Los Nietos
Operator of record for 18 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: LOS NIETOS COMPANY · Los Nietos Co.
At a glance
Los Nietos is the operator of record for 18 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 18 (100%) are plugged & abandoned. Its largest concentration is in California, with 14 wells (78% of its portfolio).
Wells operated
18
Active
0
Plugged
18
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| California | 14 |
| Colorado | 3 |
| Mississippi | 1 |
Well mix
- Oil wells
- 9
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim Los Nietos to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Los Nietos operate?
Los Nietos's catalogued wells are spread across 3 states: California (14), Colorado (3) and Mississippi (1). Its 14 California wells are 0.0% of the 242,471 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 Los Nietos’s wells are active, plugged or orphaned?
0% of Los Nietos's catalogued wells are active, 29 percentage points below the national share of 29%. 100% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Los Nietos operate?
By product class, 9 (50%) 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 1 Leasure in Adams, CO at 6,380 ft. The wells listed below sit in Adams (CO), San Luis Obispo (CA), Santa Barbara (CA) and Kern (CA). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Los Nietos
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 1 Leasure | 05-001-05361 | Plugged & abandoned | Other type | Adams, CO | Los Nietos Company | 6,380 ft |
| 1 Burkhart | 05-001-05356 | Plugged & abandoned | Other type | Adams, CO | Los Nietos Company | 6,325 ft |
| 1 Currier | 05-001-05404 | Plugged & abandoned | Other type | Adams, CO | Los Nietos Company | 6,290 ft |
| Lowther 1 | 04-079-00655 | Plugged & abandoned | Oil | San Luis Obispo, CA | Los Nietos Co. | — |
| Leroy A-3 | 04-083-04115 | Plugged & abandoned | Other type | Santa Barbara, CA | Los Nietos Co. | — |
| Curletti 41-X | 04-083-00914 | Plugged & abandoned | Oil | Santa Barbara, CA | Los Nietos Co. | — |
| Couzza-Portals 1 | 04-029-06067 | Plugged & abandoned | Oil | Kern, CA | Los Nietos Co. | — |
| Richardson 77X-7 | 04-029-39377 | Plugged & abandoned | Oil | Kern, CA | Los Nietos Co. | — |
| Richardson 81-18 | 04-029-39378 | Plugged & abandoned | Oil | Kern, CA | Los Nietos Co. | — |
| Sumpf 81-19 | 04-029-39380 | Plugged & abandoned | Other type | Kern, CA | Los Nietos Co. | — |
| Madden 22-34 | 04-083-02471 | Plugged & abandoned | Oil | Santa Barbara, CA | Los Nietos Co. | — |
| Los Nietos-Gulf Philbrick 66X-11 | 04-083-04066 | Plugged & abandoned | Oil | Santa Barbara, CA | Los Nietos Co. | — |
Deepest first where depth is published. See all 18 wells →
Frequently asked questions
How many wells does Los Nietos operate?
Los Nietos is the operator of record for 18 catalogued oil & gas wells, with the largest concentration in California (14). Only wells in states WellCensus has ingested are counted.
How many of Los Nietos's wells are still active?
0 of Los Nietos's catalogued wells are active; 18 are plugged & abandoned.
In which states does Los Nietos operate wells?
Los Nietos is the operator of record for wells in California (14), Colorado (3) and Mississippi (1).
Does Los Nietos operate mostly oil or gas wells?
9 of Los Nietos's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Los Nietos's deepest well?
Among wells with a published depth, 1 Leasure in Adams, CO is the deepest at 6,380 ft.
Where Los Nietos'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, “Los Nietos — well portfolio”, https://wellcensus.com/operators/los-nietos-5365 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).