Clark County, IL oil and gas wells

Name: Clark County, IL oil and gas wells
Creator: Illinois State Geological Survey

8,701 wells: 0 active, 3,744 plugged, run by 941 operators.

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

Top operators in Clark

Operator	Active	Wells here
Ohio Oil Co., The	0	1,683
Forest Oil Corporation	0	476
Pure Oil Company	0	419
The Pure Oil Company	0	279
Associated Oil Production Co.	0	169
Ashley Oil, Inc.	0	141
Huff Drilling Co., Inc.	0	106
Horizontal Systems, Inc.	0	105
Zink, Earnest	0	100
Gary Energy Corp.	0	89
Froderman, G.H. & Connelly, Everett	0	86
Redman Production Co.	0	84
C. L. McMahon, Inc.	0	79
Ohio Oil Company	0	75
Knierim, Max Inc.	0	74
Dover Illinois I, LLC	0	70
L & J Oil & Gas, Inc.	0	69
Ryan, John H.	0	68
Bridge, Frank A.	0	62
Ashley Oil Company	0	59
Partlow Enterprises	0	56
Knierim Company, Inc.	0	55
Dillier & Knierim Co., Inc.	0	53
Tri-Cor Oil Producers	0	47
Samels	0	45

Well	API / ID	Status	Type	Operator
Coleman, Ralph 3	12-023-01450	Plugged	Dry hole	🔒 Sign in free
Coleman, Ralph 1	12-023-01451	Plugged	Dry hole	🔒 Sign in free
Coleman, Ralph 2	12-023-01453	Plugged	Dry hole	🔒 Sign in free
Collier 1	12-023-01001	Plugged	Dry hole	🔒 Sign in free
Collier 1	12-023-01125	Plugged	Oil	🔒 Sign in free
Collier, Olen 1	12-023-01409	Plugged	Dry hole	🔒 Sign in free
Condict & Finney 2	12-023-25503	Plugged	Unknown	🔒 Sign in free
Condict - Finney 1	12-023-25125-0100	Plugged	Unknown	🔒 Sign in free
Condict - Finney Community 1	12-023-25125	Plugged	Oil	🔒 Sign in free
Conley, Sarah J. 1	12-023-02759	Plugged	Dry hole	🔒 Sign in free
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