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(FILES)-- A file photo taken on April 23, 2012 shows a view of an oil field in Bentiu, South Sudan. South Sudan restarted oil production on April 6, 2013, ending a 15-month bitter row with former civil war foe Sudan and marking a major breakthrough in relations after bloody border clashes last year. "The oil is now flowing, " South Sudan oil minister Stephen Dhieu Dau shouted as he flicked a switch to restart production at a ceremony in the Thar Jath field in Unity state. AFP PHOTO / HANNAH MCNEISHHANNAH MCNEISH/AFP/Getty Images
(FILES)-- A file photo taken on April 23, 2012 shows a view of an oil field in Bentiu, South Sudan. South Sudan restarted oil production on April 6, 2013, ending a 15-month bitter row with former civil war foe Sudan and marking a major breakthrough in relations after bloody border clashes last year. "The oil is now flowing, " South Sudan oil minister Stephen Dhieu Dau shouted as he flicked a switch to restart production at a ceremony in the Thar Jath field in Unity state. AFP PHOTO / HANNAH MCNEISHHANNAH MCNEISH/AFP/Getty Images

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    South Sudan violence halts oil production

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South Sudan violence halts oil production

Oil production is down in South Sudan as violence rages. CNN's Richard Quest and Fred Pleitgen explain why.

South Sudan violence halts oil production

Oil production is down in South Sudan as violence rages. CNN's Richard Quest and Fred Pleitgen explain why.