we have selected the top people to lead our team. Learn more about each member here.
Don has a Geological Engineering degree from the South Dakota School of Mines and has more than 30 years in oilfield product sales experience and is published numerous technical papers.
Mark McGill,
Executive Vice President
Mark is a proven sales and marketing leader with extensive knowledge of Technical Sales into the Oil and Gas industry. Mark has extensive product knowledge including Resin Coated Ceramic, Mono Sized high temperature, High Pressure ceramic and chemically infused ceramic proppants to treat well problems insitu.
Brandon White is PropTester’s Laboratory Manager, responsible for day-to-day lab operations, QA/QC, and reliable reporting across proppant and fluids testing. Based in Cypress, Texas, he partners with clients to scope analyses, ensure ISO/API-aligned methods, and deliver clear, decision-ready results that keep projects moving.
