Leonard Oil
Operator of record for 54 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: LEONARD OIL CO · LEONARD OIL INC · Leonard Oil Inc
At a glance
Leonard Oil is the operator of record for 54 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 7 (13%) are plugged & abandoned. Its largest concentration is in Michigan, with 51 wells (94% of its portfolio).
Wells operated
54
Active
0
Plugged
7
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Michigan | 51 |
| Wyoming | 2 |
| Illinois | 1 |
Well mix
- Oil wells
- 2
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Leonard Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Leonard Oil operate?
Leonard Oil's catalogued wells are spread across 3 states: Michigan (51), Wyoming (2) and Illinois (1). Its 51 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 Leonard Oil’s wells are active, plugged or orphaned?
0% of Leonard Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 13% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Leonard Oil operate?
By product class, 2 (4%) 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 Govt 1 in Park, WY at 4,507 ft. The wells listed below sit in Park (WY), Missaukee (MI), Clare (MI), Wexford (MI), Osceola (MI) and Washtenaw (MI) 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 Leonard Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Govt 1 | 49-029-05605 | Plugged & abandoned | Oil | Park, WY | Leonard Oil Co | 4,507 ft |
| State Holland 1 | 21-113-25286 | Other status | Other type | Missaukee, MI | Leonard Oil Inc | 4,273 ft |
| Telder, Beatrice G Et Al 1 | 21-035-19584 | Other status | Other type | Clare, MI | Leonard Oil Inc | 4,126 ft |
| Meekhof, George & Clarice 1 | 21-113-22393 | Other status | Other type | Missaukee, MI | Leonard Oil Inc | 4,089 ft |
| Felder, Dewey B & Clifford M 1 | 21-113-14390 | Other status | Other type | Missaukee, MI | Leonard Oil Inc | 4,078 ft |
| Mattison, Devere D Et Ux 1 | 21-165-21858 | Other status | Other type | Wexford, MI | Leonard Oil Inc | 4,071 ft |
| Gibbs, Helen & Gene 1 | 21-113-23301 | Other status | Other type | Missaukee, MI | Leonard Oil Inc | 4,041 ft |
| Knickerbocker, Fay Et Al 1 | 21-133-26619 | Other status | Other type | Osceola, MI | Leonard Oil Inc | 4,021 ft |
| Bronkema, Harriet 1 | 21-113-26448 | Other status | Other type | Missaukee, MI | Leonard Oil Inc | 3,994 ft |
| Rountree, William H Et Ux 1 | 21-133-22981 | Other status | Other type | Osceola, MI | Leonard Oil Inc | 3,943 ft |
| Schwocho, George E & Rose 1 | 21-161-26856 | Other status | Other type | Washtenaw, MI | Leonard Oil Inc | 3,934 ft |
| Gethek, Leon & Beatrice 3 | 21-051-13306 | Other status | Other type | Gladwin, MI | Leonard Oil Inc | 3,918 ft |
Deepest first where depth is published. See all 54 wells →
Frequently asked questions
How many wells does Leonard Oil operate?
Leonard Oil is the operator of record for 54 catalogued oil & gas wells, with the largest concentration in Michigan (51). Only wells in states WellCensus has ingested are counted.
How many of Leonard Oil's wells are still active?
0 of Leonard Oil's catalogued wells are active; 7 are plugged & abandoned.
In which states does Leonard Oil operate wells?
Leonard Oil is the operator of record for wells in Michigan (51), Wyoming (2) and Illinois (1).
Does Leonard Oil operate mostly oil or gas wells?
2 of Leonard Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Leonard Oil's deepest well?
Among wells with a published depth, Govt 1 in Park, WY is the deepest at 4,507 ft.
Where Leonard Oil'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, “Leonard Oil — well portfolio”, https://wellcensus.com/operators/leonard-oil-34918 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).