Southern Il Exploration
Operator of record for 5 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Southern Il Exploration is the operator of record for 5 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 4 (80%) are plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Illinois, with 5 wells (100% of its portfolio).
Wells operated
5
Active
0
Plugged
4
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 5 |
Well mix
- Oil wells
- 1
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Southern Il Exploration to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Southern Il Exploration operate?
Southern Il Exploration'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 Southern Il Exploration’s wells are active, plugged or orphaned?
0% of Southern Il Exploration's catalogued wells are active, 29 percentage points below the national share of 29%. 80% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Southern Il Exploration operate?
By product class, 1 (20%) 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 Dannehold 1 in Monroe, IL at 520 ft.
Notable wells operated by Southern Il Exploration
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Dannehold 1 | 12-133-21230 | Plugged & abandoned | Other type | Monroe, IL | Southern IL Exploration Company | 520 ft |
| Schroeder-Altoff 1 | 12-133-21192 | Plugged & abandoned | Other type | Monroe, IL | Southern IL Exploration Company | 500 ft |
| Kolmer, Ralph 7 | 12-133-21213 | Plugged & abandoned | Other type | Monroe, IL | Southern IL Exploration Company | 475 ft |
| Dannehold 2 | 12-133-20895 | Orphaned | Oil | Monroe, IL | Southern IL Exploration Company | 467 ft |
| Kolmer, Ralph 6 | 12-133-21212 | Plugged & abandoned | Other type | Monroe, IL | Southern IL Exploration Company | 457 ft |
Deepest first where depth is published. See all 5 wells →
Frequently asked questions
How many wells does Southern Il Exploration operate?
Southern Il Exploration 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 Southern Il Exploration's wells are still active?
0 of Southern Il Exploration's catalogued wells are active; 4 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Southern Il Exploration operate wells?
Southern Il Exploration is the operator of record for wells in Illinois (5).
Does Southern Il Exploration operate mostly oil or gas wells?
1 of Southern Il Exploration's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Southern Il Exploration's deepest well?
Among wells with a published depth, Dannehold 1 in Monroe, IL is the deepest at 520 ft.
Where Southern Il Exploration'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, “Southern Il Exploration — well portfolio”, https://wellcensus.com/operators/southern-il-exploration-66976 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).