WYOMING · WELLS · BIG HORN COUNTY · API 49-003-20774
Spence Dome B-019946 59
ActiveVertical oil wellWOGCC status: Producing Gas Well
- Operator of record
- Endeavor Energy LLC
- Permitted by
- Koch Production Company
- County
- Big Horn
- Field
- Spence Dome
A vertical oil well in Big Horn County, Wyoming, operated by Endeavor Energy LLC. WOGCC status: producing gas well.
Spudded March 6, 1986.
Completed in 2 fields: Spence Dome, Spence Dome.
It has reported 10,695 bbl of oil, 0 Mcf of gas, and 1,225,937 bbl of water since July 1986; its last reported production was March 2020.
- 0
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 10,695
- bbl oil since Jul 1986 · 0 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Oct 29, 1985
- Operator
- Koch Production Company
- Proposed formation
- Madison
- Target depth
- 595 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
Spence Dome B-019946 59: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| Spence DomeMadison | — | 450 to 539 MD | Jul 10, 1986 | Jul 1986 to Mar 2020 | 10,695 | 0 | 1,225,937 |
| Spence DomeAmsden-Madison | — | — | Jul 10, 1986 | — | — | — | — |
Formation tops
Download CSV →4 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| TENSLEEP | 218 ft |
| AMSDEN | 341 ft |
| DARWIN | 418 ft |
| MADISON | 432 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Endeavor Energy LLC | Aug 15, 2000 | today |
| Koch Production Company | Jan 1, 2000 | Aug 15, 2000 |
Well record
- API number
- 49-003-20774
- Location
- NW SE 5-54N-94W · 1330 FSL, 1330 FEL
- Coordinates
- 44.68318, -108.19258 ↗
- Elevation
- 3,892 ft GR
- Total depth
- 595 ft
- Perforations
- 450 to 539 ft
- Land
- Federal
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved Oct 29, 1985
- Proposed formation
- Madison
- Target depth
- 595 ft
- Spudded
- Mar 6, 1986
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/4900320774, documented in the API reference.