	colombia s main oil pipeline attacked state run oil company ecopetrol said colombia s main oil pipeline was bombed again and pumping of barrels per day was suspended a spokeswoman for the company said that the early morning dynamite attack was the st in the last nine months on the cano limon covenas pipeline which links colombia s biggest oilfied at cravo norte to the caribbean she said about barrels of  were spilled and could not indicate when pumping would resume the attack was near magangue in northeastern bolivar province ecopetrol is exploiting cravo norte in association with occidental petroleum corp oxy and shell petroleum n v a unit of the royal dutch shell group rd st ecopetrol said in a communique that bombings since last july led to a loss of more than barrels of  or the equivalent of mln dlrs reuter 
