Best well drillers in Lyon County, Iowa
Not a pay-to-play list: these are the 17 drilling companies with wells on record in Lyon County, ranked by wells actually drilled here — 930 logged wells in the Iowa DNR Well Information System (IWIS) (records as of 2026-08-24). Every number links back to the public record.
| # | Company | In Lyon Co. since 2016 | All-time in county | Statewide |
|---|---|---|---|---|
| 1 | Thein,Robert - 5442 | 21 | 72 | 96 |
| 2 | Vandebrake,Larry - 5578 | 14 | 50 | 489 |
| 3 | Merriman,Larry - 3996 | 6 | 24 | 298 |
| 4 | Hoogland,Barry - 10091 | 4 | 7 | 63 |
| 5 | * Unknown, - | 1 | 693 | 96,967 |
| 6 | Wernimont,Gary - 6669 | 1 | 1 | 593 |
| 7 | Vandebrake,Larry - 40074 | — | 50 | 402 |
| 8 | Alton Well & Concrete Co., Inc. | — | 10 | 92 |
| 9 | Vanthul,Duane - 40330 | — | 8 | 26 |
| 10 | Hammond,Richard - 2829 | — | 5 | 68 |
| 11 | Steece,Larry - 5273 | — | 4 | 278 |
| 12 | * Owner, - | — | 1 | 733 |
| 13 | Swenson,Robert - 6466 | — | 1 | 31 |
| 14 | Middendorff,Craig - 4021 | — | 1 | 561 |
| 15 | Merriman,Larry - 40075 | — | 1 | 125 |
| 16 | Hammond,Richard - 40551 | — | 1 | 37 |
| 17 | Adams,Michael - 7432 | — | 1 | 31 |
Ranked by wells drilled in Lyon County since 2016 (then all-time), from the full Iowa DNR 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 Lyon County?
Thein,Robert - 5442 has drilled the most Lyon County wells in the recent record — 21 since 2016, 72 in the county all-time.
How many well drilling companies work in Lyon County?
17 companies in the Iowa DNR record have drilled wells in Lyon County; 7 of them have drilled somewhere in Iowa since 2022. Smaller operators below the record threshold may also serve the area.
How deep is a typical well in Lyon County?
The median drilled depth in Lyon County is 50 ft, based on 1,354 recorded wells. Depths, water levels, and yields are on the Lyon County wells page.
Well depths, static water levels, tested yields, and drilling cost estimates for this county live on the Lyon County wells page.
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