The scope of Islamic State’s attacks on Libya’s eastern oil ports expanded on Wednesday, Libyan officials said, with at least five oil tanks set on fire amid fears the group could inflict long-term damage on the North African nation’s energy industry. The attacks stoked fears the radical Islamist group plans to undermine the financial viability of a peace agreement between two rival militia groups vying for control of Libya by destroying the country’s main source of revenue. In December, representatives of Libya’s two rival powers signed a United Nations-brokered power-sharing pact that called for the formation of a national unity government by mid-January. “I urge the swift formation of a national unity government and the establishment of a unified force structure capable of bringing peace to this country and protecting its natural resources,” said Mustafa Sanallah, chairman of National Oil Co., in a statement posted on the company’s website […]