Calhoun Research & Development
Operator of record for 51 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Calhoun Research & Development is the operator of record for 51 catalogued U.S. oil & gas wells in 1 state. 16 (31%) are active, 27 (53%) plugged & abandoned. Its largest concentration is in Illinois, with 51 wells (100% of its portfolio).
Wells operated
51
Active
16
Plugged
27
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 51 |
Well mix
- Oil wells
- 23
- Gas wells
- 0
- Shut-in
- 1
- Active share
- 31%
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Claim your operator profileWhere does Calhoun Research & Development operate?
Calhoun Research & Development's catalogued wells are spread across 1 state: Illinois (51). Its 51 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 Calhoun Research & Development’s wells are active, plugged or orphaned?
31% of Calhoun Research & Development's catalogued wells are active, 3 percentage points above the national share of 29%. 53% are plugged & abandoned, against 47% nationally. 1 wells (2%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Calhoun Research & Development operate?
By product class, 23 (45%) 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 Sorrells S- 1 in Brown, IL at 1,175 ft. The wells listed below sit in Brown (IL), Calhoun (IL) and Pike (IL).
Notable wells operated by Calhoun Research & Development
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Sorrells S- 1 | 12-009-21329 | Active | Injection | Brown, IL | Calhoun Research & Development | 1,175 ft |
| Crooks 1 SWD | 12-009-20596 | Plugged & abandoned | Injection | Brown, IL | Calhoun Research & Development | 1,158 ft |
| Barry, Aloys 1 | 12-013-20169 | Plugged & abandoned | Other type | Calhoun, IL | Calhoun Research & Development | 761 ft |
| Ringhausen, K. C 2 | 12-013-20180 | Plugged & abandoned | Other type | Calhoun, IL | Calhoun Research & Development | 725 ft |
| Crooks 6 | 12-009-20569 | Active | Oil | Brown, IL | Calhoun Research & Development | 722 ft |
| Ringhausen, Kenneth C. 1 | 12-013-20168 | Plugged & abandoned | Other type | Calhoun, IL | Calhoun Research & Development | 716 ft |
| Markert 5 | 12-009-20781 | Other status | Other type | Brown, IL | Calhoun Research & Development | 700 ft |
| Crooks 13 | 12-009-21902 | Other status | Oil | Brown, IL | Calhoun Research & Development | 694 ft |
| Greenstreet 4 | 12-149-20767 | Plugged & abandoned | Oil | Pike, IL | Calhoun Research & Development | 690 ft |
| Goodwin 1 | 12-149-20747 | Plugged & abandoned | Other type | Pike, IL | Calhoun Research & Development | 689 ft |
| Ebbing 1 | 12-009-20564 | Plugged & abandoned | Other type | Brown, IL | Calhoun Research & Development | 680 ft |
| Sorrells 9 | 12-009-20723 | Plugged & abandoned | Other type | Brown, IL | Calhoun Research & Development | 678 ft |
Deepest first where depth is published. See all 51 wells →
Frequently asked questions
How many wells does Calhoun Research & Development operate?
Calhoun Research & Development is the operator of record for 51 catalogued oil & gas wells, with the largest concentration in Illinois (51). Only wells in states WellCensus has ingested are counted.
How many of Calhoun Research & Development's wells are still active?
16 of Calhoun Research & Development's catalogued wells are active; 27 are plugged & abandoned.
In which states does Calhoun Research & Development operate wells?
Calhoun Research & Development is the operator of record for wells in Illinois (51).
Does Calhoun Research & Development operate mostly oil or gas wells?
23 of Calhoun Research & Development's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Calhoun Research & Development's deepest well?
Among wells with a published depth, Sorrells S- 1 in Brown, IL is the deepest at 1,175 ft.
Where Calhoun Research & Development'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, “Calhoun Research & Development — well portfolio”, https://wellcensus.com/operators/calhoun-research-development-66018 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).