WYOMING · WELLS · WESTON COUNTY · API 49-045-21007
Thornton B Federal 4
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Black Thunder Oil LLC
- Permitted by
- L & R Drilling Company
- County
- Weston
- Field
- Thornton
A vertical oil well in Weston County, Wyoming, operated by Black Thunder Oil LLC. WOGCC status: producing oil well.
Spudded April 6, 1977.
Completed in 2 fields: Thornton, Thornton.
It has reported 1,702 bbl of oil, 0 Mcf of gas, and 0 bbl of water since January 1984; in the twelve months through August 2026, 63 bbl, 0 Mcf, and 0 bbl.
- 63
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 1,702
- bbl oil since Jan 1984 · 0 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Aug 18, 1976
- Operator
- L & R Drilling Company
- Proposed formation
- KWC-1
- Target depth
- 715 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 63 · prior 12 22(+186%)
Thornton B Federal 4: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
Formation tops
Download CSV →1 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| TURNER,SANDY MBR (CARLILE SH) | 650 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Black Thunder Oil LLC | Jan 4, 2016 | today |
| Winter Ridge Energy LLC | Apr 1, 2008 | Jan 4, 2016 |
| Rock Well Petroleum (US) Inc | Jun 20, 2006 | Apr 1, 2008 |
| Indian Creek Resources Inc | Nov 1, 2004 | Jun 20, 2006 |
| Lagniappe Interest Inc | Jan 1, 2000 | Nov 1, 2004 |
Well record
- API number
- 49-045-21007
- Location
- NW NE 4-48N-66W · 990 FNL, 1650 FEL
- Coordinates
- 44.17596, -104.78561 ↗
- Elevation
- 4,345 ft
- Elevation KB
- 4,351 ft
- Total depth
- 715 ft
- Basin, as WOGCC files it
- Powder River Basin
- APD
- Approved Aug 18, 1976
- Proposed formation
- KWC-1
- Target depth
- 715 ft
- Spudded
- Apr 6, 1977
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/4904521007, documented in the API reference.