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WellCensus

Blair Oil

Operator of record for 26 catalogued wells across 3 states. Every well below links to its full registry page.

Filed as: BLAIR OIL CO · BLAIR OIL COMPANY · Blair Oil Co.

At a glance

Blair Oil is the operator of record for 26 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 26 (100%) are plugged & abandoned. Its largest concentration is in Oklahoma, with 23 wells (88% of its portfolio).

Wells operated

26

Active

0

Plugged

26

Orphaned

0

Portfolio by state

StateWells
Oklahoma23
California2
Colorado1

Well mix

Oil wells
12
Gas wells
8
Shut-in
0
Active share
0%

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Where does Blair Oil operate?

Blair Oil's catalogued wells are spread across 3 states: Oklahoma (23), California (2) and Colorado (1). Its 23 Oklahoma wells are 0.0% of the 456,595 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 Blair Oil’s wells are active, plugged or orphaned?

0% of Blair 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 Blair Oil operate?

By product class, 12 (46%) are oil wells and 8 (31%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is 1 Collins Ranch in Cheyenne, CO at 5,693 ft. The wells listed below sit in Cheyenne (CO), Fresno (CA), Canadian (OK), Alfalfa (OK), Blaine (OK) and Kingfisher (OK) and other counties. State filings spell the name 3 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Blair Oil

Wells operated by Blair Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
1 Collins Ranch05-017-06188Plugged & abandonedOther typeCheyenne, COBlair Oil Co5,693 ft
Lease by Blair Oil Co. 104-019-06337Plugged & abandonedOther typeFresno, CABlair Oil Co.—
Mount #18-135-017-20276Plugged & abandonedOilCanadian, OKBlair Oil Company—
Koehn #135-003-20369Plugged & abandonedGasAlfalfa, OKBlair Oil Company—
Ash #135-011-20868Plugged & abandonedGasBlaine, OKBlair Oil Company—
Nippert #1-1235-011-21857Plugged & abandonedOther typeBlaine, OKBlair Oil Company—
Rozetta Jindra #235-073-22918Plugged & abandonedOilKingfisher, OKBlair Oil Company—
Weber #7-135-017-20987Plugged & abandonedOilCanadian, OKBlair Oil Company—
Walter Mills #1-2735-017-21338Plugged & abandonedOilCanadian, OKBlair Oil Company—
H & F Realty #135-017-21572Plugged & abandonedOilCanadian, OKBlair Oil Company—
Berryman #14-1635-045-21120Plugged & abandonedGasEllis, OKBlair Oil Company—
Biggs #4-135-017-22517Plugged & abandonedOilCanadian, OKBlair Oil Company—

Deepest first where depth is published. See all 26 wells →

Frequently asked questions

How many wells does Blair Oil operate?

Blair Oil is the operator of record for 26 catalogued oil & gas wells, with the largest concentration in Oklahoma (23). Only wells in states WellCensus has ingested are counted.

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

0 of Blair Oil's catalogued wells are active; 26 are plugged & abandoned.

In which states does Blair Oil operate wells?

Blair Oil is the operator of record for wells in Oklahoma (23), California (2) and Colorado (1).

Does Blair Oil operate mostly oil or gas wells?

12 of Blair Oil's catalogued wells are oil wells and 8 are gas wells; the rest are injection, service or unclassified wells.

What is Blair Oil's deepest well?

Among wells with a published depth, 1 Collins Ranch in Cheyenne, CO is the deepest at 5,693 ft.

Where Blair 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, “Blair Oil — well portfolio”, https://wellcensus.com/operators/blair-oil-155 (data as of October 10, 2026).

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