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Powder River County, MT oil and gas wells

1,289 wells: 195 active, 836 plugged, run by 210 operators.

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

Top operators in Powder River

OperatorActiveWells here
Denbury Onshore, LLC190449
M & K Oil Company58
True Oil LLC055
Gary Energy Corporation053
Davis Oil Company038
Exxon Corporation034
Richardson Operating Company032
Smokey Oil Company, Inc.023
Chandler & Associates, Inc.017
Columbus Energy Corp.016
Wolf Exploration016
Exeter Exploration Company014
Powder River Oil014
Sumatra Oil Et Al014
Tiger Oil Company014
Dekalb Energy Company013
Midwest Oil Corporation013
Placid Oil Company013
Greer, George J012
Gary-Williams Company, The011
Suncor Energy (Natural Gas) America Inc.011
El Paso Production Oil & Gas Company09
Encore Operating LP09
Husky Oil Company09
Vessels & Bass09

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Castle Rock 5AP 25-075-22248Plugged GasRocky Mountain Gas, Inc.
Castle Rock 6AP 25-075-22255Plugged GasRocky Mountain Gas, Inc.
Castle Rock 8A 25-075-22254Plugged Dry holeSuncor Energy (Natural Gas) America Inc.
Castle Rock 9A 25-075-22252Plugged Dry holeSuncor Energy (Natural Gas) America Inc.
Castle Rock 9P 25-075-22230Plugged Dry holeSuncor Energy (Natural Gas) America Inc.
Cempco State 23-29 25-075-22151Plugged Dry holeTrue Oil LLC
Champlin Federal 11-6 25-075-21741Plugged Dry holeTrue Oil LLC
Cheyenne State 1 25-075-22096Plugged Dry holeDavis Oil Company
Clark Canadian Powers 1 25-075-21883Plugged Dry holeClark Canadian Exploration Company
Clements 1 25-075-05166Plugged Dry holeMidwest Oil Corporation
Cochran 1 25-075-21951Plugged Dry holeEl Paso Production Oil & Gas Company
Colorado 14-3 25-075-21769Plugged Dry holeTrue Oil LLC
Combs 1 25-075-05106Plugged Dry holeDavis Oil Company
Cone Federal 13-31 25-075-22198Plugged Dry holeTrue Oil LLC
Cone Federal 43-31 25-075-22194Plugged Dry holeSmokey Oil Company, Inc.
Conoco Federal 21 1 25-075-22208Plugged Dry holeConoco Inc.
Conoco Federal 36-1 25-075-22200Plugged Dry holeConoco Inc.
Conoco Federal M 030587 1 25-075-21608Plugged Dry holeClark Canadian Exploration Company
Conodo Federal 2 25-075-22201Plugged Dry holeConoco Inc.
Considine 13-26 25-075-22183Plugged Dry holeTrue Oil LLC
Cook 13-27 25-075-22119Plugged Dry holeAnschutz Corporation, The
Coquina Federal 1-5 25-075-22106Plugged Dry holeAnschutz Corporation, The
Cottonwood State 1 25-075-05105Plugged Dry holeGulf Oil Corporation
Crites-Schaffer 1 25-075-21256Plugged Dry holeAustral Oil
Culver-USA 1-14 25-075-21216Plugged Dry holeOliver, Donald M.
Culver-USA 2-12 25-075-21164Plugged Dry holeUnion Texas Petroleum Corporation
Custer Federal M-65386 1 25-075-22176Plugged Dry holeDavis Oil Company
D.V. Benge 1 25-075-22019Plugged Dry holePetroquest Inc
DONEGAN E<>1-29 25-075-21856Plugged Dry holeColumbus Energy Corp.
Damm 16-12 25-075-21922Plugged Dry holeDekalb Energy Company
Daniel R. Kraft 1 25-075-05014Plugged Dry holeMobil Oil Corp.
Darr Federal 44-21 25-075-22173Plugged Dry holeTrue Oil LLC
Deerwester 33-21 25-075-22131Plugged Dry holeSmokey Oil Company, Inc.
Deibel 1 25-075-05067Plugged Dry holeDavis Oil Company
Deibel-Jesse 1 25-075-05068Plugged Dry holeFarmers Union Central Exchange, Inc.
E.A. Combs 1 25-075-21956Plugged Dry holeEl Paso Production Oil & Gas Company
E.W. Watters 1-12 25-075-21657Plugged Dry holeTiger Oil Company
Earl Malley 5 25-075-21081Plugged OilTiger Oil Company
Eaton 1-21 25-075-21928Plugged Dry holeMcMahon Bullington Drilling Co.
Estes 1 25-075-05059Plugged Dry holeOien Oil
F B Ranch 2-28X 25-075-22278Plugged ServicePowder River Gas, LLC
