WYOMING · WELLS · WASHAKIE COUNTY · API 49-043-20385
Coseka 12-4
Shut inVertical oil wellWOGCC status: Shut-In
- Operator of record
- Valkyrie Operating LLC
- Permitted by
- Washakie Energies Company
- County
- Washakie
- Field
- Slick Creek
A vertical oil well in Washakie County, Wyoming, operated by Valkyrie Operating LLC. WOGCC status: shut-in.
Spudded October 11, 1978.
Completed in 2 fields: Slick Creek, Slick Creek.
It has reported 200,013 bbl of oil, 27,450 Mcf of gas, and 0 bbl of water since March 1979; its last reported production was November 2016.
- 0
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 200,013
- bbl oil since Mar 1979 · 27,450 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Sep 7, 1978
- Operator
- Washakie Energies Company
- Proposed formation
- Phosphoria
- Target depth
- 10,762 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 0 · prior 12 0
Coseka 12-4: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| Slick CreekPhosphoria | — | — | — | Mar 1979 to Nov 2016 | 200,013 | 27,450 | 0 |
| Slick CreekFrontier-3 | — | — | Mar 18, 1979 | — | — | — | — |
Formation tops
Download CSV →16 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| CODY | 4,560 ft |
| SUSSEX | 4,831 ft |
| SHANNON | 5,166 ft |
| FRONTIER | 7,710 ft |
| FRONTIER 2 | 7,838 ft |
| FRONTIER 3 | 7,988 ft |
| FRONTIER 4 | 8,112 ft |
| MOWRY | 8,163 ft |
| MUDDY | 8,652 ft |
| CLOVERLY | 8,880 ft |
| MORRISON | 9,080 ft |
| GYPSUM SPRINGS | 9,512 ft |
| CHUGWATER | 9,676 ft |
| ALCOVA | 9,853 ft |
| DINWOODY | 10,562 ft |
| PHOSPHORIA | 10,606 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Valkyrie Operating LLC | Aug 11, 2023 | today |
| Washakie Energies Company | Jan 1, 2000 | Aug 11, 2023 |
Well record
- API number
- 49-043-20385
- Location
- NE SW 12-46N-92W · 2141 FSL, 1895 FWL
- Coordinates
- 43.97021, -107.84071 ↗
- Elevation
- 4,450 ft
- Elevation KB
- 4,466 ft
- Total depth
- 10,762 ft
- Land
- Federal
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved Sep 7, 1978
- Proposed formation
- Phosphoria
- Target depth
- 10,762 ft
- Spudded
- Oct 11, 1978
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/4904320385, documented in the API reference.