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Mason County, IL oil and gas wells

78 wells: 0 active, 53 plugged, run by 23 operators.

Figures from the Illinois State Geological Survey, updated 2026-10-17.

Top operators in Mason

OperatorActiveWells here
Central IL Light Co.024
Panhandle Eastern Pipe Line Company010
Layne-Western Drlg09
IL State Geological Survey05
Bufay Oil Company03
Hagen, Kenneth L.03
Hagen, Lowell & Leon02
Illinois State Geological Survey02
McElyea, Paul W.02
Pinkston Jacob L02
Stewardson, Merle D.02
Alco Oil & Gas Corp.01
Engelke F W & M01
Engelke, F. W.01
Fenstermaker, Paul01
IL State Water Survey01
Layne Western Co., Inc.01
Niagara Oil Co.01
Pinkston, Jacob L.01
Shelter Oil Co.01
Sidwell's Enterprises, Inc.01
Sidwell, Dwight01
Werner Bros01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
(no name) Mk-3 12-125-00246Plugged OtherCentral IL Light Co.
(no name) Mk-1 12-125-00248Plugged OtherCentral IL Light Co.
(no name) Mk-2 12-125-00249Plugged OtherCentral IL Light Co.
(no name) Mh-2 12-125-00251Plugged OtherCentral IL Light Co.
(no name) Mh-4 12-125-00252Plugged OtherCentral IL Light Co.
(no name) Mh-1 12-125-00253Status not reported OtherCentral IL Light Co.
(no name) Mh-3 12-125-00255Status not reported OtherCentral IL Light Co.
Ainsworth 1 12-125-00063Plugged Dry holePinkston Jacob L
Allen Mk13 12-125-00267Plugged OtherCentral IL Light Co.
Beebe 1 12-125-00276Plugged OtherPanhandle Eastern Pipe Line Company
Bell Mk-5 12-125-00247Plugged OtherCentral IL Light Co.
Bell 1 12-125-20777Plugged Dry holeSidwell, Dwight
Bell 2 12-125-20778Plugged UnknownSidwell's Enterprises, Inc.
Blessman, G. 1 12-125-00062Plugged Dry holePinkston Jacob L
Bradley 1 12-125-00034Plugged Dry holeFenstermaker, Paul
Briggs 1 12-125-00277Plugged OtherPanhandle Eastern Pipe Line Company
Cashin Ed 1 12-125-00178Plugged Dry holeWerner Bros
Clark Mk10 12-125-00259Plugged OtherCentral IL Light Co.
Coal Boring 12-125-00001Status not reported UnknownAlco Oil & Gas Corp.
Dennison Mm-9 12-125-00261Plugged OtherCentral IL Light Co.
Ermeling Mk-7 12-125-00257Plugged OtherCentral IL Light Co.
Ermeling, H. J. 1 12-125-00041Plugged Dry holeHagen, Kenneth L.
Foste, Elizabeth 1 12-125-00050Plugged Dry holeMcElyea, Paul W.
Friend 1 12-125-00006Plugged Dry holeNiagara Oil Co.
Friend Mk-4 12-125-00250Plugged OtherCentral IL Light Co.
Friend, C. 1 12-125-00038Plugged Dry holeHagen, Lowell & Leon
Friend, R. 1 12-125-21258Permitted UnknownShelter Oil Co.
Gathmann 1 12-125-00240Plugged OtherPanhandle Eastern Pipe Line Company
Glick, Merle 12-125-22008Status not reported OtherIL State Geological Survey
Grand Island Lodge Mk11 12-125-00266Plugged OtherCentral IL Light Co.
Grand Island Lodge MK-15 12-125-00274Plugged OtherCentral IL Light Co.
Harfst, Loren 1 12-125-00051Plugged Dry holeMcElyea, Paul W.
Hayes 1 12-125-00033Plugged OtherStewardson, Merle D.
Hilst 1 12-125-00279Plugged OtherPanhandle Eastern Pipe Line Company
