The fall of the al-Jazal oil field in the Homs province came after intense fighting with government troops, Xinhua quoted the Syrian Observatory for Human Rights as saying. ... The government had already lost the oil and gas fields in Deir al-Zour. Kurdish militants in northern Syria also control the country's largest Rmailan oil field. Clashes are still raging near the field, the Observatory said. The oil industry had been a pillar of the Syrian economy until the crisis broke out more than three years ago, with a daily output of about 380,000 barrels. ...