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WellCensus

Thornhill & Assoc

Operator of record for 4 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Thornhill & Assoc is the operator of record for 4 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 2 (50%) are plugged & abandoned. Its largest concentration is in Mississippi, with 4 wells (100% of its portfolio).

Wells operated

4

Active

0

Plugged

2

Orphaned

0

Portfolio by state

StateWells
Mississippi4

Well mix

Oil wells
0
Gas wells
2
Shut-in
0
Active share
0%

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Where does Thornhill & Assoc operate?

Thornhill & Assoc's catalogued wells are spread across 1 state: Mississippi (4). Its 4 Mississippi wells are 0.0% of the 34,924 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 Thornhill & Assoc’s wells are active, plugged or orphaned?

0% of Thornhill & Assoc's catalogued wells are active, 29 percentage points below the national share of 29%. 50% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Thornhill & Assoc operate?

By product class, 0 (0%) are oil wells and 2 (50%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Lawrence (MS) and Pike (MS).

Notable wells operated by Thornhill & Assoc

Wells operated by Thornhill & Assoc
WellAPI # / state IDStatusTypeLocationOperatorDepth
Brister Unit 1 123-077-20075Plugged & abandonedOther typeLawrence, MSThornhill & Assoc.—
Hauberg A-1 32-523-077-20086Other statusGasLawrence, MSThornhill & Assoc.—
Hauberg A-1 32-523-077-20089Other statusGasLawrence, MSThornhill & Assoc.—
Mintz-Walker Heirs 1 123-113-20201Plugged & abandonedOther typePike, MSThornhill & Assoc.—

Deepest first where depth is published. See all 4 wells →

Frequently asked questions

How many wells does Thornhill & Assoc operate?

Thornhill & Assoc is the operator of record for 4 catalogued oil & gas wells, with the largest concentration in Mississippi (4). Only wells in states WellCensus has ingested are counted.

How many of Thornhill & Assoc's wells are still active?

0 of Thornhill & Assoc's catalogued wells are active; 2 are plugged & abandoned.

In which states does Thornhill & Assoc operate wells?

Thornhill & Assoc is the operator of record for wells in Mississippi (4).

Does Thornhill & Assoc operate mostly oil or gas wells?

0 of Thornhill & Assoc's catalogued wells are oil wells and 2 are gas wells; the rest are injection, service or unclassified wells.

Where Thornhill & Assoc'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, “Thornhill & Assoc — well portfolio”, https://wellcensus.com/operators/thornhill-assoc-139656 (data as of October 10, 2026).

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