Cleary Petroleum
Operator of record for 86 catalogued wells across 11 states. Every well below links to its full registry page.
Filed as: CLEARY PETROLEUM CORP. · CLEARY PETROLEUM CORPORATION · CLEARY PETROLEUM INC · Cleary Petroleum · …
At a glance
Cleary Petroleum is the operator of record for 86 catalogued U.S. oil & gas wells in 11 states. 1 (1%) are active, 79 (92%) plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in Oklahoma, with 25 wells (29% of its portfolio).
Wells operated
86
Active
1
Plugged
79
Orphaned
2
Portfolio by state
| State | Wells |
|---|---|
| Oklahoma | 25 |
| Alabama | 24 |
| Illinois | 8 |
| Kansas | 7 |
| Mississippi | 6 |
| North Dakota | 5 |
| Montana | 4 |
| Louisiana | 3 |
| California | 2 |
| Colorado | 1 |
| Utah | 1 |
Well mix
- Oil wells
- 11
- Gas wells
- 16
- Shut-in
- 0
- Active share
- 1%
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Claim your operator profileWhere does Cleary Petroleum operate?
Cleary Petroleum's catalogued wells are spread across 11 states: Oklahoma (25), Alabama (24), Illinois (8), Kansas (7) and Mississippi (6) and 6 more. Its 24 Alabama wells are 0.2% of the 15,091 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 Cleary Petroleum’s wells are active, plugged or orphaned?
1% of Cleary Petroleum's catalogued wells are active, 28 percentage points below the national share of 29%. 92% are plugged & abandoned, against 47% nationally. 2 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Cleary Petroleum operate?
By product class, 11 (13%) are oil wells and 16 (19%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is 6-4-47-19 Bedrock Unit in Montrose, CO at 14,421 ft. The wells listed below sit in Montrose (CO), Plaquemines (LA), Vermilion (LA), Calhoun (MS), Ward (ND) and Morton (KS) and other counties. State filings spell the name 7 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Cleary Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 6-4-47-19 Bedrock Unit | 05-085-06045 | Plugged & abandoned | Other type | Montrose, CO | Cleary Petroleum Corporation | 14,421 ft |
| H J Ansardi 001 | 17-075-20986 | Plugged & abandoned | Other type | Plaquemines, LA | Cleary Petroleum Corporation | 12,914 ft |
| John Vigneaux 001 | 17-113-20337 | Plugged & abandoned | Other type | Vermilion, LA | Cleary Petroleum Corporation | 11,825 ft |
| Delma Meaux 001 | 17-113-20316 | Orphaned | Other type | Vermilion, LA | Cleary Petroleum Corporation | 11,750 ft |
| Murphree 1-33 1-33 | 23-013-20004 | Plugged & abandoned | Other type | Calhoun, MS | Cleary Petroleum Corporation | 6,503 ft |
| Shelkey 1-28 | 33-101-00174 | Plugged & abandoned | Oil | Ward, ND | Cleary Petroleum Corp. | 6,500 ft |
| Klimpel 1-15 | 33-101-00173 | Plugged & abandoned | Oil | Ward, ND | Cleary Petroleum Corp. | 5,558 ft |
| Sipes 1 | 15-129-30091 | Plugged & abandoned | Other type | Morton, KS | Cleary Petroleum Corporation | 5,439 ft |
| Woolsey 1-8 | 15-007-22606 | Active | Gas | Barber, KS | Cleary Petroleum Corporation | 5,225 ft |
| Avery 1-1 | 33-101-00176 | Plugged & abandoned | Oil | Ward, ND | Cleary Petroleum Corp. | 4,929 ft |
| Wilson 1-8 | 33-101-00178 | Plugged & abandoned | Oil | Ward, ND | Cleary Petroleum Corp. | 4,820 ft |
| Carr 1-25 | 33-009-01144 | Plugged & abandoned | Oil | Bottineau, ND | Cleary Petroleum Corp. | 4,775 ft |
Deepest first where depth is published. See all 86 wells →
Frequently asked questions
How many wells does Cleary Petroleum operate?
Cleary Petroleum is the operator of record for 86 catalogued oil & gas wells, with the largest concentration in Oklahoma (25). Only wells in states WellCensus has ingested are counted.
How many of Cleary Petroleum's wells are still active?
1 of Cleary Petroleum's catalogued wells are active; 79 are plugged & abandoned and 2 are flagged as orphaned.
In which states does Cleary Petroleum operate wells?
Cleary Petroleum is the operator of record for wells in Oklahoma (25), Alabama (24), Illinois (8), Kansas (7), Mississippi (6), North Dakota (5), Montana (4), Louisiana (3), California (2), Colorado (1) and Utah (1).
Does Cleary Petroleum operate mostly oil or gas wells?
11 of Cleary Petroleum's catalogued wells are oil wells and 16 are gas wells; the rest are injection, service or unclassified wells.
What is Cleary Petroleum's deepest well?
Among wells with a published depth, 6-4-47-19 Bedrock Unit in Montrose, CO is the deepest at 14,421 ft.
Where Cleary Petroleum's wells are
- Oil & gas wells in Oklahoma· 25 operated by Cleary Petroleum
- Oil & gas wells in Alabama· 24 operated by Cleary Petroleum
- Oil & gas wells in Illinois· 8 operated by Cleary Petroleum
- Oil & gas wells in Kansas· 7 operated by Cleary Petroleum
- Oil & gas wells in Mississippi· 6 operated by Cleary Petroleum
- Oil & gas wells in North Dakota· 5 operated by Cleary Petroleum
- Largest U.S. well operators
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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, “Cleary Petroleum — well portfolio”, https://wellcensus.com/operators/cleary-petroleum-494 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).