Mammoth Petroleum
Operator of record for 18 catalogued wells across 1 state. Every well below links to its full registry page.
Filed as: MAMMOTH PETROLEUM INC · MAMMOTH PETROLEUM, INC
At a glance
Mammoth Petroleum is the operator of record for 18 catalogued U.S. oil & gas wells in 1 state. 5 (28%) are active, 1 (6%) plugged & abandoned and 10 flagged as orphaned. Its largest concentration is in Kentucky, with 18 wells (100% of its portfolio).
Wells operated
18
Active
5
Plugged
1
Orphaned
10
Portfolio by state
| State | Wells |
|---|---|
| Kentucky | 18 |
Well mix
- Oil wells
- 0
- Gas wells
- 14
- Shut-in
- 0
- Active share
- 28%
Is this your company?
Claim Mammoth Petroleum to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Mammoth Petroleum operate?
Mammoth Petroleum's catalogued wells are spread across 1 state: Kentucky (18). Its 18 Kentucky wells are 0.0% 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 Mammoth Petroleum’s wells are active, plugged or orphaned?
28% of Mammoth Petroleum's catalogued wells are active, close to the national share of 29%. 6% are plugged & abandoned, against 47% nationally. 10 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Mammoth Petroleum operate?
By product class, 0 (0%) are oil wells and 14 (78%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Gentry, Clarence 1 in Metcalfe, KY at 1,660 ft. The wells listed below sit in Metcalfe (KY), Barren (KY) and Meade (KY). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Mammoth Petroleum
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Gentry, Clarence 1 | 16-169-00458 | Orphaned | Gas | Metcalfe, KY | Mammoth Petroleum, Inc | 1,660 ft |
| Rich, Bennett 1 | 16-169-00459 | Orphaned | Gas | Metcalfe, KY | Mammoth Petroleum, Inc | 1,658 ft |
| Goode, Margret 1 | 16-009-00434 | Orphaned | Gas | Barren, KY | Mammoth Petroleum, Inc | 1,450 ft |
| Mcmillin, A C 1 | 16-169-00375 | Orphaned | Gas | Metcalfe, KY | Mammoth Petroleum, Inc | 1,284 ft |
| Greer, Ewell 1 | 16-009-00412 | Orphaned | Gas | Barren, KY | Mammoth Petroleum, Inc | 1,251 ft |
| Christie, Jack 1 | 16-009-00427 | Active | Gas | Barren, KY | Mammoth Petroleum, Inc | 1,250 ft |
| Reece, Orville 1 | 16-009-00413 | Plugged & abandoned | Gas | Barren, KY | Mammoth Petroleum, Inc | 1,000 ft |
| Padgett, David 1 | 16-163-00012 | Active | Gas | Meade, KY | Mammoth Petroleum, Inc | 895 ft |
| Padgett, Leo 2 | 16-163-00014 | Active | Gas | Meade, KY | Mammoth Petroleum, Inc | 844 ft |
| Brown, J Dean 1 | 16-163-00013 | Active | Gas | Meade, KY | Mammoth Petroleum, Inc | 840 ft |
| Viers, W O 3 | 16-163-00015 | Active | Gas | Meade, KY | Mammoth Petroleum, Inc | 820 ft |
| Greer, Ewell 1a | 16-009-00071 | Orphaned | Gas | Barren, KY | Mammoth Petroleum, Inc | 730 ft |
Deepest first where depth is published. See all 18 wells →
Frequently asked questions
How many wells does Mammoth Petroleum operate?
Mammoth Petroleum is the operator of record for 18 catalogued oil & gas wells, with the largest concentration in Kentucky (18). Only wells in states WellCensus has ingested are counted.
How many of Mammoth Petroleum's wells are still active?
5 of Mammoth Petroleum's catalogued wells are active; 1 are plugged & abandoned and 10 are flagged as orphaned.
In which states does Mammoth Petroleum operate wells?
Mammoth Petroleum is the operator of record for wells in Kentucky (18).
Does Mammoth Petroleum operate mostly oil or gas wells?
0 of Mammoth Petroleum's catalogued wells are oil wells and 14 are gas wells; the rest are injection, service or unclassified wells.
What is Mammoth Petroleum's deepest well?
Among wells with a published depth, Gentry, Clarence 1 in Metcalfe, KY is the deepest at 1,660 ft.
Where Mammoth 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 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Mammoth Petroleum — well portfolio”, https://wellcensus.com/operators/mammoth-petroleum-67478 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).