Dar Lon Operating
Operator of record for 12 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: DAR-LON OPERATING COMPANY · Dar-Lon Operating
At a glance
Dar Lon Operating is the operator of record for 12 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 12 (100%) are plugged & abandoned. Its largest concentration is in Oklahoma, with 10 wells (83% of its portfolio).
Wells operated
12
Active
0
Plugged
12
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Oklahoma | 10 |
| Kansas | 2 |
Well mix
- Oil wells
- 6
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Dar Lon Operating to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Dar Lon Operating operate?
Dar Lon Operating's catalogued wells are spread across 2 states: Oklahoma (10) and Kansas (2). Its 10 Oklahoma wells are 0.0% of the 456,595 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 Dar Lon Operating’s wells are active, plugged or orphaned?
0% of Dar Lon Operating's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Dar Lon Operating operate?
By product class, 6 (50%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Hollingworth 1-3 in Sumner, KS at 4,289 ft. The wells listed below sit in Sumner (KS), Alfalfa (OK), Garfield (OK) and Grant (OK). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Dar Lon Operating
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hollingworth 1-3 | 15-191-22219 | Plugged & abandoned | Other type | Sumner, KS | Dar-Lon Operating | 4,289 ft |
| McLain 1-8 | 15-191-22224 | Plugged & abandoned | Other type | Sumner, KS | Dar-Lon Operating | 4,287 ft |
| Armbruster #2-31 | 35-003-21152 | Plugged & abandoned | Oil | Alfalfa, OK | Dar-Lon Operating Company | — |
| Stoabs #1-3 | 35-003-21271 | Plugged & abandoned | Other type | Alfalfa, OK | Dar-Lon Operating Company | — |
| Lori Lee #1 | 35-003-21459 | Plugged & abandoned | Oil | Alfalfa, OK | Dar-Lon Operating Company | — |
| Dunn #1 | 35-047-23570 | Plugged & abandoned | Oil | Garfield, OK | Dar-Lon Operating Company | — |
| Mcgivney #1 | 35-053-00916 | Plugged & abandoned | Oil | Grant, OK | Dar-Lon Operating Company | — |
| Nona Black #1 | 35-053-21058 | Plugged & abandoned | Other type | Grant, OK | Dar-Lon Operating Company | — |
| Iven #1 | 35-053-21404 | Plugged & abandoned | Oil | Grant, OK | Dar-Lon Operating Company | — |
| Reese #1 | 35-053-00273 | Plugged & abandoned | Other type | Grant, OK | Dar-Lon Operating Company | — |
| Kugel #1 | 35-053-21697 | Plugged & abandoned | Other type | Grant, OK | Dar-Lon Operating Company | — |
| Hazel #1 | 35-053-21596 | Plugged & abandoned | Oil | Grant, OK | Dar-Lon Operating Company | — |
Deepest first where depth is published. See all 12 wells →
Frequently asked questions
How many wells does Dar Lon Operating operate?
Dar Lon Operating is the operator of record for 12 catalogued oil & gas wells, with the largest concentration in Oklahoma (10). Only wells in states WellCensus has ingested are counted.
How many of Dar Lon Operating's wells are still active?
0 of Dar Lon Operating's catalogued wells are active; 12 are plugged & abandoned.
In which states does Dar Lon Operating operate wells?
Dar Lon Operating is the operator of record for wells in Oklahoma (10) and Kansas (2).
Does Dar Lon Operating operate mostly oil or gas wells?
6 of Dar Lon Operating's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Dar Lon Operating's deepest well?
Among wells with a published depth, Hollingworth 1-3 in Sumner, KS is the deepest at 4,289 ft.
Where Dar Lon Operating'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, “Dar Lon Operating — well portfolio”, https://wellcensus.com/operators/dar-lon-operating-7965 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).