Leach & Halbert

Operator of record for 8 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Leach & Halbert is the operator of record for 8 catalogued U.S. oil & gas wells in 1 state. 1 (13%) are active, 7 (88%) plugged & abandoned. Its largest concentration is in Illinois, with 8 wells (100% of its portfolio).

Wells operated

Active

Plugged

Orphaned

Portfolio by state

State	Wells
Illinois	8

Well mix

Oil wells: 8
Gas wells: 0
Shut-in: 0
Active share: 13%

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Where does Leach & Halbert operate?

Leach & Halbert's catalogued wells are spread across 1 state: Illinois (8). Its 8 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 Leach & Halbert’s wells are active, plugged or orphaned?

13% of Leach & Halbert's catalogued wells are active, 16 percentage points below the national share of 29%. 88% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Leach & Halbert operate?

By product class, 8 (100%) 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 Arensman 4 in Gallatin, IL at 2,410 ft.

Notable wells operated by Leach & Halbert

Wells operated by Leach & Halbert
Well	API # / state ID	Status	Type	Location	Operator	Depth
Arensman 4	12-059-00954	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	2,410 ft
Curry J H 7	12-059-00228	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	2,083 ft
Curry, J. H. 6	12-059-00227	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	2,080 ft
Curry, J. H. 2	12-059-00223	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	2,075 ft
Curry, J. H. 1	12-059-00222	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	2,074 ft
Curry J H 3	12-059-00224	Active	Oil	Gallatin, IL	Leach & Halbert	2,071 ft
Curry, J. H. 5	12-059-00226	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	2,052 ft
Curry, J. H. 9	12-059-00230	Plugged & abandoned	Oil	Gallatin, IL	Leach & Halbert	793 ft

Deepest first where depth is published. See all 8 wells →

Frequently asked questions

How many wells does Leach & Halbert operate?

Leach & Halbert is the operator of record for 8 catalogued oil & gas wells, with the largest concentration in Illinois (8). Only wells in states WellCensus has ingested are counted.

How many of Leach & Halbert's wells are still active?

1 of Leach & Halbert's catalogued wells are active; 7 are plugged & abandoned.

In which states does Leach & Halbert operate wells?

Leach & Halbert is the operator of record for wells in Illinois (8).

Does Leach & Halbert operate mostly oil or gas wells?

8 of Leach & Halbert's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

What is Leach & Halbert's deepest well?

Among wells with a published depth, Arensman 4 in Gallatin, IL is the deepest at 2,410 ft.

Where Leach & Halbert'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, “Leach & Halbert — well portfolio”, https://wellcensus.com/operators/leach-halbert-99904 (data as of October 10, 2026).

Dataset updated October 2026 . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).