The Guardian:

Islamic State fighters have seized the last major oilfield under Syrian government control during battles over a vast central desert zone, a group monitoring the conflict has said.
The Jazal field has been shut down as fighting continued east of Homs, with casualties reported on both sides, the Britain-based Syrian Observatory for Human Rights said on Monday, without giving dates or further details.
Syria’s army said it had fought back an attack in the same area but did not mention Jazal or comment on how much of the country’s battered energy infrastructure remained under its influence. It said it killed 25 fighters, including foreign jihadis.
“The regime has lost the last oilfield in Syria,” said the observatory, which tracks violence through a network of sources on the ground.