An Austrian Armed Forces soldier wearing a face mask patrols in front of the Opec headquarters in Vienna. The group reached a historic pact with the G20 to cut production. EPA
An Austrian Armed Forces soldier wearing a face mask patrols in front of the Opec headquarters in Vienna. The group reached a historic pact with the G20 to cut production. EPA

Oil prices likely to average $40 per barrel in 2020, says IIF