| 91201 | OK STATE 18-17-6 | Kingfisher County, OK | Oil & Gas Property | Aug 2024 |
| 91202 | OKAGAWA | Garfield County, CO | Oil & Gas Property | Aug 2024 |
| 91203 | OKAPI | Brazos County, TX | Oil & Gas Property | Aug 2024 |
| 91204 | OKAPI STATE UNIT | Reeves County, TX | Oil & Gas Property | Jul 2024 |
| 91205 | OKARCHE | Canadian County, OK | Oil & Gas Property | Aug 2024 |
| 91206 | OKARCHE | Canadian County, OK | Oil & Gas Property | Aug 2024 |
| 91207 | OKC 1 | Oklahoma County, OK | Oil & Gas Property | Jan 2018 |
| 91208 | OKC 2 | Oklahoma County, OK | Oil & Gas Property | Jan 2018 |
| 91209 | OKC 3 | Oklahoma County, OK | Oil & Gas Property | Mar 2016 |
| 91210 | OKC 4 | Oklahoma County, OK | Oil & Gas Property | Mar 2016 |
| 91211 | OKEEF | Mahoning County, OH | Oil & Gas Property | Dec 2023 |
| 91212 | OKEEFE | Stanton County, KS | Gas Property | Jul 2024 |
| 91213 | OKEEFE | Archer County, TX | Oil & Gas Property | Mar 2020 |
| 91214 | OKEEFE | Caddo Parish, LA | Oil & Gas Property | Jun 2024 |
| 91215 | OKELL | Adams County, MS | Oil & Gas Property | Sep 2024 |
| 91216 | OKELLY | Adams County, MS | Oil Property | Feb 1986 |
| 91217 | OKELLY, OTHELL | Jones County, TX | Oil & Gas Property | Aug 2024 |
| 91218 | OKESON | Wallace County, KS | Oil & Gas Property | Apr 2024 |
| 91219 | OKFUSKA | Seminole County, OK | Oil Property | Jul 2024 |
| 91220 | OKIE | Major County, OK | Oil & Gas Property | Sep 2023 |
| 91221 | OKIE STATE 33-28-12 1H | Alfalfa County, OK | Oil & Gas Property | Sep 2024 |
| 91222 | OKINAWA 24-11 UNIT | Reeves County, TX | Oil & Gas Property | Aug 2024 |
| 91223 | OKLAHOMA | Cimarron County, OK | Oil & Gas Property | Sep 2024 |
| 91224 | OKLAHOMA | Beaver County, OK | Oil & Gas Property | Jul 2024 |
| 91225 | OKLAHOMA | Cleveland County, OK | Oil & Gas Property | Jan 2018 |
| 91226 | OKLAHOMA 32 FEE | Eddy County, NM | Oil & Gas Property | Sep 2024 |
| 91227 | OKLAHOMA STATE | Texas County, OK | Oil & Gas Property | Aug 2024 |
| 91228 | OKMULGEE MANNING | Okmulgee County, OK | Oil Property | Mar 2017 |
| 91229 | OKORONKWO | Canadian County, OK | Oil & Gas Property | Aug 2024 |
| 91230 | OKTOBERFEST | San Juan County, NM | Oil & Gas Property | Sep 2024 |
| 91231 | OLA MCCANN | San Patricio County, TX | Oil & Gas Property | Oct 2018 |
| 91232 | OLAF 42X-11 | Williams County, ND | Oil & Gas Property | Sep 2024 |
| 91233 | OLAF LARSEN 1 | McKenzie County, ND | Oil & Gas Property | Sep 2024 |
| 91234 | OLAF TUFTE B | Bottineau County, ND | Oil Property | Dec 1997 |
| 91235 | OLAI | Johnson County, TX | Gas Property | Jun 2017 |
| 91236 | OLAJUWON | Freestone County, TX | Oil & Gas Property | Aug 2024 |
| 91237 | OLAN | Le Flore County, OK | Gas Property | Aug 2024 |
| 91238 | OLANDER | Rice County, KS | Oil & Gas Property | Jul 2024 |
| 91239 | OLANDER | Weld County, CO | Oil & Gas Property | Sep 2024 |
| 91240 | OLANDER | Weld County, CO | Oil & Gas Property | May 2018 |
| 91241 | OLANDER CARL | Jones County, TX | Oil & Gas Property | Aug 2024 |
| 91242 | OLAUGHLIN | Hansford County, TX | Oil & Gas Property | Aug 2024 |
| 91243 | OLAUGHLIN | Palo Pinto County, TX | Oil & Gas Property | Aug 2024 |
| 91244 | OLAUGHLIN 1 | Kearny County, KS | Gas Property | Jul 2024 |
| 91245 | OLBERDING | Nemaha County, KS | Oil Property | Jul 2024 |
| 91246 | OLCESE | Kern County, CA | Oil & Gas Property | Aug 2024 |
| 91247 | OLCESE ESTATE | Kern County, CA | Oil Property | Aug 2024 |
| 91248 | OLCOTT | Tarrant County, TX | Oil & Gas Property | Aug 2024 |
| 91249 | OLCOTT D | Ward County, TX | Oil & Gas Property | Dec 2023 |
| 91250 | OLCOTT H. W | Gray County, TX | Gas Property | Aug 2024 |
| 91251 | OLCOTT NORTH A UNIT | Tarrant County, TX | Oil & Gas Property | Aug 2024 |
| 91252 | OLCZAK | Greene County, PA | Gas Property | Sep 2024 |
