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Mcmillin Cc &

Operator of record for 72 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Mcmillin Cc & is the operator of record for 72 catalogued U.S. oil & gas wells in 1 state. 25 (35%) are active, 47 (65%) plugged & abandoned. Its largest concentration is in Oklahoma, with 72 wells (100% of its portfolio).

Wells operated

72

Active

25

Plugged

47

Orphaned

0

Portfolio by state

StateWells
Oklahoma72

Well mix

Oil wells
50
Gas wells
8
Shut-in
0
Active share
35%

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Where does Mcmillin Cc & operate?

Mcmillin Cc &'s catalogued wells are spread across 1 state: Oklahoma (72). Its 72 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 Mcmillin Cc &’s wells are active, plugged or orphaned?

35% of Mcmillin Cc &'s catalogued wells are active, 6 percentage points above the national share of 29%. 65% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Mcmillin Cc & operate?

By product class, 50 (69%) are oil wells and 8 (11%) gas wells; nationally the shares are 43% and 17%. The wells listed below sit in Garfield (OK) and Logan (OK).

Notable wells operated by Mcmillin Cc &

Wells operated by Mcmillin Cc &
WellAPI # / state IDStatusTypeLocationOperatorDepth
Simmering #4635-047-20708Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—
Williams #135-083-20278ActiveOilLogan, OKMcmillin C C & Company Inc—
Glacie Howland #135-083-21404Plugged & abandonedOther typeLogan, OKMcmillin C C & Company Inc—
Rhodes #435-083-24451ActiveOilLogan, OKMcmillin C C & Company Inc—
Platt #135-083-20858Plugged & abandonedOther typeLogan, OKMcmillin C C & Company Inc—
Schaefer #2-1335-083-22808Plugged & abandonedOilLogan, OKMcmillin C C & Company Inc—
Simmering #535-047-01500Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—
Simmering #40-V35-047-20683Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—
Simmering #41-D35-047-20684Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—
Simmering #4235-047-20707Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—
Simmering #4335-047-20711Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—
Simmering #935-047-01503Plugged & abandonedOilGarfield, OKMcmillin C C & Company Inc—

Deepest first where depth is published. See all 72 wells →

Frequently asked questions

How many wells does Mcmillin Cc & operate?

Mcmillin Cc & is the operator of record for 72 catalogued oil & gas wells, with the largest concentration in Oklahoma (72). Only wells in states WellCensus has ingested are counted.

How many of Mcmillin Cc &'s wells are still active?

25 of Mcmillin Cc &'s catalogued wells are active; 47 are plugged & abandoned.

In which states does Mcmillin Cc & operate wells?

Mcmillin Cc & is the operator of record for wells in Oklahoma (72).

Does Mcmillin Cc & operate mostly oil or gas wells?

50 of Mcmillin Cc &'s catalogued wells are oil wells and 8 are gas wells; the rest are injection, service or unclassified wells.

Where Mcmillin Cc &'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, “Mcmillin Cc & — well portfolio”, https://wellcensus.com/operators/mcmillin-cc-1507 (data as of October 10, 2026).

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