Harza Engineering
Operator of record for 7 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Harza Engineering is the operator of record for 7 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 0 (0%) are plugged & abandoned. Its largest concentration is in Illinois, with 7 wells (100% of its portfolio).
Wells operated
7
Active
0
Plugged
0
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 7 |
Well mix
- Oil wells
- 0
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Harza Engineering to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Harza Engineering operate?
Harza Engineering's catalogued wells are spread across 1 state: Illinois (7). Its 7 Illinois wells are 0.0% of the 174,478 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 Harza Engineering’s wells are active, plugged or orphaned?
0% of Harza Engineering's catalogued wells are active, 29 percentage points below the national share of 29%. 0% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Harza Engineering 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 Uph 2 in Stephenson, IL at 5,442 ft. The wells listed below sit in Stephenson (IL) and Cook (IL).
Notable wells operated by Harza Engineering
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Uph 2 | 12-177-21316 | Other status | Other type | Stephenson, IL | Harza Engineering Co. | 5,442 ft |
| Uph 3 | 12-177-21317 | Other status | Other type | Stephenson, IL | Harza Engineering Co. | 5,272 ft |
| MSD Chicago-Mainstream Sys DH71-19(70 | 12-031-34165 | Other status | Other type | Cook, IL | Harza Engineering Co. | 896 ft |
| MSD Chicago-Mainstream Sys DH71-34(81 | 12-031-33621 | Other status | Other type | Cook, IL | Harza Engineering Co. | 826 ft |
| MSD Chicago-Mainstream Sys DH71-81(F2 | 12-031-01667 | Other status | Other type | Cook, IL | Harza Engineering Co. | 816 ft |
| MSD Chicago-Mainstream Sys DH74-7 | 12-031-30344 | Other status | Other type | Cook, IL | Harza Engineering Co. | 432 ft |
| MSD Chicago-Mainstream Sys DH74-14 | 12-031-30345 | Other status | Other type | Cook, IL | Harza Engineering Co. | 326 ft |
Deepest first where depth is published. See all 7 wells →
Frequently asked questions
How many wells does Harza Engineering operate?
Harza Engineering is the operator of record for 7 catalogued oil & gas wells, with the largest concentration in Illinois (7). Only wells in states WellCensus has ingested are counted.
How many of Harza Engineering's wells are still active?
0 of Harza Engineering's catalogued wells are active; 0 are plugged & abandoned.
In which states does Harza Engineering operate wells?
Harza Engineering is the operator of record for wells in Illinois (7).
Does Harza Engineering operate mostly oil or gas wells?
0 of Harza Engineering's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Harza Engineering's deepest well?
Among wells with a published depth, Uph 2 in Stephenson, IL is the deepest at 5,442 ft.
Where Harza Engineering'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, “Harza Engineering — well portfolio”, https://wellcensus.com/operators/harza-engineering-95339 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).