Hallam Oil
Operator of record for 7 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Hallam Oil is the operator of record for 7 catalogued U.S. oil & gas wells in 1 state. 1 (14%) are active, 5 (71%) plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Illinois, with 7 wells (100% of its portfolio).
Wells operated
7
Active
1
Plugged
5
Orphaned
1
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 7 |
Well mix
- Oil wells
- 6
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 14%
Is this your company?
Claim Hallam Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Hallam Oil operate?
Hallam Oil'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 Hallam Oil’s wells are active, plugged or orphaned?
14% of Hallam Oil's catalogued wells are active, 15 percentage points below the national share of 29%. 71% 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 Hallam Oil operate?
By product class, 6 (86%) 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 Hallam 3 in Wayne, IL at 4,203 ft. The wells listed below sit in Wayne (IL) and White (IL).
Notable wells operated by Hallam Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Hallam 3 | 12-191-29912 | Plugged & abandoned | Oil | Wayne, IL | Hallam Oil Co. | 4,203 ft |
| Gray, Frank 1 | 12-191-06639 | Active | Oil | Wayne, IL | Hallam Oil Co. | 3,340 ft |
| Hammack, Sarah 2 | 12-193-03570 | Plugged & abandoned | Oil | White, IL | Hallam Oil Co. | 3,270 ft |
| Dauby, J. & F. 4 | 12-193-03562 | Plugged & abandoned | Oil | White, IL | Hallam Oil Co. | 3,260 ft |
| Moss, Mary M. 1 | 12-193-07569 | Plugged & abandoned | Oil | White, IL | Hallam Oil Co. | 2,357 ft |
| Oakley, Carson 2 | 12-191-01567 | Orphaned | Oil | Wayne, IL | Hallam Oil Co. | 0 ft |
| McIntosh, W. P. 1-SWD | 12-193-31311 | Plugged & abandoned | Injection | White, IL | Hallam Oil Co. | — |
Deepest first where depth is published. See all 7 wells →
Frequently asked questions
How many wells does Hallam Oil operate?
Hallam Oil 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 Hallam Oil's wells are still active?
1 of Hallam Oil's catalogued wells are active; 5 are plugged & abandoned and 1 are flagged as orphaned.
In which states does Hallam Oil operate wells?
Hallam Oil is the operator of record for wells in Illinois (7).
Does Hallam Oil operate mostly oil or gas wells?
6 of Hallam Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Hallam Oil's deepest well?
Among wells with a published depth, Hallam 3 in Wayne, IL is the deepest at 4,203 ft.
Where Hallam 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, “Hallam Oil — well portfolio”, https://wellcensus.com/operators/hallam-oil-67150 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).