From Al Jazeera. Any opinions expressed are those of the authors, and do not necessarily reflect the views of Libya Business News.
Fighting has escalated in Libya's so-called "oil crescent".
Forces loyal to renegade General Khalifa Haftar have struck a rival armed group after their attack on oil terminals on Thursday.
The area has been under the control of Haftar's Libyan National Army since 2016.
Al Jazeera's Mahmoud Abdel-Wahed reports from Tripoli: