mr. burkhard or mr. duwun, if either of you would like to add anything to what's been said. >> fuel economy standards, we already mentioned, those play a tremendous role in oil consumption in the future. and we're seeing higher fuel economy standards, not just in the u.s. but also europe and china, other markets. one more challenging aspect to the efficiency efforts are buildings and structures. cars on the road for maybe 12 years, a building can be around for 100 years. and encouraging, providing incentives for greater building efficiency could go a long ways. >> yes. mr. diwan. let me ask a very quick final question for dr. gruenspecht since you mentioned heating oil in the northeast. i personally am very concerned about pad one, as you pointed out. you talked about the refineries that are down on the east coast. can you talk about the correlation between that, if there is any, and what we're seeing in increased costs for home heating oil in the northeast. >> thank you. i don't think there's really much corr