TEHRAN, April 13 (MNA) A pipeline break in oil-rich Gachsaran region in southwestern Iran has spilled thousands of barrels of crude oil into the environment. Gachsaran hosts5500 Km. of oil pipelines the major part of it had eroded awayin the course of years of operation; yesterday, a 26-inch caliber pipeline broke in the Dej Suleiman region of Gachsaran ...