International Nuclear
Operator of record for 115 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: INTERNATIONAL NUCLEAR CORP. · INTERNATIONAL NUCLEAR CORPORATION · International Nuclear Corp.
At a glance
International Nuclear is the operator of record for 115 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 111 (97%) are plugged & abandoned. Its largest concentration is in North Dakota, with 66 wells (57% of its portfolio).
Wells operated
115
Active
0
Plugged
111
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| North Dakota | 66 |
| Montana | 33 |
| Colorado | 16 |
Well mix
- Oil wells
- 67
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim International Nuclear to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does International Nuclear operate?
International Nuclear's catalogued wells are spread across 3 states: North Dakota (66), Montana (33) and Colorado (16). Its 66 North Dakota wells are 0.2% of the 43,680 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 International Nuclear’s wells are active, plugged or orphaned?
0% of International Nuclear's catalogued wells are active, 29 percentage points below the national share of 29%. 97% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does International Nuclear operate?
By product class, 67 (58%) 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 Stewart 1-63 in Bowman, ND at 10,111 ft. The wells listed below sit in Bowman (ND), Big Horn (MT), Sheridan (MT), Rosebud (MT), Cheyenne (CO) and Slope (ND) and other counties. State filings spell the name 3 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by International Nuclear
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Stewart 1-63 | 33-011-00149 | Plugged & abandoned | Oil | Bowman, ND | International Nuclear Corp. | 10,111 ft |
| John M. Susa Etal 1-61 | 33-011-00146 | Plugged & abandoned | Oil | Bowman, ND | International Nuclear Corp. | 9,862 ft |
| M-9764-68 State Mel 1 | 25-003-21023 | Plugged & abandoned | Other type | Big Horn, MT | International Nuclear Corp. | 8,434 ft |
| State Mtn. Minerals 9766-68 1 | 25-003-21043 | Plugged & abandoned | Other type | Big Horn, MT | International Nuclear Corp. | 8,340 ft |
| Anderson 1 | 25-091-21063 | Plugged & abandoned | Other type | Sheridan, MT | International Nuclear Corp. | 7,045 ft |
| Govt-Becker 1 | 25-087-21044 | Plugged & abandoned | Other type | Rosebud, MT | International Nuclear Corp. | 6,913 ft |
| 1 Pfeifer | 05-017-06082 | Plugged & abandoned | Other type | Cheyenne, CO | International Nuclear Corporation | 5,880 ft |
| Roen 1-13 | 33-087-00042 | Plugged & abandoned | Oil | Slope, ND | International Nuclear Corp. | 5,800 ft |
| 1 Neidig | 05-063-06018 | Plugged & abandoned | Other type | Kit Carson, CO | International Nuclear Corporation | 5,781 ft |
| 1 Coryell | 05-063-06017 | Plugged & abandoned | Other type | Kit Carson, CO | International Nuclear Corporation | 5,763 ft |
| 1 Penny Land Company | 05-063-06016 | Plugged & abandoned | Other type | Kit Carson, CO | International Nuclear Corporation | 5,700 ft |
| 1 Bell | 05-063-06019 | Plugged & abandoned | Other type | Kit Carson, CO | International Nuclear Corporation | 5,682 ft |
Deepest first where depth is published. See all 115 wells →
Frequently asked questions
How many wells does International Nuclear operate?
International Nuclear is the operator of record for 115 catalogued oil & gas wells, with the largest concentration in North Dakota (66). Only wells in states WellCensus has ingested are counted.
How many of International Nuclear's wells are still active?
0 of International Nuclear's catalogued wells are active; 111 are plugged & abandoned.
In which states does International Nuclear operate wells?
International Nuclear is the operator of record for wells in North Dakota (66), Montana (33) and Colorado (16).
Does International Nuclear operate mostly oil or gas wells?
67 of International Nuclear's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is International Nuclear's deepest well?
Among wells with a published depth, Stewart 1-63 in Bowman, ND is the deepest at 10,111 ft.
Where International Nuclear'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, “International Nuclear — well portfolio”, https://wellcensus.com/operators/international-nuclear-8827 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).