Real estate transactions: Energy law firm upgrades offices in downtown tower News Katherine Feser December 16, 2021 . Brian Gammill and Darryl Noon of Transwestern represented the landlord. Joseph Smith of CBRE represented the tenant. Naturesort , a Learn More Brian Gammill Executive Managing Director Houston, Texas (713) 270-3321 Darryl Noon Managing Director Houston, Texas (713) 270-3325