WYOMING · WELLS · CROOK COUNTY · API 49-011-05213
Koch 21-20
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Six Bar Oil LLC
- Permitted by
- True Oil LLC
- County
- Crook
- Field
- Donkey Creek
A vertical oil well in Crook County, Wyoming, operated by Six Bar Oil LLC. WOGCC status: producing oil well.
Spudded December 31, 1960.
Completed in 2 fields: Donkey Creek, Donkey Creek.
It has reported 30,460 bbl of oil, 20,414 Mcf of gas, and 5,463 bbl of water since April 1993; in the twelve months through August 2026, 531 bbl, 0 Mcf, and 0 bbl.
- 531
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 30,460
- bbl oil since Apr 1993 · 20,414 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Dec 19, 1960
- Operator
- True Oil LLC
- Proposed formation
- Dakota
- Target depth
- 6,423 ft
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Reported production
Every month on file for this well on form 2, summed across its fields and the operators that filed it. The newest months can still be amended.
12 months through Aug 2026 531 · prior 12 1,145(-54%)
Koch 21-20: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| Donkey CreekMuddy | Active | — | — | Apr 1993 to Sep 2026 | 30,460 | 20,414 | 5,463 |
| Donkey CreekDakota | — | — | — | — | 0 | 0 | 0 |
Formation tops
Download CSV →2 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| MUDDY,FM | 6,133 ft |
| DAKOTA,FM | 6,372 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Well record
- API number
- 49-011-05213
- Location
- NE NW 20-49N-68W · 220 FNL, 1420 FWL
- Coordinates
- 44.21998, -105.05770 ↗
- Elevation KB
- 4,386 ft
- Total depth
- 6,423 ft
- Basin, as WOGCC files it
- Powder River Basin
- APD
- Approved Dec 19, 1960
- Proposed formation
- Dakota
- Target depth
- 6,423 ft
- Spudded
- Dec 31, 1960
About this data
Wyoming Oil and Gas Conservation Commission (WOGCC), from its public database extracts. Status and type are in WOGCC's own words. Production and injection are what operators filed on form 2, by well and month; twelve-month figures end in Aug 2026, the last month whose filings are in. Locations are from the well's location plat and are approximate. The Commission's production file names each well's current operator on every month, so an operator's figures are those of the wells it operates today. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/wells/4901105213, documented in the API reference.