Kaylar Dev
Operator of record for 13 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Kaylar Dev is the operator of record for 13 catalogued U.S. oil & gas wells in 1 state. 5 (38%) are active, 3 (23%) plugged & abandoned and 5 flagged as orphaned. Its largest concentration is in Pennsylvania, with 13 wells (100% of its portfolio).
Wells operated
13
Active
5
Plugged
3
Orphaned
5
Portfolio by state
| State | Wells |
|---|---|
| Pennsylvania | 13 |
Well mix
- Oil wells
- 11
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 38%
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Claim Kaylar Dev to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Kaylar Dev operate?
Kaylar Dev's catalogued wells are spread across 1 state: Pennsylvania (13). Its 13 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 Kaylar Dev’s wells are active, plugged or orphaned?
38% of Kaylar Dev's catalogued wells are active, 10 percentage points above the national share of 29%. 23% are plugged & abandoned, against 47% nationally. 5 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Kaylar Dev operate?
By product class, 11 (85%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in McKean (PA) and Warren (PA).
Notable wells operated by Kaylar Dev
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Onifro O 3 | 37-083-31253 | Active | Oil | McKean, PA | Kaylar Dev Corp | — |
| Onifro O 13 | 37-083-31396 | Orphaned | Oil | McKean, PA | Kaylar Dev Corp | — |
| Onifro O 10 | 37-083-30751 | Plugged & abandoned | Other type | McKean, PA | Kaylar Dev Corp | — |
| Onofrio 1 | 37-083-30394 | Plugged & abandoned | Other type | McKean, PA | Kaylar Dev Corp | — |
| Onifro O 12 | 37-083-31395 | Orphaned | Oil | McKean, PA | Kaylar Dev Corp | — |
| Hertzel Farm Lease (Klenk Bros) 1 | 37-123-22055 | Active | Oil | Warren, PA | Kaylar Dev Corp | — |
| Hertzel Farm Lease (Klenk Bros) 4 | 37-123-22058 | Active | Oil | Warren, PA | Kaylar Dev Corp | — |
| Onofrio 2 | 37-083-30868 | Plugged & abandoned | Oil | McKean, PA | Kaylar Dev Corp | — |
| Coldren 13 | 37-083-30366 | Orphaned | Oil | McKean, PA | Kaylar Dev Corp | — |
| Hertzel Farm Lease (Klenk Bros) 3 | 37-123-22057 | Active | Oil | Warren, PA | Kaylar Dev Corp | — |
| Hertzel Farm Lease (Klenk Bros) 2 | 37-123-22056 | Active | Oil | Warren, PA | Kaylar Dev Corp | — |
| Coldren 1000 | 37-083-30184 | Orphaned | Oil | McKean, PA | Kaylar Dev Corp | — |
Deepest first where depth is published. See all 13 wells →
Frequently asked questions
How many wells does Kaylar Dev operate?
Kaylar Dev is the operator of record for 13 catalogued oil & gas wells, with the largest concentration in Pennsylvania (13). Only wells in states WellCensus has ingested are counted.
How many of Kaylar Dev's wells are still active?
5 of Kaylar Dev's catalogued wells are active; 3 are plugged & abandoned and 5 are flagged as orphaned.
In which states does Kaylar Dev operate wells?
Kaylar Dev is the operator of record for wells in Pennsylvania (13).
Does Kaylar Dev operate mostly oil or gas wells?
11 of Kaylar Dev's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Kaylar Dev'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, “Kaylar Dev — well portfolio”, https://wellcensus.com/operators/kaylar-dev-103460 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).