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WellCensus

Secondary Oil

Operator of record for 477 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Secondary Oil is the operator of record for 477 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 308 (65%) are plugged & abandoned and 121 flagged as orphaned. Its largest concentration is in Arkansas, with 477 wells (100% of its portfolio).

Wells operated

477

Active

0

Plugged

308

Orphaned

121

Portfolio by state

StateWells
Arkansas477

Well mix

Oil wells
413
Gas wells
0
Shut-in
0
Active share
0%

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Where does Secondary Oil operate?

Secondary Oil's catalogued wells are spread across 1 state: Arkansas (477). Its 477 Arkansas wells are 1% of the 33,791 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 Secondary Oil’s wells are active, plugged or orphaned?

0% of Secondary Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 65% are plugged & abandoned, against 47% nationally. 121 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.

What kinds of wells does Secondary Oil operate?

By product class, 413 (87%) 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 Stephens Waterflood Unit III 13-31 in Columbia, AR at 4,005 ft. The wells listed below sit in Columbia (AR), Ouachita (AR) and Bradley (AR).

Notable wells operated by Secondary Oil

Wells operated by Secondary Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Stephens Waterflood Unit III 13-3103-027-01580Plugged & abandonedOilColumbia, ARSecondary Oil Corp4,005 ft
Sherry Buckrange Unit 22-1003-103-01343Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,636 ft
Buckrange/Blossom Sand Unit 21-103-103-01384Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,514 ft
Stephens Waterflood Unit II 19-5103-103-01161Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,398 ft
Morgan "A" 103-103-10114Other statusOilOuachita, ARSecondary Oil Corp3,382 ft
Sherry Buckrange Unit 20-3603-103-01169Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,369 ft
Sherry Buckrange Unit 32-503-103-01837Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,350 ft
Stephens Waterflood Unit II 19-4803-103-01146Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,217 ft
Stephens Waterflood Unit II 20-5903-103-01198Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,212 ft
Buckrange/Blossom Sand Unit 23-103-103-01464Plugged & abandonedOilOuachita, ARSecondary Oil Corp3,150 ft
Lick Creek Meakin Unit 5-G103-011-00042Plugged & abandonedInjectionBradley, ARSecondary Oil Corp3,002 ft
Buckrange/Blossom Sand Unit 21-203-103-01385Plugged & abandonedOilOuachita, ARSecondary Oil Corp2,913 ft

Deepest first where depth is published. See all 477 wells →

Frequently asked questions

How many wells does Secondary Oil operate?

Secondary Oil is the operator of record for 477 catalogued oil & gas wells, with the largest concentration in Arkansas (477). Only wells in states WellCensus has ingested are counted.

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

0 of Secondary Oil's catalogued wells are active; 308 are plugged & abandoned and 121 are flagged as orphaned.

In which states does Secondary Oil operate wells?

Secondary Oil is the operator of record for wells in Arkansas (477).

Does Secondary Oil operate mostly oil or gas wells?

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

What is Secondary Oil's deepest well?

Among wells with a published depth, Stephens Waterflood Unit III 13-31 in Columbia, AR is the deepest at 4,005 ft.

Where Secondary 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, “Secondary Oil — well portfolio”, https://wellcensus.com/operators/secondary-oil-65918 (data as of October 10, 2026).

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