Crook County, Wyoming
Crook County has 746 active wells under 47 operators, of 4,137 drilled.
Its wells reported 752,300 bbl of oil, 77,819 Mcf of gas, and 16,762,575 bbl of produced water in the twelve months through August 2026; oil is down 7% on the twelve months before.
3 APDs were approved and 4 wells spudded here in the last twelve months; 12 approved wells have no spud date yet.
5,750,740 bbl of water were injected in the twelve months through August 2026, across 148 active injection and disposal wells.
Signal Hill Operating LLC operates the wells behind 23% of that oil.
- 746
- active wells · 47 operators
- 752,300
- bbl oil, 12 months through Aug 2026 · −7%
- 77,819
- Mcf gas, same 12 months · +5%
- 3
- APDs approved in 12 months · 4 wells spudded
All 4,484 wells on file in Crook 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 752,300 · prior 12 811,660(-7%)
Crook County: Oil by month.
Wells spudded, by year
HorizontalVertical and directional
Operators by oil
BBL · 12 MONTHS THROUGH AUG 2026
Signal Hill Operating LLC141 active wells
173,999 bbl
OILDIGGER RESOURCES FUND l LLLP9 active wells
72,229 bbl
Citation Oil & Gas Corporation14 active wells
66,559 bbl
Cardinal Wyoming LLC24 active wells
65,727 bbl
Adams H D LLC11 active wells
56,492 bbl
Six Bar Oil LLC22 active wells
48,910 bbl
True Oil LLC17 active wells
38,615 bbl
Emre Oil LLC8 active wells
34,134 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 |
|---|---|---|---|---|---|
| Signal Hill Operating LLC wells | 141 | 0 | 173,999 | 10,991 | 271,117 |
| OILDIGGER RESOURCES FUND l LLLP wells | 9 | 0 | 72,229 | 43,634 | 21,616 |
| Citation Oil & Gas Corporation wells | 14 | 0 | 66,559 | 0 | 2.0M |
| Cardinal Wyoming LLC wells | 24 | 2 | 65,727 | 0 | 1.4M |
| Adams H D LLC wells | 11 | 0 | 56,492 | 0 | 1.5M |
| Six Bar Oil LLC wells | 22 | 0 | 48,910 | 1,212 | 2.6M |
| True Oil LLC wells | 17 | 0 | 38,615 | 6,350 | 1.2M |
| Emre Oil LLC wells | 8 | 0 | 34,134 | 0 | 322,693 |
| Red Rock Resources Corporation wells | 9 | 0 | 19,618 | 0 | 780,536 |
| Joemar Wyoming Operating LLC wells | 11 | 0 | 18,043 | 0 | 590,156 |
| Barn Owls LLC wells | 23 | 0 | 17,461 | 0 | 1.1M |
| Kaiser Francis Oil Co wells | 1 | 0 | 14,520 | 15,446 | 5,189 |
| PML Operating LLC wells | 2 | 0 | 12,885 | 0 | 371,367 |
| Ranch Oil Company wells | 6 | 0 | 10,503 | 0 | 1.6M |
| Red Tiger Oil & Gas LLC wells | 8 | 0 | 10,190 | 0 | 115,885 |
| Poc-I LLC wells | 7 | 0 | 10,120 | 0 | 546,562 |
| Maximus Operating Ltd wells | 2 | 0 | 9,290 | 0 | 11,064 |
| Black Thunder Oil LLC wells | 242 | 0 | 8,949 | 0 | 505,700 |
| M & K Oil Company LLC wells | 25 | 0 | 8,645 | 186 | 17,512 |
| Ellbogen John P Ltd wells | 8 | 0 | 8,140 | 0 | 726,636 |
| Field | Active wells | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| Thompson Creek | 141 | 173,999 | 10,991 |
| Kara | 13 | 86,897 | 59,266 |
| Prong Creek | 15 | 86,717 | 0 |
| Moorcroft West | 13 | 32,900 | 0 |
| WC | 15 | 28,998 | 0 |
| Semlek | 5 | 24,599 | 0 |
| Guthrey | 7 | 23,552 | 0 |
| Donkey Creek | 11 | 20,747 | 618 |
| Oshoto | 5 | 19,791 | 0 |
| Kiehl | 9 | 19,618 | 0 |
| Semlek West | 4 | 19,373 | 0 |
| Lad | 11 | 18,043 | 0 |
| Heath | 5 | 17,528 | 0 |
| Donkey Creek North | 7 | 17,093 | 0 |
| Little Missouri | 8 | 16,847 | 0 |
Latest APDs
All of them →| Approved | Well | Operator | Proposed formation | Target depth | Now |
|---|---|---|---|---|---|
| Oct 20, 2026 | Jessie Federal No. 149-011-23415 | Azalea Oil Company LLC | Minnelusa-B | 6,400 ft | Not spudded |
| May 19, 2026 | Semlek Unit 23-27-526849-011-23514 | Cardinal Wyoming LLC | Minnelusa-B | 7,283 ft | Not spudded |
| May 18, 2026 | Semlek Unit 14-27-526849-011-23513 | Cardinal Wyoming LLC | Minnelusa-B | 7,252 ft | SpuddedSep 9, 2026 |
| Oct 16, 2025 | Schuricht No. 549-011-21851 | Emre Oil LLC | Lakota | 5,036 ft | SpuddedSep 8, 1985 |
| Oct 14, 2025 | Alice Fee No. 249-011-23512 | Emre Oil LLC | Butler | 5,000 ft | SpuddedOct 26, 2025 |
| Jul 10, 2025 | State 16-49-67 1THHZ49-011-23511 | OILDIGGER RESOURCES FUND l LLLP | Turner | 3,210 ft | Not spudded |
| May 20, 2025 | Tcu 18249-011-23503 | Signal Hill Operating LLC | Muddy | 1,800 ft | SpuddedJul 1, 2025 |
| May 20, 2025 | Tcu 18349-011-23504 | Signal Hill Operating LLC | Muddy | 1,800 ft | SpuddedJul 8, 2026 |
