Proposed legislation on carbon capture and sequestration potentially could cost US refiners $100 billion/year, threatening the sustainability of the domestic refining industry and giving undue favor to non-US refiners, said analysts at Wood Mackenzie Ltd., Edinburgh, in a recent study."The draft US legislation is much more onerous on the US refining sector than its European counterparts," said Alan Gelder, head of downstream oil consulting for WoodMac. "US refiners will not only be required to purchase emission credits for both the stationary emissions (from the refinery) but also the emissions from the subsequent combustion of the fuels."Moreover, he said, "The f...