A former medical office building near Ellington Airport will become the new headquarters building for an engineering firm that serves the oil and gas pipeline industry. Houston-based NuGen Automation bought the building at 150 FM 1959, the Houston Chronicle reports. Colliers International, which marketed the building, announced the sale last week. Colliers' Beth Young and Marshall Clinkscales represented the seller, WHGS Holdings Co. LLC, which does business as Coastal Surgical Group. Cameron...