Calvert & Willis
Operator of record for 79 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Calvert & Willis is the operator of record for 79 catalogued U.S. oil & gas wells in 1 state. 5 (6%) are active, 73 (92%) plugged & abandoned. Its largest concentration is in Illinois, with 79 wells (100% of its portfolio).
Wells operated
79
Active
5
Plugged
73
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 79 |
Well mix
- Oil wells
- 39
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 6%
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Claim your operator profileWhere does Calvert & Willis operate?
Calvert & Willis's catalogued wells are spread across 1 state: Illinois (79). Its 79 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 Calvert & Willis’s wells are active, plugged or orphaned?
6% of Calvert & Willis's catalogued wells are active, 23 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 Calvert & Willis operate?
By product class, 39 (49%) 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 Kirk Walter Hrs 1 in White, IL at 3,601 ft. The wells listed below sit in White (IL), Hamilton (IL), Edwards (IL) and Richland (IL).
Notable wells operated by Calvert & Willis
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Kirk Walter Hrs 1 | 12-193-01226 | Plugged & abandoned | Other type | White, IL | Calvert & Willis | 3,601 ft |
| Kirk Walter Hrs 2 | 12-193-03974 | Plugged & abandoned | Other type | White, IL | Calvert & Willis | 3,592 ft |
| Moore, G.R. 1 | 12-065-00635 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,587 ft |
| White Cleo 1 | 12-065-00701 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,550 ft |
| Leathers, J. 1 | 12-065-00579 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,465 ft |
| Bennet Heirs 1 | 12-047-00542 | Plugged & abandoned | Other type | Edwards, IL | Calvert & Willis | 3,407 ft |
| McCloskey J M 1 | 12-065-01516 | Plugged & abandoned | Oil | Hamilton, IL | Calvert & Willis | 3,398 ft |
| Arteberry F B Coen 1 | 12-159-00710 | Plugged & abandoned | Other type | Richland, IL | Calvert & Willis | 3,335 ft |
| Dial Ada 1 | 12-065-02606 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,334 ft |
| Moss Bertha 1 | 12-065-02234 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,332 ft |
| McLeansboro City 1 | 12-065-00728 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,330 ft |
| Groves U R 1 | 12-065-01465 | Plugged & abandoned | Other type | Hamilton, IL | Calvert & Willis | 3,272 ft |
Deepest first where depth is published. See all 79 wells →
Frequently asked questions
How many wells does Calvert & Willis operate?
Calvert & Willis is the operator of record for 79 catalogued oil & gas wells, with the largest concentration in Illinois (79). Only wells in states WellCensus has ingested are counted.
How many of Calvert & Willis's wells are still active?
5 of Calvert & Willis's catalogued wells are active; 73 are plugged & abandoned.
In which states does Calvert & Willis operate wells?
Calvert & Willis is the operator of record for wells in Illinois (79).
Does Calvert & Willis operate mostly oil or gas wells?
39 of Calvert & Willis's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Calvert & Willis's deepest well?
Among wells with a published depth, Kirk Walter Hrs 1 in White, IL is the deepest at 3,601 ft.
Where Calvert & Willis'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, “Calvert & Willis — well portfolio”, https://wellcensus.com/operators/calvert-willis-66772 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).