Hammack Dean
Operator of record for 2 catalogued wells across 1 state. Every well below links to its full registry page.
Filed as: Hammack Dean · Hammack, Dean
At a glance
Hammack Dean is the operator of record for 2 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 2 (100%) are plugged & abandoned. Its largest concentration is in Illinois, with 2 wells (100% of its portfolio).
Wells operated
2
Active
0
Plugged
2
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 2 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Hammack Dean to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Hammack Dean operate?
Hammack Dean's catalogued wells are spread across 1 state: Illinois (2). Its 2 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 (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Hammack Dean’s wells are active, plugged or orphaned?
0% of Hammack Dean's catalogued wells are active, 30 percentage points below the national share of 30%. 100% are plugged & abandoned, against 48% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Hammack Dean operate?
By product class, 0 (0%) are oil wells and 0 (0%) gas wells; nationally the shares are 45% and 18%. The deepest of its wells with a published depth is Robinson & Ibendahl 1 in Perry, IL at 1,350 ft. State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Hammack Dean
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Robinson & Ibendahl 1 | 12-145-02539 | Plugged & abandoned | Other type | Perry, IL | Hammack Dean | 1,350 ft |
| Hampleman, Blythe Community 4 | 12-145-02413 | Plugged & abandoned | Other type | Perry, IL | Hammack, Dean | 1,175 ft |
Deepest first where depth is published. See all 2 wells →
Frequently asked questions
How many wells does Hammack Dean operate?
Hammack Dean is the operator of record for 2 catalogued oil & gas wells, with the largest concentration in Illinois (2). Only wells in states WellCensus has ingested are counted.
How many of Hammack Dean's wells are still active?
0 of Hammack Dean's catalogued wells are active; 2 are plugged & abandoned.
In which states does Hammack Dean operate wells?
Hammack Dean is the operator of record for wells in Illinois (2).
Does Hammack Dean operate mostly oil or gas wells?
0 of Hammack Dean's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Hammack Dean's deepest well?
Among wells with a published depth, Robinson & Ibendahl 1 in Perry, IL is the deepest at 1,350 ft.
Where Hammack Dean'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 28, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Hammack Dean — well portfolio”, https://wellcensus.com/operators/hammack-dean-108004 (data as of October 28, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).