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WellCensus

Circle Oil

Operator of record for 4 catalogued wells across 2 states. Every well below links to its full registry page.

Filed as: Circle Oil Co. · Circle Oil Company, Inc.

At a glance

Circle Oil is the operator of record for 4 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 3 (75%) are plugged & abandoned. Its largest concentration is in California, with 2 wells (50% of its portfolio).

Wells operated

4

Active

0

Plugged

3

Orphaned

0

Portfolio by state

StateWells
California2
Kansas2

Well mix

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

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Where does Circle Oil operate?

Circle Oil's catalogued wells are spread across 2 states: California (2) and Kansas (2). Its 2 California wells are 0.0% of the 242,471 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 Circle Oil’s wells are active, plugged or orphaned?

0% of Circle Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 75% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Circle Oil operate?

By product class, 1 (25%) 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 West Brooks Ui-34 in Anderson, KS at 774 ft. The wells listed below sit in Anderson (KS), Kern (CA), Fresno (CA) and Rooks (KS). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Circle Oil

Wells operated by Circle Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
West Brooks Ui-3415-003-71915Plugged & abandonedInjectionAnderson, KSCircle Oil Company, Inc.774 ft
SOCO-Circle-Nissen 71-2004-029-47576Plugged & abandonedOther typeKern, CACircle Oil Co.—
Lease by Circle Oil Co. 104-019-00223Plugged & abandonedOilFresno, CACircle Oil Co.—
Graham 115-163-21840Other statusOther typeRooks, KSCircle Oil Company, Inc.—

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

Frequently asked questions

How many wells does Circle Oil operate?

Circle Oil is the operator of record for 4 catalogued oil & gas wells, with the largest concentration in California (2). Only wells in states WellCensus has ingested are counted.

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

0 of Circle Oil's catalogued wells are active; 3 are plugged & abandoned.

In which states does Circle Oil operate wells?

Circle Oil is the operator of record for wells in California (2) and Kansas (2).

Does Circle Oil operate mostly oil or gas wells?

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

What is Circle Oil's deepest well?

Among wells with a published depth, West Brooks Ui-34 in Anderson, KS is the deepest at 774 ft.

Where Circle 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, “Circle Oil — well portfolio”, https://wellcensus.com/operators/circle-oil-7497 (data as of October 10, 2026).

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