WYOMING · WELLS · BIG HORN COUNTY · API 49-003-06397
M Cozzens 5
ActiveVertical oil wellWOGCC status: Producing Oil Well
- Operator of record
- Merit Energy Company
- Permitted by
- Marathon Oil Company
- County
- Big Horn
- Field
- Byron
A vertical oil well in Big Horn County, Wyoming, operated by Merit Energy Company. WOGCC status: producing oil well.
Spudded November 5, 1955.
Completed in 3 fields: Byron, Byron, Byron.
It has reported 682,498 bbl of oil, 28,394 Mcf of gas, and 47,565,130 bbl of water since the record begins in January 1978; in the twelve months through August 2026, 16,534 bbl, 725 Mcf, and 1,479,212 bbl.
- 16,534
- bbl oil, 12 months through Aug 2026
- 725
- Mcf gas, same 12 months
- 1.5M
- bbl produced water, same 12 months
- 682,498
- bbl oil since Jan 1978 · 28,394 Mcf gas
- Status
- Approved · WOGCC: Drilling or Drilled Permit
- Approved
- Nov 9, 1955
- Operator
- Marathon Oil Company
- Proposed formation
- Embar-Tens
- Target depth
- 7,764 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 16,534 · prior 12 13,732(+20%)
M Cozzens 5: Oil by month.
Completions
ONE PER RESERVOIR THE WELL IS COMPLETED IN
Formation tops
Download CSV →19 tops as filed, by depth. A formation filed more than once is listed each time.
| Formation | Depth |
|---|---|
| FRONTIER | 1,942 ft |
| MOWRY | 2,558 ft |
| THERMOPOLIS | 2,930 ft |
| MUDDY | 3,194 ft |
| DAKOTA | 3,310 ft |
| MORRISON | 3,506 ft |
| SUNDANCE | 3,962 ft |
| GYPSUM SPRINGS | 4,316 ft |
| RED BEDS | 4,457 ft |
| DINWOODY | 4,945 ft |
| EMBAR | 4,974 ft |
| TENSLEEP | 5,046 ft |
| AMSDEN | 5,225 ft |
| DARWIN | 5,365 ft |
| MADISON | 5,386 ft |
| BIG HORN | 6,375 ft |
| GALLATIN | 6,806 ft |
| GROS VENTRE | 7,290 ft |
| PRE-CAMBRIAN | 7,683 ft |
Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"
Formation tops nearby
Well record
- API number
- 49-003-06397
- Location
- SW NE 23-56N-97W · 1937 FSL, 835 FEL
- Coordinates
- 44.82318, -108.50525 ↗
- Elevation
- 3,998 ft
- Elevation KB
- 4,009 ft
- Total depth
- 7,764 ft
- Land
- Private
- Basin, as WOGCC files it
- Bighorn Basin
- APD
- Approved Nov 9, 1955
- Proposed formation
- Embar-Tens
- Target depth
- 7,764 ft
- Spudded
- Nov 5, 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/4900306397, documented in the API reference.