Price of a barrel of oil has fallen 50% in the space of two to three months based on the policy decisions of OPEC. Has demand suddenly collapsed? I don't think so, anything you can bring onto the market, China will gobble up.
Of course, the price at the pump comprises a lot of taxes too, but it seems evident that ordinary folk are getting ripped off and that the price of oil is not only lining the pockets of the Saudis but also a geopolitical tool.
Russian folks are full of patriotic ideas right now what I hear from family & friends. But obviously what people in the West don't hear that Ukraine is even in a bigger hole than Russia. Western countries should help out now.
[1] http://en.wikipedia.org/wiki/1980s_oil_glut [2] http://en.wikipedia.org/wiki/Able_Archer_83