Mammoth Producing And Refining
Operator of record for 46 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Mammoth Producing And Refining is the operator of record for 46 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 1 (2%) are plugged & abandoned. Its largest concentration is in Michigan, with 46 wells (100% of its portfolio).
Wells operated
46
Active
0
Plugged
1
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Michigan | 46 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Mammoth Producing And Refining operate?
Mammoth Producing And Refining's catalogued wells are spread across 1 state: Michigan (46). Its 46 Michigan wells are 0.1% of the 85,673 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 Producing And Refining’s wells are active, plugged or orphaned?
0% of Mammoth Producing And Refining's catalogued wells are active, 29 percentage points below the national share of 29%. 2% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Mammoth Producing And Refining operate?
By product class, 0 (0%) 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 Oard Boyd 1 in Gladwin, MI at 4,330 ft. The wells listed below sit in Gladwin (MI), Clare (MI), Midland (MI) and Isabella (MI).
Notable wells operated by Mammoth Producing And Refining
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Oard Boyd 1 | 21-051-04197 | Other status | Other type | Gladwin, MI | Mammoth Producing And Refining Corp | 4,330 ft |
| Nunn, R. 1 | 21-051-04405 | Other status | Other type | Gladwin, MI | Mammoth Producing And Refining Corp | 4,095 ft |
| Bothwell Heirs 1 | 21-035-00824 | Other status | Other type | Clare, MI | Mammoth Producing And Refining Corp | 4,092 ft |
| Mellinger Abbie 1 | 21-051-02936 | Other status | Other type | Gladwin, MI | Mammoth Producing And Refining Corp | 3,997 ft |
| Penny, Lindsay A 1 | 21-111-04430 | Plugged & abandoned | Other type | Midland, MI | Mammoth Producing And Refining Corp | 3,978 ft |
| Ricket, Ralph W 1-2 | 21-111-04926 | Other status | Other type | Midland, MI | Mammoth Producing And Refining Corp | 3,816 ft |
| Higgins Et Al 1 | 21-111-04823 | Other status | Other type | Midland, MI | Mammoth Producing And Refining Corp | 3,815 ft |
| Higgins Et Al 2 | 21-111-04832 | Other status | Other type | Midland, MI | Mammoth Producing And Refining Corp | 3,806 ft |
| Caplan, Zola 1 | 21-111-04947 | Other status | Other type | Midland, MI | Mammoth Producing And Refining Corp | 3,788 ft |
| Caplan, Zola 4 | 21-111-04964 | Other status | Other type | Midland, MI | Mammoth Producing And Refining Corp | 3,784 ft |
| Stough, Decourcy, & Citizens State Bank 1 | 21-073-01703 | Other status | Other type | Isabella, MI | Mammoth Producing And Refining Corp | 3,772 ft |
| Schug, Julius & Caroline 4 | 21-073-01648 | Other status | Other type | Isabella, MI | Mammoth Producing And Refining Corp | 3,762 ft |
Deepest first where depth is published. See all 46 wells →
Frequently asked questions
How many wells does Mammoth Producing And Refining operate?
Mammoth Producing And Refining is the operator of record for 46 catalogued oil & gas wells, with the largest concentration in Michigan (46). Only wells in states WellCensus has ingested are counted.
How many of Mammoth Producing And Refining's wells are still active?
0 of Mammoth Producing And Refining's catalogued wells are active; 1 are plugged & abandoned.
In which states does Mammoth Producing And Refining operate wells?
Mammoth Producing And Refining is the operator of record for wells in Michigan (46).
Does Mammoth Producing And Refining operate mostly oil or gas wells?
0 of Mammoth Producing And Refining's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Mammoth Producing And Refining's deepest well?
Among wells with a published depth, Oard Boyd 1 in Gladwin, MI is the deepest at 4,330 ft.
Where Mammoth Producing And Refining'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 Producing And Refining — well portfolio”, https://wellcensus.com/operators/mammoth-producing-and-refining-119147 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).