Yes, but I hesitate to provide numbers on a per-barrel basis, because it's highly dependent on how much of the carbon dioxide you choose to capture. If you choose to make a reduction of 10% in your carbon dioxide emissions, does that mean you only divide it over 10% of your barrels, or do you divide it over all of your barrels?
Also, a fair number of the companies that are involved in our initiative aren't even oil producers. They are in the chemical sector, the industrial sector, or the power generation sector, where the numbers aren't as meaningful on a per-barrel basis. Certainly there have been studies done by external consultants, which have shown a wide range of impacts on a per-barrel basis.