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WellCensus

Ladd Petroleum

Operator of record for 443 catalogued wells across 14 states. Every well below links to its full registry page.

Filed as: LADD PETROLEUM CORP · LADD PETROLEUM CORP. · LADD PETROLEUM CORPORATION · Ladd Petroleum Co · …

At a glance

Ladd Petroleum is the operator of record for 443 catalogued U.S. oil & gas wells in 14 states. 10 (2%) are active, 377 (85%) plugged & abandoned and 1 flagged as orphaned. Its largest concentration is in Oklahoma, with 109 wells (25% of its portfolio).

Wells operated

443

Active

10

Plugged

377

Orphaned

1

Portfolio by state

StateWells
Oklahoma109
Kansas85
Louisiana56
North Dakota41
Colorado36
Montana29
Michigan20
Alabama14
Illinois14
Utah12
Arkansas11
Mississippi8
California6
Wyoming2

Well mix

Oil wells
135
Gas wells
39
Shut-in
0
Active share
2%

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Where does Ladd Petroleum operate?

Ladd Petroleum's catalogued wells are spread across 14 states: Oklahoma (109), Kansas (85), Louisiana (56), North Dakota (41) and Colorado (36) and 9 more. Its 41 North Dakota wells are 0.1% of the 43,680 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 Ladd Petroleum’s wells are active, plugged or orphaned?

2% of Ladd Petroleum's catalogued wells are active, 27 percentage points below the national share of 29%. 85% are plugged & abandoned, against 47% nationally. 1 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.

What kinds of wells does Ladd Petroleum operate?

By product class, 135 (30%) are oil wells and 39 (9%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Cam Ii Ra Sua Monlezun 001 in Jefferson Davis, LA at 17,033 ft. The wells listed below sit in Jefferson Davis (LA), Calcasieu (LA), Mckenzie (ND), Williams (ND), Lafayette (LA) and Terrebonne (LA). State filings spell the name 6 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Ladd Petroleum

Wells operated by Ladd Petroleum
WellAPI # / state IDStatusTypeLocationOperatorDepth
Cam Ii Ra Sua Monlezun 00117-053-01099Plugged & abandonedGasJefferson Davis, LALadd Petroleum Corporation17,033 ft
Cam 2 Ra Sua;miller 001-Alt17-053-20885Plugged & abandonedGasJefferson Davis, LALadd Petroleum Corporation17,000 ft
I H Derouen 00117-019-21237Plugged & abandonedGasCalcasieu, LALadd Petroleum Corporation15,524 ft
Ladd-Hart-Joyce Anderson 14-3133-053-01602Plugged & abandonedOilMckenzie, NDLadd Petroleum Corp.14,520 ft
Greengard 1-2633-105-01145Plugged & abandonedOilWilliams, NDLadd Petroleum Corp.14,500 ft
Enorman J Hanks 00117-055-20376Other statusOther typeLafayette, LALadd Petroleum Corporation14,500 ft
Peterson 1-1033-053-00757Plugged & abandonedGasMckenzie, NDLadd Petroleum Corp.14,200 ft
Federal 32-1233-053-01255Plugged & abandonedOilMckenzie, NDLadd Petroleum Corp.13,975 ft
Duncan Prince 31-4133-053-01050Plugged & abandonedGasMckenzie, NDLadd Petroleum Corp.13,670 ft
Smyth Ra Sua;sl 6826 Smyth 00117-109-21808OrphanedGasTerrebonne, LALadd Petroleum Corporation13,500 ft
Hack Ma Rb Sua;farmers L & C 00317-019-02654Plugged & abandonedGasCalcasieu, LALadd Petroleum Corporation13,450 ft
Ladd Hart Paulson 19-1433-053-01552Plugged & abandonedOilMckenzie, NDLadd Petroleum Corp.13,250 ft

Deepest first where depth is published. See all 443 wells →

Frequently asked questions

How many wells does Ladd Petroleum operate?

Ladd Petroleum is the operator of record for 443 catalogued oil & gas wells, with the largest concentration in Oklahoma (109). Only wells in states WellCensus has ingested are counted.

How many of Ladd Petroleum's wells are still active?

10 of Ladd Petroleum's catalogued wells are active; 377 are plugged & abandoned and 1 are flagged as orphaned.

In which states does Ladd Petroleum operate wells?

Ladd Petroleum is the operator of record for wells in Oklahoma (109), Kansas (85), Louisiana (56), North Dakota (41), Colorado (36), Montana (29), Michigan (20), Alabama (14), Illinois (14), Utah (12), Arkansas (11), Mississippi (8), California (6) and Wyoming (2).

Does Ladd Petroleum operate mostly oil or gas wells?

135 of Ladd Petroleum's catalogued wells are oil wells and 39 are gas wells; the rest are injection, service or unclassified wells.

What is Ladd Petroleum's deepest well?

Among wells with a published depth, Cam Ii Ra Sua Monlezun 001 in Jefferson Davis, LA is the deepest at 17,033 ft.

Where Ladd Petroleum'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, “Ladd Petroleum — well portfolio”, https://wellcensus.com/operators/ladd-petroleum-327 (data as of October 10, 2026).

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