Elm Ridge Exploration
Operator of record for 293 catalogued wells across 5 states. Every well below links to its full registry page.
Filed as: ELM RIDGE EXPLORATION CO LLC · ELM RIDGE EXPLORATION COMPANY LLC · Elm Ridge Exploration Company
At a glance
Elm Ridge Exploration is the operator of record for 293 catalogued U.S. oil & gas wells in 5 states. None is listed as active, 241 (82%) are plugged & abandoned. Its largest concentration is in New Mexico, with 246 wells (84% of its portfolio).
Wells operated
293
Active
0
Plugged
241
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| New Mexico | 246 |
| Colorado | 33 |
| Utah | 12 |
| Oklahoma | 1 |
| Wyoming | 1 |
Well mix
- Oil wells
- 165
- Gas wells
- 72
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Elm Ridge Exploration to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Elm Ridge Exploration operate?
Elm Ridge Exploration's catalogued wells are spread across 5 states: New Mexico (246), Colorado (33), Utah (12), Oklahoma (1) and Wyoming (1). Its 246 New Mexico wells are 0.2% of the 141,088 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 Elm Ridge Exploration’s wells are active, plugged or orphaned?
0% of Elm Ridge Exploration's catalogued wells are active, 29 percentage points below the national share of 29%. 82% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Elm Ridge Exploration operate?
By product class, 165 (56%) are oil wells and 72 (25%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Berry Federal #004 in San Juan, NM at 99,999 ft. The wells listed below sit in San Juan (NM), Rio Arriba (NM), Natrona (WY) and La Plata (CO). 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 Elm Ridge Exploration
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Berry Federal #004 | 30-045-33917 | Plugged & abandoned | Oil | San Juan, NM | Elm Ridge Exploration Company LLC | 99,999 ft |
| South Bisti Gallup 21p #001 | 30-045-34142 | Plugged & abandoned | Oil | San Juan, NM | Elm Ridge Exploration Company LLC | 99,999 ft |
| Bisti Gallup 29 #011 | 30-045-34157 | Plugged & abandoned | Oil | San Juan, NM | Elm Ridge Exploration Company LLC | 99,999 ft |
| South Carson Federal 23 #011 | 30-045-34244 | Plugged & abandoned | Oil | San Juan, NM | Elm Ridge Exploration Company LLC | 99,999 ft |
| Apache Federal #012e | 30-039-22674 | Plugged & abandoned | Gas | Rio Arriba, NM | Elm Ridge Exploration Company LLC | 99,999 ft |
| Carson Unit #044 | 30-045-28120 | Plugged & abandoned | Oil | San Juan, NM | Elm Ridge Exploration Company LLC | 99,999 ft |
| Carson Unit #113 | 30-045-05361 | Plugged & abandoned | Gas | San Juan, NM | Elm Ridge Exploration Company LLC | 11,430 ft |
| Sullivan 14-1 | 49-025-23587 | Plugged & abandoned | Gas | Natrona, WY | Elm Ridge Exploration Co LLC | 8,703 ft |
| 3 Ford Olson A | 05-067-08919 | Plugged & abandoned | Gas | La Plata, CO | Elm Ridge Exploration Company LLC | 8,272 ft |
| 410 Igw | 05-067-09153 | Plugged & abandoned | Gas | La Plata, CO | Elm Ridge Exploration Company LLC | 8,219 ft |
| 401 Ige | 05-067-09023 | Plugged & abandoned | Gas | La Plata, CO | Elm Ridge Exploration Company LLC | 8,195 ft |
| 1a Miller | 05-067-08714 | Plugged & abandoned | Gas | La Plata, CO | Elm Ridge Exploration Company LLC | 8,170 ft |
Deepest first where depth is published. See all 293 wells →
Frequently asked questions
How many wells does Elm Ridge Exploration operate?
Elm Ridge Exploration is the operator of record for 293 catalogued oil & gas wells, with the largest concentration in New Mexico (246). Only wells in states WellCensus has ingested are counted.
How many of Elm Ridge Exploration's wells are still active?
0 of Elm Ridge Exploration's catalogued wells are active; 241 are plugged & abandoned.
In which states does Elm Ridge Exploration operate wells?
Elm Ridge Exploration is the operator of record for wells in New Mexico (246), Colorado (33), Utah (12), Oklahoma (1) and Wyoming (1).
Does Elm Ridge Exploration operate mostly oil or gas wells?
165 of Elm Ridge Exploration's catalogued wells are oil wells and 72 are gas wells; the rest are injection, service or unclassified wells.
What is Elm Ridge Exploration's deepest well?
Among wells with a published depth, Berry Federal #004 in San Juan, NM is the deepest at 99,999 ft.
Where Elm Ridge Exploration's wells are
- Oil & gas wells in New Mexico· 246 operated by Elm Ridge Exploration
- Oil & gas wells in Colorado· 33 operated by Elm Ridge Exploration
- Oil & gas wells in Utah· 12 operated by Elm Ridge Exploration
- Oil & gas wells in Oklahoma· 1 operated by Elm Ridge Exploration
- Oil & gas wells in Wyoming· 1 operated by Elm Ridge Exploration
- Largest U.S. well operators
- All well operators
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, “Elm Ridge Exploration — well portfolio”, https://wellcensus.com/operators/elm-ridge-exploration-2581 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).