A handout picture released by the official website of the Iranian President Hassan Rouhani shows him (R) walking with Oil Minister Bijan Namdar Zanaganeh (L) at phase 12 of the South Pars gas field facilities in the southern Iranian port of Assaluyeh, on the shore of the Gulf, on March 17, 2015. AFP PHOTO/ HO / IRAN'S PRESIDENCY OFFICE WEBSITE