Sinclair Wyoming Oil
Operator of record for 9 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: SINCLAIR WYOMING OIL CO · Sinclair Wyoming Oil Co.
At a glance
Sinclair Wyoming Oil is the operator of record for 9 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 6 (67%) are plugged & abandoned. Its largest concentration is in Illinois, with 6 wells (67% of its portfolio).
Wells operated
9
Active
0
Plugged
6
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 6 |
| Michigan | 3 |
Well mix
- Oil wells
- 1
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Sinclair Wyoming Oil operate?
Sinclair Wyoming Oil's catalogued wells are spread across 2 states: Illinois (6) and Michigan (3). Its 3 Michigan wells are 0.0% 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 Sinclair Wyoming Oil’s wells are active, plugged or orphaned?
0% of Sinclair Wyoming Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 67% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Sinclair Wyoming Oil operate?
By product class, 1 (11%) 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 Vaughn, Thad 1 in Oceana, MI at 3,400 ft. The wells listed below sit in Oceana (MI), Huron (MI), Hamilton (IL), White (IL), Lapeer (MI) and Lawrence (IL). 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 Sinclair Wyoming Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Vaughn, Thad 1 | 21-127-11129 | Other status | Other type | Oceana, MI | Sinclair Wyoming Oil Co | 3,400 ft |
| Rink, Theodore 1 | 21-063-10510 | Other status | Other type | Huron, MI | Sinclair Wyoming Oil Co | 3,378 ft |
| Hall, Minnie F. 9 | 12-065-00058 | Plugged & abandoned | Injection | Hamilton, IL | Sinclair Wyoming Oil Co. | 3,285 ft |
| Stelle, John H. 4 | 12-065-00188 | Plugged & abandoned | Oil | Hamilton, IL | Sinclair Wyoming Oil Co. | 3,084 ft |
| Friel, Mary E. 5-B | 12-065-00204 | Plugged & abandoned | Injection | Hamilton, IL | Sinclair Wyoming Oil Co. | 2,990 ft |
| Donald, Mary S. 12 | 12-193-04608 | Plugged & abandoned | Other type | White, IL | Sinclair Wyoming Oil Co. | 2,983 ft |
| Mcintyre, George 1 | 21-087-10936 | Other status | Other type | Lapeer, MI | Sinclair Wyoming Oil Co | 2,783 ft |
| All States Life Ins. Co. 7 | 12-101-03088 | Plugged & abandoned | Injection | Lawrence, IL | Sinclair Wyoming Oil Co. | 1,772 ft |
| All States Life Ins. 2 | 12-101-00044 | Plugged & abandoned | Injection | Lawrence, IL | Sinclair Wyoming Oil Co. | 1,769 ft |
Deepest first where depth is published. See all 9 wells →
Frequently asked questions
How many wells does Sinclair Wyoming Oil operate?
Sinclair Wyoming Oil is the operator of record for 9 catalogued oil & gas wells, with the largest concentration in Illinois (6). Only wells in states WellCensus has ingested are counted.
How many of Sinclair Wyoming Oil's wells are still active?
0 of Sinclair Wyoming Oil's catalogued wells are active; 6 are plugged & abandoned.
In which states does Sinclair Wyoming Oil operate wells?
Sinclair Wyoming Oil is the operator of record for wells in Illinois (6) and Michigan (3).
Does Sinclair Wyoming Oil operate mostly oil or gas wells?
1 of Sinclair Wyoming Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Sinclair Wyoming Oil's deepest well?
Among wells with a published depth, Vaughn, Thad 1 in Oceana, MI is the deepest at 3,400 ft.
Where Sinclair Wyoming 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, “Sinclair Wyoming Oil — well portfolio”, https://wellcensus.com/operators/sinclair-wyoming-oil-100598 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).