Russian President Vladimir Putin, left, speaks to Iran's President Hassan Rouhani as they attend a signing ceremony during the Gas Exporting Countries Forum (GECF) in Tehran, Iran, Monday, Nov. 23, 2015. The meeting of the Gas Exporting Countries Forum (GECF) bring major producers such as Russia, Qatar and Algeria to Iran, which itself is the world's third largest producer after the U.S. and Russia. (AP Photo/Alexander Zemlianichenko)
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