North Dakota Well Data · Well logs
North Dakota well logs
Every time a well is drilled in North Dakota, the driller files a completion report — the well log — with the North Dakota Department of Water Resources drillers log file. We hold 51,990 of them and rebuild this index weekly, so you can find one by address instead of by record number.
✓ Verified against ND DWR · 2026-08-25
Well logs are filed by location, not by house number. Enter any North Dakota address and we'll pull the recorded wells around it — North Dakota records no street address for a well — location comes from the PLSS site description on the driller's log — so results show the wells around a location rather than a single wellhead.
Free address lookup Full property report — $29What's in a North Dakota well log
Not every filed report carries every field — older logs are thinner, and what the state captured changed over the decades. This is the actual coverage across all 51,990 records, so you know what to expect before you look anything up.
| Field | What it tells you | Records with it | Coverage |
|---|---|---|---|
| Original log document | A direct link to the ND DWR copy of the filed log itself. | 51,990 (100%) | |
| Driller | The licensed company that drilled the well and signed the log. | 51,910 (100%) | |
| Mapped location | Coordinates, so the log can be found by address instead of by record number. | 51,897 (100%) | |
| Date completed | When the well was finished and the log filed. | 51,611 (99%) |
When North Dakota's wells were drilled
Dated logs by decade of completion (51,611 of 51,990 records carry a usable completion date). The shape of this chart is mostly the history of the filing requirement, not of drilling — thin early decades mean the logs weren't kept, not that nobody drilled.
| Decade | Logs filed | |
|---|---|---|
| 1950s | 1 | |
| 1960s | 303 | |
| 1970s | 12,602 | |
| 1980s | 11,779 | |
| 1990s | 8,773 | |
| 2000s | 7,336 | |
| 2010s | 7,132 | |
| 2020s | 3,685 |
Three ways to find a well log here
- By address — the free lookup maps an address to the wells recorded around it. This is what most people want: "how deep is the well on the place I'm buying."
- By county — each county page carries the drillers, dates and log counts computed from every log filed there, plus the drillers working it.
- By driller — every log names the company that drilled the well, so the 190 North Dakota drillers in our directory each have a profile built from their own filed logs.
Well logs by county
See all 53 North Dakota counties →
Where these records come from
All of it is public record from the drillers logs North Dakota well contractors file with the Department of Water Resources (www.dwr.nd.gov). We don't hold anything the state doesn't publish. More on that database and what a filed record carries: ND DWR well records. What we add is that the records are indexed by location, the statistics are computed the same way in every county, and the whole thing is refreshed weekly. Our filters and the exact computation are on the methodology page (statistics use ND DWR drillers logs, water wells only (test holes, monitoring, dewatering, recovery and cathodic-protection records excluded)).
Common questions
Yes. North Dakota drillers are required to file a completion report for each well, and those reports are kept by the North Dakota Department of Water Resources drillers log file. Anyone can look them up. This site is an independent index of that public record — we re-read the source and recompute every page weekly.
Well logs are filed by location, not by street address, so you search the map rather than a house number. Enter the address on our free lookup and you'll see the recorded wells around that spot — North Dakota records no street address for a well — location comes from the PLSS site description on the driller's log — so results show the wells around a location rather than a single wellhead. Each one shows who drilled it, what it was drilled for and when, and links to the original filed log — the depths and formations are written on that document, not published as data.
The oldest dated log in our copy was completed in 1954; the newest is from 2026. Coverage thins out the further back you go — older wells were often never filed, and filing requirements tightened over time.
Most likely it was never filed. Wells drilled before the state's reporting requirement — and hand-dug or unpermitted wells — have no log at all. It also happens that a log exists but its recorded location is off, in which case it will show up under a neighboring property. Neither is something we can fix from the source data, and we'd rather say so than invent a record.
The useful parts for a buyer or a homeowner: how deep the well is, how high the water stands in it, how many gallons per minute it produced when tested, what the driller hit on the way down, and who drilled it. Together those say whether the well is likely to keep producing and what a replacement would cost. In North Dakota those numbers are on the filed log itself — ND DWR publishes the scanned document per well, but not the depth or yield as data, so we index and locate the logs rather than tabulate figures the state never released.
The property report pulls every recorded well near an address — drillers, purposes, dates , and links to each original filed log — as one printable summary for due diligence.
Property report — $29Driller, agent, or inspector pulling these regularly? Unlimited & white-label plans →