Andreassi Andreassi & Hillwig
Operator of record for 23 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Andreassi Andreassi & Hillwig is the operator of record for 23 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 3 (13%) are plugged & abandoned and 20 flagged as orphaned. Its largest concentration is in Pennsylvania, with 23 wells (100% of its portfolio).
Wells operated
23
Active
0
Plugged
3
Orphaned
20
Portfolio by state
| State | Wells |
|---|---|
| Pennsylvania | 23 |
Well mix
- Oil wells
- 23
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Andreassi Andreassi & Hillwig to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Andreassi Andreassi & Hillwig operate?
Andreassi Andreassi & Hillwig's catalogued wells are spread across 1 state: Pennsylvania (23). Its 23 Pennsylvania wells are 0.0% of the 224,189 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 Andreassi Andreassi & Hillwig’s wells are active, plugged or orphaned?
0% of Andreassi Andreassi & Hillwig's catalogued wells are active, 29 percentage points below the national share of 29%. 13% are plugged & abandoned, against 47% nationally. 20 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Andreassi Andreassi & Hillwig operate?
By product class, 23 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by Andreassi Andreassi & Hillwig
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Tom Kaylor 10 | 37-019-00787 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Og Kamerer 11 | 37-019-00788 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Og Kamerer 12 | 37-019-00789 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Og Kamerer 13 | 37-019-00790 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| King Brothers 16 | 37-019-00793 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Wb Reilley 17 | 37-019-00794 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Wb Reilley 18 | 37-019-00795 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Boyle 19 | 37-019-00796 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Ellenberger 20 | 37-019-00797 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Huff 21 | 37-019-00798 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Swartzlander Hillside 22 | 37-019-00799 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
| Swartzlander Plant 23 | 37-019-00800 | Orphaned | Oil | Butler, PA | Andreassi Andreassi & Hillwig | — |
Deepest first where depth is published. See all 23 wells →
Frequently asked questions
How many wells does Andreassi Andreassi & Hillwig operate?
Andreassi Andreassi & Hillwig is the operator of record for 23 catalogued oil & gas wells, with the largest concentration in Pennsylvania (23). Only wells in states WellCensus has ingested are counted.
How many of Andreassi Andreassi & Hillwig's wells are still active?
0 of Andreassi Andreassi & Hillwig's catalogued wells are active; 3 are plugged & abandoned and 20 are flagged as orphaned.
In which states does Andreassi Andreassi & Hillwig operate wells?
Andreassi Andreassi & Hillwig is the operator of record for wells in Pennsylvania (23).
Does Andreassi Andreassi & Hillwig operate mostly oil or gas wells?
23 of Andreassi Andreassi & Hillwig's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Andreassi Andreassi & Hillwig'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, “Andreassi Andreassi & Hillwig — well portfolio”, https://wellcensus.com/operators/andreassi-andreassi-hillwig-71506 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).