Questar Petroleum
Operator of record for 1 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Questar Petroleum is the operator of record for 1 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 0 (0%) are plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Illinois, with 1 wells (100% of its portfolio).
Wells operated
1
Active
0
Plugged
0
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 1 |
Well mix
- Oil wells
- 0
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Questar Petroleum to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Questar Petroleum operate?
Questar Petroleum's catalogued wells are spread across 1 state: Illinois (1). Its 1 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 Questar Petroleum’s wells are active, plugged or orphaned?
0% of Questar Petroleum's catalogued wells are active, 29 percentage points below the national share of 29%. 0% 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 Questar Petroleum operate?
By product class, 0 (0%) are oil wells and 1 (100%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Terveer, I. 2 in St. Clair, IL at 842 ft.
Notable wells operated by Questar Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Terveer, I. 2 | 12-163-29565 | Orphaned | Gas | St. Clair, IL | Questar Petroleum, Inc. | 842 ft |
Deepest first where depth is published. See all 1 wells →
Frequently asked questions
How many wells does Questar Petroleum operate?
Questar Petroleum is the operator of record for 1 catalogued oil & gas wells, with the largest concentration in Illinois (1). Only wells in states WellCensus has ingested are counted.
How many of Questar Petroleum's wells are still active?
0 of Questar Petroleum's catalogued wells are active; 0 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Questar Petroleum operate wells?
Questar Petroleum is the operator of record for wells in Illinois (1).
Does Questar Petroleum operate mostly oil or gas wells?
0 of Questar Petroleum's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Questar Petroleum's deepest well?
Among wells with a published depth, Terveer, I. 2 in St. Clair, IL is the deepest at 842 ft.
Where Questar Petroleum'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, “Questar Petroleum — well portfolio”, https://wellcensus.com/operators/questar-petroleum-67077 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).