Niobrara County, Wyoming
Niobrara County has 302 active wells under 27 operators, of 2,260 drilled.
Its wells reported 1,500,717 bbl of oil, 2,566,189 Mcf of gas, and 7,652,716 bbl of produced water in the twelve months through August 2026; oil is up 5% on the twelve months before.
24 APDs were approved and 12 wells spudded here in the last twelve months; 13 approved wells have no spud date yet.
1,584,095 bbl of water were injected in the twelve months through August 2026, across 30 active injection and disposal wells.
1876 Resources LLC operates the wells behind 63% of that oil.
- 302
- active wells · 27 operators
- 1.5M
- bbl oil, 12 months through Aug 2026 · +5%
- 2.6M
- Mcf gas, same 12 months · +18%
- 24
- APDs approved in 12 months · 12 wells spudded
All 3,148 wells on file in Niobrara County, searchable →
Reported production by month
Summed from the county's wells, through Aug 2026. A month still being filed is left out, not drawn low.
12 months through Aug 2026 1,500,717 · prior 12 1,429,326(+5%)
Niobrara County: Oil by month.
Wells spudded, by year
HorizontalVertical and directional
Operators by oil
BBL · 12 MONTHS THROUGH AUG 2026
1876 Resources LLC15 active wells
946,060 bbl
Arena Resources LLC12 active wells
273,271 bbl
M & K Oil Company LLC15 active wells
54,408 bbl
Breitburn Operating L.P.28 active wells
47,790 bbl
JP Oil Wyoming LLC33 active wells
46,927 bbl
Sunshine Valley Petroleum50 active wells
39,221 bbl
Vaquero Big Horn LLC8 active wells
17,998 bbl
Hadley/Jackson Energy LLC23 active wells
16,767 bbl
What the wells each operator runs today reported, whoever operated them at the time.
Operators
| Operator | Active wells | APDs, 12 mo | Oil, 12 mo | Gas, 12 mo | Water, 12 mo |
|---|---|---|---|---|---|
| 1876 Resources LLC wells | 15 | 11 | 946,060 | 1.8M | 224,298 |
| Arena Resources LLC wells | 12 | 9 | 273,271 | 312,545 | 161,174 |
| M & K Oil Company LLC wells | 15 | 0 | 54,408 | 176,591 | 26,678 |
| Breitburn Operating L.P. wells | 28 | 0 | 47,790 | 0 | 187,756 |
| JP Oil Wyoming LLC wells | 33 | 0 | 46,927 | 117,417 | 5.0M |
| Sunshine Valley Petroleum wells | 50 | 0 | 39,221 | 3,978 | 113,326 |
| Vaquero Big Horn LLC wells | 8 | 0 | 17,998 | 0 | 951,897 |
| Hadley/Jackson Energy LLC wells | 23 | 1 | 16,767 | 0 | 701,965 |
| Finley Resources Inc wells | 29 | 0 | 15,280 | 0 | 554 |
| Century Oil and Gas LLC wells | 10 | 0 | 12,870 | 121,563 | 8,704 |
| Joemar Wyoming Operating LLC wells | 7 | 0 | 12,414 | 0 | 82,142 |
| Chipcore LLC wells | 11 | 0 | 7,158 | 2,176 | 110,780 |
| Seedy Draw LLC wells | 5 | 0 | 2,315 | 0 | 55,130 |
| Ant Hills Production wells | 2 | 0 | 2,228 | 0 | 28,700 |
| Sooner Operating Co Inc wells | 2 | 0 | 1,981 | 0 | 0 |
| Castle Rock Oil LLC wells | 1 | 0 | 1,382 | 0 | 0 |
| Krejci Harry L wells | 6 | 0 | 1,323 | 245 | 0 |
| Bullock A O wells | 14 | 0 | 898 | 0 | 0 |
| Murphy Sheldon L & Loretta wells | 0 | 0 | 357 | 0 | 131 |
| Pubco Development Inc wells | 0 | 0 | 42 | 10 | 0 |
| Field | Active wells | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| WC | 41 | 1.2M | 2.1M |
| Greasewood | 34 | 56,079 | 0 |
| Finn-Shurley | 11 | 49,961 | 166,912 |
| Lance Creek | 38 | 31,308 | 76,208 |
| Seedy Draw | 14 | 20,944 | 6,165 |
| Ant Hills North | 10 | 17,998 | 0 |
| Red Bird | 5 | 15,855 | 0 |
| Mule Creek | 17 | 15,719 | 0 |
| Buck Creek | 11 | 15,646 | 41,209 |
| Kaye | 29 | 15,280 | 0 |
| Snyder Creek | 5 | 11,555 | 74,599 |
| Boggy Creek | 12 | 9,166 | 8,991 |
| Brooks Draw | 11 | 6,086 | 3,978 |
| Lance Creek East | 3 | 4,125 | 0 |
| Leimser | 2 | 2,228 | 0 |
Latest APDs
All of them →| Approved | Well | Operator | Proposed formation | Target depth | Now |
|---|---|---|---|---|---|
| Oct 14, 2026 | Finn 2SHHZ49-027-27714 | Arena Resources LLC | Turner | 4,862 ft | SpuddedNov 2, 2026 |
| Oct 14, 2026 | Finn 1SHHZ49-027-27717 | Arena Resources LLC | Turner | 4,862 ft | SpuddedNov 2, 2026 |
| Sep 23, 2026 | Ollie Pot 1NHHZ49-027-27713 | Arena Resources LLC | Turner | 4,862 ft | SpuddedNov 2, 2026 |
| Sep 23, 2026 | Ollie Pot 2NHHZ49-027-27715 | Arena Resources LLC | Turner | 4,862 ft | SpuddedNov 2, 2026 |
| Sep 23, 2026 | Ollie Pot 3NHHZ49-027-27716 | Arena Resources LLC | Turner | 4,862 ft | SpuddedNov 2, 2026 |
| Sep 3, 2026 | Glendive 21 NXHHZ49-027-27698 | 1876 Resources LLC | Niobrara | 8,463 ft | Not spudded |
