Oil is not an ideology, and their ideology is *slam, a violent death cult.
If you pick apart the islamic fanaticism in the ME and now Europe, much of it actually stems from control of black market weapons, drugs, prostitution, and any other convenient source of revenue... like oil. The history of islam is a history of criminality. Muslims actually invented centuries ago the business model that Mexican drug cartels use today but without the veneer of ‘religion’.