Chandler Simpson
Operator of record for 15 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: CHANDLER - SIMPSON INC · CHANDLER SIMPSON INC · CHANDLER-SIMPSON, INC.
At a glance
Chandler Simpson is the operator of record for 15 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 15 (100%) are plugged & abandoned. Its largest concentration is in Colorado, with 11 wells (73% of its portfolio).
Wells operated
15
Active
0
Plugged
15
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 11 |
| North Dakota | 3 |
| Wyoming | 1 |
Well mix
- Oil wells
- 6
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Chandler Simpson operate?
Chandler Simpson's catalogued wells are spread across 3 states: Colorado (11), North Dakota (3) and Wyoming (1). Its 11 Colorado wells are 0.0% of the 124,327 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 Chandler Simpson’s wells are active, plugged or orphaned?
0% of Chandler Simpson'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 Chandler Simpson operate?
By product class, 6 (40%) are oil wells and 1 (7%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is 5-30 Government in Rio Blanco, CO at 6,150 ft. The wells listed below sit in Rio Blanco (CO), Washington (CO), Logan (CO), Morgan (CO), Renville (ND) and Big Horn (WY). 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 Chandler Simpson
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 5-30 Government | 05-103-05227 | Plugged & abandoned | Other type | Rio Blanco, CO | Chandler - Simpson Inc | 6,150 ft |
| 1 Jolly | 05-121-05088 | Plugged & abandoned | Other type | Washington, CO | Chandler - Simpson Inc | 5,297 ft |
| 1 Elenz | 05-075-07261 | Plugged & abandoned | Other type | Logan, CO | Chandler - Simpson Inc | 5,270 ft |
| 3 Bosley | 05-087-05062 | Plugged & abandoned | Other type | Morgan, CO | Chandler - Simpson Inc | 5,250 ft |
| 1 Bass | 05-087-05841 | Plugged & abandoned | Oil | Morgan, CO | Chandler - Simpson Inc | 5,159 ft |
| 1-A State | 05-121-05297 | Plugged & abandoned | Other type | Washington, CO | Chandler - Simpson Inc | 5,080 ft |
| 1 Koester | 05-075-06778 | Plugged & abandoned | Other type | Logan, CO | Chandler - Simpson Inc | 5,060 ft |
| 1 Middelstadt | 05-075-06759 | Plugged & abandoned | Oil | Logan, CO | Chandler - Simpson Inc | 4,900 ft |
| Bennie Hurdelbrink 1 | 33-075-00210 | Plugged & abandoned | Oil | Renville, ND | Chandler-Simpson, Inc. | 4,234 ft |
| Grenges-State 1 | 33-075-00189 | Plugged & abandoned | Oil | Renville, ND | Chandler-Simpson, Inc. | 4,200 ft |
| Hurdlebrink 1 | 33-075-00199 | Plugged & abandoned | Oil | Renville, ND | Chandler-Simpson, Inc. | 4,179 ft |
| Empire W-0141044 1 | 49-003-05176 | Plugged & abandoned | Oil | Big Horn, WY | Chandler Simpson Inc | 3,620 ft |
Deepest first where depth is published. See all 15 wells →
Frequently asked questions
How many wells does Chandler Simpson operate?
Chandler Simpson is the operator of record for 15 catalogued oil & gas wells, with the largest concentration in Colorado (11). Only wells in states WellCensus has ingested are counted.
How many of Chandler Simpson's wells are still active?
0 of Chandler Simpson's catalogued wells are active; 15 are plugged & abandoned.
In which states does Chandler Simpson operate wells?
Chandler Simpson is the operator of record for wells in Colorado (11), North Dakota (3) and Wyoming (1).
Does Chandler Simpson operate mostly oil or gas wells?
6 of Chandler Simpson's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Chandler Simpson's deepest well?
Among wells with a published depth, 5-30 Government in Rio Blanco, CO is the deepest at 6,150 ft.
Where Chandler Simpson'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, “Chandler Simpson — well portfolio”, https://wellcensus.com/operators/chandler-simpson-2374 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).