Bartelso Oil & Gas
Operator of record for 9 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Bartelso Oil & Gas is the operator of record for 9 catalogued U.S. oil & gas wells in 1 state. 1 (11%) are active, 8 (89%) plugged & abandoned. Its largest concentration is in Illinois, with 9 wells (100% of its portfolio).
Wells operated
9
Active
1
Plugged
8
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 9 |
Well mix
- Oil wells
- 8
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 11%
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Claim Bartelso Oil & Gas to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Bartelso Oil & Gas operate?
Bartelso Oil & Gas's catalogued wells are spread across 1 state: Illinois (9). Its 9 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 Bartelso Oil & Gas’s wells are active, plugged or orphaned?
11% of Bartelso Oil & Gas's catalogued wells are active, 18 percentage points below the national share of 29%. 89% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Bartelso Oil & Gas operate?
By product class, 8 (89%) 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 Maddux Henry 1 in Clinton, IL at 1,090 ft.
Notable wells operated by Bartelso Oil & Gas
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Maddux Henry 1 | 12-027-00224 | Plugged & abandoned | Other type | Clinton, IL | Bartelso Oil & Gas | 1,090 ft |
| Trame, C. 3 | 12-027-00232 | Active | Oil | Clinton, IL | Bartelso Oil & Gas | 1,045 ft |
| rame, C. 1 | 12-027-00230 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 1,037 ft |
| Trame, C. 2 | 12-027-00231 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 1,018 ft |
| Schlarmann, J.H. 2 | 12-027-00260 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 1,017 ft |
| Schlarmann 4 | 12-027-00281 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 999 ft |
| Schlarmann 5 | 12-027-00323 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 997 ft |
| Schlarmann 3 | 12-027-00262 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 996 ft |
| Schlarmann 1 | 12-027-00259 | Plugged & abandoned | Oil | Clinton, IL | Bartelso Oil & Gas | 987 ft |
Deepest first where depth is published. See all 9 wells →
Frequently asked questions
How many wells does Bartelso Oil & Gas operate?
Bartelso Oil & Gas is the operator of record for 9 catalogued oil & gas wells, with the largest concentration in Illinois (9). Only wells in states WellCensus has ingested are counted.
How many of Bartelso Oil & Gas's wells are still active?
1 of Bartelso Oil & Gas's catalogued wells are active; 8 are plugged & abandoned.
In which states does Bartelso Oil & Gas operate wells?
Bartelso Oil & Gas is the operator of record for wells in Illinois (9).
Does Bartelso Oil & Gas operate mostly oil or gas wells?
8 of Bartelso Oil & Gas's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Bartelso Oil & Gas's deepest well?
Among wells with a published depth, Maddux Henry 1 in Clinton, IL is the deepest at 1,090 ft.
Where Bartelso Oil & Gas'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, “Bartelso Oil & Gas — well portfolio”, https://wellcensus.com/operators/bartelso-oil-gas-94233 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).