Illinois drilling activity records with verified source dates and coverage limits. Missing categories stay unknown. Counts are not statewide totals. Free to cite, quote, and embed with attribution.
Source refresh dates: Source dates incomplete · CC BY 4.0This Illinois report includes 456 permit records, — spudded wells without recorded first production, — spud records, and — producing-well records. The county activity summary includes 102 counties. Counts describe the included records, not statewide totals; source refresh dates are listed below.
| # | Operator | Wells | Permit records | DUC records |
|---|---|---|---|---|
| 1 | The Ohio Oil | 10,782 | 0 | 0 |
| 2 | Marathon Oil Company | 4,529 | 0 | 0 |
| 3 | The Texas Company | 4,094 | 0 | 0 |
| 4 | Pure Oil Company | 3,223 | 0 | 0 |
| 5 | Texaco | 2,427 | 0 | 0 |
Counts describe the records included in each category. Coverage is limited and some categories are capped; these counts are not statewide totals. Permit, spud, and producing-well records reflect the selection window at their source refresh, not a rolling count as of today. Spud records exclude wells with recorded first production. The DUC category uses spud date without recorded first production as a proxy; it does not independently verify completion status. County summaries and operator rankings cover their included records.
Operator rankings:
Permit records: through
DUC records: Refresh date unavailable
Spud records: Refresh date unavailable
Producing-well records: Refresh date unavailable
County activity:
An unavailable source date does not establish a zero count. Source refresh dates describe the included records, not the time this page was opened. Use the state regulator reference to research filings; it does not certify these compiled counts.
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Wondering whether to sell now? See Is now a good time to sell mineral rights in Illinois? — it ties this drilling data to the factors that decide timing, then routes to a free written offer.
Keep the cited as-of date with reused figures; this page updates as the data is refreshed.
Journalists and researchers: monthly figures, county-level breakdowns, and CSV extracts are available on request — [email protected].