WYOMING · WELLS · CROOK COUNTY · API 49-011-20272
Larsen Fed 7
Temporarily abandonedVertical oil well
- Operator of record
- Black Thunder Oil LLC
- Permitted by
- L & J Operating Inc
- County
- Crook
- Field
- Thornton
A vertical oil well in Crook County, Wyoming, operated by Black Thunder Oil LLC. WOGCC status: temporarily abandoned.
Spudded July 7, 1972.
Completed in one field: Thornton.
It has reported 134 bbl of oil, 0 Mcf of gas, and 0 bbl of water since March 2016; in the twelve months through August 2026, 20 bbl, 0 Mcf, and 0 bbl.
- 20
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 134
- bbl oil since Mar 2016 · 0 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Jul 6, 1972
- Operator
- L & J Operating Inc
- Proposed formation
- Wall Creek
- Target depth
- 612 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 20 · prior 12 11(+82%)
Larsen Fed 7: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| ThorntonWall Creek | Active | — | Jul 24, 1972 | Mar 2016 to May 2026 | 134 | 0 | 0 |
Formation tops
Download CSV →3 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| CARLILE,MBR (CODY SH) | 0 ft |
| TURNER,SANDY MBR (CARLILE SH) | 464 ft |
| CODY,FM | 530 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 |
| Kings X Oil Company LLC | Jan 1, 2000 | Jan 4, 2016 |
Well record
- API number
- 49-011-20272
- Location
- NE SW 33-49N-66W · 2310 FSL, 990 FEL
- Coordinates
- 44.18501, -104.78387 ↗
- Elevation KB
- 4,283 ft
- Total depth
- 612 ft
- Land
- Federal
- Basin, as WOGCC files it
- Powder River Basin
- APD
- Approved Jul 6, 1972
- Proposed formation
- Wall Creek
- Target depth
- 612 ft
- Spudded
- Jul 7, 1972
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/4901120272, documented in the API reference.