Hoff 1 12-125-00040Plugged Dry holeHagen, Kenneth L.
Holtman MK-16 12-125-00275Plugged OtherCentral IL Light Co.
ISWS (Kilbourne ICN) 12-125-22365Status not reported OtherIL State Water Survey
Ill Power Co. 2 12-125-21530Permitted UnknownLayne Western Co., Inc.
Ill Power Co. 3 12-125-21531Status not reported OtherLayne-Western Drlg
Ill Power Co. 4 12-125-21532Status not reported OtherLayne-Western Drlg
Ill Power Co. 8 12-125-21533Status not reported OtherLayne-Western Drlg
Ill Power Co. 10 12-125-21534Status not reported OtherLayne-Western Drlg
Illinois Power Co. 7 12-125-20619Status not reported OtherLayne-Western Drlg
Illinois Power Co. 1 12-125-20620Status not reported OtherLayne-Western Drlg
Illinois Power Co. 6 12-125-20621Status not reported OtherLayne-Western Drlg
Illinois Power Co. 5 12-125-20622Status not reported OtherLayne-Western Drlg
Illinois Power Co. 9 12-125-20623Status not reported OtherLayne-Western Drlg
Ingersoll 1 12-125-00236Plugged OtherPanhandle Eastern Pipe Line Company
Ingersoll 2 12-125-00237Plugged OtherPanhandle Eastern Pipe Line Company
Keithley 1 12-125-20802Status not reported OtherBufay Oil Company
Kramer, W. 1 12-125-00017Plugged Dry holePinkston, Jacob L.
Lascelles 1 12-125-00037Plugged Dry holeHagen, Lowell & Leon
Leinweber 1 12-125-00238Plugged OtherPanhandle Eastern Pipe Line Company
Loganberry Lodge MK-14 12-125-00273Plugged OtherCentral IL Light Co.
Loganberry Lodge Mk12 12-125-00288Plugged OtherCentral IL Light Co.
Martin Mm11 12-125-00260Status not reported OtherCentral IL Light Co.
Martin Mk22 12-125-00289Plugged OtherCentral IL Light Co.
Mason 1 12-125-23036Status not reported OtherIL State Geological Survey
Mason 1b 12-125-23037Status not reported OtherIL State Geological Survey
Mason 1c 12-125-23038Status not reported OtherIL State Geological Survey
Mason 2 12-125-23039Status not reported OtherIL State Geological Survey
Mason-14-01 12-125-22856Status not reported OtherIllinois State Geological Survey
Mason-14-02 12-125-22857Status not reported OtherIllinois State Geological Survey
Meeker John W 1 12-125-00280Plugged OtherPanhandle Eastern Pipe Line Company
Mohlman 1 12-125-00005Plugged Dry holeEngelke, F. W.
Moscow Bay Mk17 12-125-00272Plugged OtherCentral IL Light Co.
Null, J R 1 12-125-00138Plugged Dry hole—
Pfeiffer Mk-9 12-125-00258Plugged OtherCentral IL Light Co.
Pfeiffer 1-A 12-125-20780Plugged OtherBufay Oil Company
Pfieffer etal 1 12-125-20788Plugged Dry holeBufay Oil Company
Smith Mk-6 12-125-00254Status not reported OtherCentral IL Light Co.
Smith Mk24 12-125-00287Plugged OtherCentral IL Light Co.
Swaar 1 12-125-00035Plugged Dry holeStewardson, Merle D.
Whitaker 1 12-125-00239Plugged OtherPanhandle Eastern Pipe Line Company
White, Howard 1 12-125-00049Plugged Water supplyHagen, Kenneth L.
Whiteford 1 12-125-00278Plugged OtherPanhandle Eastern Pipe Line Company
Wilson, C. R. 1 12-125-00095Plugged Dry hole—
Woodrow 1 12-125-00004Plugged Dry holeEngelke F W & M