Yes, I can talk about that.
Maya, of course, is produced by Mexico. It's heavy crude, mainly from offshore fields. It has an American Petroleum Institute gravity of about 23 degrees and a sulphur content of about 4%. Western Canada Select, or WCS, is a blend of bitumen, synthetic crude oil, and diluent, which has an API gravity of about 22 degrees and a similar sulphur content to Maya. They're very similar crudes. Maya is a slighter higher-quality crude because it's not quite as heavy, so normally it sells for about $6 a barrel more than Western Canada Select, but currently it's much greater than that.