Courson Coring & Drlg
Operator of record for 26 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Courson Coring & Drlg is the operator of record for 26 catalogued U.S. oil & gas wells in 1 state. 2 (8%) are active, 24 (92%) plugged & abandoned. Its largest concentration is in Illinois, with 26 wells (100% of its portfolio).
Wells operated
26
Active
2
Plugged
24
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 26 |
Well mix
- Oil wells
- 3
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 8%
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Claim your operator profileWhere does Courson Coring & Drlg operate?
Courson Coring & Drlg's catalogued wells are spread across 1 state: Illinois (26). Its 26 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 Courson Coring & Drlg’s wells are active, plugged or orphaned?
8% of Courson Coring & Drlg's catalogued wells are active, 21 percentage points below the national share of 29%. 92% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Courson Coring & Drlg operate?
By product class, 3 (12%) 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 Green 4 in Marion, IL at 3,638 ft. The wells listed below sit in Marion (IL), Effingham (IL) and Fayette (IL).
Notable wells operated by Courson Coring & Drlg
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Green 4 | 12-121-28388 | Plugged & abandoned | Other type | Marion, IL | Courson Coring & Drlg. | 3,638 ft |
| Geiler 1 | 12-121-27001 | Plugged & abandoned | Other type | Marion, IL | Courson Coring & Drlg. | 3,356 ft |
| Green 3 | 12-121-28329 | Plugged & abandoned | Other type | Marion, IL | Courson Coring & Drlg. | 2,450 ft |
| Green 2 | 12-121-28313 | Active | Oil | Marion, IL | Courson Coring & Drlg. | 2,445 ft |
| Crockett 1 | 12-121-28331 | Plugged & abandoned | Other type | Marion, IL | Courson Coring & Drlg. | 2,438 ft |
| Kroening, J. 1 | 12-049-25101 | Plugged & abandoned | Other type | Effingham, IL | Courson Coring & Drlg. | 2,360 ft |
| Geiler 1 | 12-121-26914 | Plugged & abandoned | Oil | Marion, IL | Courson Coring & Drlg. | 2,072 ft |
| Heinzmann 1 | 12-051-27458 | Plugged & abandoned | Other type | Fayette, IL | Courson Coring & Drlg. | 2,068 ft |
| Spoeleder 1 | 12-051-26740 | Plugged & abandoned | Other type | Fayette, IL | Courson Coring & Drlg. | 2,058 ft |
| Schaefer 1 | 12-051-26665 | Plugged & abandoned | Other type | Fayette, IL | Courson Coring & Drlg. | 2,050 ft |
| Spoeleder Comm. 1 | 12-051-26615 | Plugged & abandoned | Other type | Fayette, IL | Courson Coring & Drlg. | 2,044 ft |
| Wollin 1 | 12-051-26629 | Plugged & abandoned | Other type | Fayette, IL | Courson Coring & Drlg. | 2,044 ft |
Deepest first where depth is published. See all 26 wells →
Frequently asked questions
How many wells does Courson Coring & Drlg operate?
Courson Coring & Drlg is the operator of record for 26 catalogued oil & gas wells, with the largest concentration in Illinois (26). Only wells in states WellCensus has ingested are counted.
How many of Courson Coring & Drlg's wells are still active?
2 of Courson Coring & Drlg's catalogued wells are active; 24 are plugged & abandoned.
In which states does Courson Coring & Drlg operate wells?
Courson Coring & Drlg is the operator of record for wells in Illinois (26).
Does Courson Coring & Drlg operate mostly oil or gas wells?
3 of Courson Coring & Drlg's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Courson Coring & Drlg's deepest well?
Among wells with a published depth, Green 4 in Marion, IL is the deepest at 3,638 ft.
Where Courson Coring & Drlg'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, “Courson Coring & Drlg — well portfolio”, https://wellcensus.com/operators/courson-coring-drlg-91387 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).