WYOMING · WELLS · CARBON COUNTY · API 49-007-21105
Big Med Bow Unit 4-25
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Valkyrie Operating LLC
- Permitted by
- United Utilities Corporation
- County
- Carbon
- Field
- Big Medicine Bow
A vertical oil well in Carbon County, Wyoming, operated by Valkyrie Operating LLC. WOGCC status: producing oil well.
Spudded June 16, 1988.
Completed in 6 fields: Big Medicine Bow, Big Medicine Bow, Big Medicine Bow, Big Medicine Bow, and 2 more.
It has reported 104,583 bbl of oil, 72,291 Mcf of gas, and 5,896,321 bbl of water since November 1988; in the twelve months through August 2026, 1,730 bbl, 397 Mcf, and 567,486 bbl.
- 1,730
- bbl oil, 12 months through Aug 2026
- 397
- Mcf gas, same 12 months
- 567,486
- bbl produced water, same 12 months
- 104,583
- bbl oil since Nov 1988 · 72,291 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Sep 1, 1987
- Operator
- United Utilities Corporation
- Proposed formation
- Dakota
- Target depth
- 7,299 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 1,730 · prior 12 1,489(+16%)
Big Med Bow Unit 4-25: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| Big Medicine BowDakota | Active | — | Dec 31, 1988 | Nov 1988 to Sep 2026 | 73,290 | 21,635 | 1,914,574 |
| Big Medicine BowFrontier | Active | — | — | Mar 2010 to Sep 2026 | 15,780 | 15,036 | 2,639,070 |
| Big Medicine BowMuddy | Active | — | — | Mar 2010 to Sep 2026 | 3,877 | 3,691 | 648,188 |
| Big Medicine BowSundance | Active | 5,150 to 5,202 MD | — | Oct 1989 to Sep 2026 | 11,636 | 31,929 | 694,489 |
| Big Medicine BowSundance-2 | — | — | Dec 3, 1989 | — | — | — | — |
| Big Medicine BowSundance-1 | — | — | Dec 31, 1988 | — | — | — | — |
Formation tops
Download CSV →10 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| WALL CREEK | 3,966 ft |
| MUDDY | 4,726 ft |
| DAKOTA | 4,820 ft |
| LAKOTA | 4,880 ft |
| MORRISON | 4,978 ft |
| SUNDANCE | 5,146 ft |
| CHUGWATER | 5,568 ft |
| FORELLE | 6,268 ft |
| TENSLEEP | 7,077 ft |
| AMSDEN | 7,134 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Sonoma Energy Corporation | Apr 1, 2003 | today |
| P & M Petroleum Management LLC | Mar 1, 2002 | Apr 1, 2003 |
| Tiger Rose Energy Corporation | Dec 1, 2001 | Mar 1, 2002 |
| Sonoma Energy Corporation | Apr 22, 2000 | Dec 1, 2001 |
| United Utilities Corporation | Jan 1, 2000 | Apr 22, 2000 |
Well record
- API number
- 49-007-21105
- Location
- C NW 25-21N-79W · 2340 FNL, 50 FWL
- Coordinates
- 41.76315, -106.24721 ↗
- Elevation
- 7,250 ft
- Elevation KB
- 7,264 ft
- Total depth
- 7,299 ft
- Perforations
- 5,150 to 5,202 ft
- Land
- Private
- Basin, as WOGCC files it
- Hanna
- APD
- Approved Sep 1, 1987
- Proposed formation
- Dakota
- Target depth
- 7,299 ft
- Spudded
- Jun 16, 1988
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/4900721105, documented in the API reference.