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Marion County, IL oil and gas wells

10,480 wells: 0 active, 4,514 plugged, run by 1,304 operators.

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

Top operators in Marion

OperatorActiveWells here
Texas Company, The01,489
Texaco, Inc.01,413
The Texas Company0979
Magnolia Petroleum Company0535
Citation Oil & Gas Corp.0338
Texas Co., The0238
Texas Company0130
Ohio Oil Co., The0128
Ego Oil Company0117
National Associated Petroleum Co.0107
Shell Oil Company0101
Ceja Corporation099
Adams Oil & Gas089
Southwestern Oil & Gas085
Felmont Corporation081
Kingwood Oil Co.068
Deep Rock Energy Corp.063
Sohio Petroleum Company061
Lippert, Marshall060
Ohio Oil Company051
Reeves, E.C. Estate of048
Texaco Exploration & Producing, Inc047
Shakespeare Oil Co.044
Conrey, T. M.042
Oelze, Elmer Jr.040

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Black, Harry 1 12-121-05264Plugged Dry hole🔒 Sign in free
Black, Wayne 1 12-121-26658Plugged Dry hole🔒 Sign in free
Blackburn 1 12-121-00905Status not reported Oil🔒 Sign in free
Blackburn 1 12-121-27672Plugged Dry hole🔒 Sign in free
Blackburn R E 1 12-121-01953Status not reported Oil🔒 Sign in free
Blackburn, Londa 1 12-121-05411Plugged Dry hole🔒 Sign in free
Blackwell 1 12-121-01874Plugged Oil🔒 Sign in free
Blair 1 12-121-26783Permitted Unknown🔒 Sign in free
Blair, W.W. 1 12-121-01693Plugged Dry hole🔒 Sign in free
Blair, W.W. 1 12-121-01694Plugged Dry hole🔒 Sign in free
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