Zajic William E
Operator of record for 10 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Zajic William E is the operator of record for 10 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 7 (70%) are plugged & abandoned. Its largest concentration is in Colorado, with 10 wells (100% of its portfolio).
Wells operated
10
Active
0
Plugged
7
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 10 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Zajic William E operate?
Zajic William E's catalogued wells are spread across 1 state: Colorado (10). Its 10 Colorado wells are 0.0% of the 124,327 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 Zajic William E’s wells are active, plugged or orphaned?
0% of Zajic William E's catalogued wells are active, 29 percentage points below the national share of 29%. 70% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Zajic William E 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 3-9 State in Prowers, CO at 5,313 ft.
Notable wells operated by Zajic William E
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 3-9 State | 05-099-06126 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | 5,313 ft |
| 1-28 Mcmillin | 05-099-06158 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | 5,299 ft |
| 1-5 Mccall | 05-099-06177 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | 5,252 ft |
| 5-9 State | 05-099-06161 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | 4,931 ft |
| 1-29 Nevius | 05-099-06172 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | 4,924 ft |
| 1-27 Mcmillan | 05-099-06173 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | 4,888 ft |
| 5-8 Schmidt | 05-099-06167 | Other status | Other type | Prowers, CO | Zajic* William E | — |
| 4-8 State | 05-099-06155 | Other status | Other type | Prowers, CO | Zajic* William E | — |
| 1 State | 05-099-06099 | Other status | Other type | Prowers, CO | Zajic* William E | — |
| 2-8 Colorado State | 05-099-06111 | Plugged & abandoned | Other type | Prowers, CO | Zajic* William E | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Zajic William E operate?
Zajic William E is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in Colorado (10). Only wells in states WellCensus has ingested are counted.
How many of Zajic William E's wells are still active?
0 of Zajic William E's catalogued wells are active; 7 are plugged & abandoned.
In which states does Zajic William E operate wells?
Zajic William E is the operator of record for wells in Colorado (10).
Does Zajic William E operate mostly oil or gas wells?
0 of Zajic William E's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Zajic William E's deepest well?
Among wells with a published depth, 3-9 State in Prowers, CO is the deepest at 5,313 ft.
Where Zajic William E'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, “Zajic William E — well portfolio”, https://wellcensus.com/operators/zajic-william-e-3119 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).