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WellCensus

Tallman Trust

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

At a glance

Tallman Trust is the operator of record for 6 catalogued U.S. oil & gas wells in 1 state. 5 (83%) are active, 0 (0%) plugged & abandoned. Its largest concentration is in Michigan, with 6 wells (100% of its portfolio).

Wells operated

6

Active

5

Plugged

0

Orphaned

0

Portfolio by state

StateWells
Michigan6

Well mix

Oil wells
0
Gas wells
0
Shut-in
1
Active share
83%

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Where does Tallman Trust operate?

Tallman Trust's catalogued wells are spread across 1 state: Michigan (6). Its 6 Michigan wells are 0.0% of the 85,673 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 Tallman Trust’s wells are active, plugged or orphaned?

83% of Tallman Trust's catalogued wells are active, 54 percentage points above the national share of 29%. 0% are plugged & abandoned, against 47% nationally. 1 wells (17%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Tallman Trust operate?

By product class, 0 (0%) 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 Ida Hollister Porter Hogan 1-8 in Roscommon, MI at 5,203 ft. The wells listed below sit in Roscommon (MI), Gladwin (MI) and Bay (MI).

Notable wells operated by Tallman Trust

Wells operated by Tallman Trust
WellAPI # / state IDStatusTypeLocationOperatorDepth
Ida Hollister Porter Hogan 1-821-143-32355ActiveOther typeRoscommon, MITallman Trust Co5,203 ft
Ida Hollister Porter Hogan 1-1721-143-32356ActiveOther typeRoscommon, MITallman Trust Co5,148 ft
Cingano 2-3621-051-35794ActiveOther typeGladwin, MITallman Trust Co3,859 ft
Cingano 1-3621-051-35263ActiveOther typeGladwin, MITallman Trust Co3,849 ft
Porter Hogan Trust 3-1721-143-33544ActiveOther typeRoscommon, MITallman Trust Co3,737 ft
Schwab 1-221-017-38057Shut-inOther typeBay, MITallman Trust Co2,038 ft

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

Frequently asked questions

How many wells does Tallman Trust operate?

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

How many of Tallman Trust's wells are still active?

5 of Tallman Trust's catalogued wells are active; 0 are plugged & abandoned.

In which states does Tallman Trust operate wells?

Tallman Trust is the operator of record for wells in Michigan (6).

Does Tallman Trust operate mostly oil or gas wells?

0 of Tallman Trust's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

What is Tallman Trust's deepest well?

Among wells with a published depth, Ida Hollister Porter Hogan 1-8 in Roscommon, MI is the deepest at 5,203 ft.

Where Tallman Trust'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, “Tallman Trust — well portfolio”, https://wellcensus.com/operators/tallman-trust-117288 (data as of October 10, 2026).

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