Sinclair Oil
Operator of record for 70 catalogued wells across 8 states. Every well below links to its full registry page.
Filed as: SINCLAIR OIL · SINCLAIR OIL CO · SINCLAIR OIL CORP · SINCLAIR OIL CORPORATION · …
At a glance
Sinclair Oil is the operator of record for 70 catalogued U.S. oil & gas wells in 8 states. 1 (1%) are active, 62 (89%) plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Utah, with 34 wells (49% of its portfolio).
Wells operated
70
Active
1
Plugged
62
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Utah | 34 |
| Wyoming | 17 |
| Colorado | 8 |
| Kansas | 4 |
| Kentucky | 3 |
| Alabama | 2 |
| Louisiana | 1 |
| North Dakota | 1 |
Well mix
- Oil wells
- 22
- Gas wells
- 2
- Shut-in
- 0
- Active share
- 1%
Is this your company?
Claim Sinclair Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Sinclair Oil operate?
Sinclair Oil's catalogued wells are spread across 8 states: Utah (34), Wyoming (17), Colorado (8), Kansas (4) and Kentucky (3) and 3 more. Its 34 Utah wells are 0.1% of the 40,139 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 Oil’s wells are active, plugged or orphaned?
1% of Sinclair Oil's catalogued wells are active, 27 percentage points below the national share of 29%. 89% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Sinclair Oil operate?
By product class, 22 (31%) are oil wells and 2 (3%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Blue Gap Ii 12-17-15-93 in Carbon, WY at 11,242 ft. The wells listed below sit in Carbon (WY), Converse (WY), Fremont (WY), Prowers (CO) and Clark (KS). State filings spell the name 6 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Sinclair Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Blue Gap Ii 12-17-15-93 | 49-007-20538 | Plugged & abandoned | Oil | Carbon, WY | Sinclair Oil Corporation | 11,242 ft |
| Federal 2-21 | 49-009-22421 | Plugged & abandoned | Oil | Converse, WY | Sinclair Oil Corporation | 10,186 ft |
| Sinclair-Federal 1-9 | 49-013-20630 | Plugged & abandoned | Oil | Fremont, WY | Sinclair Oil Corporation | 8,634 ft |
| Hamilton 15-1 | 49-007-20305 | Plugged & abandoned | Gas | Carbon, WY | Sinclair Oil Corporation | 7,982 ft |
| Federal 42-19 | 49-013-21013 | Plugged & abandoned | Oil | Fremont, WY | Sinclair Oil Corporation | 7,912 ft |
| Uprc 5-21 | 49-007-21458 | Plugged & abandoned | Oil | Carbon, WY | Sinclair Oil Corporation | 7,026 ft |
| 13-29 Hadson-Lowe | 05-099-06333 | Plugged & abandoned | Other type | Prowers, CO | Sinclair Oil Corp | 5,830 ft |
| 4-19 Hadson-Campbell | 05-099-06324 | Plugged & abandoned | Other type | Prowers, CO | Sinclair Oil Corp | 5,717 ft |
| 7-13 Hadson-Heck | 05-099-06312 | Plugged & abandoned | Other type | Prowers, CO | Sinclair Oil Corp | 5,660 ft |
| 4-18 Hadson-Neil | 05-099-06323 | Plugged & abandoned | Other type | Prowers, CO | Sinclair Oil Corp | 5,626 ft |
| Schumacker 1 | 15-025-10118 | Plugged & abandoned | Other type | Clark, KS | Sinclair Oil Corporation | 5,605 ft |
| Federal 11-24 | 49-007-21374 | Plugged & abandoned | Oil | Carbon, WY | Sinclair Oil Corporation | 5,570 ft |
Deepest first where depth is published. See all 70 wells →
Frequently asked questions
How many wells does Sinclair Oil operate?
Sinclair Oil is the operator of record for 70 catalogued oil & gas wells, with the largest concentration in Utah (34). Only wells in states WellCensus has ingested are counted.
How many of Sinclair Oil's wells are still active?
1 of Sinclair Oil's catalogued wells are active; 62 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Sinclair Oil operate wells?
Sinclair Oil is the operator of record for wells in Utah (34), Wyoming (17), Colorado (8), Kansas (4), Kentucky (3), Alabama (2), Louisiana (1) and North Dakota (1).
Does Sinclair Oil operate mostly oil or gas wells?
22 of Sinclair Oil's catalogued wells are oil wells and 2 are gas wells; the rest are injection, service or unclassified wells.
What is Sinclair Oil's deepest well?
Among wells with a published depth, Blue Gap Ii 12-17-15-93 in Carbon, WY is the deepest at 11,242 ft.
Where Sinclair Oil's wells are
- Oil & gas wells in Utah· 34 operated by Sinclair Oil
- Oil & gas wells in Wyoming· 17 operated by Sinclair Oil
- Oil & gas wells in Colorado· 8 operated by Sinclair Oil
- Oil & gas wells in Kansas· 4 operated by Sinclair Oil
- Oil & gas wells in Kentucky· 3 operated by Sinclair Oil
- Oil & gas wells in Alabama· 2 operated by Sinclair Oil
- Largest U.S. well operators
- All well operators
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 Oil — well portfolio”, https://wellcensus.com/operators/sinclair-oil-6693 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).