WYOMING · WELLS · CROOK COUNTY · API 49-011-05077

South Slattery Unit 31-31

ActiveVertical oil wellWOGCC status: Producing Oil Well

Operator of record
True Oil LLC
County
Crook

A vertical oil well in Crook County, Wyoming, operated by True Oil LLC. WOGCC status: producing oil well.

Spudded November 13, 1964.

Completed in one field: Slattery.

It has reported 346,698 bbl of oil, 15,216 Mcf of gas, and 1,580,142 bbl of water since the record begins in January 1978; its last reported production was December 2022.

0
bbl oil, 12 months through Aug 2026
0
Mcf gas, same 12 months
0
bbl produced water, same 12 months
346,698
bbl oil since Jan 1978 · 15,216 Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Approved
Nov 12, 1964
Operator
True Oil LLC
Proposed formation
Minnelusa
Target depth
7,908 ft

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 0 · prior 12 0

01K2K3K1980198519901995200020052010201520202025

South Slattery Unit 31-31: Oil by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
SlatteryMinnelusa——Dec 26, 1964by Jan 1978 to Dec 2022346,69815,2161,580,142

Formation tops

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

FormationDepth
NIOBRARA,FM4,740 ft
MOWRY,MBR (SH)6,085 ft
MUDDY,FM6,260 ft
SKULL CREEK,SH6,282 ft
DAKOTA,FM6,486 ft
LAKOTA,FM (INYAN KARA GP)6,555 ft
MORRISON,FM6,602 ft
SUNDANCE,FM6,710 ft
HULETT,SS MBR (RIERDON FM)6,775 ft
SPEARFISH,FM6,943 ft
GOOSE EGG,FM7,477 ft
MINNEKAHTA,LS7,781 ft
OPECHE,FM7,808 ft
MINNELUSA,FM7,841 ft

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

Formation tops nearby

Well record

API number
49-011-05077
Location
NW NE 31-49N-68W · 330 FNL, 330 FEL
Elevation KB
4,219 ft
Total depth
7,908 ft
Basin, as WOGCC files it
Powder River Basin
APD
Approved Nov 12, 1964
Proposed formation
Minnelusa
Target depth
7,908 ft
Spudded
Nov 13, 1964

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/4901105077, documented in the API reference.