Who operates English, L.C. 12?

English, L.C. 12 (API 12-023-00688) is operated by C. L. McMahon, Inc. according to the Illinois regulator's registry.

Is English, L.C. 12 plugged or still active?

English, L.C. 12 is plugged and abandoned.

English, L.C. 12 is in Clark County, Illinois at 39.26096, -87.92673.

API 12-023-00688Plugged & abandonedOther type well

Other type well in Clark County, Illinois · operated by Cl Mcmahon

Spud date

—

Drilling began

Completion

Jul 1, 1949

Plug date

—

Total depth

541 ft

As published by the state

API #: 12-023-00688
Status: Plugged & abandoned(state code: Dry and Abandoned, No Shows, Plugged)
Type: Other type(DAP)
County: Clark
Coordinates: 39.26096, -87.92673
State record #: 120230068800

◆ Loading map…

documentedproducingidlesealed

This entry + 8 nearby

Claim your operator profile to keep well records accurate — verified operators can correct statuses and add plugging documentation.

Well	API #	Status	Type	Operator
Grant, O. B. 4	12-033-07013	Plugged & abandoned	Oil	Ohio Oil Co., The
Chesser, Bertha 1	12-033-30260	Plugged & abandoned	Other type	Hocking Oil Company, Inc.
Freeland, William J. 2	12-079-00869	Plugged & abandoned	Other type	Carter D V
Smith, Fred 1	12-033-06607	Plugged & abandoned	Other type	Fairfield Oil Company
Grant, O. B. 27	12-033-07221	Plugged & abandoned	Oil	Ohio Oil Co., The
Grant, O. B. P-6	12-033-07018	Plugged & abandoned	Oil	Nomo Petroleum

Dataset updated July 2026 . Source: Illinois oil & gas regulator registry + the USGS documented-orphaned-wells inventory.