| Sep 3, 2026 | Glendive 22 NXHHZ49-027-27699 | 1876 Resources LLC | Niobrara | 8,463 ft | Not spudded |
| Sep 3, 2026 | Glendive 23 NXHHZ49-027-27700 | 1876 Resources LLC | Niobrara | 8,453 ft | Not spudded |
| Sep 3, 2026 | Glendive 24 NXHHZ49-027-27701 | 1876 Resources LLC | Niobrara | 8,449 ft | Not spudded |
| Sep 3, 2026 | Glendive 31 TuxhHZ49-027-27702 | 1876 Resources LLC | Turner | 8,854 ft | Active Permit |
Largest wells
| Well | Operator | County | Field | Oil, 12 mo | Gas, 12 mo | Water, 12 mo |
|---|---|---|---|---|---|---|
| Chinook 21NXH 49-027-27656 | 1876 Resources LLC | Niobrara | WC | 159,642 | 266,422 | 38,240 |
| Chinook 24NXH 49-027-27659 | 1876 Resources LLC | Niobrara | WC | 147,493 | 238,337 | 37,323 |
| Chinook 22NXH 49-027-27657 | 1876 Resources LLC | Niobrara | WC | 147,065 | 274,103 | 35,916 |
| Chinook 23NXH 49-027-27658 | 1876 Resources LLC | Niobrara | WC | 125,703 | 204,735 | 30,112 |
| Boggy Creek 23-26-40-64H 49-027-27652 | Arena Resources LLC | Niobrara | WC | 72,824 | 106,280 | 18,787 |
| Flat Top Hill 3467-27-15-2NXH 49-027-27646 | 1876 Resources LLC | Niobrara | WC | 71,615 | 112,265 | 17,826 |
| Flat Top Hill 3467-27-15-1NXH 49-027-27647 | 1876 Resources LLC | Niobrara | WC | 68,864 | 107,629 | 15,863 |
| Buffalo Fed 28-33H 49-027-27648 | Arena Resources LLC | Niobrara | WC | 54,201 | 57,119 | 18,924 |
| Buck 3SH 49-027-27682 | Arena Resources LLC | Niobrara | WC | 47,704 | 21,937 | 53,472 |
| Snyder Creek Fed 22-27H 49-027-27650 | Arena Resources LLC | Niobrara | WC | 46,806 | 58,640 | 22,339 |
Disposal and injection wells
BBL OF WATER INJECTED · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Field | Injected, 12 mo |
|---|---|---|---|---|
| N Buck CRK Fed 11-17A 49-027-20343 | JP Oil Wyoming LLC | Niobrara | Buck Creek | 1,419,233 |
| Aquarius 34-9 49-027-26727 | Chipcore LLC | Niobrara | WC | 49,869 |
| Tetrad Federal 21-30 49-027-26903 | Sunshine Valley Petroleum | Niobrara | WC | 37,859 |
| Hanson 43-12 49-027-20768 | Arena Resources LLC | Niobrara | Seedy Draw | 32,356 |
| Charles Fed 15-33 1 49-027-20965 | Chipcore LLC | Niobrara | Charles | 26,876 |
| Tupelo Fee 31-1 SWD 49-027-27604 | Chipcore LLC | Niobrara | WC | 17,902 |
Questions about Niobrara County
How many drilling permits were issued in Niobrara County in the last 12 months?
24 APDs were approved in Niobrara County in the last 12 months, up 50% from 16 in the 12 months before. 92% were for horizontal wells. The most recent was approved Oct 14, 2026. 2,464 are on file since 1913.
Every Niobrara County APD →Which operator produces the most oil in Niobrara County?
Wells operated by 1876 Resources LLC in Niobrara County reported 946,060 barrels of oil in the 12 months through August 2026, 63% of the county's total, followed by Arena Resources LLC (273,271 bbl) and M & K Oil Company LLC (54,408 bbl). It operates 15 active wells here.
Operators in Niobrara County →How many oil and gas wells are in Niobrara County?
3,148 wells are on file in Niobrara County, including 302 active, 1,739 plugged, and 13 permitted and not yet drilled. 726 are horizontal. The active wells are under 27 operators.
Every well in Niobrara County →How much oil and gas does Niobrara County produce?
Wells in Niobrara County reported 1.5 million barrels of oil and 2.6 million Mcf of gas on form 2 in the 12 months through August 2026; oil is up 5% from 1.4 million in the 12 months before.
Production by month in Niobrara County →How much water is injected in Niobrara County?
1.6 million barrels of water were injected in Niobrara County in the 12 months through August 2026, down 8% from 1.7 million in the 12 months before, across 30 active injection and disposal wells.
Injection by month in Niobrara County →What are the largest oil fields in Niobrara County?
Counting oil reported in the 12 months through August 2026, the largest is WC, with 1.2 million barrels. Second is Greasewood, with 56,079 barrels. Third is Finn-Shurley, with 49,961 barrels.
Every field in Niobrara County →About this data
Wyoming Oil and Gas Conservation Commission. A well's county is the county code in its API number. Volumes are what operators filed on form 2 for the county's wells, by month, through Aug 2026 for production and Aug 2026 for injection. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/counties/wy/niobrara, documented in the API reference.