Legg Arthur L
Operator of record for 18 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Legg Arthur L is the operator of record for 18 catalogued U.S. oil & gas wells in 1 state. 11 (61%) are active, 2 (11%) plugged & abandoned. Its largest concentration is in Illinois, with 18 wells (100% of its portfolio).
Wells operated
18
Active
11
Plugged
2
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 18 |
Well mix
- Oil wells
- 11
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 61%
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Claim your operator profileWhere does Legg Arthur L operate?
Legg Arthur L's catalogued wells are spread across 1 state: Illinois (18). Its 18 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 Legg Arthur L’s wells are active, plugged or orphaned?
61% of Legg Arthur L's catalogued wells are active, 32 percentage points above the national share of 29%. 11% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Legg Arthur L operate?
By product class, 11 (61%) 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 Petty Heirs 2 in Lawrence, IL at 1,845 ft. The wells listed below sit in Lawrence (IL) and Crawford (IL).
Notable wells operated by Legg Arthur L
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Petty Heirs 2 | 12-101-29519 | Active | Oil | Lawrence, IL | Legg, Arthur L. | 1,845 ft |
| Updike, Mary 2 | 12-101-32259 | Active | Oil | Lawrence, IL | Legg, Arthur L. | 1,800 ft |
| Updike, Opal 3 | 12-101-31984 | Active | Oil | Lawrence, IL | Legg, Arthur L. | 1,730 ft |
| Havill Ray 1 | 12-101-05192 | Plugged & abandoned | Oil | Lawrence, IL | Legg, Arthur L. | 1,711 ft |
| Petty Heirs 3 | 12-101-32258 | Active | Oil | Lawrence, IL | Legg, Arthur L. | 1,700 ft |
| Stantz WI-2 | 12-033-31477 | Active | Injection | Crawford, IL | Legg, Arthur L. | 1,150 ft |
| Smith, John C. 5 | 12-033-32255 | Plugged & abandoned | Other type | Crawford, IL | Legg, Arthur L. | 1,030 ft |
| Stantz 18 | 12-033-37468 | Active | Oil | Crawford, IL | Legg, Arthur L. | 1,026 ft |
| Stantz, Charles 16 | 12-033-35094 | Active | Oil | Crawford, IL | Legg, Arthur L. | 1,020 ft |
| Stantz 17 | 12-033-37220 | Active | Oil | Crawford, IL | Legg, Arthur L. | 1,000 ft |
| Stantz, Charles 14 | 12-033-32824 | Active | Oil | Crawford, IL | Legg, Arthur L. | 976 ft |
| Stantz, Charles 15 | 12-033-33078 | Active | Oil | Crawford, IL | Legg, Arthur L. | 963 ft |
Deepest first where depth is published. See all 18 wells →
Frequently asked questions
How many wells does Legg Arthur L operate?
Legg Arthur L is the operator of record for 18 catalogued oil & gas wells, with the largest concentration in Illinois (18). Only wells in states WellCensus has ingested are counted.
How many of Legg Arthur L's wells are still active?
11 of Legg Arthur L's catalogued wells are active; 2 are plugged & abandoned.
In which states does Legg Arthur L operate wells?
Legg Arthur L is the operator of record for wells in Illinois (18).
Does Legg Arthur L operate mostly oil or gas wells?
11 of Legg Arthur L's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Legg Arthur L's deepest well?
Among wells with a published depth, Petty Heirs 2 in Lawrence, IL is the deepest at 1,845 ft.
Where Legg Arthur L'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, “Legg Arthur L — well portfolio”, https://wellcensus.com/operators/legg-arthur-l-96356 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).