Heenam & Coe
Operator of record for 5 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Heenam & Coe is the operator of record for 5 catalogued U.S. oil & gas wells in 1 state. 1 (20%) are active, 4 (80%) plugged & abandoned. Its largest concentration is in Illinois, with 5 wells (100% of its portfolio).
Wells operated
5
Active
1
Plugged
4
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 5 |
Well mix
- Oil wells
- 3
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 20%
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Claim your operator profileWhere does Heenam & Coe operate?
Heenam & Coe's catalogued wells are spread across 1 state: Illinois (5). Its 5 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 Heenam & Coe’s wells are active, plugged or orphaned?
20% of Heenam & Coe's catalogued wells are active, 9 percentage points below the national share of 29%. 80% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Heenam & Coe operate?
By product class, 3 (60%) 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 Millican 1 in Marion, IL at 2,556 ft. The wells listed below sit in Marion (IL), Jefferson (IL), White (IL) and Washington (IL).
Notable wells operated by Heenam & Coe
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Millican 1 | 12-121-00701 | Plugged & abandoned | Other type | Marion, IL | Heenam & Coe Co. | 2,556 ft |
| Koberzesky 1 | 12-081-00180 | Plugged & abandoned | Other type | Jefferson, IL | Heenam & Coe Co. | 2,276 ft |
| Storms 1 | 12-193-06216 | Active | Oil | White, IL | Heenam & Coe Co. | 2,263 ft |
| Dennis 2 | 12-189-00222 | Plugged & abandoned | Oil | Washington, IL | Heenam & Coe Co. | 1,281 ft |
| Dennis 1 | 12-189-00220 | Plugged & abandoned | Oil | Washington, IL | Heenam & Coe Co. | 1,280 ft |
Deepest first where depth is published. See all 5 wells →
Frequently asked questions
How many wells does Heenam & Coe operate?
Heenam & Coe is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in Illinois (5). Only wells in states WellCensus has ingested are counted.
How many of Heenam & Coe's wells are still active?
1 of Heenam & Coe's catalogued wells are active; 4 are plugged & abandoned.
In which states does Heenam & Coe operate wells?
Heenam & Coe is the operator of record for wells in Illinois (5).
Does Heenam & Coe operate mostly oil or gas wells?
3 of Heenam & Coe's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Heenam & Coe's deepest well?
Among wells with a published depth, Millican 1 in Marion, IL is the deepest at 2,556 ft.
Where Heenam & Coe'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, “Heenam & Coe — well portfolio”, https://wellcensus.com/operators/heenam-coe-102392 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).