WYOMING · WELLS · WESTON COUNTY · API 49-045-29555

Mary Baker 4-1A

ActiveVertical oil wellWOGCC status: Producing Oil Well

Operator of record
M & K Oil Company LLC
County
Weston

A vertical oil well in Weston County, Wyoming, operated by M & K Oil Company LLC. WOGCC status: producing oil well.

Spudded October 18, 2019 and drilled to 5,152 ft measured depth.

Completed in one field: Finn-Shurley.

It has reported 10,602 bbl of oil, 33,617 Mcf of gas, and 1,370 bbl of water since January 2020; in the twelve months through August 2026, 1,301 bbl, 5,088 Mcf, and 111 bbl.

1,301
bbl oil, 12 months through Aug 2026
5,088
Mcf gas, same 12 months
111
bbl produced water, same 12 months
10,602
bbl oil since Jan 2020 · 33,617 Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Received
May 17, 2019
Approved
Aug 22, 2019
Wellbore
Vertical
Proposed formation
Turner
Target depth
5,400 ft
Proposed bottom hole
43.56498, -104.55760 ↗

Wells nearby

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

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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 1,301 · prior 12 1,325(-2%)

02004002020202120222023202420252026

Mary Baker 4-1A: Oil by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
Finn-ShurleyTurnerActive4,784 to 4,961 MDJan 18, 2020Jan 2020 to Sep 202610,60233,6171,370

Formation tops

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

FormationDepth
FOX HILLS1,370 ft
NIOBRARA4,510 ft
TURNER4,784 ft

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

Formation tops nearby

Well record

API number
49-045-29555
Location
NW NW 4-41N-64W · 808 FNL, 761 FWL
Elevation KB
3,987 ft
Measured depth
5,152 ft
Total depth
5,400 ft
Perforations
4,784 to 4,961 ft
Land
Private
Basin, as WOGCC files it
Powder River Basin
APD
Approved Aug 22, 2019
Proposed formation
Turner
Target depth
5,400 ft
Spudded
Oct 18, 2019

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/4904529555, documented in the API reference.