Bolling & Callas
Operator of record for 8 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Bolling & Callas is the operator of record for 8 catalogued U.S. oil & gas wells in 1 state. 4 (50%) are active, 2 (25%) plugged & abandoned. Its largest concentration is in Kentucky, with 8 wells (100% of its portfolio).
Wells operated
8
Active
4
Plugged
2
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kentucky | 8 |
Well mix
- Oil wells
- 0
- Gas wells
- 4
- Shut-in
- 0
- Active share
- 50%
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Claim your operator profileWhere does Bolling & Callas operate?
Bolling & Callas's catalogued wells are spread across 1 state: Kentucky (8). Its 8 Kentucky wells are 0.0% of the 201,022 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 Bolling & Callas’s wells are active, plugged or orphaned?
50% of Bolling & Callas's catalogued wells are active, 21 percentage points above the national share of 29%. 25% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Bolling & Callas operate?
By product class, 0 (0%) are oil wells and 4 (50%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Simmerman, Jessie 3 in Ohio, KY at 1,444 ft. The wells listed below sit in Ohio (KY) and Mclean (KY).
Notable wells operated by Bolling & Callas
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Simmerman, Jessie 3 | KGS record 69444 | Plugged & abandoned | Other type | Ohio, KY | Bolling & Callas | 1,444 ft |
| Simmerman, Jessie 6 | KGS record 69608 | Active | Gas | Ohio, KY | Bolling & Callas | 1,407 ft |
| Simmerman, Jessie 5 | KGS record 69609 | Active | Gas | Ohio, KY | Bolling & Callas | 1,402 ft |
| Simmerman, Jessie 2 | KGS record 69443 | Active | Gas | Ohio, KY | Bolling & Callas | 1,392 ft |
| Simmerman, Jessie 1 | KGS record 69442 | Active | Gas | Ohio, KY | Bolling & Callas | 1,389 ft |
| Simmerman, Jessie 4 | KGS record 69445 | Plugged & abandoned | Other type | Ohio, KY | Bolling & Callas | 1,292 ft |
| Atherton, J L Heirs 2 | KGS record 2024652 | Other status | Other type | Mclean, KY | Bolling & Callas | 1,050 ft |
| Atherton, John C 2 | KGS record 2024696 | Other status | Other type | Ohio, KY | Bolling & Callas | 1,049 ft |
Deepest first where depth is published. See all 8 wells →
Frequently asked questions
How many wells does Bolling & Callas operate?
Bolling & Callas is the operator of record for 8 catalogued oil & gas wells, with the largest concentration in Kentucky (8). Only wells in states WellCensus has ingested are counted.
How many of Bolling & Callas's wells are still active?
4 of Bolling & Callas's catalogued wells are active; 2 are plugged & abandoned.
In which states does Bolling & Callas operate wells?
Bolling & Callas is the operator of record for wells in Kentucky (8).
Does Bolling & Callas operate mostly oil or gas wells?
0 of Bolling & Callas's catalogued wells are oil wells and 4 are gas wells; the rest are injection, service or unclassified wells.
What is Bolling & Callas's deepest well?
Among wells with a published depth, Simmerman, Jessie 3 in Ohio, KY is the deepest at 1,444 ft.
Where Bolling & Callas'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, “Bolling & Callas — well portfolio”, https://wellcensus.com/operators/bolling-callas-107033 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).