Hardin Cg
Operator of record for 34 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Hardin Cg is the operator of record for 34 catalogued U.S. oil & gas wells in 1 state. 9 (26%) are active, 24 (71%) plugged & abandoned. Its largest concentration is in Illinois, with 34 wells (100% of its portfolio).
Wells operated
34
Active
9
Plugged
24
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 34 |
Well mix
- Oil wells
- 25
- Gas wells
- 0
- Shut-in
- 1
- Active share
- 26%
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Claim your operator profileWhere does Hardin Cg operate?
Hardin Cg's catalogued wells are spread across 1 state: Illinois (34). Its 34 Illinois wells are 0.0% of the 174,478 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Hardin Cg’s wells are active, plugged or orphaned?
26% of Hardin Cg's catalogued wells are active, 2 percentage points below the national share of 29%. 71% are plugged & abandoned, against 47% nationally. 1 wells (3%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Hardin Cg operate?
By product class, 25 (74%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Erwin, Paul 1 in Clay, IL at 3,114 ft. The wells listed below sit in Clay (IL), Richland (IL) and Perry (IL).
Notable wells operated by Hardin Cg
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Erwin, Paul 1 | 12-025-00223 | Plugged & abandoned | Oil | Clay, IL | Hardin, C. G. | 3,114 ft |
| Henry 1 | 12-025-01140 | Shut-in | Other type | Clay, IL | Hardin, C. G. | 3,027 ft |
| Keck, E. W. 1 | 12-025-02633 | Plugged & abandoned | Other type | Clay, IL | Hardin, C. G. | 2,981 ft |
| Tolliver, J. O. 1 | 12-025-02637 | Plugged & abandoned | Oil | Clay, IL | Hardin, C. G. | 2,973 ft |
| Bokenkamp, H. J. 1 | 12-159-00549 | Plugged & abandoned | Oil | Richland, IL | Hardin, C. G. | 2,970 ft |
| Cailteux, Frank 1 | 12-025-02639 | Active | Oil | Clay, IL | Hardin, C. G. | 2,968 ft |
| Geis W H 1 | 12-159-00502 | Plugged & abandoned | Oil | Richland, IL | Hardin, C. G. | 2,965 ft |
| Dickerson, M. 2 | 12-159-00540 | Plugged & abandoned | Oil | Richland, IL | Hardin, C. G. | 2,962 ft |
| Geis W H 2 | 12-159-00528 | Plugged & abandoned | Oil | Richland, IL | Hardin, C. G. | 2,962 ft |
| Dickey, Hope 1 | 12-025-02644 | Plugged & abandoned | Oil | Clay, IL | Hardin, C. G. | 2,960 ft |
| Palmer 1 | 12-025-03474 | Plugged & abandoned | Oil | Clay, IL | Hardin, C. G. | 2,949 ft |
| Hammack 1 | 12-145-02496 | Plugged & abandoned | Other type | Perry, IL | Hardin, C. G. | 2,912 ft |
Deepest first where depth is published. See all 34 wells →
Frequently asked questions
How many wells does Hardin Cg operate?
Hardin Cg is the operator of record for 34 catalogued oil & gas wells, with the largest concentration in Illinois (34). Only wells in states WellCensus has ingested are counted.
How many of Hardin Cg's wells are still active?
9 of Hardin Cg's catalogued wells are active; 24 are plugged & abandoned.
In which states does Hardin Cg operate wells?
Hardin Cg is the operator of record for wells in Illinois (34).
Does Hardin Cg operate mostly oil or gas wells?
25 of Hardin Cg's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Hardin Cg's deepest well?
Among wells with a published depth, Erwin, Paul 1 in Clay, IL is the deepest at 3,114 ft.
Where Hardin Cg's wells are
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Hardin Cg — well portfolio”, https://wellcensus.com/operators/hardin-cg-93287 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).