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Custer County, MT oil and gas wells

228 wells: 1 active, 217 plugged, run by 87 operators.

Figures from the Montana Board of Oil and Gas Conservation, updated 2026-10-19.

Top operators in Custer

OperatorActiveWells here
DCT, LLC11
Andrau, W. E.021
Wolf Exploration014
El Paso Natural Gas Company011
Beer O. N. & John R.010
Gas Producing Enterprises07
Gary Energy Corporation06
North Central Oil Corp.06
Columbus Energy Corp.05
Dome Petroleum Corp05
Hancock Warren J.05
Montana Oil & Gas, LLC05
Ozark Corp.05
Stanolind Oil & Gas Co.05
Fidelity Exploration & Production Co.04
Gary, Samuel, Oil Producer04
Gulf Oil Corporation04
Mesa Operating Limited Partnership04
Mountain States Drilling Co.04
Tenneco Oil Company04
BWAB Incorporated03
Big Sky Ranches, Inc.03
Burlington Northern Inc.03
Chevron U.S.A. Inc.(A Pennsylvania Corp.)03
Davis Oil Company03

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Shumaker 1 25-017-21039Plugged Dry holeJackson, L.B. Etal
State 1 25-017-05053Plugged Dry holeMontana Bell Oil & Gas Co.
State 1-36 25-017-21127Plugged Dry holeHancock Warren J.
State 13-16 25-017-21172Plugged Dry holeBig Sky Ranches, Inc.
State 8-16 25-017-21171Plugged Dry holeBig Sky Ranches, Inc.
Swayne 1-6 25-017-21160Plugged Dry holeDome Petroleum Corp
TONN 1-23 25-017-21099Plugged Dry holeUnion Texas Petroleum Corporation
TONN 1-33 25-017-21103Plugged Dry holeUnion Texas Petroleum Corporation
TONN 1-9 25-017-21100Plugged Dry holeUnion Texas Petroleum Corporation
TURNER FED. 1 25-017-05038Plugged ServiceGulf Oil Corporation
Tonn 12-15 25-017-21175Plugged GasFidelity Exploration & Production Co.
USA 22-3-47 #1 25-017-21002Plugged Dry holeTenneco Oil Company
USA 33-34 25-017-21168Plugged GasPowder River Gas, LLC
USA-SNYD<>21-30 25-017-21122Plugged Dry holeGas Producing Enterprises
Venn 1 25-017-05059Plugged Dry holeDavis Oil Company
W. L. Mathers 1 25-017-21135Plugged Dry holeHighland Resource
WILLIAMS 1 25-017-06010Plugged Dry holeOzark Corp.

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