| 91901 | NRC 4 | Weld County, CO | Oil & Gas Property | May 2026 |
| 91902 | NRC 60 | Los Angeles County, CA | Oil Property | May 2026 |
| 91903 | NRC 7 | Los Angeles County, CA | Oil Property | May 2026 |
| 91904 | NRG 29 | Red River Parish, LA | Gas Property | Nov 2024 |
| 91905 | NRH 1H | Tarrant County, TX | Gas Property | May 2026 |
| 91906 | NRH 5H | Tarrant County, TX | Gas Property | May 2026 |
| 91907 | NRU W | Campbell County, WY | Oil & Gas Property | Mar 1979 |
| 91908 | NS 13 | Campbell County, WY | Gas Property | Jun 2015 |
| 91909 | NSCU | Bottineau County, ND | Oil & Gas Property | May 2026 |
| 91910 | NT FEDERAL | Sweetwater County, WY | Oil & Gas Property | Jun 2026 |
| 91911 | NU MEX | Lea County, NM | Oil Property | Nov 2013 |
| 91912 | NUCKOLLS | Barber County, KS | Oil & Gas Property | Apr 2026 |
| 91913 | NUCKOLLS | Pawnee County, KS | Gas Property | Mar 2026 |
| 91914 | NUCKOLLS | Pottawatomie County, OK | Oil & Gas Property | Nov 2023 |
| 91915 | NUCKOLLS | Miami County, KS | Oil Property | Apr 2026 |
| 91916 | NUCKOLLS, ARCHILEE | Hopkins County, KY | Oil Property | Dec 2024 |
| 91917 | NUCKOLS 1-31H | Caddo County, OK | Oil & Gas Property | Apr 2026 |
| 91918 | NUEAST MINING CORP. UNO | Kanawha County, WV | Gas Property | Dec 2021 |
| 91919 | NUECES | Karnes County, TX | Oil & Gas Property | May 2026 |
| 91920 | NUECES A | La Salle County, TX | Gas Property | May 2026 |
| 91921 | NUECES BAY | San Patricio County, TX | Oil & Gas Property | May 2026 |
| 91922 | NUECES LAND & LIVESTOCK | La Salle County, TX | Oil & Gas Property | Oct 2024 |
| 91923 | NUECES MINERALS CO | La Salle County, TX | Oil & Gas Property | May 2026 |
| 91924 | NUECES MINERALS COMPANY 68 | La Salle County, TX | Oil & Gas Property | May 2026 |
| 91925 | NUESSEN | Lyon County, KS | Oil Property | Nov 2025 |
| 91926 | NUGEN | Sumner County, KS | Oil Property | Mar 2026 |
| 91927 | NUGENT | Lasalle Parish, LA | Oil & Gas Property | Dec 2024 |
| 91928 | NUGENT | Tarrant County, TX | Oil & Gas Property | May 2026 |
| 91929 | NUGENT LD06-6 | Weld County, CO | Oil & Gas Property | May 2026 |
| 91930 | NUGENT UNIT | Gonzales County, TX | Oil & Gas Property | May 2026 |
| 91931 | NUGENT-BEAR TRT 4H | Tarrant County, TX | Gas Property | May 2026 |
| 91932 | NUGENT-WHITMAN 5H | Tarrant County, TX | Gas Property | May 2026 |
| 91933 | NUGGET | Kern County, CA | Oil & Gas Property | Jun 2026 |
| 91934 | NUGGET 6 31 FEDERAL COM | Eddy County, NM | Oil & Gas Property | May 2026 |
| 91935 | NUGGET 6 31 FEDERAL COM 014H | Eddy County, NM | Oil & Gas Property | May 2026 |
| 91936 | NUGGET UNIT | Washington County, CO | Oil Property | Aug 2017 |
| 91937 | NUGGET USA 14-20TFH | Mountrail County, ND | Oil & Gas Property | May 2026 |
| 91938 | NUHFER | Warren County, PA | Oil & Gas Property | Dec 2025 |
| 91939 | NUKERN | Kern County, CA | Oil & Gas Property | Jun 2026 |
| 91940 | NULIK | Sumner County, KS | Oil & Gas Property | Apr 2026 |
| 91941 | NULL | Stephens County, OK | Oil Property | Apr 2026 |
| 91942 | NULL BOBST UNIT | Lycoming County, PA | Gas Property | May 2026 |
| 91943 | NULL EUGENE | Lycoming County, PA | Gas Property | May 2026 |
| 91944 | NULL, A | Ritchie County, WV | Oil & Gas Property | Dec 2021 |
| 91945 | NUMBAT | Brazos County, TX | Oil & Gas Property | May 2026 |
| 91946 | NUMEN LUMEN 775 | Yoakum County, TX | Oil & Gas Property | May 2026 |
| 91947 | NUMERO SEIS | Jim Hogg County, TX | Oil & Gas Property | May 2026 |
| 91948 | NUNEMAKER | Kingman County, KS | Oil & Gas Property | Apr 2026 |
| 91949 | NUNEMAKER 1 | Kingfisher County, OK | Oil & Gas Property | Mar 2016 |
