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WellCensus

Great Western Drilling

Operator of record for 321 catalogued wells across 10 states. Every well below links to its full registry page.

Filed as: GREAT WESTERN DRILLING · GREAT WESTERN DRILLING CO · GREAT WESTERN DRILLING CO. · GREAT WESTERN DRILLING COMPANY · …

At a glance

Great Western Drilling is the operator of record for 321 catalogued U.S. oil & gas wells in 10 states. 36 (11%) are active, 223 (69%) plugged & abandoned and 4 flagged as orphaned. Its largest concentration is in Kentucky, with 113 wells (35% of its portfolio).

Wells operated

321

Active

36

Plugged

223

Orphaned

4

Portfolio by state

StateWells
Kentucky113
New Mexico47
California34
Colorado34
Wyoming26
North Dakota19
Oklahoma15
West Virginia14
Montana11
Utah8

Well mix

Oil wells
164
Gas wells
29
Shut-in
4
Active share
11%

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Where does Great Western Drilling operate?

Great Western Drilling's catalogued wells are spread across 10 states: Kentucky (113), New Mexico (47), California (34), Colorado (34) and Wyoming (26) and 5 more. Its 113 Kentucky wells are 0.1% of the 201,022 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 Great Western Drilling’s wells are active, plugged or orphaned?

11% of Great Western Drilling's catalogued wells are active, 18 percentage points below the national share of 29%. 69% are plugged & abandoned, against 47% nationally. 4 wells (1%) are shut-in — unplugged but idle. 4 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.

What kinds of wells does Great Western Drilling operate?

By product class, 164 (51%) are oil wells and 29 (9%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Quail Federal #003 in Chaves, NM at 99,999 ft. The wells listed below sit in Chaves (NM), Eddy (NM), Mckenzie (ND), Lea (NM), Campbell (WY) and Slope (ND) and other counties. State filings spell the name 8 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Great Western Drilling

Wells operated by Great Western Drilling
WellAPI # / state IDStatusTypeLocationOperatorDepth
Quail Federal #00330-005-62709Plugged & abandonedGasChaves, NMGreat Western Drilling Co99,999 ft
Hay Hollow Unit #00130-015-21456Plugged & abandonedGasEddy, NMGreat Western Drilling Co99,999 ft
Mabel Hale Federal #00430-015-26792Plugged & abandonedOilEddy, NMGreat Western Drilling Co99,999 ft
Walla 133-053-01485Plugged & abandonedOilMckenzie, NDGreat Western Drilling Co.14,338 ft
Bruins 133-053-01409Plugged & abandonedOilMckenzie, NDGreat Western Drilling Co.14,313 ft
Federal 34 Com #00130-025-35998Plugged & abandonedOilLea, NMGreat Western Drilling Co13,450 ft
Lowe State Com #00130-025-02795Plugged & abandonedGasLea, NMGreat Western Drilling Co12,511 ft
Caballo Muerto 149-005-22719Plugged & abandonedOilCampbell, WYGreat Western Drilling Company10,477 ft
Federal 1-2833-087-00095Plugged & abandonedOilSlope, NDGreat Western Drilling Co.10,450 ft
1 Fort Lewis School Land05-067-05550Plugged & abandonedOther typeLa Plata, COGreat Western Drilling Company10,217 ft
Glenn Lowery Patent 149-005-22903Plugged & abandonedOilCampbell, WYGreat Western Drilling Company9,590 ft
Lynde 149-005-23750Plugged & abandonedOilCampbell, WYGreat Western Drilling Company9,580 ft

Deepest first where depth is published. See all 321 wells →

Frequently asked questions

How many wells does Great Western Drilling operate?

Great Western Drilling is the operator of record for 321 catalogued oil & gas wells, with the largest concentration in Kentucky (113). Only wells in states WellCensus has ingested are counted.

How many of Great Western Drilling's wells are still active?

36 of Great Western Drilling's catalogued wells are active; 223 are plugged & abandoned and 4 are flagged as orphaned.

In which states does Great Western Drilling operate wells?

Great Western Drilling is the operator of record for wells in Kentucky (113), New Mexico (47), California (34), Colorado (34), Wyoming (26), North Dakota (19), Oklahoma (15), West Virginia (14), Montana (11) and Utah (8).

Does Great Western Drilling operate mostly oil or gas wells?

164 of Great Western Drilling's catalogued wells are oil wells and 29 are gas wells; the rest are injection, service or unclassified wells.

What is Great Western Drilling's deepest well?

Among wells with a published depth, Quail Federal #003 in Chaves, NM is the deepest at 99,999 ft.

Where Great Western Drilling'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, “Great Western Drilling — well portfolio”, https://wellcensus.com/operators/great-western-drilling-1587 (data as of October 10, 2026).

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