WYOMING · WELLS · BIG HORN COUNTY · API 49-003-20407
Colony 20
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Merit Energy Company
- Permitted by
- Marathon Oil Company
- County
- Big Horn
- Field
- Garland
A vertical oil well in Big Horn County, Wyoming, operated by Merit Energy Company. WOGCC status: producing oil well.
Spudded November 20, 1976 and drilled to 4,655 ft measured depth.
Completed in 3 fields: Garland, Garland, Garland.
It has reported 317,108 bbl of oil, 48,897 Mcf of gas, and 46,819,030 bbl of water since the record begins in January 1978; in the twelve months through August 2026, 9,280 bbl, 3,623 Mcf, and 1,277,806 bbl.
- 9,280
- bbl oil, 12 months through Aug 2026
- 3,623
- Mcf gas, same 12 months
- 1.3M
- bbl produced water, same 12 months
- 317,108
- bbl oil since Jan 1978 · 48,897 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Nov 8, 1976
- Operator
- Marathon Oil Company
- Proposed formation
- Madison
- Target depth
- 4,655 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 9,280 · prior 12 9,173(+1%)
Colony 20: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
Formation tops
Download CSV →11 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| MUDDY | 1,764 ft |
| DAKOTA | 2,000 ft |
| LAKOTA | 2,150 ft |
| SUNDANCE | 2,611 ft |
| GYPSUM SPRINGS | 2,964 ft |
| CHUGWATER | 3,110 ft |
| DINWOODY | 3,634 ft |
| EMBAR | 3,657 ft |
| TENSLEEP | 3,746 ft |
| AMSDEN | 3,874 ft |
| MADISON | 4,090 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Well record
- API number
- 49-003-20407
- Location
- NW SW 33-56N-97W · 2000 FSL, 300 FWL
- Coordinates
- 44.78706, -108.54991 ↗
- Elevation KB
- 4,022 ft
- Measured depth
- 4,655 ft
- Total depth
- 4,655 ft
- Perforations
- 4,058 to 4,468 ft
- Land
- Private
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved Nov 8, 1976
- Proposed formation
- Madison
- Target depth
- 4,655 ft
- Spudded
- Nov 20, 1976
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/4900320407, documented in the API reference.