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WellCensus

Thomason Oil

Operator of record for 5 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Thomason Oil is the operator of record for 5 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 5 (100%) are plugged & abandoned. Its largest concentration is in Kansas, with 5 wells (100% of its portfolio).

Wells operated

5

Active

0

Plugged

5

Orphaned

0

Portfolio by state

StateWells
Kansas5

Well mix

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

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Where does Thomason Oil operate?

Thomason Oil's catalogued wells are spread across 1 state: Kansas (5). Its 5 Kansas wells are 0.0% of the 473,140 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 Thomason Oil’s wells are active, plugged or orphaned?

0% of Thomason Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Thomason Oil operate?

By product class, 2 (40%) 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 Ruder 1 in Graham, KS at 3,970 ft. The wells listed below sit in Graham (KS), Ellis (KS), Rooks (KS) and Barton (KS).

Notable wells operated by Thomason Oil

Wells operated by Thomason Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Ruder 115-065-22111Plugged & abandonedOther typeGraham, KSThomason Oil Company3,970 ft
Meistrell 'B' 415-051-04736Plugged & abandonedInjectionEllis, KSThomason Oil Company3,875 ft
Holsman 115-163-30120Plugged & abandonedOilRooks, KSThomason Oil Company3,429 ft
Koch 'A' 215-009-22547Plugged & abandonedOilBarton, KSThomason Oil Company3,327 ft
Meistrell 'B' 115-051-20397Plugged & abandonedInjectionEllis, KSThomason Oil Company1,075 ft

Deepest first where depth is published. See all 5 wells →

Frequently asked questions

How many wells does Thomason Oil operate?

Thomason Oil is the operator of record for 5 catalogued oil & gas wells, with the largest concentration in Kansas (5). Only wells in states WellCensus has ingested are counted.

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

0 of Thomason Oil's catalogued wells are active; 5 are plugged & abandoned.

In which states does Thomason Oil operate wells?

Thomason Oil is the operator of record for wells in Kansas (5).

Does Thomason Oil operate mostly oil or gas wells?

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

What is Thomason Oil's deepest well?

Among wells with a published depth, Ruder 1 in Graham, KS is the deepest at 3,970 ft.

Where Thomason 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, “Thomason Oil — well portfolio”, https://wellcensus.com/operators/thomason-oil-76916 (data as of October 10, 2026).

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