F. Cadwell 1 25-075-22216Plugged Dry holeTerry, Orlyn
F.W. Baugmartner-Pemberton 1 25-075-21323Plugged Dry holeBaumgartner, F. W.
FED-BIDDLE 30-1 25-075-21460Plugged Dry holeLove Oil Co Inc.
FED-BIDDLE 32-1 25-075-21461Plugged Dry holeLove Oil Co Inc.
FEDERAL 1-31 25-075-21175Plugged Dry holeTiger Oil Company
FEDERAL 1529 25-075-22214Plugged Dry holeExxon Corporation
FEDERAL 2285-3 25-075-21069Plugged Dry holeManifold Mineral & Mining Co.
FEDERAL 25-13 25-075-21395Plugged Dry holeGary Energy Corporation
FEDERAL 4-31 25-075-21176Plugged Dry holeTiger Oil Company
FEDERAL-S<>2-35 25-075-21171Plugged Dry holeTiger Oil Company
FERGUSONFLB8-24 25-075-21023Plugged Dry holeTiger Oil Company
Federal 021771 23-10 25-075-21886Plugged Dry holeBoekel, R. G.
Federal 1 25-075-05002Plugged Dry holeTrigg, John H.
Federal 1 25-075-05022Plugged Dry holeAmbassador Oil
Federal 1 25-075-05168Plugged OilUnion Texas Petroleum Corporation
Federal 1 25-075-21321Plugged GasDenbury Onshore, LLC
Federal 1 25-075-21537Plugged Dry holeBethol Corp
Federal 1 25-075-21552Plugged Dry holePowder River Oil
Federal 1 25-075-21796Plugged Dry holeMobil Exploration&Producing North America Inc
Federal 1 25-075-21869Plugged Dry holePetroleum, Inc.
Federal 1 25-075-21878Plugged Dry holeClark Canadian Exploration Company
Federal 1 25-075-21915Plugged Dry holeLuff Exploration Company
Federal 1 25-075-21964Plugged Dry holeMac Oil Co. Of Sterling, Inc.
Federal 1 25-075-21976Plugged Dry holeProvinse David A
Federal 1 25-075-22023Plugged Dry holeGuthrie, A. K.
Federal 1 25-075-22210Plugged Dry holeOXY USA Inc.
Federal 1-15 25-075-05164Plugged Dry holeMiami Oil Producers, Inc.
Federal 1-15 25-075-21906Plugged Dry holeSohio Petroleum Company
Federal 1-17 25-075-21257Plugged Dry holeDekalb Energy Company
Federal 1-17 25-075-21291Plugged Dry holeTiger Oil Company
Federal 1-18 25-075-21948Plugged Dry holeWells, Keith J.
Federal 1-20 25-075-22082Plugged Dry holeFlorida Exploration Company
Federal 1-2493 1 25-075-21539Plugged Dry holeConoco Inc.
Federal 1-25 25-075-21276Plugged Dry holeColumbus Energy Corp.
Federal 1-29 25-075-21218Plugged Dry holeDekalb Energy Company
Federal 1-31 25-075-05186Plugged Dry holeKissinger, Clyde E.
Federal 1-31R 25-075-21867Plugged Dry holeKissinger, Clyde E.
Federal 1-5 25-075-22069Plugged Dry holeDevon Corporation
Federal 1-8 25-075-21781Plugged Dry holeKathol Petroleum
Federal 10-34 25-075-21442Plugged OilColumbus Energy Corp.
Federal 11-20 25-075-21643Plugged OilCardinal Petroleum
Federal 11-30 25-075-21603Plugged Dry holeBoekel, R. G.
Federal 12-17 25-075-22205Plugged Dry holeCNG Producing Company
Federal 12-20 25-075-21701Plugged Dry holeCardinal Petroleum
Federal 12-4 25-075-21334Plugged InjectionGary-Williams Company, The
Federal 12-6 25-075-21336Plugged OilEncore Operating LP
Federal 14-11 25-075-21900Plugged Dry holeWestrans Petroleum
Federal 14-9 25-075-22207Plugged Dry holeLasmo Energy Corporation
Federal 14E-30 1 25-075-22095Plugged Dry holeRME Petroleum Company
Federal 15-09 25-075-21078Plugged OilDenbury Onshore, LLC
Federal 15-20 25-075-21678Plugged Dry holeCardinal Petroleum
Federal 16-2 25-075-22027Plugged Dry holeMarmik Oil Company
Federal 17-1 25-075-21002Plugged Dry holeGary Energy Corporation
Federal 17-1 25-075-21494Plugged Dry holeSundance Corp
Federal 17-3 25-075-22014Plugged Dry holeGary Energy Corporation
Federal 2-16 25-075-21929Plugged GasDenbury Onshore, LLC
Federal 2-20 25-075-22086Plugged Dry holeFlorida Exploration Company
Federal 2-3 25-075-21784Plugged OilPronghorn Energy Services, Inc
Federal 21-15 25-075-22148Plugged Dry holeTrue Oil LLC

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