(Office of the Iranian Presidency via AP) President Hassan Rouhani speaks in a public gathering at the city of Yazd, some 410 miles southeast of the capital Tehran, Iran, Sunday, Nov. 10, 2019. Iran has discovered a new oil field in the country's south with over 50 billion barrels of crude oil, Rouhani said Sunday, a find that could boost the country's proven reserves by a third as it struggles to sell energy abroad over U.S. sanctions.