Wyoming Well Data · Well logs
Wyoming well logs
Every time a well is drilled in Wyoming, the driller files a completion report — the well log — with the Wyoming State Engineer's Office e-Permit well permit database (WSGS bulk extract + e-Permit top-ups). We hold 161,037 of them and rebuild this index weekly, so you can find one by address instead of by record number.
✓ State Engineer records through 2023-09-01 · checked 2026-07-28
Heads up: we re-read State Engineer weekly and hold every record it publishes, but the newest filed log in the source itself is from 2023. A well drilled since then very likely has no log here yet — that's the state's publishing cadence, not a gap in our copy. Everything below describes the 161,037 records that do exist.
Well logs are filed by location, not by house number. Enter any Wyoming address and we'll pull the recorded wells around it — wells are plotted at the coordinates recorded in the State Engineer’s Office e-Permit database — quarter-quarter-section locations on older permits (roughly ±0.5 mi), closer on recent ones.
Free address lookup Full property report — $19What's in a Wyoming 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 161,037 records, so you know what to expect before you look anything up.
| Field | What it tells you | Records with it | Coverage |
|---|---|---|---|
| Mapped location | Coordinates, so the log can be found by address instead of by record number. | 161,037 (100%) | |
| Date completed | When the well was finished and the log filed. | 161,030 (100%) | |
| Tested yield | Gallons per minute the well produced on the driller’s pump test. | 152,460 (95%) | |
| Total depth | How deep the hole was drilled, in feet. | 113,547 (71%) | |
| Static water level | How far below the surface the water stood at rest. | 103,822 (64%) |
When Wyoming's wells were drilled
Dated logs by decade of completion (161,030 of 161,037 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 | |
|---|---|---|
| 1860s | 2 | |
| 1870s | 12 | |
| 1880s | 76 | |
| 1890s | 148 | |
| 1900s | 647 | |
| 1910s | 1,760 | |
| 1920s | 1,613 | |
| 1930s | 1,772 | |
| 1940s | 3,202 | |
| 1950s | 4,869 | |
| 1960s | 7,248 | |
| 1970s | 31,506 | |
| 1980s | 21,580 | |
| 1990s | 25,315 | |
| 2000s | 37,208 | |
| 2010s | 17,118 | |
| 2020s | 6,954 |
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 median depth, water level and yield computed from every log filed there, plus the drillers working it.
Well logs by county
Where these records come from
All of it is public record from the Wyoming State Engineer's Office e-Permit database — the state's official record of groundwater well permits (seoweb.wyo.gov/e-Permit). We don't hold anything the state doesn't publish. More on that database and what a filed record carries: State Engineer 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 water well permits only — coalbed-methane, monitoring and test wells excluded; depths 0–5,000 ft).
Common questions
Yes. Wyoming drillers are required to file a completion report for each well, and those reports are kept by the Wyoming State Engineer's Office e-Permit well permit database (WSGS bulk extract + e-Permit top-ups). 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 — wells are plotted at the coordinates recorded in the State Engineer’s Office e-Permit database — quarter-quarter-section locations on older permits (roughly ±0.5 mi), closer on recent ones. Each one shows its depth, static water level, tested yield.
The oldest dated log in our copy was completed in 1867; the newest is from 2023. 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.
The property report pulls every recorded well near an address — depths, water levels, yields, drillers — as one printable summary for due diligence.
Property report — $19Driller, agent, or inspector pulling these regularly? Unlimited & white-label plans →