Home › Illinois › Clay
Clay County, IL oil and gas wells
9,516 wells: 0 active, 6,576 plugged, run by 1,307 operators.
Figures from the Illinois State Geological Survey, updated 2026-10-17.
Top operators in Clay
| Operator | Active | Wells here |
|---|
| Pure Oil Company | 0 | 505 |
| Union Oil Company of California | 0 | 322 |
| Texas Company, The | 0 | 248 |
| Gulf Refining Company | 0 | 137 |
| McBride, W. C. Inc. | 0 | 134 |
| Texaco, Inc. | 0 | 132 |
| Gator Oil Company | 0 | 124 |
| Elysium Energy, L.L.C. | 0 | 123 |
| McCollum & Kincaid Oil Prod., Inc. | 0 | 122 |
| Britton, Shelby A. & Sylvia | 0 | 111 |
| National Associated Petroleum Co. | 0 | 104 |
| Shulman Bros., Inc. | 0 | 102 |
| McKinney Oil Producer, Inc. | 0 | 98 |
| Hanson Oil Company | 0 | 95 |
| Magnolia Petroleum Company | 0 | 85 |
| Zanetis, John M. Estate of | 0 | 83 |
| Ashland Oil & Refining Company | 0 | 81 |
| Rudy, John W., Estate of | 0 | 81 |
| Texas Co., The | 0 | 81 |
| Union Oil Company of CA | 0 | 79 |
| Gulf Oil Corporation | 0 | 75 |
| Kingwood Oil Co. | 0 | 75 |
| Duncan, Walter | 0 | 72 |
| Phillips Petroleum Co. | 0 | 72 |
| Newton, Don W. | 0 | 67 |
Wells
Not plugged · All wells · Plugged · Orphaned
| Well | API / ID | Status | Type | Operator |
|---|
| No wells match. |