The attack occurred late on Tuesday in Saravena, in Arauca province, near the border with Venezuela, said a source from Ecopetrol, which operates the pipeline.
Military sources blamed the attack on the National Liberation Army, or ELN, rebels, who regularly attack oil installations despite announced peace talks with the government.
The 485-mile (780 km) pipeline has the capacity to transport up to 210,000 barrels of crude daily from oil fields operated by U.S.-based
