WYOMING · WELLS · WESTON COUNTY · API 49-045-21157

Grynberg 1

PluggedVertical oil wellWOGCC status: Permanently Abandoned

Operator of record
Toco Corporation
County
Weston

A vertical oil well in Weston County, Wyoming, operated by Toco Corporation. WOGCC status: permanently abandoned.

Spudded January 17, 1978; plugged September 17, 1987.

Completed in one field: Coyote Creek South.

It has reported 69,512 bbl of oil, 0 Mcf of gas, and 77,394 bbl of water since April 1978; its last reported production was February 1986.

0
bbl oil, 12 months through Aug 2026
0
Mcf gas, same 12 months
0
bbl produced water, same 12 months
69,512
bbl oil since Apr 1978 · 0 Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Approved
Jan 9, 1978
Proposed formation
Minnelusa
Target depth
8,359 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

Grynberg 1: Oil by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
Coyote Creek SouthMinnelusa——Apr 25, 1978Apr 1978 to Feb 198669,512077,394

Formation tops

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

FormationDepth
NIOBRARA,FM4,962 ft
TURNER,SANDY MBR (CARLILE SH)5,505 ft
MOWRY,MBR (SH)6,324 ft
MUDDY,FM6,552 ft
DAKOTA,FM6,721 ft
FUSON,FM (INYAN KARA GP)6,794 ft
LAKOTA,FM (INYAN KARA GP)6,826 ft
MORRISON,FM6,946 ft
SPEARFISH,FM7,368 ft
GOOSE EGG,FM7,802 ft
MINNEKAHTA,LS8,034 ft
OPECHE,FM8,060 ft
MINNELUSA,FM8,112 ft

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

Formation tops nearby

Well record

API number
49-045-21157
Location
SE NW 21-48N-68W · 2001 FNL, 2003 FWL
Elevation
4,365 ft GR
Elevation KB
4,376 ft
Total depth
8,359 ft
Land
State
Basin, as WOGCC files it
Powder River Basin
APD
Approved Jan 9, 1978
Proposed formation
Minnelusa
Target depth
8,359 ft
Spudded
Jan 17, 1978
Plugged
Sep 17, 1987

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/4904521157, documented in the API reference.