# Water wells in Frio County, Texas — how deep, and through what

> 1,290 well reports filed in Frio County since 2001. Median depth 360 ft, water struck at 193 ft, median yield 25 gpm.

## Water wells in Frio County, Texas

**1,290** well reports on file. The median well here was taken to **360 ft** and struck water at **193 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Frio County

*Logged in Frio County, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **Surface** 267 , **Yellow Clay** 140 , **Top Soil** 138 , **Clay** 122 , **Gravel** 89 , **Sand** 74 |
| 25–50 ft | **Blue Shale** 42 , **Sand** 34 , **Shale** 28 , **Gravel** 21 , **Clay** 17 , **Yellow Sand** 17 |
| 50–100 ft | **Shale** 107 , **Sand** 78 , **Blue Shale** 71 , **Rock** 37 , **Sandy Blue Shale** 30 , **Sandy Shale** 31 |
| 100–200 ft | **Sand** 193 , **Shale** 134 , **Rock** 49 , **Sandy Shale** 65 , **Blue Shale** 51 , **Gray Sand** 35 |
| 200–300 ft | **Sand** 214 , **Shale** 118 , **Rock** 45 , **Blue Shale** 54 , **Sandy Shale** 56 , **Gray Sand** 45 |
| 300–500 ft | **Shale** 172 , **Sand** 159 , **Sandy Shale** 53 , **Rock** 32 , **Blue Shale** 38 , **Clay** 30 |
| 500–1000 ft | **Shale** 118 , **Sand** 94 , **Sandy Shale** 61 , **Sand, Shale Layers** 15 , **Carrizo Sand** 12 , **Rock** 12 |
| 1000–5000 ft | **Shale** 68 , **Sand** 51 , **Carrizo Sand** 59 , **Sandy Shale** 35 , **Carrizo** 14 , **Sand (Carrizo)** 14 |

The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.

### Who drills in Frio County

*Licensed firms in Frio County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 249 | 15 | — | 2006–2023 |
| [McKinley Drilling](/driller/mckinley-drilling.md) | 178 | 1,307 | 1,000 | 1990–2026 |
| [SHEPHERD DRILLING](/driller/shepherd-drilling.md) | 158 | 280 | 20 | 2003–2026 |
| [Cruz Drilling](/driller/cruz-drilling.md) | 102 | 260 | 25 | 2003–2018 |
| [Underground Water Resources, LLC](/driller/underground-water-resources-llc.md) | 95 | 420 | 12 | 2019–2026 |
| [Dennis Drilling Company](/driller/dennis-drilling-company.md) | 53 | 371 | 1,000 | 2003–2022 |
| [Bull's Eye Services, LLC](/driller/bull-s-eye-services-llc.md) | 29 | 400 | 22 | 2011–2025 |
| [Thomas Moy and Sons Water Well Drilling Inc.](/driller/thomas-moy-and-sons-water-well-drilling-inc.md) | 28 | 460 | 45 | 2011–2026 |
| [Cherokee Drilling](/driller/cherokee-drilling.md) | 28 | 310 | 10 | 2004–2024 |
| [Thomas Moy and Sons](/driller/thomas-moy-and-sons.md) | 27 | 520 | 60 | 2008–2022 |
| [Cascade Drilling](/driller/cascade-drilling.md) | 25 | 25 | — | 2011–2026 |
| [Well Done Water Works, LLC](/driller/well-done-water-works-llc.md) | 21 | 420 | 15 | 2022–2026 |
| [Unison Drilling Inc](/driller/unison-drilling-inc.md) | 20 | 455 | 40 | 2011–2019 |
| [Artesia Drilling](/driller/artesia-drilling.md) | 17 | 400 | 15 | 2013–2021 |
| [Cascade Technical Services](/driller/cascade-technical-services.md) | 16 | 10 | — | 2020 |
| [Moy's Water Well Drilling & Services of Texas](/driller/moy-s-water-well-drilling-services-of-texas.md) | 14 | 500 | 40 | 2018–2024 |
| [Water Well Services, Inc.](/driller/water-well-services-inc.md) | 13 | 1,876 | 800 | 2011–2018 |
| [B&K Water Well Drilling](/driller/b-k-water-well-drilling.md) | 12 | 400 | 25 | 2013–2022 |
| [James Pawlik Water Well Service, Inc.](/driller/james-pawlik-water-well-service-inc.md) | 11 | 700 | 60 | 2013–2025 |
| [Talon/LPE](/driller/talon-lpe.md) | 11 | 100 | — | 2017–2018 |
| [Mathers Environmental Drilling Inc.](/driller/mathers-environmental-drilling-inc.md) | 9 | 10 | — | 2020 |
| [Pipe Creek Water Well, Inc.](/driller/pipe-creek-water-well-inc.md) | 9 | 300 | 15 | 2007–2012 |
| [Thomas Moy & Sons](/driller/thomas-moy-sons.md) | 9 | 440 | 45 | 2005–2008 |
| Thomas Moy & Sons Water Well Drilling | 8 | 575 | 150 | 2003–2008 |
| [BULLS EYE SERVICES LLC](/driller/bulls-eye-services-llc.md) | 7 | 900 | 28 | 2011–2022 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Domestic | 511 | 39.6% | 380 |
| Environmental Soil Boring | 196 | 15.2% | 10 |
| Irrigation | 191 | 14.8% | 1,145 |
| Stock | 174 | 13.5% | 320 |
| Monitor | 125 | 9.7% | 25 |
| Rig Supply | 34 | 2.6% | 1,900 |
| Industrial | 22 | 1.7% | 500 |
| Fracking Supply | 17 | 1.3% | 1,850 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 1990s | 1 | 1,392 | 319 |
| 2000s | 265 | 300 | 120 |
| 2010s | 616 | 315 | 190 |
| 2020s | 408 | 420 | 230 |

