Wellstar
Operator of record for 99 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: WELLSTAR CORPORATION · Wellstar Corporation
At a glance
Wellstar is the operator of record for 99 catalogued U.S. oil & gas wells in 3 states. 18 (18%) are active, 37 (37%) plugged & abandoned. Its largest concentration is in Wyoming, with 84 wells (85% of its portfolio).
Wells operated
99
Active
18
Plugged
37
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 84 |
| Colorado | 8 |
| Kansas | 7 |
Well mix
- Oil wells
- 59
- Gas wells
- 2
- Shut-in
- 22
- Active share
- 18%
Is this your company?
Claim Wellstar to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Wellstar operate?
Wellstar's catalogued wells are spread across 3 states: Wyoming (84), Colorado (8) and Kansas (7). Its 84 Wyoming wells are 0.1% of the 129,957 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 Wellstar’s wells are active, plugged or orphaned?
18% of Wellstar's catalogued wells are active, 11 percentage points below the national share of 29%. 37% are plugged & abandoned, against 47% nationally. 22 wells (22%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Wellstar operate?
By product class, 59 (60%) are oil wells and 2 (2%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Porath A 1-A in Johnson, WY at 12,785 ft. The wells listed below sit in Johnson (WY) and Campbell (WY). 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 Wellstar
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Porath A 1-A | 49-019-20547 | Plugged & abandoned | Oil | Johnson, WY | Wellstar Corporation | 12,785 ft |
| Fort Reno W-0314490 10-2 | 49-019-20756 | Active | Oil | Johnson, WY | Wellstar Corporation | 12,706 ft |
| Nipple Ii W-0314490 10-Dx7 | 49-019-20688 | Shut-in | Oil | Johnson, WY | Wellstar Corporation | 11,752 ft |
| Federal 13x-8a | 49-005-25958 | Plugged & abandoned | Oil | Campbell, WY | Wellstar Corporation | 11,550 ft |
| Maystick 8-5 | 49-005-29766 | Plugged & abandoned | Injection | Campbell, WY | Wellstar Corporation | 11,400 ft |
| Morgan 43x-11 | 49-005-27078 | Shut-in | Injection | Campbell, WY | Wellstar Corporation | 10,951 ft |
| Breen 14-12a | 49-005-06395 | Active | Oil | Campbell, WY | Wellstar Corporation | 10,915 ft |
| Breen 22x-14 | 49-005-30580 | Shut-in | Injection | Campbell, WY | Wellstar Corporation | 10,907 ft |
| Breen Wiw Unit 11x-13 | 49-005-30912 | Other status | Injection | Campbell, WY | Wellstar Corporation | 10,895 ft |
| Breen 22-13 | 49-005-22352 | Active | Oil | Campbell, WY | Wellstar Corporation | 10,860 ft |
| Breen Wiw 33x-13 | 49-005-30578 | Other status | Injection | Campbell, WY | Wellstar Corporation | 10,840 ft |
| Duvall 4-19 | 49-005-28847 | Active | Oil | Campbell, WY | Wellstar Corporation | 10,839 ft |
Deepest first where depth is published. See all 99 wells →
Frequently asked questions
How many wells does Wellstar operate?
Wellstar is the operator of record for 99 catalogued oil & gas wells, with the largest concentration in Wyoming (84). Only wells in states WellCensus has ingested are counted.
How many of Wellstar's wells are still active?
18 of Wellstar's catalogued wells are active; 37 are plugged & abandoned.
In which states does Wellstar operate wells?
Wellstar is the operator of record for wells in Wyoming (84), Colorado (8) and Kansas (7).
Does Wellstar operate mostly oil or gas wells?
59 of Wellstar's catalogued wells are oil wells and 2 are gas wells; the rest are injection, service or unclassified wells.
What is Wellstar's deepest well?
Among wells with a published depth, Porath A 1-A in Johnson, WY is the deepest at 12,785 ft.
Where Wellstar'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, “Wellstar — well portfolio”, https://wellcensus.com/operators/wellstar-4484 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).