Best well drillers in Custer County, Montana
Not a pay-to-play list: these are the 47 drilling companies with wells on record in Custer County, ranked by wells actually drilled here — 2,207 logged wells in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC) (records as of 2026-07-27). Every number links back to the public record.
Ranked by wells drilled in Custer County since 2016 (then all-time), from the full GWIC record. A ★ marks a featured sponsor — sponsors must appear in the county record to be listed, and the ranking below them is never reordered.
Who drills the most wells in Custer County?
Askin Drilling has drilled the most Custer County wells in the recent record — 285 since 2016, 881 in the county all-time.
How many well drilling companies work in Custer County?
47 companies in the GWIC record have drilled wells in Custer County; 18 of them have drilled somewhere in Montana since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Custer County?
The median drilled depth in Custer County is 180 ft, based on 3,225 recorded wells. Depths, water levels, and yields are on the Custer County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Custer County wells page.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Custer County — never sold elsewhere.
Drill in Custer County?
If your company is on this list, your profile is free to claim — confirm your details and add your contact information so Custer County property owners reach you directly.
Claim your profileFree to claim · built from GWIC public well-log records.