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WellCensus

Empire State Oil

Operator of record for 104 catalogued wells across 4 states. Every well below links to its full registry page.

Filed as: EMPIRE STATE OIL · EMPIRE STATE OIL CO. · Empire State Oil Co.

At a glance

Empire State Oil is the operator of record for 104 catalogued U.S. oil & gas wells in 4 states. None is listed as active, 101 (97%) are plugged & abandoned. Its largest concentration is in Wyoming, with 66 wells (63% of its portfolio).

Wells operated

104

Active

0

Plugged

101

Orphaned

0

Portfolio by state

StateWells
Wyoming66
Montana23
California10
North Dakota5

Well mix

Oil wells
71
Gas wells
5
Shut-in
0
Active share
0%

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Where does Empire State Oil operate?

Empire State Oil's catalogued wells are spread across 4 states: Wyoming (66), Montana (23), California (10) and North Dakota (5). Its 23 Montana wells are 0.1% of the 42,011 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 Empire State Oil’s wells are active, plugged or orphaned?

0% of Empire State Oil's catalogued wells are active, 29 percentage points below the national share of 29%. 97% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Empire State Oil operate?

By product class, 71 (68%) are oil wells and 5 (5%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Vorwerk 1 in Mountrail, ND at 13,253 ft. The wells listed below sit in Mountrail (ND), Dawson (MT), Golden Valley (ND), Big Horn (WY), Mclean (ND) and Converse (WY) 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 Empire State Oil

Wells operated by Empire State Oil
WellAPI # / state IDStatusTypeLocationOperatorDepth
Vorwerk 133-061-00181Plugged & abandonedOilMountrail, NDEmpire State Oil Co.13,253 ft
Hathaway Co. 125-021-05076Plugged & abandonedOther typeDawson, MTEmpire State Oil Co.9,351 ft
U.S. Government 11-133-033-00034Plugged & abandonedOilGolden Valley, NDEmpire State Oil Co.9,161 ft
Kost 149-003-05277Plugged & abandonedOilBig Horn, WYEmpire State Oil8,879 ft
John O. Bartelson-State 133-061-00182Plugged & abandonedOilMountrail, NDEmpire State Oil Co.8,606 ft
E. M. Youngbear Sanderson 133-055-00010Plugged & abandonedOilMclean, NDEmpire State Oil Co.8,594 ft
Shawnee 149-009-05227Plugged & abandonedOilConverse, WYEmpire State Oil7,450 ft
Shawnee 249-009-05228Plugged & abandonedOilConverse, WYEmpire State Oil7,150 ft
Gaenslen 9-125-091-21128Plugged & abandonedOther typeSheridan, MTEmpire State Oil Co.7,100 ft
Federal 249-003-05214Plugged & abandonedOilBig Horn, WYEmpire State Oil6,960 ft
Byron Southeast 249-003-05912Plugged & abandonedOilBig Horn, WYEmpire State Oil6,952 ft
Dixon 19-149-027-20149Plugged & abandonedOilNiobrara, WYEmpire State Oil6,805 ft

Deepest first where depth is published. See all 104 wells →

Frequently asked questions

How many wells does Empire State Oil operate?

Empire State Oil is the operator of record for 104 catalogued oil & gas wells, with the largest concentration in Wyoming (66). Only wells in states WellCensus has ingested are counted.

How many of Empire State Oil's wells are still active?

0 of Empire State Oil's catalogued wells are active; 101 are plugged & abandoned.

In which states does Empire State Oil operate wells?

Empire State Oil is the operator of record for wells in Wyoming (66), Montana (23), California (10) and North Dakota (5).

Does Empire State Oil operate mostly oil or gas wells?

71 of Empire State Oil's catalogued wells are oil wells and 5 are gas wells; the rest are injection, service or unclassified wells.

What is Empire State Oil's deepest well?

Among wells with a published depth, Vorwerk 1 in Mountrail, ND is the deepest at 13,253 ft.

Where Empire State 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, “Empire State Oil — well portfolio”, https://wellcensus.com/operators/empire-state-oil-4699 (data as of October 10, 2026).

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