BP says it began pumping gas into the Baku-Tbilisi-Erzurum pipeline earlier Thursday. It had stopped pumping gas into the pipeline on Tuesday because of security fears.
BP's Baku-Supsa oil pipeline - also shut down on Tuesday - remains closed as the company continues to assess the security situation.
The larger Baku-Tbilisi-Ceyhan line remains out of action after a fire earlier this month on the Turkish section of the line. BP says that engineers are still trying to review the damage and no time has been set for the reopening of that line.