Licensed by the Texas Department of Licensing and Regulation (TDLR) as a water well driller (drilling endorsements: water wells, monitoring wells, closed-loop geothermal wells). License 54752 held by Nathan O Yoakley, expires 2026-11-08. Filed 72 well reports with the Texas Water Development Board since 2016 (46 for household wells), most recently in May 2024, mostly in Harris, Val Verde and Austin counties.