WYOMING · WELLS · CONVERSE COUNTY · API 49-009-06129

Big Muddy River Unit 12

Shut inVertical oil wellWOGCC status: Shut-In

Operator of record
Big Muddy Operating LLC
Permitted by
Dyer and Rice
County
Converse

A vertical oil well in Converse County, Wyoming, operated by Big Muddy Operating LLC. WOGCC status: shut-in.

Spudded April 21, 1947.

Completed in 2 fields: Big Muddy East, Big Muddy East.

It has reported 279 bbl of oil, 0 Mcf of gas, and 27,205 bbl of water since the record begins in January 1978; its last reported production was March 1978.

0
bbl oil, 12 months through Aug 2026
0
Mcf gas, same 12 months
0
bbl produced water, same 12 months
279
bbl oil since Jan 1978 · 0 Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Approved
Mar 31, 1947
Target depth
4,475 ft

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

Loading the map…

Open the full map →

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 0 · prior 12 0

0501001501980198519901995200020052010201520202025

Big Muddy River Unit 12: Oil by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
Big Muddy EastDakota——May 6, 1947by Jan 1978 to Mar 1978279027,205
Big Muddy EastWall Creek——Jun 15, 2010————

Formation tops

Download CSV →

6 tops as filed, by depth. A formation filed more than once is listed each time.

FormationDepth
SHANNON SS1,137 ft
SHANNON,SS MBR (CODY SH)1,137 ft
FRONTIER3,170 ft
FRONTIER,FM3,170 ft
DAKOTA4,423 ft
DAKOTA,FM4,423 ft

Source: Wyoming Oil and Gas Conservation Commission, "Geological Markers Based On Form 3"

Formation tops nearby

Well record

API number
49-009-06129
Location
SE SE 3-33N-76W · 1012 FSL, 1042 FWL
Elevation
5,064 ft
Total depth
4,475 ft
Land
Private
Basin, as WOGCC files it
Powder River Basin
APD
Approved Mar 31, 1947
Proposed formation
Dakota
Target depth
4,475 ft
Spudded
Apr 21, 1947

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/4900906129, documented in the API reference.