MT
Petrolia Reservoir
LakeMT
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About this water
Petrolia Reservoir is a reservoir in Montana. State records show it stocked 32 times between 2000 and 2025. The most-stocked species are walleye, rainbow trout and yellow perch. 718,699 walleye have gone in across 25 releases.
Stocking history
32 recorded stockings
| Date | Species | Number | Size | Hatchery |
|---|---|---|---|---|
| Jun 24, 2025 | Walleye · Fort Peck | 9,399 | 1.4" | Fort Peck Hatchery |
| Jun 24, 2025 | Walleye · Fort Peck | 9,399 | 1.4" | Fort Peck Hatchery |
| Jun 26, 2024 | Walleye · Fort Peck | 22,262 | 1.5" | Fort Peck Hatchery |
| Jul 13, 2023 | Walleye · Fort Peck | 20,572 | 2.4" | Fort Peck Hatchery |
| Jul 5, 2022 | Walleye · Fort Peck | 20,824 | 1.5" | Fort Peck Hatchery |
| Jun 30, 2022 | Yellow Perch · Wild | 32,190 | 0.8" | Miles City Fish Hatchery |
| Jun 10, 2022 | Rainbow Trout · Arlee | 994 | 5.8" | Big Springs Trout Hatchery |
| Jul 6, 2021 | Walleye · Fort Peck | 20,048 | 1.8" | Fort Peck Hatchery |
| Jun 17, 2021 | Rainbow Trout · Arlee X Erwin - Ennis | 2,624 | 8.6" | Big Springs Trout Hatchery |
| Jun 18, 2020 | Walleye · Fort Peck | 20,252 | 1.8" | Fort Peck Hatchery |
| Jun 19, 2019 | Walleye · Fort Peck | 21,593 | 1.4" | Fort Peck Hatchery |
| Jul 3, 2018 | Walleye · Fort Peck | 7,605 | 2.3" | Fort Peck Hatchery |
Showing the 12 most recent of 32. Stocking records for Petrolia Reservoir published by Montana Fish, Wildlife & Parks. Stocking does not guarantee fish are present. Check current regulations and access before you go. See the full Montana stocking report.
