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WellCensus

Eyster Oil

Operator of record for 6 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Eyster Oil is the operator of record for 6 catalogued U.S. oil & gas wells in 1 state. 6 (100%) are active, 0 (0%) plugged & abandoned. Its largest concentration is in Ohio, with 6 wells (100% of its portfolio).

Wells operated

6

Active

6

Plugged

0

Orphaned

0

Portfolio by state

StateWells
Ohio6

Well mix

Oil wells
6
Gas wells
0
Shut-in
0
Active share
100%

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Where does Eyster Oil operate?

Eyster Oil's catalogued wells are spread across 1 state: Ohio (6). Its 6 Ohio wells are 0.0% of the 242,052 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 Eyster Oil’s wells are active, plugged or orphaned?

100% of Eyster Oil's catalogued wells are active, 71 percentage points above 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 Eyster Oil operate?

By product class, 6 (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 Malmsberry Dale J& Jean 2 in Mahoning, OH at 5,472 ft. The wells listed below sit in Mahoning (OH) and Portage (OH).

Notable wells operated by Eyster Oil

Wells operated by Eyster Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Malmsberry Dale J& Jean 234-099-21825ActiveOilMahoning, OHEyster Oil Company LLC5,472 ft
Malmsberry Dj& J 134-099-21248ActiveOilMahoning, OHEyster Oil Company LLC5,422 ft
Bruderly & Pavolic 134-099-21216ActiveOilMahoning, OHEyster Oil Company LLC5,357 ft
Welker Homer I Etal 134-133-21584ActiveOilPortage, OHEyster Oil Company LLC4,920 ft
Mix R & A 134-133-23518ActiveOilPortage, OHEyster Oil Company LLC4,919 ft
Vaughn C P & E 134-133-23202ActiveOilPortage, OHEyster Oil Company LLC4,903 ft

Deepest first where depth is published. See all 6 wells →

Frequently asked questions

How many wells does Eyster Oil operate?

Eyster Oil is the operator of record for 6 catalogued oil & gas wells, with the largest concentration in Ohio (6). Only wells in states WellCensus has ingested are counted.

How many of Eyster Oil's wells are still active?

6 of Eyster Oil's catalogued wells are active; 0 are plugged & abandoned.

In which states does Eyster Oil operate wells?

Eyster Oil is the operator of record for wells in Ohio (6).

Does Eyster Oil operate mostly oil or gas wells?

6 of Eyster Oil's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

What is Eyster Oil's deepest well?

Among wells with a published depth, Malmsberry Dale J& Jean 2 in Mahoning, OH is the deepest at 5,472 ft.

Where Eyster 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, “Eyster Oil — well portfolio”, https://wellcensus.com/operators/eyster-oil-86002 (data as of October 10, 2026).

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