| 91950 | NUNER | Pontotoc County, OK | Oil Property | Apr 2026 |
| 91951 | NUNLEE FEDERAL | Eddy County, NM | Oil Property | Nov 2025 |
| 91952 | NUNLEE FEDERAL | Eddy County, NM | Oil Property | Nov 2025 |
| 91953 | NUNLEY | Stephens County, OK | Oil & Gas Property | Nov 2022 |
| 91954 | NUNLEY | Brazos County, TX | Oil & Gas Property | May 2026 |
| 91955 | NUNLEY | Moore County, TX | Gas Property | Apr 2026 |
| 91956 | NUNLEY ELMA | Stephens County, TX | Oil & Gas Property | Dec 2017 |
| 91957 | NUNLEY, WIL | Kanawha County, WV | Oil & Gas Property | Dec 2021 |
| 91958 | NUNN | McClain County, OK | Oil & Gas Property | Apr 2026 |
| 91959 | NUNN | Finney County, KS | Oil & Gas Property | Apr 2026 |
| 91960 | NUNN | McClain County, OK | Oil & Gas Property | Apr 2026 |
| 91961 | NUNN | Hughes County, OK | Gas Property | Jan 2023 |
| 91962 | NUNN | Reagan County, TX | Oil & Gas Property | May 2026 |
| 91963 | NUNN ELIZABETH | Reagan County, TX | Oil & Gas Property | Sep 2024 |
| 91964 | NUNN-GANZE 18 | Reagan County, TX | Oil & Gas Property | May 2026 |
| 91965 | NUNNALLEE | Nowata County, OK | Oil & Gas Property | Jan 2021 |
| 91966 | NUNNALLY | Eastland County, TX | Oil & Gas Property | May 2026 |
| 91967 | NUNNELEY | Montgomery County, KS | Oil Property | Apr 2026 |
| 91968 | NUNNELEY | Montgomery County, KS | Oil Property | Apr 2026 |
| 91969 | NUNNELLY | Caddo Parish, LA | Oil Property | Dec 2024 |
| 91970 | NUNNELLY, JAMES | Henderson County, KY | Oil Property | Dec 2007 |
| 91971 | NUNNELY | Montague County, TX | Oil & Gas Property | May 2026 |
| 91972 | NUNNENKAMP, H | Boone County, WV | Gas Property | Dec 2021 |
| 91973 | NUNNERY 12-1H | Amite County, MS | Oil & Gas Property | May 2026 |
| 91974 | NUNNERY, J | Floyd County, KY | Oil & Gas Property | Dec 2024 |
| 91975 | NURINE | Bowman County, ND | Oil & Gas Property | May 2026 |
| 91976 | NURSE | Barber County, KS | Oil & Gas Property | Apr 2026 |
| 91977 | NUSBAUM | Hansford County, TX | Oil & Gas Property | Apr 2018 |
| 91978 | NUSBAUM | Hansford County, TX | Oil & Gas Property | May 2026 |
| 91979 | NUSBAUM | Gladwin County, MI | Oil Property | Jun 2026 |
| 91980 | NUSS | Logan County, KS | Oil Property | Apr 2026 |
| 91981 | NUSS | Logan County, KS | Oil Property | Apr 2026 |
| 91982 | NUSS | Kearny County, KS | Gas Property | Apr 2026 |
| 91983 | NUSS | Barton County, KS | Oil Property | Apr 2026 |
| 91984 | NUSS | Ellis County, KS | Oil Property | Mar 2016 |
| 91985 | NUSS | Barton County, KS | Oil Property | Apr 1986 |
| 91986 | NUSS | Hodgeman County, KS | Oil Property | Apr 2026 |
| 91987 | NUSS A | Ness County, KS | Oil Property | Jul 2025 |
| 91988 | NUSS GAS UNIT | Kearny County, KS | Gas Property | Apr 2026 |
| 91989 | NUSSBAUM | Wayne County, OH | Oil & Gas Property | Dec 2025 |
| 91990 | NUSSBAUM | Limestone County, TX | Oil & Gas Property | Apr 2026 |
| 91991 | NUSSER | Haskell County, KS | Oil Property | Jun 2003 |
| 91992 | NUSSER | Grant County, KS | Gas Property | Apr 2026 |
| 91993 | NUSSER | Morton County, KS | Gas Property | Mar 2026 |
| 91994 | NUSSER | Barber County, KS | Oil & Gas Property | Apr 2026 |
| 91995 | NUSSER GAS UNIT | Finney County, KS | Gas Property | Apr 2026 |
| 91996 | NUSZ | Woodson County, KS | Oil Property | Apr 2026 |
| 91997 | NUSZ 1 | Blaine County, OK | Oil & Gas Property | Apr 2026 |
| 91998 | NUT CREEK CS STATE | Campbell County, WY | Gas Property | Apr 2026 |
| 91999 | NUTCRACKER | Converse County, WY | Oil & Gas Property | Apr 2026 |
| 92000 | NUTE | Winkler County, TX | Oil & Gas Property | Apr 2026 |