Delta Drilling
Operator of record for 177 catalogued wells across 8 states. Every well below links to its full registry page.
Filed as: DELTA DRILLING · DELTA DRILLING CO · DELTA DRILLING COMPANY · Delta Drilling Co · …
At a glance
Delta Drilling is the operator of record for 177 catalogued U.S. oil & gas wells in 8 states. 41 (23%) are active, 125 (71%) plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Kentucky, with 117 wells (66% of its portfolio).
Wells operated
177
Active
41
Plugged
125
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Kentucky | 117 |
| Illinois | 28 |
| Wyoming | 19 |
| Colorado | 8 |
| Arkansas | 2 |
| Louisiana | 1 |
| New Mexico | 1 |
| New York | 1 |
Well mix
- Oil wells
- 94
- Gas wells
- 5
- Shut-in
- 0
- Active share
- 23%
Is this your company?
Claim Delta Drilling to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Delta Drilling operate?
Delta Drilling's catalogued wells are spread across 8 states: Kentucky (117), Illinois (28), Wyoming (19), Colorado (8) and Arkansas (2) and 3 more. Its 117 Kentucky wells are 0.1% of the 201,022 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 Delta Drilling’s wells are active, plugged or orphaned?
23% of Delta Drilling's catalogued wells are active, 6 percentage points below the national share of 29%. 71% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Delta Drilling operate?
By product class, 94 (53%) are oil wells and 5 (3%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Barnett 1 in Miller, AR at 11,167 ft. The wells listed below sit in Miller (AR), Sweetwater (WY), Niobrara (WY), Weston (WY), Cortland (NY) and Campbell (WY) and other counties. State filings spell the name 5 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Delta Drilling
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Barnett 1 | 03-091-10036 | Plugged & abandoned | Oil | Miller, AR | Delta Drilling Co | 11,167 ft |
| Unit 5 | 49-037-06446 | Plugged & abandoned | Gas | Sweetwater, WY | Delta Drilling Company | 9,834 ft |
| Govt 1 | 49-037-05957 | Plugged & abandoned | Gas | Sweetwater, WY | Delta Drilling Company | 9,029 ft |
| Delta-Williston-Gov 1-A | 49-027-05992 | Plugged & abandoned | Oil | Niobrara, WY | Delta Drilling Company | 8,584 ft |
| A J Sherwin Et Al 1 | 49-045-11295 | Plugged & abandoned | Oil | Weston, WY | Delta Drilling Company | 8,500 ft |
| Clough K & O 1 | 31-023-04714 | Plugged & abandoned | Other type | Cortland, NY | Delta Drilling Co. | 8,272 ft |
| Lyle-Govt 1 | 49-005-05264 | Plugged & abandoned | Oil | Campbell, WY | Delta Drilling Company | 7,935 ft |
| Govt 1 | 49-025-20518 | Plugged & abandoned | Oil | Natrona, WY | Delta Drilling Company | 7,660 ft |
| Govt 1 | 49-043-20032 | Plugged & abandoned | Oil | Washakie, WY | Delta Drilling Company | 7,601 ft |
| State-Humphries 1 | 49-025-20106 | Plugged & abandoned | Oil | Natrona, WY | Delta Drilling Company | 7,035 ft |
| 1 Kenny | 05-103-06104 | Plugged & abandoned | Other type | Rio Blanco, CO | Delta Drilling | 6,746 ft |
| 1 Parker | 05-123-05159 | Plugged & abandoned | Other type | Weld, CO | Delta Drilling | 6,525 ft |
Deepest first where depth is published. See all 177 wells →
Frequently asked questions
How many wells does Delta Drilling operate?
Delta Drilling is the operator of record for 177 catalogued oil & gas wells, with the largest concentration in Kentucky (117). Only wells in states WellCensus has ingested are counted.
How many of Delta Drilling's wells are still active?
41 of Delta Drilling's catalogued wells are active; 125 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Delta Drilling operate wells?
Delta Drilling is the operator of record for wells in Kentucky (117), Illinois (28), Wyoming (19), Colorado (8), Arkansas (2), Louisiana (1), New Mexico (1) and New York (1).
Does Delta Drilling operate mostly oil or gas wells?
94 of Delta Drilling's catalogued wells are oil wells and 5 are gas wells; the rest are injection, service or unclassified wells.
What is Delta Drilling's deepest well?
Among wells with a published depth, Barnett 1 in Miller, AR is the deepest at 11,167 ft.
Where Delta Drilling's wells are
- Oil & gas wells in Kentucky· 117 operated by Delta Drilling
- Oil & gas wells in Illinois· 28 operated by Delta Drilling
- Oil & gas wells in Wyoming· 19 operated by Delta Drilling
- Oil & gas wells in Colorado· 8 operated by Delta Drilling
- Oil & gas wells in Arkansas· 2 operated by Delta Drilling
- Oil & gas wells in Louisiana· 1 operated by Delta Drilling
- Largest U.S. well operators
- All well operators
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, “Delta Drilling — well portfolio”, https://wellcensus.com/operators/delta-drilling-6677 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).