WYOMING · WELLS · WASHAKIE COUNTY · API 49-043-20336
Hidden Dome 4-5
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Breitburn Operating L.P.
- Permitted by
- Marathon Oil Company
- County
- Washakie
- Field
- Hidden Dome
A vertical oil well in Washakie County, Wyoming, operated by Breitburn Operating L.P. WOGCC status: producing oil well.
Spudded June 29, 1977.
Completed in 4 fields: Hidden Dome, Hidden Dome, Hidden Dome, Hidden Dome.
It has reported 537,575 bbl of oil, 0 Mcf of gas, and 8,132,780 bbl of water since the record begins in January 1978; in the twelve months through August 2026, 3,480 bbl, 0 Mcf, and 23,773 bbl.
- 3,480
- bbl oil, 12 months through Aug 2026
- 0
- Mcf gas, same 12 months
- 23,773
- bbl produced water, same 12 months
- 537,575
- bbl oil since Jan 1978 · 0 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- May 9, 1977
- Operator
- Marathon Oil Company
- Proposed formation
- Tensleep
- Target depth
- 4,940 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 3,480 · prior 12 3,215(+8%)
Hidden Dome 4-5: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| Hidden DomeAmsden-Darwin-Tensleep | Active | — | — | Jun 2003 to Aug 2026 | 148,076 | 0 | 4,683,105 |
| Hidden DomeTensleep | — | — | Aug 19, 1977 | by Jan 1978 to Nov 2003 | 215,263 | 0 | 3,092,893 |
| Hidden DomeDarwin | — | — | — | Jan 1994 to May 2003 | 174,236 | 0 | 356,782 |
| Hidden DomeAmsden | — | — | — | — | 0 | 0 | 0 |
Formation tops
Download CSV →17 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| FRONTIER | 1,078 ft |
| PEAY | 1,376 ft |
| MOWRY | 1,578 ft |
| MUDDY | 2,160 ft |
| DAKOTA | 2,477 ft |
| FUSON | 2,528 ft |
| LAKOTA | 2,570 ft |
| MORRISON | 2,600 ft |
| SUNDANCE | 2,686 ft |
| GYPSUM SPRINGS | 3,122 ft |
| CHUGWATER | 3,321 ft |
| DINWOODY | 4,144 ft |
| EMBAR | 4,206 ft |
| TENSLEEP | 4,460 ft |
| AMSDEN | 4,696 ft |
| DARWIN | 4,770 ft |
| MADISON | 4,856 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Breitburn Operating L.P. | Jan 1, 2015 | today |
| Phoenix Production Company | Jun 1, 2003 | Jan 1, 2015 |
| Nautilus Resources LLC | May 1, 2003 | Jun 1, 2003 |
| Marathon Oil Company | Jan 1, 2000 | May 1, 2003 |
Well record
- API number
- 49-043-20336
- Location
- NW SE 31-48N-90W · 2380 FSL, 1500 FEL
- Coordinates
- 44.08796, -107.69154 ↗
- Elevation
- 4,458 ft
- Total depth
- 4,940 ft
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved May 9, 1977
- Proposed formation
- Tensleep
- Target depth
- 4,940 ft
- Spudded
- Jun 29, 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/4904320336, documented in the API reference.