 81248 | MATA-THOMAS GU | Webb County, TX | Oil & Gas Property | Feb 2025 |
| 81249 | MATADOR | Richland County, MT | Oil & Gas Property | Mar 2025 |
| 81250 | MATADOR | Motley County, TX | Oil & Gas Property | Feb 2025 |
| 81251 | MATADOR 19 STATE | Lea County, NM | Oil Property | Mar 2025 |
| 81252 | MATADOR 2734-7H | Divide County, ND | Oil & Gas Property | Mar 2025 |
| 81253 | MATADOR 6-33 | Reeves County, TX | Oil & Gas Property | Feb 2025 |
| 81254 | MATADOR 646 | Yoakum County, TX | Oil & Gas Property | Feb 2025 |
| 81255 | MATADOR COWEY ORCA | Dewitt County, TX | Oil & Gas Property | Nov 2024 |
| 81256 | MATADOR DANYSH ORCA | Karnes County, TX | Oil & Gas Property | Feb 2025 |
| 81257 | MATADOR K. LOVE ORCA | Dewitt County, TX | Oil & Gas Property | Jun 2019 |
| 81258 | MATADOR MR NBL 30 | Noble County, OH | Oil & Gas Property | Dec 2024 |
| 81259 | MATADOR PAWELEK | Karnes County, TX | Oil & Gas Property | Feb 2025 |
| 81260 | MATADOR SICKENIUS | Karnes County, TX | Oil & Gas Property | Feb 2025 |
| 81261 | MATAWA MINING & DEV | Boone County, WV | Gas Property | Dec 2021 |
| 81262 | MATCEK | Burleson County, TX | Oil & Gas Property | Feb 2025 |
| 81263 | MATCEK-ONDRASEK UNIT | Burleson County, TX | Oil & Gas Property | Feb 2025 |
| 81264 | MATCHETT | Jones County, TX | Oil & Gas Property | Feb 2025 |
| 81265 | MATCHETT FARM 12122 | Washington County, PA | Gas Property | Mar 2025 |
| 81266 | MATCHLESS 28 | Martin County, TX | Oil & Gas Property | Feb 2025 |
| 81267 | MATECHA MARY | Jones County, TX | Oil & Gas Property | Feb 2025 |
| 81268 | MATEER | Armstrong County, PA | Gas Property | Dec 2024 |
| 81269 | MATEER/SBI | Armstrong County, PA | Gas Property | Dec 2024 |
| 81270 | MATEJEK 01 | Dewitt County, TX | Oil & Gas Property | Feb 2025 |
| 81271 | MATER | Stanton County, KS | Gas Property | Jan 2025 |
| 81272 | MATER GAS UNIT | Stanton County, KS | Gas Property | Jan 2025 |
| 81273 | MATERN | Los Angeles County, CA | Oil & Gas Property | Dec 2019 |
| 81274 | MATERN A | Morton County, KS | Gas Property | Jan 2025 |
| 81275 | MATHENEY ED | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 81276 | MATHENY | Washington County, OH | Oil & Gas Property | Dec 2024 |
| 81277 | MATHENY | McIntosh County, OK | Gas Property | Nov 2018 |
| 81278 | MATHENY | Gilmer County, WV | Oil & Gas Property | Dec 2021 |
| 81279 | MATHENY, C. NORMAN & WANDA | Harrison County, WV | Gas Property | Dec 2021 |
| 81280 | MATHER | Stafford County, KS | Oil Property | Jan 2025 |
| 81281 | MATHER | Glacier County, MT | Gas Property | Mar 2025 |
| 81282 | MATHER PEAK | Converse County, WY | Oil & Gas Property | Mar 2025 |
| 81283 | MATHER RANCH 167 (ALLOCATION) 3H | Hemphill County, TX | Oil & Gas Property | Feb 2025 |
| 81284 | MATHERLY | Creek County, OK | Oil Property | Dec 2024 |
| 81285 | MATHERLY | Creek County, OK | Oil & Gas Property | Dec 2024 |
| 81286 | MATHERLY 6 | Uinta County, WY | Oil & Gas Property | Mar 2025 |
| 81287 | MATHERS | Guernsey County, OH | Oil & Gas Property | Dec 2024 |
| 81288 | MATHERS | Lea County, NM | Oil & Gas Property | Mar 2025 |
| 81289 | MATHERS | Hemphill County, TX | Oil & Gas Property | Feb 2025 |
| 81290 | MATHERS | Hemphill County, TX | Oil & Gas Property | Feb 2025 |
| 81291 | MATHERS | Hemphill County, TX | Oil & Gas Property | Feb 2025 |
| 81292 | MATHERS | Gray County, TX | Oil & Gas Property | Mar 2012 |
| 81293 | MATHERS | Gray County, TX | Oil & Gas Property | Feb 2025 |
| 81294 | MATHERS | Gray County, TX | Gas Property | Feb 2025 |
| 81295 | MATHERS | Lynn County, TX | Oil & Gas Property | Feb 2025 |
| 81296 | MATHERS | Coke County, TX | Oil & Gas Property | Jan 2025 |
| 81297 | MATHERS-STATE 172-156 CL EX 1H | Hemphill County, TX | Oil & Gas Property | Feb 2025 |
| 81298 | MATHES | Pratt County, KS | Oil & Gas Property | Jan 2025 |
| 81299 | MATHES | Edwards County, KS | Oil & Gas Property | May 1985 |
| 81300 | MATHES | Grant County, KS | Gas Property | Jan 2025 |