Sierra Trading
Operator of record for 29 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: SIERRA TRADING CORPORATION · Sierra Trading Co
At a glance
Sierra Trading is the operator of record for 29 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 29 (100%) are plugged & abandoned. Its largest concentration is in Wyoming, with 28 wells (97% of its portfolio).
Wells operated
29
Active
0
Plugged
29
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Wyoming | 28 |
| Montana | 1 |
Well mix
- Oil wells
- 26
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Sierra Trading to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Sierra Trading operate?
Sierra Trading's catalogued wells are spread across 2 states: Wyoming (28) and Montana (1). Its 28 Wyoming wells are 0.0% of the 129,957 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 Sierra Trading’s wells are active, plugged or orphaned?
0% of Sierra Trading'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 Sierra Trading operate?
By product class, 26 (90%) are oil wells and 1 (3%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Kennedy 1-11 in Campbell, WY at 8,052 ft. The wells listed below sit in Campbell (WY), Weston (WY), Niobrara (WY), Rosebud (MT) and Big Horn (WY). 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 Sierra Trading
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Kennedy 1-11 | 49-005-21329 | Plugged & abandoned | Oil | Campbell, WY | Sierra Trading Corporation | 8,052 ft |
| Thompson Ranch 31-28 | 49-045-20357 | Plugged & abandoned | Oil | Weston, WY | Sierra Trading Corporation | 7,550 ft |
| Jackson 21-6 | 49-045-20361 | Plugged & abandoned | Oil | Weston, WY | Sierra Trading Corporation | 6,900 ft |
| Thompson Ranch 31-33 | 49-027-20048 | Plugged & abandoned | Oil | Niobrara, WY | Sierra Trading Corporation | 6,249 ft |
| Federal-Grieves 2-10 | 49-045-20395 | Plugged & abandoned | Oil | Weston, WY | Sierra Trading Corporation | 5,880 ft |
| Erp State 67-16612 1-36 | 49-005-21327 | Plugged & abandoned | Injection | Campbell, WY | Sierra Trading Corporation | 5,663 ft |
| Pfister 1-6 | 49-027-20060 | Plugged & abandoned | Oil | Niobrara, WY | Sierra Trading Corporation | 5,395 ft |
| Federal 1-19 | 49-027-20069 | Plugged & abandoned | Oil | Niobrara, WY | Sierra Trading Corporation | 5,115 ft |
| Harstad 12-28 | 25-087-21079 | Plugged & abandoned | Other type | Rosebud, MT | Sierra Trading Co | 5,065 ft |
| Warner 24-35 | 49-045-20215 | Plugged & abandoned | Oil | Weston, WY | Sierra Trading Corporation | 4,700 ft |
| Rasmussen 4-26 | 49-003-20162 | Plugged & abandoned | Oil | Big Horn, WY | Sierra Trading Corporation | 4,677 ft |
| Federal 1-31 | 49-003-20120 | Plugged & abandoned | Oil | Big Horn, WY | Sierra Trading Corporation | 4,643 ft |
Deepest first where depth is published. See all 29 wells →
Frequently asked questions
How many wells does Sierra Trading operate?
Sierra Trading is the operator of record for 29 catalogued oil & gas wells, with the largest concentration in Wyoming (28). Only wells in states WellCensus has ingested are counted.
How many of Sierra Trading's wells are still active?
0 of Sierra Trading's catalogued wells are active; 29 are plugged & abandoned.
In which states does Sierra Trading operate wells?
Sierra Trading is the operator of record for wells in Wyoming (28) and Montana (1).
Does Sierra Trading operate mostly oil or gas wells?
26 of Sierra Trading's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Sierra Trading's deepest well?
Among wells with a published depth, Kennedy 1-11 in Campbell, WY is the deepest at 8,052 ft.
Where Sierra Trading'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, “Sierra Trading — well portfolio”, https://wellcensus.com/operators/sierra-trading-30883 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).