Columbia Petroleum
Operator of record for 21 catalogued wells across 4 states. Every well below links to its full registry page.
Filed as: COLUMBIA PETROLEUM CORP. · COLUMBIA PETROLEUM LLC · Columbia Petroleum, Inc. · Columbia Petroleum, Ltd.
At a glance
Columbia Petroleum is the operator of record for 21 catalogued U.S. oil & gas wells in 4 states. 2 (10%) are active, 16 (76%) plugged & abandoned. Its largest concentration is in Montana, with 9 wells (43% of its portfolio).
Wells operated
21
Active
2
Plugged
16
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 9 |
| Louisiana | 8 |
| Mississippi | 3 |
| Kansas | 1 |
Well mix
- Oil wells
- 9
- Gas wells
- 7
- Shut-in
- 1
- Active share
- 10%
Is this your company?
Claim Columbia Petroleum to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Columbia Petroleum operate?
Columbia Petroleum's catalogued wells are spread across 4 states: Montana (9), Louisiana (8), Mississippi (3) and Kansas (1). Its 9 Montana wells are 0.0% of the 42,011 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 (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Columbia Petroleum’s wells are active, plugged or orphaned?
10% of Columbia Petroleum's catalogued wells are active, 21 percentage points below the national share of 30%. 76% are plugged & abandoned, against 48% nationally. 1 wells (5%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Columbia Petroleum operate?
By product class, 9 (43%) are oil wells and 7 (33%) gas wells; nationally the shares are 45% and 18%. The deepest of its wells with a published depth is Harrell-Smith Unit 1-12 1 1 in Jefferson, MS at 16,500 ft. The wells listed below sit in Jefferson (MS), Simpson (MS), Lincoln (MS), De Soto (LA), Richland (LA) and Petroleum (MT). State filings spell the name 4 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Columbia Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Harrell-Smith Unit 1-12 1 1 | 23-063-20336 | Plugged & abandoned | Oil | Jefferson, MS | Columbia Petroleum LLC | 16,500 ft |
| Mangum 2-1 1 1 | 23-127-20083 | Plugged & abandoned | Gas | Simpson, MS | Columbia Petroleum LLC | 14,455 ft |
| Nick Ross 19-11 1 1 | 23-085-20301 | Plugged & abandoned | Oil | Lincoln, MS | Columbia Petroleum LLC | 10,600 ft |
| Griffith 001 | 17-031-20291 | Plugged & abandoned | Gas | De Soto, LA | Columbia Petroleum Corp. | 5,294 ft |
| Nsu G; Hood 001 | 17-031-20250 | Plugged & abandoned | Gas | De Soto, LA | Columbia Petroleum Corp. | 4,000 ft |
| Plxy H Sud; Kidd 001 | 17-031-20216 | Plugged & abandoned | Gas | De Soto, LA | Columbia Petroleum Corp. | 3,951 ft |
| John Wells 24 001 | 17-083-21038 | Plugged & abandoned | Other type | Richland, LA | Columbia Petroleum LLC | 3,600 ft |
| Paul Wells 24-8 001 | 17-083-21036 | Plugged & abandoned | Other type | Richland, LA | Columbia Petroleum LLC | 3,600 ft |
| Lawrence 002 | 17-031-20265 | Plugged & abandoned | Gas | De Soto, LA | Columbia Petroleum Corp. | 3,552 ft |
| Kidd-Humbert 002 | 17-031-20229 | Plugged & abandoned | Gas | De Soto, LA | Columbia Petroleum Corp. | 3,267 ft |
| Kidd 003 | 17-031-20274 | Plugged & abandoned | Gas | De Soto, LA | Columbia Petroleum Corp. | 3,065 ft |
| Columbia 1 | 25-069-21023 | Plugged & abandoned | Other type | Petroleum, MT | Columbia Petroleum, Ltd. | 2,168 ft |
Deepest first where depth is published. See all 21 wells →
Frequently asked questions
How many wells does Columbia Petroleum operate?
Columbia Petroleum is the operator of record for 21 catalogued oil & gas wells, with the largest concentration in Montana (9). Only wells in states WellCensus has ingested are counted.
How many of Columbia Petroleum's wells are still active?
2 of Columbia Petroleum's catalogued wells are active; 16 are plugged & abandoned.
In which states does Columbia Petroleum operate wells?
Columbia Petroleum is the operator of record for wells in Montana (9), Louisiana (8), Mississippi (3) and Kansas (1).
Does Columbia Petroleum operate mostly oil or gas wells?
9 of Columbia Petroleum's catalogued wells are oil wells and 7 are gas wells; the rest are injection, service or unclassified wells.
What is Columbia Petroleum's deepest well?
Among wells with a published depth, Harrell-Smith Unit 1-12 1 1 in Jefferson, MS is the deepest at 16,500 ft.
Where Columbia Petroleum'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 28, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Columbia Petroleum — well portfolio”, https://wellcensus.com/operators/columbia-petroleum-82107 (data as of October 28, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).