Shannon Oil
Operator of record for 34 catalogued wells across 5 states. Every well below links to its full registry page.
Filed as: SHANNON OIL · SHANNON OIL CO · SHANNON OIL CO, INC · Shannon Oil · …
At a glance
Shannon Oil is the operator of record for 34 catalogued U.S. oil & gas wells in 5 states. None is listed as active, 29 (85%) are plugged & abandoned and 3 flagged as orphaned. Its largest concentration is in Wyoming, with 17 wells (50% of its portfolio).
Wells operated
34
Active
0
Plugged
29
Orphaned
3
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 17 |
| Colorado | 11 |
| Kentucky | 3 |
| California | 2 |
| Montana | 1 |
Well mix
- Oil wells
- 13
- Gas wells
- 3
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Shannon Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Shannon Oil operate?
Shannon Oil's catalogued wells are spread across 5 states: Wyoming (17), Colorado (11), Kentucky (3), California (2) and Montana (1). Its 17 Wyoming wells are 0.0% of the 129,957 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 Shannon Oil’s wells are active, plugged or orphaned?
0% of Shannon Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 85% are plugged & abandoned, against 47% nationally. 3 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Shannon Oil operate?
By product class, 13 (38%) are oil wells and 3 (9%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Sand Draw South Unit 1 in Fremont, WY at 8,999 ft. The wells listed below sit in Fremont (WY), Carter (MT), Morgan (CO), Cheyenne (CO), Bent (CO) and Washakie (WY). 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 Shannon Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Sand Draw South Unit 1 | 49-013-05353 | Plugged & abandoned | Gas | Fremont, WY | Shannon Oil | 8,999 ft |
| U.S. Montana 022749 Gov't Pure 1 | 25-011-05078 | Plugged & abandoned | Other type | Carter, MT | Shannon Oil | 8,698 ft |
| 1 Karl Franke | 05-087-06559 | Plugged & abandoned | Other type | Morgan, CO | Shannon Oil Co | 6,602 ft |
| East Sand Drw 1 | 49-013-60043 | Plugged & abandoned | Other type | Fremont, WY | Shannon Oil | 6,383 ft |
| 1 Shannon-Uprr 19 | 05-017-05012 | Plugged & abandoned | Other type | Cheyenne, CO | Shannon Oil Co | 5,836 ft |
| 1 State - Fremont | 05-011-05046 | Plugged & abandoned | Other type | Bent, CO | Shannon Oil Co | 5,706 ft |
| 1 (Owp) State | 05-011-05061 | Orphaned | Other type | Bent, CO | Shannon Oil Co | 5,480 ft |
| 1 State-Fremont | 05-011-05050 | Plugged & abandoned | Other type | Bent, CO | Shannon Oil Co | 5,455 ft |
| Mt. Rogers Unit 6 | 49-013-60018 | Plugged & abandoned | Oil | Fremont, WY | Shannon Oil | 5,424 ft |
| Govt Reidy 1 | 49-043-05053 | Plugged & abandoned | Oil | Washakie, WY | Shannon Oil | 5,410 ft |
| 1 Dorothy Dillon Sapp-Federal | 05-011-05022 | Plugged & abandoned | Other type | Bent, CO | Shannon Oil Co | 5,320 ft |
| 1 Shannon-Fremont-Federal | 05-011-05023 | Plugged & abandoned | Other type | Bent, CO | Shannon Oil Co | 5,113 ft |
Deepest first where depth is published. See all 34 wells →
Frequently asked questions
How many wells does Shannon Oil operate?
Shannon Oil is the operator of record for 34 catalogued oil & gas wells, with the largest concentration in Wyoming (17). Only wells in states WellCensus has ingested are counted.
How many of Shannon Oil's wells are still active?
0 of Shannon Oil's catalogued wells are active; 29 are plugged & abandoned and 3 are flagged as orphaned.
In which states does Shannon Oil operate wells?
Shannon Oil is the operator of record for wells in Wyoming (17), Colorado (11), Kentucky (3), California (2) and Montana (1).
Does Shannon Oil operate mostly oil or gas wells?
13 of Shannon Oil's catalogued wells are oil wells and 3 are gas wells; the rest are injection, service or unclassified wells.
What is Shannon Oil's deepest well?
Among wells with a published depth, Sand Draw South Unit 1 in Fremont, WY is the deepest at 8,999 ft.
Where Shannon Oil's wells are
- Oil & gas wells in Wyoming· 17 operated by Shannon Oil
- Oil & gas wells in Colorado· 11 operated by Shannon Oil
- Oil & gas wells in Kentucky· 3 operated by Shannon Oil
- Oil & gas wells in California· 2 operated by Shannon Oil
- Oil & gas wells in Montana· 1 operated by Shannon Oil
- 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, “Shannon Oil — well portfolio”, https://wellcensus.com/operators/shannon-oil-4684 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).