"A blast inside Turkey halted oil exports through one of the Kirkuk-Ceyhan pipelines early on Sunday. We managed to switch the crude flow to another line at 1400 GMT Sunday," Asim Jihad told Reuters.

Before the blast, the Kirkuk-Ceyhan pipeline exports were were at normal levels of around 400,000 barrels per day. Jihad said they were waiting a full report from Turkey on how long it will take to repair the damage.