Dannenberg Roy
Operator of record for 8 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Dannenberg Roy is the operator of record for 8 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 8 (100%) are plugged & abandoned. Its largest concentration is in Illinois, with 8 wells (100% of its portfolio).
Wells operated
8
Active
0
Plugged
8
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 8 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Dannenberg Roy to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Dannenberg Roy operate?
Dannenberg Roy's catalogued wells are spread across 1 state: Illinois (8). Its 8 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 Dannenberg Roy’s wells are active, plugged or orphaned?
0% of Dannenberg Roy's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Dannenberg Roy operate?
By product class, 0 (0%) 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 Austin 1 in Effingham, IL at 2,730 ft. The wells listed below sit in Effingham (IL), Cumberland (IL), Clinton (IL), Madison (IL), Marion (IL) and Sangamon (IL) and other counties.
Notable wells operated by Dannenberg Roy
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Austin 1 | 12-049-22448 | Plugged & abandoned | Other type | Effingham, IL | Dannenberg, Roy | 2,730 ft |
| Siemer 1 | 12-035-01203 | Plugged & abandoned | Other type | Cumberland, IL | Dannenberg, Roy | 2,500 ft |
| Kaufman, Oliver 1 | 12-027-03760 | Plugged & abandoned | Other type | Clinton, IL | Dannenberg, Roy | 2,100 ft |
| Boeser,F.C. Comm. 1 | 12-119-02709 | Plugged & abandoned | Other type | Madison, IL | Dannenberg, Roy | 2,050 ft |
| Simmons 1 | 12-121-05710 | Plugged & abandoned | Other type | Marion, IL | Dannenberg, Roy | 2,020 ft |
| Waddle 1 | 12-167-22010 | Plugged & abandoned | Other type | Sangamon, IL | Dannenberg, Roy | 1,621 ft |
| Hoefer, 1 | 12-107-00536 | Plugged & abandoned | Other type | Logan, IL | Dannenberg, Roy | 1,560 ft |
| Grimmer, Frank 1 | 12-027-03789 | Plugged & abandoned | Other type | Clinton, IL | Dannenberg, Roy | 968 ft |
Deepest first where depth is published. See all 8 wells →
Frequently asked questions
How many wells does Dannenberg Roy operate?
Dannenberg Roy is the operator of record for 8 catalogued oil & gas wells, with the largest concentration in Illinois (8). Only wells in states WellCensus has ingested are counted.
How many of Dannenberg Roy's wells are still active?
0 of Dannenberg Roy's catalogued wells are active; 8 are plugged & abandoned.
In which states does Dannenberg Roy operate wells?
Dannenberg Roy is the operator of record for wells in Illinois (8).
Does Dannenberg Roy operate mostly oil or gas wells?
0 of Dannenberg Roy's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Dannenberg Roy's deepest well?
Among wells with a published depth, Austin 1 in Effingham, IL is the deepest at 2,730 ft.
Where Dannenberg Roy'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, “Dannenberg Roy — well portfolio”, https://wellcensus.com/operators/dannenberg-roy-94809 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).