I'm not quite sure how to answer that other than to say that producing oil today is what funds the research that's going into these improved innovations.
To get back to Dr. Gray's point that there is some time required with respect to the development of these technologies to bring them on board, certainly the observation I've had, working in this field for a little bit, is that these goals are not mutually exclusive. In other words, generally we find that if we can do things more efficiently, it is economical and reduces the footprint on the environment. So continued incremental change, followed up by some of these technology game-changers, is the way forward.