WYOMING · WELLS · BIG HORN COUNTY · API 49-003-06051
Mary Welch 2H
ActiveHorizontal oil wellWOGCC status: Producing Oil Well
- Operator of record
- Merit Energy Company
- Permitted by
- Marathon Oil Company
- County
- Big Horn
- Field
- Garland
A horizontal oil well in Big Horn County, Wyoming, operated by Merit Energy Company. WOGCC status: producing oil well.
Spudded June 21, 1955.
Completed in 5 fields: Garland, Garland, Garland, Garland, and 1 more.
It has reported 56,676 bbl of oil, 6,335 Mcf of gas, and 2,154,374 bbl of water since January 1986; in the twelve months through August 2026, 1,179 bbl, 349 Mcf, and 155,538 bbl.
- 1,179
- bbl oil, 12 months through Aug 2026
- 349
- Mcf gas, same 12 months
- 155,538
- bbl produced water, same 12 months
- 56,676
- bbl oil since Jan 1986 · 6,335 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Received
- Apr 4, 2005
- Approved
- Jul 20, 2005
- Operator
- Marathon Oil Company
- Wellbore
- Horizontal
- Proposed formation
- Madison
- Target depth
- 4,344 ft
2 APDs on file for this well, newest first
| Approved | Received | Operator | Status | Formation | Target depth |
|---|---|---|---|---|---|
| Jul 20, 2005 | Apr 4, 2005 | Marathon Oil Company | ApprovedDrilling or Drilled Permit | Madison | 4,344 ft |
| Jun 21, 1955 | — | Marathon Oil Company | ApprovedDrilling or Drilled Permit | Tensleep | 4,075 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 1,179 · prior 12 2,766(-57%)
Mary Welch 2H: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
| Field | Status | Perforations, ft | Completed | Produced | Oil, bbl | Gas, Mcf | Water, bbl |
|---|---|---|---|---|---|---|---|
| GarlandPhosphoria-Tensleep | Active | — | Jun 30, 2017 | Nov 2018 to Aug 2026 | 9,476 | 2,889 | 1,093,943 |
| GarlandMadison | — | 4,279 to 6,243 MD | Oct 21, 2005 | Oct 2005 to Jun 2017 | 20,142 | 559 | 204,793 |
| GarlandAmsden | — | — | — | Jan 1986 to Nov 1996 | 27,058 | 2,887 | 855,638 |
| GarlandDarwin | — | — | Jan 14, 1986 | — | — | — | — |
| GarlandTensleep | — | 3,900 to 4,025 MD | — | — | 0 | 0 | 0 |
Formation tops
Download CSV →5 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| PHOSPHORIA | 3,792 ft |
| TENSLEEP | 3,878 ft |
| AMSDEN | 4,036 ft |
| DARWIN | 4,202 ft |
| MADISON | 4,242 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Operators of record
| Operator | From | To |
|---|---|---|
| Merit Energy Company | Jul 1, 2016 | today |
| Marathon Oil Company | Jan 1, 2000 | Jul 1, 2016 |
Well record
- API number
- 49-003-06051
- Location
- SW SW 33-56N-97W · 299 FNL, 288 FWL
- Coordinates
- 44.78417, -108.54756 ↗
- Elevation
- 4,003 ft
- Elevation KB
- 4,012 ft
- Total depth
- 4,321 ft
- Perforations
- 3,900 to 6,243 ft
- Land
- Private
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved Jul 20, 2005
- Proposed formation
- Madison
- Target depth
- 4,344 ft
- Spudded
- Jun 21, 1955
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/4900306051, documented in the API reference.