Delong Oil
Operator of record for 55 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Delong Oil is the operator of record for 55 catalogued U.S. oil & gas wells in 1 state. 54 (98%) are active, 1 (2%) plugged & abandoned. Its largest concentration is in Pennsylvania, with 55 wells (100% of its portfolio).
Wells operated
55
Active
54
Plugged
1
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Pennsylvania | 55 |
Well mix
- Oil wells
- 55
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 98%
Is this your company?
Claim Delong Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Delong Oil operate?
Delong Oil's catalogued wells are spread across 1 state: Pennsylvania (55). Its 55 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 Delong Oil’s wells are active, plugged or orphaned?
98% of Delong Oil's catalogued wells are active, 69 percentage points above the national share of 29%. 2% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Delong Oil operate?
By product class, 55 (100%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%.
Notable wells operated by Delong Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Guckert 57 | 37-121-41587 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 34 | 37-121-41630 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 14 | 37-121-41616 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 51 | 37-121-41647 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert G3 | 37-121-41366 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 12 | 37-121-41578 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 45 | 37-121-41641 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert G8 | 37-121-41371 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 25 | 37-121-41621 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert G6 | 37-121-41369 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 30 | 37-121-41626 | Active | Oil | Venango, PA | Delong Oil Inc | — |
| Guckert 13 | 37-121-41579 | Active | Oil | Venango, PA | Delong Oil Inc | — |
Deepest first where depth is published. See all 55 wells →
Frequently asked questions
How many wells does Delong Oil operate?
Delong Oil is the operator of record for 55 catalogued oil & gas wells, with the largest concentration in Pennsylvania (55). Only wells in states WellCensus has ingested are counted.
How many of Delong Oil's wells are still active?
54 of Delong Oil's catalogued wells are active; 1 are plugged & abandoned.
In which states does Delong Oil operate wells?
Delong Oil is the operator of record for wells in Pennsylvania (55).
Does Delong Oil operate mostly oil or gas wells?
55 of Delong Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
Where Delong Oil'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, “Delong Oil — well portfolio”, https://wellcensus.com/operators/delong-oil-102685 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).