Maybe quickly on the gas, definitely there are rumours—I have no proof—that Gazprom was financing all these environmentalists to cause some problems. I noticed that in eastern Ukraine when Shell was signing the deal with the Ukrainian government, there were very few complaints about the environment, because that was a very tightly controlled area of Yanukovych and his group. They basically just told them to sign and not to ask any questions.
In western Ukraine, on the other side, where Chevron was signing the agreement, it was delayed a couple of times by a month or two or three, and there were quite a few environmental groups that were sort of fighting the signing. Obviously, Yanukovych did not have enough power and pull in western Ukraine to just tell them to sign it.
There has been that rumour. I can't confirm whether it was Gazprom that financed it or not.
On gas, definitely there are numbers you can put on these reserves. All these companies that are signing these deals are big companies. They know what they're getting into. Each of these deals is in the range of $10 billion, so these are huge deals. If Chevron signs a deal for $10 billion, it obviously has done enough studies, because it is committing on paper to putting that amount into developing the field, which is eventually going to be split, country-company, in this production-sharing agreement. That's what they like.
One thing Yanukovych and his group did was to pass legislation on production-sharing agreements, which is a very big thing, because in Ukraine before there were funny structures but no production-sharing agreements. He has done it, maybe thinking he would be a partner in all of this, so he wanted to be protected more than anybody else, but he has done a very good job on that.