South Sudan’s oil production has dropped 55% since the onset of an internal conflict that has just entered its fifth year. Based on crude marketing data for the month of December, crude output in November was close to 118,000 b/d, compared to about 260,000 b/d in November 2013.South Sudan was plunged into crisis in December 2013 when President Salva Kiir, concerned about internal opposition to his leadership, allowed a political dispute to escalate into civil war.