North Dakota Well Data › Sioux County
Sioux County, North Dakota: well logs, drillers & when they were drilled
✓ 385 ND DWR records · verified 2026-08-25
How many wells are on record in Sioux County, North Dakota?
ND DWR holds 385 driller's logs for Sioux County, the earliest from the 1970s and the most recent from the 2020s. 48 of them were drilled since 2016. Each log is a filed document — the depth, the formations and the water the driller found are written on it.
Who drills wells in Sioux County?
57 companies are named on Sioux County well logs. The most active since 2016 is Gregg's Drilling & Excavating with 12 wells, then Opp Well Drilling with 10. The full ranking is below.
How deep are wells in Sioux County?
North Dakota does not publish drilled depth as data — ND DWR's well file has no depth column. The depth of each well is written on the driller's own log, which ND DWR scans and publishes per well. Pull the wells near an address and open their logs to read the depths the drillers actually recorded on this ground.
How much does it cost to drill a well in Sioux County?
We don't publish a Sioux County cost estimate, because the honest input isn't there: cost tracks depth, and North Dakota doesn't publish depth as data. A dollar range built on a depth we don't have would be a guess dressed up as a local number. What we can do is point you at the companies that have actually drilled here — they quote from the same ground, and the logs on this page are their own filings.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Sioux County — never sold elsewhere.
Pull every recorded well near a Sioux County address — $29
When these wells were drilled
Who drills wells in Sioux County?
Companies by number of wells drilled in this county, per the logs North Dakota contractors file with DWR.
| Driller | Wells since 2016 |
|---|---|
| Gregg's Drilling & Excavating | 12 |
| Opp Well Drilling | 10 |
| Knutson Well Drilling Inc. | 3 |
| GREGG'S DRILLING & EXCAVATING | 3 |
| Earth Energy and Water Systems | 2 |
| Northern Plains Drilling | 2 |
| Earth Energy & Water | 2 |
| Gregg's Drilling & Exc. | 2 |
See every driller with wells on record in Sioux County, ranked →
Get quotes from local drillers
See every recorded well near any address — who drilled it, what for, when, and a link to the driller's own filed log for each one — in a one-time report.
Free lookup Property report — $29Method: counts and dates computed from ND DWR records (ND DWR drillers logs, water wells only (test holes, monitoring, dewatering, recovery and cathodic-protection records excluded)). ND DWR publishes no depth, water level or yield as data — those are written on each well's filed log, which we link per well — full methodology & sources.