WYOMING · WELLS · CROOK COUNTY · API 49-011-05357
Hoffine 2
ActiveVertical disposal wellWOGCC status: Active Injector
- Operator of record
- Star Oil Operating Company LLC
- Permitted by
- Costilla Energy Inc
- County
- Crook
- Field
- Robinson Ranch South
A vertical disposal well in Crook County, Wyoming, operated by Star Oil Operating Company LLC. WOGCC status: active injector.
Spudded December 31, 1963.
Completed in one field: Robinson Ranch South.
It has reported 433 bbl of oil, 0 Mcf of gas, and 8,242 bbl of water since May 1982; its last reported production was September 1982.
It has taken 1,111,367 bbl of injected water since March 2003, 1,293 bbl of it in the twelve months through August 2026.
- 0
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 0
- bbl produced water, same 12 months
- 433
- bbl oil since May 1982 · 0 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Dec 30, 1963
- Operator
- Costilla Energy Inc
- Proposed formation
- Lakota
- Target depth
- 6,418 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
Hoffine 2: Oil by month.
Reported injection
1,111,367 bbl of water injected since Mar 2003. Reported through Aug 2026.
12 months through Aug 2026 1,293 · prior 12 5,910(-78%)
Hoffine 2: Injected water by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| Robinson Ranch SouthLakota | — | — | Jan 19, 1964 | May 1982 to Sep 1982 | 433 | 0 | 8,242 |
Formation tops
Download CSV →15 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| PIERRE,SH | 470 ft |
| CARLILE | 3,076 ft |
| MOWRY | 4,422 ft |
| MUDDY,FM | 4,600 ft |
| DAKOTA,FM | 4,846 ft |
| FUSON | 4,898 ft |
| LAKOTA,FM (INYAN KARA GP) | 4,933 ft |
| MORRISON,FM | 4,974 ft |
| HULETT | 5,213 ft |
| SPEARFISH,FM | 5,367 ft |
| GOOSE EGG | 5,933 ft |
| MINNEKAHTA,LS | 6,184 ft |
| OPECHE,FM | 6,215 ft |
| MINNELUSA,FM | 6,261 ft |
| NIOBRARA | 9,284 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Star Oil Operating Company LLC | Mar 1, 2021 | today |
| Pine Ridge Petroleum LLC | Sep 1, 2012 | Mar 1, 2021 |
| Adams Don & Associates | Dec 1, 2001 | Sep 1, 2012 |
| Prima Exploration Inc | Jan 1, 2000 | Dec 1, 2001 |
Well record
- API number
- 49-011-05357
- Location
- NW SE 5-49N-67W · 3000 FNL, 1650 FEL
- Coordinates
- 44.25692, -104.92737 ↗
- Elevation
- 4,387 ft
- Elevation KB
- 4,399 ft
- Total depth
- 6,418 ft
- Basin, as WOGCC files it
- Powder River Basin
- APD
- Approved Dec 30, 1963
- Proposed formation
- Lakota
- Target depth
- 6,418 ft
- Spudded
- Dec 31, 1963
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/4901105357, documented in the API reference.