| May 20, 2025 | Tcu 19349-011-23505 | Signal Hill Operating LLC | Muddy | 1,900 ft | SpuddedJul 30, 2025 |
| May 20, 2025 | Tcu 19449-011-23506 | Signal Hill Operating LLC | Muddy | 1,900 ft | SpuddedJul 16, 2026 |
Largest wells
| Well | Operator | County | Field | Oil, 12 mo | Gas, 12 mo | Water, 12 mo |
|---|---|---|---|---|---|---|
| Kimsey 15-49-67- 1TH 49-011-23494 | OILDIGGER RESOURCES FUND l LLLP | Crook | Kara | 26,743 | 15,999 | 15,759 |
| Warbonnet 20-49-67 1TH 49-011-23424 | OILDIGGER RESOURCES FUND l LLLP | Crook | Kara | 20,565 | 10,523 | 594 |
| Munoz Federal 28-6 49-011-05913 | Citation Oil & Gas Corporation | Crook | Semlek West | 19,373 | 0 | 838,173 |
| Semlek Unit W1W 1 49-011-23367 | Cardinal Wyoming LLC | Crook | Semlek | 18,314 | 0 | 107,321 |
| Wood 44F-1 4 49-011-21516 | Adams H D LLC | Crook | Prong Creek | 16,768 | 0 | 283,966 |
| Burch 1112 10-49-68 1TH 49-011-23462 | Kaiser Francis Oil Co | Crook | Kara | 14,520 | 15,446 | 5,189 |
| Goldilocks #2 49-011-23449 | Emre Oil LLC | Crook | Prong Creek | 14,159 | 0 | 35,915 |
| Meyer C 12 49-011-22523 | Citation Oil & Gas Corporation | Crook | Moorcroft West | 13,998 | 0 | 169,520 |
| Georgia Wood 1 49-011-05637 | Adams H D LLC | Crook | Prong Creek | 13,661 | 0 | 80,011 |
| Warbonnet 17-49-67 1TH 49-011-23442 | OILDIGGER RESOURCES FUND l LLLP | Crook | Kara | 13,616 | 4,383 | 3,707 |
Disposal and injection wells
BBL OF WATER INJECTED · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Field | Injected, 12 mo |
|---|---|---|---|---|
| Fowler 22-8 49-011-23136 | Six Bar Oil LLC | Crook | WC | 1,644,230 |
| Munoz 28-8 49-011-20582 | Citation Oil & Gas Corporation | Crook | Semlek West | 909,358 |
| Langsdorf 2 49-011-23041 | Adams H D LLC | Crook | Prong Creek | 745,300 |
| State 34-36 7 49-011-21675 | Adams H D LLC | Crook | Prong Creek | 705,831 |
| Rodriguez 11-22 49-011-21531 | Poc-I LLC | Crook | Oshoto | 463,082 |
| Blatt Fee 2 49-011-21235 | Ellbogen John P Ltd | Crook | Berger Hill | 356,027 |
| Barb 1 49-011-21543 | Black Thunder Oil LLC | Crook | Wind Creek | 227,268 |
| Wm 2 49-011-20813 | Six Bar Oil LLC | Crook | Heath | 187,291 |
| SHC Disposal 35-13 49-011-23412 | Signal Hill Operating LLC | Crook | Thompson Creek | 91,196 |
| Signal Hill 11 49-011-22349 | Signal Hill Operating LLC | Crook | Thompson Creek | 90,217 |
Questions about Crook County
How many drilling permits were issued in Crook County in the last 12 months?
3 APDs were approved in Crook County in the last 12 months, down 70% from 10 in the 12 months before. 0% were for horizontal wells. The most recent was approved Oct 20, 2026. 4,338 are on file since 1909.
Every Crook County APD →Which operator produces the most oil in Crook County?
Wells operated by Signal Hill Operating LLC in Crook County reported 173,999 barrels of oil in the 12 months through August 2026, 23% of the county's total, followed by OILDIGGER RESOURCES FUND l LLLP (72,229 bbl) and Citation Oil & Gas Corporation (66,559 bbl). It operates 141 active wells here.
Operators in Crook County →How many oil and gas wells are in Crook County?
4,484 wells are on file in Crook County, including 746 active, 3,117 plugged, and 12 permitted and not yet drilled. 73 are horizontal. The active wells are under 47 operators.
Every well in Crook County →How much oil and gas does Crook County produce?
Wells in Crook County reported 752,300 barrels of oil and 77,819 Mcf of gas on form 2 in the 12 months through August 2026; oil is down 7% from 811,660 in the 12 months before.
Production by month in Crook County →How much water is injected in Crook County?
5.8 million barrels of water were injected in Crook County in the 12 months through August 2026, up 10% from 5.2 million in the 12 months before, across 148 active injection and disposal wells.
Injection by month in Crook County →What are the largest oil fields in Crook County?
Counting oil reported in the 12 months through August 2026, the largest is Thompson Creek, with 173,999 barrels. Second is Kara, with 86,897 barrels. Third is Prong Creek, with 86,717 barrels.
Every field in Crook 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/crook, documented in the API reference.