Oil Pump Reservoir trout stocking
Prairie County, Montana · lake · 2,544 ft elevation
Oil Pump Reservoir was last stocked 6 months ago (May 6, 2026). We have 2 stockings on record since May 13, 2025, 1 in the last 12 months (2,000 fish). Species stocked: rainbow trout.
Last stocked
6 months ago
May 6, 2026
Next planned
Not announced
Last 12 months
1 stocking
2,000 fish
On record
2 stockings
since May 13, 2025
- The second most stocked of 9 waters in Prairie County.
- Stocked about as often as a typical Montana water on our record.
Weather at Oil Pump Reservoir
- This Afternoon64°FMostly Sunnywind 7 mph
- Tonight37°FMostly Cloudy2% rain · wind 6 mph
- Monday55°FMostly Sunnywind 3 to 9 mph
- Monday Night37°FMostly Cloudy8% rain · wind 5 mph
- Tuesday57°FSlight Chance Light Rain15% rain · wind 5 to 13 mph
- Tuesday Night36°FHaze1% rain · wind 7 mph
Forecast from the National Weather Service for this location, refreshed hourly.
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 2 | 4,000 | 2,000 | 2.8 in |
Stocking history
20261 stocking · 2,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 6Latest Wednesday | Rainbow trout | 2,000 | 2.8 in | 358 days | Miles City Fish Hatchery |
20251 stocking · 2,000 fish
| Date | Species | Fish | Size | Since previous | Hatchery |
|---|---|---|---|---|---|
May 13 Tuesday | Rainbow trout | 2,000 | 2.3 in | Miles City Fish Hatchery |
From Montana fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Montana fishing regulations.
Where is Oil Pump Reservoir?
Prairie County, Montana. The marker is the agency's location for this water; streams are often stocked at several access points.
Stocked waters near Oil Pump Reservoir
- Rattlesnake Reservoirlake · 6 mistocked May 6, 2026
- Ayers Pond (; Courtney Ayers Pond)lake · 16 mistocked Aug 15, 2025
- Marshall Reservoirlake · 19 mistocked Apr 9, 2025
- Pruett Pondlake · 20 mistocked May 6, 2026
- Hollecker Lakelake · 21 mistocked May 12, 2026
- Burman Pondlake · 24 mistocked May 6, 2026
- Wibaux Fish Pondlake · 25 mistocked Jun 10, 2026
All stocked waters in Prairie CountyStocked this week in Montana
Questions about Oil Pump Reservoir
- When was Oil Pump Reservoir last stocked?
- The latest reported stocking was May 6, 2026 (rainbow trout, 2,000 fish), according to Montana agency reports.
- How often is Oil Pump Reservoir stocked?
- It was stocked once in the last 12 months.
- Is Oil Pump Reservoir stocked often?
- The second most stocked of 9 waters in Prairie County. Stocked about as often as a typical Montana water on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Oil Pump Reservoir?
- Rainbow trout (2 stockings, 4,000 fish).