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WellCensus

Harter Oil

Operator of record for 158 catalogued wells across 1 state. Every well below links to its full registry page.

At a glance

Harter Oil is the operator of record for 158 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 142 (90%) are plugged & abandoned and 7 flagged as orphaned. Its largest concentration is in Louisiana, with 158 wells (100% of its portfolio).

Wells operated

158

Active

0

Plugged

142

Orphaned

7

Portfolio by state

StateWells
Louisiana158

Well mix

Oil wells
52
Gas wells
1
Shut-in
0
Active share
0%

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Where does Harter Oil operate?

Harter Oil's catalogued wells are spread across 1 state: Louisiana (158). Its 158 Louisiana wells are 0.1% of the 225,728 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 Harter Oil’s wells are active, plugged or orphaned?

0% of Harter Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 90% are plugged & abandoned, against 47% nationally. 7 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.

What kinds of wells does Harter Oil operate?

By product class, 52 (33%) are oil wells and 1 (0.6%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Urania Lbr Co 002 in Grant, LA at 4,798 ft. The wells listed below sit in Grant (LA), La Salle (LA), Caldwell (LA) and De Soto (LA).

Notable wells operated by Harter Oil

Wells operated by Harter Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Urania Lbr Co 00217-043-00289Plugged & abandonedOther typeGrant, LAHarter Oil Company4,798 ft
Urania Lumber Company 00117-043-00304Plugged & abandonedOther typeGrant, LAHarter Oil Company4,319 ft
Jarvis H Swd 00117-059-01659Plugged & abandonedOther typeLa Salle, LAHarter Oil Company3,716 ft
Harter-Urania Lumber Co B-117-059-00004Plugged & abandonedOther typeLa Salle, LAHarter Oil Company3,509 ft
Nugent A-917-059-20942Plugged & abandonedOther typeLa Salle, LAHarter Oil Company3,158 ft
Wx G2 Ra Su462;tremont B 01117-059-23848Plugged & abandonedOther typeLa Salle, LAHarter Oil Company3,100 ft
Mixon B 00117-059-21663Plugged & abandonedOther typeLa Salle, LAHarter Oil Company3,016 ft
Urania Lumber Co 00117-021-00144Plugged & abandonedOther typeCaldwell, LAHarter Oil Company3,012 ft
Olin Oil & Gas Corp 00117-031-00183Plugged & abandonedOther typeDe Soto, LAHarter Oil Company3,010 ft
Olin Oil & Gas Corp 00217-031-00181Plugged & abandonedOther typeDe Soto, LAHarter Oil Company3,010 ft
Mixon A 00117-059-21852Plugged & abandonedOther typeLa Salle, LAHarter Oil Company2,997 ft
La Pacific A 00117-059-24933Plugged & abandonedOther typeLa Salle, LAHarter Oil Company2,995 ft

Deepest first where depth is published. See all 158 wells →

Frequently asked questions

How many wells does Harter Oil operate?

Harter Oil is the operator of record for 158 catalogued oil & gas wells, with the largest concentration in Louisiana (158). Only wells in states WellCensus has ingested are counted.

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

0 of Harter Oil's catalogued wells are active; 142 are plugged & abandoned and 7 are flagged as orphaned.

In which states does Harter Oil operate wells?

Harter Oil is the operator of record for wells in Louisiana (158).

Does Harter Oil operate mostly oil or gas wells?

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

What is Harter Oil's deepest well?

Among wells with a published depth, Urania Lbr Co 002 in Grant, LA is the deepest at 4,798 ft.

Where Harter 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, “Harter Oil — well portfolio”, https://wellcensus.com/operators/harter-oil-77553 (data as of October 10, 2026).

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