FILE PHOTO: An employee walks on top of pipelines at Hungarian oil and gas group MOL’s main Duna (Danube) refinery in Szazhalombatta October 14, 2013. Picture taken October 14, 2013. REUTERS/Laszlo Balogh/File Photo
FILE PHOTO: An employee walks on top of pipelines at Hungarian oil and gas group MOL’s main Duna (Danube) refinery in Szazhalombatta October 14, 2013. Picture taken October 14, 2013. REUTERS/Laszlo Balogh/File Photo