Apex Energy
Operator of record for 15 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: APEX ENERGY INC · APEX ENERGY, L.L.C. · Apex Energy LLC · Apex Energy, L.L.C.
At a glance
Apex Energy is the operator of record for 15 catalogued U.S. oil & gas wells in 3 states. 7 (47%) are active, 2 (13%) plugged & abandoned. Its largest concentration is in Montana, with 12 wells (80% of its portfolio).
Wells operated
15
Active
7
Plugged
2
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Montana | 12 |
| Oklahoma | 2 |
| North Dakota | 1 |
Well mix
- Oil wells
- 13
- Gas wells
- 1
- Shut-in
- 4
- Active share
- 47%
Is this your company?
Claim Apex Energy to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Apex Energy operate?
Apex Energy's catalogued wells are spread across 3 states: Montana (12), Oklahoma (2) and North Dakota (1). Its 12 Montana wells are 0.0% of the 42,011 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 Apex Energy’s wells are active, plugged or orphaned?
47% of Apex Energy's catalogued wells are active, 18 percentage points above the national share of 29%. 13% are plugged & abandoned, against 47% nationally. 4 wells (27%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Apex Energy operate?
By product class, 13 (87%) 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 A. Engen 1 in Richland, MT at 12,875 ft. The wells listed below sit in Richland (MT) and Dawson (MT). State filings spell the name 4 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Apex Energy
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| A. Engen 1 | 25-083-21060 | Active | Oil | Richland, MT | Apex Energy LLC | 12,875 ft |
| Engen 1-A | 25-083-21696 | Shut-in | Oil | Richland, MT | Apex Energy LLC | 12,852 ft |
| Vanderhoof 1-20 | 25-083-21673 | Shut-in | Oil | Richland, MT | Apex Energy LLC | 12,850 ft |
| Sundheim 29-1 | 25-083-21561 | Active | Oil | Richland, MT | Apex Energy LLC | 12,837 ft |
| Lois Roberta Bailey 32-2 | 25-083-21660 | Active | Oil | Richland, MT | Apex Energy LLC | 12,710 ft |
| FLB Spokane 1 | 25-083-21188 | Shut-in | Oil | Richland, MT | Apex Energy LLC | 12,565 ft |
| Buxaum #1 | 25-021-21069 | Shut-in | Oil | Dawson, MT | Apex Energy LLC | 11,892 ft |
| Fort Gilbert 8 | 25-083-21573 | Active | Oil | Richland, MT | Apex Energy LLC | 9,662 ft |
| Fisher 28-24 | 25-083-21267 | Plugged & abandoned | Oil | Richland, MT | Apex Energy, L.L.C. | 9,450 ft |
| Propp 10-41X | 25-083-21598 | Active | Oil | Richland, MT | Apex Energy LLC | 9,407 ft |
| Iverson 1-13 | 25-083-21521 | Active | Oil | Richland, MT | Apex Energy LLC | 9,363 ft |
| FLB Spokane 4 | 25-083-21700 | Active | Oil | Richland, MT | Apex Energy LLC | 9,280 ft |
Deepest first where depth is published. See all 15 wells →
Frequently asked questions
How many wells does Apex Energy operate?
Apex Energy is the operator of record for 15 catalogued oil & gas wells, with the largest concentration in Montana (12). Only wells in states WellCensus has ingested are counted.
How many of Apex Energy's wells are still active?
7 of Apex Energy's catalogued wells are active; 2 are plugged & abandoned.
In which states does Apex Energy operate wells?
Apex Energy is the operator of record for wells in Montana (12), Oklahoma (2) and North Dakota (1).
Does Apex Energy operate mostly oil or gas wells?
13 of Apex Energy's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Apex Energy's deepest well?
Among wells with a published depth, A. Engen 1 in Richland, MT is the deepest at 12,875 ft.
Where Apex 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, “Apex Energy — well portfolio”, https://wellcensus.com/operators/apex-energy-15064 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).