Darrah Oil
Operator of record for 440 catalogued wells across 2 states. Every well below links to its full registry page.
At a glance
Darrah Oil is the operator of record for 440 catalogued U.S. oil & gas wells in 2 states. 304 (69%) are active, 110 (25%) plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in Kansas, with 433 wells (98% of its portfolio).
Wells operated
440
Active
304
Plugged
110
Orphaned
2
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 433 |
| Montana | 7 |
Well mix
- Oil wells
- 299
- Gas wells
- 24
- Shut-in
- 13
- Active share
- 69%
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Claim Darrah Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Darrah Oil operate?
Darrah Oil's catalogued wells are spread across 2 states: Kansas (433) and Montana (7). Its 433 Kansas wells are 0.1% of the 473,140 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 Darrah Oil’s wells are active, plugged or orphaned?
69% of Darrah Oil's catalogued wells are active, 40 percentage points above the national share of 29%. 25% are plugged & abandoned, against 47% nationally. 13 wells (3%) are shut-in — unplugged but idle. 2 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Darrah Oil operate?
By product class, 299 (68%) are oil wells and 24 (5%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Longee 1 in Roosevelt, MT at 9,485 ft. The wells listed below sit in Roosevelt (MT), Meade (KS), Seward (KS), Grant (KS) and Cheyenne (KS).
Notable wells operated by Darrah Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Longee 1 | 25-085-21101 | Active | Oil | Roosevelt, MT | Darrah Oil Company, LLC | 9,485 ft |
| Murphy Zimmerman 14-21 | 25-085-21498 | Orphaned | Oil | Roosevelt, MT | Darrah Oil Company, LLC | 8,062 ft |
| Brookman 1 WIW | 25-085-21129 | Active | Injection | Roosevelt, MT | Darrah Oil Company, LLC | 7,916 ft |
| Sletvold 2-D | 25-085-05227 | Orphaned | Injection | Roosevelt, MT | Darrah Oil Company, LLC | 7,777 ft |
| Mann 1 | 25-085-21139 | Active | Oil | Roosevelt, MT | Darrah Oil Company, LLC | 7,699 ft |
| Stai 1 | 25-085-21025 | Active | Oil | Roosevelt, MT | Darrah Oil Company, LLC | 7,609 ft |
| Fox 1-24 | 15-119-20867 | Active | Oil | Meade, KS | Darrah Oil Company, LLC | 6,075 ft |
| Wickman 1-5 | 15-175-20897 | Plugged & abandoned | Gas | Seward, KS | Darrah Oil Company, LLC | 5,950 ft |
| Ray 1-35 | 15-067-21233 | Plugged & abandoned | Injection | Grant, KS | Darrah Oil Company, LLC | 5,790 ft |
| Ray 2-35 | 15-067-21317 | Plugged & abandoned | Oil | Grant, KS | Darrah Oil Company, LLC | 5,700 ft |
| Brunswig 1-1 | 15-023-21638 | Plugged & abandoned | Other type | Cheyenne, KS | Darrah Oil Company, LLC | 5,510 ft |
| Hines Trust 1-16 | 15-023-21661 | Plugged & abandoned | Other type | Cheyenne, KS | Darrah Oil Company, LLC | 5,202 ft |
Deepest first where depth is published. See all 440 wells →
Frequently asked questions
How many wells does Darrah Oil operate?
Darrah Oil is the operator of record for 440 catalogued oil & gas wells, with the largest concentration in Kansas (433). Only wells in states WellCensus has ingested are counted.
How many of Darrah Oil's wells are still active?
304 of Darrah Oil's catalogued wells are active; 110 are plugged & abandoned and 2 are flagged as orphaned.
In which states does Darrah Oil operate wells?
Darrah Oil is the operator of record for wells in Kansas (433) and Montana (7).
Does Darrah Oil operate mostly oil or gas wells?
299 of Darrah Oil's catalogued wells are oil wells and 24 are gas wells; the rest are injection, service or unclassified wells.
What is Darrah Oil's deepest well?
Among wells with a published depth, Longee 1 in Roosevelt, MT is the deepest at 9,485 ft.
Where Darrah 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, “Darrah Oil — well portfolio”, https://wellcensus.com/operators/darrah-oil-75942 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).