"Market forces at work. All the Middle East has to sell is oil. If they want to keep selling it, they're going to have to help address the emissions problems."

Couldn't it simply be that they want to pump CO2 into their wells to increase the productive capability of their reserves?

"Carbon dioxide (CO2) flooding is a process whereby liquid carbon dioxide is deposited deep into the earth in order to increase output when extracting oil.

When a reservoir’s pressure is depleted through primary and secondary production, Carbon Dioxide flooding can be an ideal tertiary recovery method. It is particularly effective in reservoirs deeper than 2,000 ft., with API oil gravity greater than 22–25º and remaining oil saturations greater than 20%. It should also be noted that Carbon dioxide flooding is not effected by the lithology of the reservoir area but simply by the reservoir characteristics. Carbon dioxide flooding works on the premise that by injecting CO2 into the reservoir, the viscosity of any hydrocarbon will be reduced and hence will be easier to sweep to the production well."
http://en.wikipedia.org/wiki/Carbon_dioxide_flooding

Wouldn't they simply be stupid not to do this- at least at some point. And isn't it political smart to portray this as having interest in doing something which can be seen as "Green"