WYOMING · WELLS · SUBLETTE COUNTY · API 49-035-21271

Chimney Butte Unit 39-4

ActiveVertical gas wellWOGCC status: Producing Gas Well

Operator of record
Urban Oil & Gas Group LLC
Permitted by
EOG Resources Inc
County
Sublette

A vertical gas well in Sublette County, Wyoming, operated by Urban Oil & Gas Group LLC. WOGCC status: producing gas well.

Spudded April 29, 1994.

Completed in one field: Chimney Butte.

It has reported 4,468 bbl of oil, 834,474 Mcf of gas, and 7,020 bbl of water since June 1994; in the twelve months through August 2026, 19 bbl, 12,820 Mcf, and 65 bbl.

19
bbl oil, 12 months through Aug 2026
12,820
Mcf gas, same 12 months
65
bbl produced water, same 12 months
4,468
bbl oil since Jun 1994 · 834,474 Mcf gas
Status
Approved · WOGCC: Drilling or Drilled Permit
Approved
Mar 15, 1994
Proposed formation
Frontier
Target depth
8,473 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 12,820 · prior 12 13,711(-6%)

010K20K1996199820002002200420062008201020122014201620182020202220242026

Chimney Butte Unit 39-4: Gas by month.

Completions

ONE PER RESERVOIR THE WELL IS COMPLETED IN

FieldStatusPerforations, ftCompletedProducedOil, bblGas, McfWater, bbl
Chimney ButteFrontierActive—Jun 23, 1994Jun 1994 to Aug 20264,468834,4747,020

Formation tops

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

FormationDepth
ALMY1,100 ft
MESAVERDE3,030 ft
BAXTER4,848 ft
FRONTIER6,810 ft
BENCH7,234 ft
MUDDY8,148 ft

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

Formation tops nearby

Operators of record

OperatorFromTo
Urban Oil & Gas Group LLCJul 31, 2025today
Greylock Production LLCSep 1, 2021Jul 31, 2025
EOG Resources IncJan 1, 2000Sep 1, 2021

Well record

API number
49-035-21271
Location
SW NE 4-28N-113W · 2100 FNL, 2180 FEL
Elevation
7,265 ft
Elevation KB
7,274 ft
Total depth
8,473 ft
Land
Federal
Basin, as WOGCC files it
Greater Green River Basin
APD
Approved Mar 15, 1994
Proposed formation
Frontier
Target depth
8,473 ft
Spudded
Apr 29, 1994

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/4903521271, documented in the API reference.