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Petroleum County, MT oil and gas wells

706 wells: 40 active, 574 plugged, run by 233 operators.

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

Top operators in Petroleum

OperatorActiveWells here
Cat Creek Holdings LLC3656
Columbia Petroleum, Ltd.29
R & A Oil, Inc.111
Ranch Oil Company, Inc.14
Cenex, Inc.078
Continental Oil Company033
Conoco Inc.025
Mid-Northern Oil Co.021
Frantz Corporation015
Taylor, Ike015
Carnell, Millicent C.012
Central Montana Resources, LLC012
Minnesota Flatwillow Petroleum Corp.012
California Company, The011
True Oil LLC011
RME Petroleum Company08
Cat Creek Oil07
Flank Oil07
Mountain States Petroleum Corp.07
Shaffer07
Midwest06
Pacific Petroleum06
Schwartz, H.H. Jr06
Cardinal Petroleum05
Peerless Oil Company05

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
FISHER 1 25-069-05214Plugged Dry holeFisher Etal
FLEED 1 25-069-05062Plugged Dry holeFlank Oil
FLOYD HILL 1 25-069-05053Plugged DisposalConoco Inc.
FORBES 1 25-069-05265Plugged Dry holeWestern Petroleum Producers
FORBES 1 25-069-05269Plugged Dry holeCat Creek Oil
FRADD 1 25-069-05246Plugged Dry holeGainer, B.R.
FRADD 1 25-069-05255Plugged Dry holeHadley Etal
FRASER LA<>9-10 25-069-21043Plugged Dry holeFPCO Oil And Gas Co.
Federal 21-A 25-069-06602Plugged OilContinental Oil Company
Federal 3 25-069-60172Plugged OilMidwest
Federal 4 25-069-06604Plugged OilContinental Oil Company
Federal M-24794 12-22 25-069-21027Plugged Dry holeMontana Power Company
Fee 2 25-069-05242Plugged OilColumbia Petroleum, Ltd.
Ferdenberg (Schuster) 1 25-069-05116Plugged Dry holeStormwind Sol
Fifer 3 25-069-05141Plugged InjectionCat Creek Holdings LLC
Firefoot 1 25-069-21173Plugged Dry holeCentral Montana Resources, LLC
Firefoot 1B 25-069-21181Plugged OilCentral Montana Resources, LLC
Flat Willow 8-28-14-25 25-069-21153Plugged Dry holeCarbon Energy Corporation (USA)
Flatwillow 1-31H 25-069-21168Plugged Dry holeCirque Resources LP
Fradd 1 25-069-05245Plugged Dry holeTexas National
Fradd 1 25-069-05258Plugged Dry holeJones Petroleum Corp.
Fradd 1 25-069-21058Plugged OilCarnell, Millicent C.
Fradd 1 25-069-60073Plugged OilShaffer
Fradd 1-A 25-069-05257Plugged Dry holeTrench Oil Co
Fradd 1-A 25-069-05373Plugged OilPyramid
Fradd 10 25-069-06615Plugged OilMinnesota Flatwillow Petroleum Corp.
Fradd 11 25-069-06616Plugged Dry holeMinnesota Flatwillow Petroleum Corp.
Fradd 13 25-069-05244Plugged OilMinnesota Oil Etal
Fradd 2 25-069-21078Plugged OilCarnell, Millicent C.
Fradd 2 25-069-60074Plugged OilShaffer
Fradd 3 25-069-60075Plugged OilShaffer
Fradd 4 25-069-60076Plugged Dry holeShaffer
Fradd 5 25-069-06610Plugged Dry holeTrench Oil Co
Fradd 6 25-069-06611Plugged OilMinnesota Flatwillow Petroleum Corp.
Fradd 7 25-069-06612Plugged OilMinnesota Flatwillow Petroleum Corp.
Fradd 8 25-069-06613Plugged OilMinnesota Flatwillow Petroleum Corp.
Fradd 9 25-069-06614Plugged OilMinnesota Flatwillow Petroleum Corp.
Fradd-Carnell 1 25-069-21081Plugged Dry holeMurphy Drilling Corporation
Fradd-Carnell 2 25-069-21080Plugged Dry holeMurphy Drilling Corporation
G A OSTLER 1 25-069-05286Plugged DisposalConoco Inc.
GEL OIL FUND 6 25-069-21107Plugged Dry holeColumbia Petroleum, Ltd.
GIARDINELLO 1-A 25-069-05142Plugged DisposalConoco Inc.
