The Guardian (UK) : Kurds & Tribes Only Rival to Jihadist Power

19.5.2013 – Report claims:  Jabhat al-Nusra, affiliated with al-Qaida and other extreme Islamist groups, control the majority of the oil wells in Deir Ezzor province, displacing local Sunni tribes, sometimes by force. They have also seized control of other fields from Kurdish groups further to the north-east, in al-Hasakah governorate.

    Abu Albara, an al-Nusra fighter who spoke to the Guardian by telephone from Deir Ezzor, said: “Now, we can say that most of the oil wells are in the hands of the rebels, only a single oil facility in Hasakah is still under the control of [Kurdish fighters].The only rivals to the power of the jihadists in the oil region are the Kurds in al-Hasakah, and the Sunni tribes around Deir Ezzor, who have found themselves increasingly marginalised by Islamic extremists.

http://www.guardian.co.uk/world/2013/may/19/eu-syria-oil-jihadist-al-qaida