### The deepest reports on file

*Deepest reports in Frio County. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 667183 | 2024 | 4,500 | — | — | Irrigation |
| 667170 | 2024 | 4,100 | — | — | Irrigation |
| 210454 | 2005 | 4,100 | — | 1,000 | Irrigation |
| 482713 | 2015 | 3,899 | — | — | Irrigation |
| 37984 | 2003 | 3,788 | — | — | Irrigation |
| 38008 | 2003 | 3,780 | — | — | Irrigation |
| 525697 | 2019 | 3,008 | 400 | — | Fracking Supply |
| 497149 | 2018 | 2,909 | 234 | — | Rig Supply |
| 367114 | 2014 | 2,849 | 179 | — | Rig Supply |
| 358501 | 2014 | 2,840 | 475 | 525 | Rig Supply |

Every figure on this site is a **median**, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.

### Drilling a well in Frio County?

Depth is only half the quote. What it costs depends on the rock, the casing and the pump. Tell us where and we pass the request to licensed Texas drillers.

We are nobody's agent and have no arrangement with any firm today. [What we do with this](/privacy.md).

### Counties with a comparable number of reports

- [Val Verde](/county/val-verde.md)
- [Ward](/county/ward.md)
- [Ellis](/county/ellis.md)
- [Madison](/county/madison.md)
- [Upshur](/county/upshur.md)
- [Parmer](/county/parmer.md)
- [Gray](/county/gray.md)
- [Bailey](/county/bailey.md)
- [Milam](/county/milam.md)
- [Refugio](/county/refugio.md)
- [Irion](/county/irion.md)
- [Kaufman](/county/kaufman.md)
- [Collingsworth](/county/collingsworth.md)

A sliding window, not a ranking. [Every county](/county.md).

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Página: https://texas-water-wells.pages.dev/county/frio/
Fonte: Texas Submitted Driller's Report Database — Texas Water Development Board, from reports filed with the Texas Department of Licensing and Regulation
Recolha: 2026-08-23