Sierra Energy
Operator of record for 36 catalogued wells across 2 states. Every well below links to its full registry page.
Filed as: Sierra Energy Co. · Sierra Energy Company
At a glance
Sierra Energy is the operator of record for 36 catalogued U.S. oil & gas wells in 2 states. None is listed as active, 15 (42%) are plugged & abandoned and 16 flagged as orphaned. Its largest concentration is in Illinois, with 33 wells (92% of its portfolio).
Wells operated
36
Active
0
Plugged
15
Orphaned
16
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 33 |
| California | 3 |
Well mix
- Oil wells
- 1
- Gas wells
- 17
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Sierra Energy to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Sierra Energy operate?
Sierra Energy's catalogued wells are spread across 2 states: Illinois (33) and California (3). Its 33 Illinois wells are 0.0% of the 174,478 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 Energy’s wells are active, plugged or orphaned?
0% of Sierra Energy's catalogued wells are active, 29 percentage points below the national share of 29%. 42% are plugged & abandoned, against 47% nationally. 16 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Sierra Energy operate?
By product class, 1 (3%) are oil wells and 17 (47%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Campbell, Norman 1 in Macoupin, IL at 618 ft. 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 Energy
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Campbell, Norman 1 | 12-117-22846 | Plugged & abandoned | Other type | Macoupin, IL | Sierra Energy Co. | 618 ft |
| Gillespie, Gerald W. 2-S | 12-117-22777 | Orphaned | Other type | Macoupin, IL | Sierra Energy Co. | 614 ft |
| Bruhn, Melvin 1 | 12-117-22810 | Orphaned | Gas | Macoupin, IL | Sierra Energy Co. | 530 ft |
| Snedeker, Marcus E. 1 | 12-117-22741 | Plugged & abandoned | Other type | Macoupin, IL | Sierra Energy Co. | 495 ft |
| Newby, Alpheus 1-S | 12-117-22727 | Plugged & abandoned | Other type | Macoupin, IL | Sierra Energy Co. | 488 ft |
| Krause, George 2 | 12-117-22759 | Plugged & abandoned | Other type | Macoupin, IL | Sierra Energy Co. | 487 ft |
| Pittman 1-S | 12-117-22718 | Orphaned | Gas | Macoupin, IL | Sierra Energy Co. | 474 ft |
| Blackburn Univ. 4 | 12-117-22799 | Other status | Gas | Macoupin, IL | Sierra Energy Co. | 463 ft |
| Adams, Donald R. 1 | 12-117-22743 | Orphaned | Gas | Macoupin, IL | Sierra Energy Co. | 460 ft |
| Haley-Krause 1-S | 12-117-22726 | Orphaned | Gas | Macoupin, IL | Sierra Energy Co. | 454 ft |
| Blackburn University 1 | 12-117-22793 | Other status | Gas | Macoupin, IL | Sierra Energy Co. | 454 ft |
| Snedeker, Marcus E. 2 | 12-117-22742 | Orphaned | Gas | Macoupin, IL | Sierra Energy Co. | 450 ft |
Deepest first where depth is published. See all 36 wells →
Frequently asked questions
How many wells does Sierra Energy operate?
Sierra Energy is the operator of record for 36 catalogued oil & gas wells, with the largest concentration in Illinois (33). Only wells in states WellCensus has ingested are counted.
How many of Sierra Energy's wells are still active?
0 of Sierra Energy's catalogued wells are active; 15 are plugged & abandoned and 16 are flagged as orphaned.
In which states does Sierra Energy operate wells?
Sierra Energy is the operator of record for wells in Illinois (33) and California (3).
Does Sierra Energy operate mostly oil or gas wells?
1 of Sierra Energy's catalogued wells are oil wells and 17 are gas wells; the rest are injection, service or unclassified wells.
What is Sierra Energy's deepest well?
Among wells with a published depth, Campbell, Norman 1 in Macoupin, IL is the deepest at 618 ft.
Where Sierra Energy'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 Energy — well portfolio”, https://wellcensus.com/operators/sierra-energy-15378 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).