Dorchester Exploration

Operator of record for 21 catalogued wells across 6 states. Every well below links to its full registry page.

Filed as: DORCHESTER EXPLORATION INC · DORCHESTER EXPLORATION, INC. · DORCHESTER EXPLORATION,INC. · Dorchester Exploration Inc · …

At a glance

Dorchester Exploration is the operator of record for 21 catalogued U.S. oil & gas wells in 6 states. None is listed as active, 17 (81%) are plugged & abandoned. Its largest concentration is in North Dakota, with 6 wells (29% of its portfolio).

Wells operated

Active

Plugged

Orphaned

Portfolio by state

State	Wells
North Dakota	6
Louisiana	5
Montana	4
Arkansas	3
Wyoming	2
Oklahoma	1

Well mix

Oil wells: 10
Gas wells: 0
Shut-in: 0
Active share: 0%

Is this your company?

Claim Dorchester Exploration to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.

Claim your operator profile

Where does Dorchester Exploration operate?

Dorchester Exploration's catalogued wells are spread across 6 states: North Dakota (6), Louisiana (5), Montana (4), Arkansas (3) and Wyoming (2) and 1 more. Its 6 North Dakota wells are 0.0% 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 Dorchester Exploration’s wells are active, plugged or orphaned?

0% of Dorchester Exploration's catalogued wells are active, 29 percentage points below the national share of 29%. 81% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.

What kinds of wells does Dorchester Exploration operate?

By product class, 10 (48%) 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 17600 Tusc Ra Sup;brec 001 in East Baton Rouge, LA at 19,965 ft. The wells listed below sit in East Baton Rouge (LA), Campbell (WY), St Landry (LA), Lafayette (AR), Miller (AR) and Niobrara (WY) and other counties. State filings spell the name 5 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Dorchester Exploration

Wells operated by Dorchester Exploration
Well	API # / state ID	Status	Type	Location	Operator	Depth
17600 Tusc Ra Sup;brec 001	17-033-20131	Plugged & abandoned	Other type	East Baton Rouge, LA	Dorchester Exploration,inc.	19,965 ft
Gruenenfelder 1	49-005-25704	Plugged & abandoned	Oil	Campbell, WY	Dorchester Exploration Inc	10,837 ft
J P Barry Etal 001	17-097-20251	Plugged & abandoned	Other type	St Landry, LA	Dorchester Exploration,inc.	9,898 ft
Williams, Billy 1	03-073-10631	Plugged & abandoned	Oil	Lafayette, AR	Dorchester Exploration Inc	7,753 ft
Pelton-Hemperly 1	03-091-10504	Plugged & abandoned	Oil	Miller, AR	Dorchester Exploration Inc	6,215 ft
Burton 1	03-073-10949	Other status	Other type	Lafayette, AR	Dorchester Exploration Inc	6,200 ft
Federal 1-19	49-027-20496	Plugged & abandoned	Oil	Niobrara, WY	Dorchester Exploration Inc	5,128 ft
Mcdonald 21-29	33-009-01629	Plugged & abandoned	Oil	Bottineau, ND	Dorchester Exploration, Inc.	4,150 ft
Thorenson 22-7	33-009-01630	Plugged & abandoned	Oil	Bottineau, ND	Dorchester Exploration, Inc.	3,533 ft
Tvedt 44-8	33-009-01633	Plugged & abandoned	Oil	Bottineau, ND	Dorchester Exploration, Inc.	3,525 ft
Boll 33-17	33-009-01632	Plugged & abandoned	Oil	Bottineau, ND	Dorchester Exploration, Inc.	3,515 ft
Strom 44-5	33-009-01631	Plugged & abandoned	Oil	Bottineau, ND	Dorchester Exploration, Inc.	3,468 ft

Deepest first where depth is published. See all 21 wells →

Frequently asked questions

How many wells does Dorchester Exploration operate?

Dorchester Exploration is the operator of record for 21 catalogued oil & gas wells, with the largest concentration in North Dakota (6). Only wells in states WellCensus has ingested are counted.

How many of Dorchester Exploration's wells are still active?

0 of Dorchester Exploration's catalogued wells are active; 17 are plugged & abandoned.

In which states does Dorchester Exploration operate wells?

Dorchester Exploration is the operator of record for wells in North Dakota (6), Louisiana (5), Montana (4), Arkansas (3), Wyoming (2) and Oklahoma (1).

Does Dorchester Exploration operate mostly oil or gas wells?

10 of Dorchester Exploration's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.

What is Dorchester Exploration's deepest well?

Among wells with a published depth, 17600 Tusc Ra Sup;brec 001 in East Baton Rouge, LA is the deepest at 19,965 ft.

Where Dorchester Exploration'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, “Dorchester Exploration — well portfolio”, https://wellcensus.com/operators/dorchester-exploration-11036 (data as of October 10, 2026).

Dataset updated October 2026 . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).