| 1 | A ROHLFF | Niobrara County, WY | Oil & Gas Property | Jul 2013 |
| 2 | ALCIBIADES 1 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 3 | APEX | Niobrara County, WY | Oil & Gas Property | Nov 2024 |
| 4 | ARGO | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 5 | AZTEC FED | Niobrara County, WY | Oil & Gas Property | Sep 2016 |
| 6 | BELL | Niobrara County, WY | Oil & Gas Property | Sep 2023 |
| 7 | BELL EDGEMONT 1 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 8 | BOGGY CREEK | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 9 | BUCK | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 10 | BUFFALO FED 28-33H | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 11 | BULLSEYE | Niobrara County, WY | Oil Property | Jun 2026 |
| 12 | BUTTE | Niobrara County, WY | Oil Property | Jun 2026 |
| 13 | C J THOMPSON | Niobrara County, WY | Oil & Gas Property | Sep 2021 |
| 14 | CARRIE PUT | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 15 | CASSIDY 9 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 16 | CHARLES | Niobrara County, WY | Oil & Gas Property | Mar 2019 |
| 17 | CHESTER 8 | Niobrara County, WY | Oil & Gas Property | Sep 2023 |
| 18 | CHEYENNE RIVER | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 19 | CHINOOK | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 20 | CHRISTENSEN | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 21 | CONVERSE SHEEP | Niobrara County, WY | Oil & Gas Property | Feb 2025 |
| 22 | COUGHLAN | Niobrara County, WY | Oil Property | Aug 1997 |
| 23 | DIELMAN | Niobrara County, WY | Oil & Gas Property | Apr 1986 |
| 24 | DIXON | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 25 | DOWNING | Niobrara County, WY | Oil Property | Sep 2024 |
| 26 | E LAMB | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 27 | E LANCE CREEK UNIT | Niobrara County, WY | Oil & Gas Property | Nov 2024 |
| 28 | ELLIOTT | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 29 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Apr 2020 |
| 30 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Dec 2022 |
| 31 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 32 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Jan 2020 |
| 33 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 34 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Jun 2019 |
| 35 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Jan 2016 |
| 36 | FEDERAL | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 37 | FEDERAL 1 | Niobrara County, WY | Oil Property | Sep 2022 |
| 38 | FIDDLEBACK | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 39 | FINLEY STATE | Niobrara County, WY | Oil & Gas Property | Sep 2022 |
| 40 | FLAT TOP HILL 3467-27 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 41 | FLAT TOP HILL 3567-11-23-2 NXH | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 42 | FORD | Niobrara County, WY | Oil & Gas Property | Feb 1991 |
| 43 | GASKILL | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 44 | GASKILL | Niobrara County, WY | Oil & Gas Property | Mar 2026 |
| 45 | GREASEWOOD | Niobrara County, WY | Oil Property | Oct 2023 |
| 46 | HANSON | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 47 | JASPER | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 48 | JOHNSON | Niobrara County, WY | Oil & Gas Property | Jul 1987 |
| 49 | JOHNSON | Niobrara County, WY | Oil & Gas Property | Jun 2006 |
| 50 | JOSS 34-67-35-4H | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 51 | KTU 1 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 52 | KTU 2 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 53 | KTU 3 | Niobrara County, WY | Oil & Gas Property | May 2026 |
| 54 | KTU 3 | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 55 | LAMB | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 56 | LANCE CR | Niobrara County, WY | Oil Property | Jul 1992 |
| 57 | LANCE CREEK | Niobrara County, WY | Oil & Gas Property | May 2005 |
| 58 | LEO OPC | Niobrara County, WY | Oil & Gas Property | Sep 2011 |
| 59 | LIGHTNING CREEK UNIT | Niobrara County, WY | Oil & Gas Property | Apr 2026 |
| 60 | LONE CROW UNIT | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 61 | MENG | Niobrara County, WY | Oil Property | Oct 2009 |
| 62 | MILL TRUST | Niobrara County, WY | Oil & Gas Property | Jun 2017 |
| 63 | MULE | Niobrara County, WY | Oil Property | Sep 2021 |
| 64 | MULE STATELINE | Niobrara County, WY | Oil Property | Jun 2026 |
| 65 | N BUCK CRK | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 66 | NATHAN NOVICK | Niobrara County, WY | Oil & Gas Property | Apr 2021 |
| 67 | NORTH ANT HILLS | Niobrara County, WY | Oil Property | Mar 2026 |
| 68 | O ROHLFF | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 69 | PARROT FEDERAL 32 | Niobrara County, WY | Oil Property | Jul 2026 |
| 70 | PFISTER | Niobrara County, WY | Oil Property | Jul 2026 |
| 71 | PFISTER | Niobrara County, WY | Oil Property | Jun 2026 |
| 72 | PRAIRIE FALCON | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 73 | REED | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 74 | REED STATE | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 75 | REED-FED | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 76 | RODEO | Niobrara County, WY | Oil & Gas Property | Aug 2022 |
| 77 | ROTH | Niobrara County, WY | Oil Property | Sep 2021 |
| 78 | SAM JOSS | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 79 | SCHAEFER | Niobrara County, WY | Oil Property | Jun 2024 |
| 80 | SCHURICHT | Niobrara County, WY | Oil & Gas Property | Jun 2026 |
| 81 | SEEDY DRAW EAST FEDERAL 1H | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 82 | SEEDY DRAW NORTH-FED 1H | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 83 | SH-TERRA | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 84 | SIOUX STATELINE | Niobrara County, WY | Oil Property | Jan 2007 |
| 85 | SMATHERS 34-67-14N | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 86 | SNYDER CREEK FED 22-27H | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 87 | STATE | Niobrara County, WY | Oil Property | Jul 2026 |
| 88 | STATE | Niobrara County, WY | Oil & Gas Property | Apr 1986 |
| 89 | STATE | Niobrara County, WY | Oil Property | Apr 2023 |
| 90 | STATE | Niobrara County, WY | Oil & Gas Property | Jun 2016 |
| 91 | STATE | Niobrara County, WY | Oil Property | Jun 2026 |
| 92 | THOMPSON | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 93 | TRESNER | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 94 | WASSERBURGER | Niobrara County, WY | Oil & Gas Property | Jan 2020 |
| 95 | WELL | Niobrara County, WY | Oil & Gas Property | Sep 2021 |
| 96 | ZERBST | Niobrara County, WY | Oil & Gas Property | Jul 2026 |
| 97 | ZERBST | Niobrara County, WY | Oil & Gas Property | Apr 2026 |
| 98 | ZERBST | Niobrara County, WY | Oil & Gas Property | Sep 2018 |
| 99 | ZERBST FE | Niobrara County, WY | Oil & Gas Property | Jul 2026 |