Allied fighter jets and bombers carried out 14 air raids near the eastern city of Dayr-az-Zawr since yesterday morning, including six strikes on five crude oil collection points, a pipeline, armored vehicles and a shipping container, the US military said in a statement.
The international coalition fighting the IS has sought to disrupt the group's crude oil supplies, repeatedly targeting refineries, oil tanker trucks and various makeshift depots in Syria.
The US-led coalition yesterday also conducted eight bombing runs near the northern town of Kobane, targeting Islamic State (IS) troops that have waged a months-long battle to seize the area near the Turkish border.
IS began its offensive on Kobane in mid-September and came close to overrunning the town. But Kurdish fighters, backed by a steady campaign of air strikes, have been gradually recaptured territory in the small town.
In Iraq, American and allied fighter jets carried out six air strikes yesterday against the IS group in the north and west, including two raids near the al-Asad air base where US military advisers are deployed.
As of mid-December, the American-led coalition against IS had carried out more than 1,300 air raids. Washington launched the air war in Iraq on August 8 and extended it to Syria on September 23.