Increasing the diameter of Veresk-Sari pipeline in the northern Mazandaran Province will help double oil products transfer capacity, an official from Iran’s Oil Pipeline and Telecommunication Company said, Shana reported. Abolghasem Mousavi said that IOPTC has approved a plan for replacing part of the current 12-inch pipeline with a 16-inch pipeline to raise transfer capacity through the 110 km pipeline to 120,000 barrels per day.