TWMA appointed Tom Trigg as global technical adviser. Based at the company’s Houston office, Trigg will help advance improvements in oil and gas drilling waste treatment and footprint reduction. He has 42 years of experience in the upstream oil and gas drilling industry and an extensive background in the improvement of operational performance of drilling fluid and reduction of drilling waste footprint. Trigg retired from ExxonMobil, where he served as drilling’s global environmental coordinator. During his career, Trigg held technical and operational management positions.