| 91253 | OLD BEAR USA 11-17H | Mountrail County, ND | Oil & Gas Property | Sep 2024 |
| 91254 | OLD BEAR WOMAN BIA | Blaine County, OK | Oil & Gas Property | Aug 2024 |
| 91255 | OLD BLUE 25 | Upton County, TX | Oil & Gas Property | Aug 2024 |
| 91256 | OLD BORDER | Toole County, MT | Oil Property | Sep 2024 |
| 91257 | OLD BRASS & NEEDLE | Montague County, TX | Oil & Gas Property | Dec 2021 |
| 91258 | OLD CRAB 1506 | Kingfisher County, OK | Oil & Gas Property | Aug 2024 |
| 91259 | OLD FAITHFUL | Woods County, OK | Oil & Gas Property | Nov 2015 |
| 91260 | OLD GLORY 5-8-10 | Caddo County, OK | Oil & Gas Property | Sep 2024 |
| 91261 | OLD GLORY HOLE | Natrona County, WY | Oil Property | Oct 2018 |
| 91262 | OLD HICKORY | McKenzie County, ND | Oil & Gas Property | Sep 2024 |
| 91263 | OLD HICKORY PLTN | Iberville Parish, LA | Oil & Gas Property | Jun 2024 |
| 91264 | OLD HICKORY STATE | Reeves County, TX | Oil & Gas Property | Aug 2024 |
| 91265 | OLD HOME MANOR | Indiana County, PA | Oil & Gas Property | Dec 2023 |
| 91266 | OLD HUGH 18-09-11 | Kingfisher County, OK | Oil & Gas Property | Aug 2024 |
| 91267 | OLD INDIAN DRAW UNIT | Eddy County, NM | Oil & Gas Property | Sep 2024 |
| 91268 | OLD IRONSIDE 0405 | Pecos County, TX | Oil & Gas Property | Aug 2024 |
| 91269 | OLD LOCO UNIT | Eddy County, NM | Oil & Gas Property | Aug 2024 |
| 91270 | OLD MCDONALD FARM UNIT | Washington County, PA | Gas Property | Sep 2024 |
| 91271 | OLD MONARCH STATE 12 | Reeves County, TX | Oil & Gas Property | Aug 2024 |
| 91272 | OLD OAK FARM 6-10-3 | Jefferson County, OH | Gas Property | Jun 2024 |
| 91273 | OLD OCEAN UNIT | Brazoria County, TX | Oil & Gas Property | Aug 2024 |
| 91274 | OLD PARTNER | Loving County, TX | Oil & Gas Property | Aug 2024 |
| 91275 | OLD PARTNER 54-1-30 | Loving County, TX | Oil & Gas Property | Aug 2024 |
| 91276 | OLD RANCH CANYON 7 FEDERAL | Eddy County, NM | Oil & Gas Property | May 2019 |
| 91277 | OLD RANCH KNOLL 8 FEDERAL | Eddy County, NM | Oil & Gas Property | Feb 2015 |
| 91278 | OLD RICKYS RIDGE 31_30-14N-7W | Canadian County, OK | Oil & Gas Property | Aug 2024 |
| 91279 | OLD RIVER RANCH DIM | Dimmit County, TX | Oil & Gas Property | Aug 2024 |
| 91280 | OLD ROCK COM | Rio Arriba County, NM | Oil & Gas Property | Sep 2024 |
| 91281 | OLD ROSEBUD 1524-36 | Chaves County, NM | Oil & Gas Property | Apr 2024 |
| 91282 | OLD ROSEBUD 37 UNIT | Culberson County, TX | Oil & Gas Property | Aug 2024 |
| 91283 | OLD STONE BANK | Summit County, OH | Oil & Gas Property | Dec 2009 |
| 91284 | OLD SWITCHEROO 418 | Yoakum County, TX | Oil & Gas Property | Aug 2024 |
| 91285 | OLD TOWN | Johnson County, TX | Gas Property | Aug 2024 |
| 91286 | OLD TOWN BEAGLE CLUB | Clearfield County, PA | Gas Property | Dec 2023 |
| 91287 | OLD TOWN FARMS | Mason County, WV | Oil & Gas Property | Dec 2021 |
| 91288 | OLD TRADING POST | San Juan County, NM | Oil & Gas Property | Nov 2022 |
| 91289 | OLD VIC 1 | Reeves County, TX | Oil & Gas Property | Aug 2024 |
| 91290 | OLD WEATHERFORD | Tarrant County, TX | Oil & Gas Property | Aug 2024 |
| 91291 | OLD YUCCA | Reeves County, TX | Oil & Gas Property | Mar 2024 |
| 91292 | OLD ZAPATA DEEP G | Zapata County, TX | Oil & Gas Property | Aug 2024 |
| 91293 | OLDAKER | Sherman County, TX | Gas Property | Aug 2024 |
| 91294 | OLDEN-PAULL UNIT 1 | Brazos County, TX | Oil & Gas Property | Aug 2024 |
| 91295 | OLDENBURG | Fayette County, TX | Oil & Gas Property | Aug 2024 |
| 91296 | OLDFIELD | Beckham County, OK | Oil & Gas Property | Aug 2024 |
| 91297 | OLDHAM | Ellis County, KS | Oil Property | Feb 2024 |
| 91298 | OLDHAM | Midland County, TX | Oil & Gas Property | Jul 2024 |
| 91299 | OLDHAM | Pawnee County, OK | Oil & Gas Property | Sep 2024 |
| 91300 | OLDHAM | Archer County, TX | Oil & Gas Property | Aug 2024 |