Humble Oil & Refining

Operator of record for 897 catalogued wells across 12 states. Every well below links to its full registry page.

Filed as: HUMBLE OIL & REFINING · HUMBLE OIL & REFINING CO · HUMBLE OIL & REFINING CO. · HUMBLE OIL & REFINING COMPANY · …

At a glance

Humble Oil & Refining is the operator of record for 897 catalogued U.S. oil & gas wells in 12 states. 43 (5%) are active, 820 (91%) plugged & abandoned and 11 flagged as orphaned. Its largest concentration is in Mississippi, with 505 wells (56% of its portfolio).

Wells operated

897

Active

Plugged

820

Orphaned

Portfolio by state

State	Wells
Mississippi	505
Illinois	182
Utah	90
Wyoming	47
Kentucky	14
Alabama	13
Colorado	13
California	9
Montana	9
New York	8
North Dakota	4
New Mexico	3

Well mix

Oil wells: 267
Gas wells: 85
Shut-in: 0
Active share: 5%

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Where does Humble Oil & Refining operate?

Humble Oil & Refining's catalogued wells are spread across 12 states: Mississippi (505), Illinois (182), Utah (90), Wyoming (47) and Kentucky (14) and 7 more. Its 505 Mississippi wells are 1% of the 34,924 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 Humble Oil & Refining’s wells are active, plugged or orphaned?

5% of Humble Oil & Refining's catalogued wells are active, 24 percentage points below the national share of 29%. 91% are plugged & abandoned, against 47% nationally. 11 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.

What kinds of wells does Humble Oil & Refining operate?

By product class, 267 (30%) are oil wells and 85 (9%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is 1 Uravan Unit in Montrose, CO at 18,354 ft. The wells listed below sit in Montrose (CO), Converse (WY), Hancock (MS), Clarke (AL), Glacier (MT) and Fremont (WY) and other counties. State filings spell the name 7 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.

Notable wells operated by Humble Oil & Refining

Wells operated by Humble Oil & Refining
Well	API # / state ID	Status	Type	Location	Operator	Depth
1 Uravan Unit	05-085-05032	Plugged & abandoned	Other type	Montrose, CO	Humble Oil & Refining Company	18,354 ft
Hornbeck Unit 1	49-009-20047	Plugged & abandoned	Oil	Converse, WY	Humble Oil & Refining	16,800 ft
International Paper Co.-Alexander # 3 # 3	23-045-00053	Plugged & abandoned	Other type	Hancock, MS	Humble Oil & Refining Co.	16,484 ft
Gustave Baldwin Etl 1 1	23-045-00010	Plugged & abandoned	Other type	Hancock, MS	Humble Oil & Refining Co.	15,507 ft
Champion-Klefac et al #1	01-025-19963	Plugged & abandoned	Other type	Clarke, AL	Humble Oil & Refining Co.	15,350 ft
Govt-E Garrett 1	49-009-06466	Plugged & abandoned	Oil	Converse, WY	Humble Oil & Refining	14,606 ft
Blackfeet-Tribal 75-1	25-035-21092	Plugged & abandoned	Other type	Glacier, MT	Humble Oil & Refining Co.	14,519 ft
John Koenenn 1 1	23-045-20001	Plugged & abandoned	Other type	Hancock, MS	Humble Oil & Refining Co.	14,081 ft
Shoshone-Arapahoe 1	49-013-07013	Plugged & abandoned	Oil	Fremont, WY	Humble Oil & Refining	14,000 ft
S A Tribal-Tract 36 1	49-013-07020	Plugged & abandoned	Oil	Fremont, WY	Humble Oil & Refining	13,797 ft
E B Richmond Gas Un 1 1	23-147-20025	Plugged & abandoned	Other type	Walthall, MS	Humble Oil & Refining Co.	13,390 ft
Richard P. Baer, Ii Et Al #1	01-003-19988	Plugged & abandoned	Other type	Baldwin, AL	Humble Oil & Refining Co.	13,005 ft

Deepest first where depth is published. See all 897 wells →

Frequently asked questions

How many wells does Humble Oil & Refining operate?

Humble Oil & Refining is the operator of record for 897 catalogued oil & gas wells, with the largest concentration in Mississippi (505). Only wells in states WellCensus has ingested are counted.

How many of Humble Oil & Refining's wells are still active?

43 of Humble Oil & Refining's catalogued wells are active; 820 are plugged & abandoned and 11 are flagged as orphaned.

In which states does Humble Oil & Refining operate wells?

Humble Oil & Refining is the operator of record for wells in Mississippi (505), Illinois (182), Utah (90), Wyoming (47), Kentucky (14), Alabama (13), Colorado (13), California (9), Montana (9), New York (8), North Dakota (4) and New Mexico (3).

Does Humble Oil & Refining operate mostly oil or gas wells?

267 of Humble Oil & Refining's catalogued wells are oil wells and 85 are gas wells; the rest are injection, service or unclassified wells.

What is Humble Oil & Refining's deepest well?

Among wells with a published depth, 1 Uravan Unit in Montrose, CO is the deepest at 18,354 ft.

Where Humble Oil & Refining'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, “Humble Oil & Refining — well portfolio”, https://wellcensus.com/operators/humble-oil-refining-2395 (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).