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St. Clair County, IL oil and gas wells

1,650 wells: 0 active, 919 plugged, run by 437 operators.

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

Top operators in St. Clair

OperatorActiveWells here
Illinois Power Co.0122
Canonie Construction Co.0100
IL State Geological Survey0100
Sun Production Co (Sun Oil)085
McMenamy, B. Contr., Inc072
Ohio Oil Co., The070
Mountain Engineering&Co.054
Donnewald, James H.030
McCandlish and Gwaltney Drlng.026
Ameren Illinois Company025
Sun Production Co.(Sun Oil)021
Calvert Funds, Inc.020
Ohio Oil Company016
Tarlton Oil Co016
Geo-Mechanics, Inc.013
Oelze, Elmer Jr.013
Young C W013
Larson Industries, Inc.012
Podolsky Oil Co.012
Alco Oil & Gas Corp.011
Geotechnology011
Loveridge, F. R., Etal011
Kerwin, Thomas R.010
Magnolia Petroleum Company010
Excel Energy Company09

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Feltman, Dan NAE-2 12-163-30655Status not reported Other🔒 Sign in free
Feuerbacher 1 12-163-01588Plugged Dry hole🔒 Sign in free
Finite-Magma 1 12-163-29185Plugged Dry hole🔒 Sign in free
Fischer, Beisiegel Sophia 1 12-163-02121Status not reported Gas🔒 Sign in free
Foley, Ed 12-163-00149Status not reported Unknown—
Forcade, Floyd 1 12-163-02643Plugged Other🔒 Sign in free
Forsyth, Ava et al 1 12-163-02257Plugged Dry hole🔒 Sign in free
Fournes Hilbert C 30 12-163-23721Plugged Dry hole🔒 Sign in free
Fox 1 12-163-02251Plugged Dry hole🔒 Sign in free
Frailey, R.K. et al 1 12-163-01355Plugged Dry hole🔒 Sign in free
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