Commercial Team

Rhett Stall | Vice President - Commercial

Mr. Stall works with Carlos Evans and Blake Burger in overseeing the business development and commercial gas supply efforts for Tall Oak. He holds a Bachelor of Science degree in economics with finance applications from Southern Methodist University in Dallas.  He and his wife Hope have two children and live in Edmond, Oklahoma.

Blake Burger | Vice President - Commercial

Mr. Burger works with Carlos Evans and Rhett Stall in overseeing the business development and commercial gas supply efforts for Tall Oak. Mr. Burger holds a Bachelor of Science degree in finance from Oklahoma State University in Stillwater, Oklahoma.  He and his wife Emily have one son and live in Tulsa, Oklahoma.

Leigh Ann Cales | Manager of Marketing Administration and Scheduling

Ms. Cales manages the company’s contracts, trades residue gas, and schedules production across Tall Oak’s assets to maximize value and flow assurance to our customers.  She brings more than 15 years of experience in Energy Marketing to the team, primarily from Linn Energy and Devon Energy.  Prior to joining Tall Oak Midstream in 2019, Ms. Cales held Senior Commercial and Business Development positions at Linn Energy, managing the natural gas and crude oil production across multiple US Basins and supported the company’s first midstream greenfield creation and startup of a 250 M/d cryogenic plant with 100+ miles of gathering to support production from the Merge/SCOOP/STACK plays in Oklahoma.  Ms. Cales holds a Bachelor of Science in General Business & Marketing from Oklahoma State University and serves on the Board of Directors for the Natural Gas & Energy Association of Oklahoma.