GOFFE<>24-28-AP 25-069-21071Plugged Dry holeCherry Creek Oil Co.
GOFFENA 1 25-069-05003Plugged Dry holeFlank Oil
GOFFENA 1 25-069-05023Plugged Dry holeCardinal Petroleum
GOFFENA 2 25-069-05007Plugged Dry holeFlank Oil
GOFFENA <>44-23 25-069-21083Plugged Dry holeTrue Oil LLC
GOFFENA-<>15-35 25-069-21032Plugged Dry holeFPCO Oil And Gas Co.
GOVERNMENT 1 25-069-05059Plugged Dry holeHadley, Herbert D.
GOVT (FED) 15 25-069-05188Plugged Dry holeSchwartz, H.H. Jr
GOVT (FED) 24-A 25-069-05194Plugged Dry holeHomestake Oil & Gas Co.
GOVT 1 25-069-05046Plugged Dry holeWilkins, Howard F.
GOVT 1 25-069-05139Plugged Dry holeTower, Charles
GOVT 1 25-069-05148Plugged Dry holeRiver Dome Petroleum
GOVT 13-28 25-069-05270Plugged Dry holeCardinal Petroleum
GOVT FORBES 2 25-069-05178Plugged Dry holeForbes, G.T. & J.F.
GOVT GREEN 1 23 25-069-05186Plugged Dry holeConoco Inc.
GOVT-HADLEY-<>1 25-069-05288Plugged Dry holeFlank Oil
GOVT-NORRIS 1 25-069-21005Plugged Dry holeMichigan-Wisconsin Pipe Line
GOVT-SWARTZ 1 25-069-05028Plugged OilShrock
GOVT-TOWER 1 25-069-05025Plugged Dry holeWilkins, Howard F.
GOVT. 11 25-069-06590Plugged OilContinental Oil Company
GOVT. 12A 25-069-60019Plugged OilContinental Oil Company
GOVT. 13 25-069-06588Plugged OilContinental Oil Company
GOVT. 15A 25-069-06589Plugged OilContinental Oil Company
GOVT. 16A 25-069-06591Plugged Dry holeContinental Oil Company
GOVT.-DAVIS 2B 25-069-06584Plugged Dry holeEdwards Etal
GREEN (FED) 10 25-069-60131Plugged OilCenex, Inc.
GREEN (FED) 12 25-069-60132Plugged InjectionMid-Northern Oil Co.
GREEN (FED) 15 25-069-60133Plugged OilMid-Northern Oil Co.
GREEN (FED) 17 25-069-60134Plugged Dry holeMid-Northern Oil Co.
GREEN 1-12B 25-069-05182Plugged InjectionCenex, Inc.
GREEN 1-B 25-069-05263Plugged Dry holeCalifornia Company, The
GREEN 16A 25-069-60037Plugged OilMid-Northern Oil Co.
GUENON 1 25-069-05150Plugged Dry holeFlank Oil
Gel 4 25-069-21105Plugged OilColumbia Petroleum, Ltd.
Gel Oil Fund 2 25-069-21077Plugged OilColumbia Petroleum, Ltd.
Govt. 022205-A 22 25-069-05239Plugged Dry holeUtah Southern Oil
Govt. 1-4 25-069-60138Plugged OilTaylor, Ike
Govt. 13 25-069-60126Plugged OilSchwartz, H.H.
Govt. 3-6 25-069-60140Plugged OilTaylor, Ike
Govt. 4-B 25-069-60173Plugged OilMidwest
Govt. 6 25-069-60174Plugged OilWest Dome Oil
Govt. 9 25-069-60177Plugged Dry holeWest Dome Oil
Gree 12A-2-12 25-069-06529Plugged OilCenex, Inc.
Green 12-9 25-069-60031Plugged OilFrantz Corporation
Green Fed 3 25-069-60129Plugged OilContinental Oil Company
Green Federal 6-B 25-069-05175Plugged Dry holeConoco Inc.
Greene 1 25-069-60165Plugged Dry holeCalifornia Co., The
H.A. BROWN 3 25-069-06540Plugged InjectionCenex, Inc.
H.A. BROWN 4 25-069-60046Plugged InjectionCenex, Inc.
HALLE PETROL<>1 25-069-05005Plugged Dry holeTrue Oil LLC
HANSEN 1 25-069-05060Plugged Dry holeFlank Oil
HANSON 14-19 25-069-21060Plugged Dry holeBraun, C. F. & Co.
HARLAN #1 25-069-21017Plugged Dry holeCarnell, Millicent C.
HARLAN #8 25-069-06554Plugged OilConoco Inc.
HARLAN #9 (6) 25-069-05370Plugged OilContinental Oil Company
HARLAN 1 25-069-60081Plugged OilFrantz Corporation
HARMS 1 25-069-05002Plugged Dry holeBarker, Lawrence
HASSETT #7-1 25-069-21117Plugged Dry holeDynasty Energy Exploration & Development,Ltd.

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