Libya's Sharara oil field, the country's largest, has been shut down by protesters from the southern Ubari region amid anger over high fuel prices and a lack of economic opportunity, sources said Jan. 3. Register NowProtests at the field, which were entering their third day, initially prompted workers at Sharara to shut some wells before the 300,000 b/d field was taken completely offline. Fuel prices in southern Libya have skyrocketed in recent months, sources said. The onshore Sharara field -- once thought to contain Africa's largest proven oil reserves -- has been a frequent target for protesters and armed groups since the fall of Muammar Gaddafi in 2011. A security source told S&P Global the Sharara shut down was caused by "local grievances" rather than any LNA involvement, adding: "Protesters do not represent a major threat."