The 780-kilometre Cano Limon pipeline - Colombia's second largest - transfers oil from Occidental Petroleum-oilfields near the Venezuelan border to the Caribbean port of Covenas.
The pipeline was hit late on Monday in Boyaca department's Cubara municipality, according to local reports.
The National Liberation Army (ELN) rebel group is said to have been responsible for the bombing, which halted oil flows, NTN24 TV reported.
Ecopetrol,
