Yes, Brian. Three different drivers on the Q1 volumes. We've always said on these resource plays, you can't just take a straight line quarter to quarter to quarter to quarter and assume that our production growth is going to be that way. The biggest single component of the lumpiness in our production growth is what we call pattern drilling and frac-ing. If you notice in those Henkhaus wells, for example, in Eagle Ford that we mentioned to you on the press release there, typically, what we do there is we drill 4 or 5 of those wells. We don't frac any of them individually, and then we wait till we get all the wells drilled, then we line them up and frac them 1, 2, 3, 4, 5, without producing any of them. And then when they're all frac-ed, we turn them all on at one time. So you get a big burst of production, but it's just a function of how many wells have you drilled in the pattern, what's your frac schedule and everything. And in the first quarter, we've got really, I'd say, an abnormal amount of wells that we're going to be patterned, drilling and frac-ing. So that's affecting it. We've also got some downtime in some gas processing plants that we're anticipating that's going to hurt some of our NGL production and oil production from some of our combo areas. And then, the last thing is a little bit of property dispositions that, as we mentioned, because the gas market is so weak, the majority of our $1.2 billion worth of property dispositions this year are going to have some liquid component with them. And so we're trying to get those scheduled timing. So you can't expect that the first quarter and potentially, the second quarter are not going to have strong year-over-year or quarter-over-quarter growth numbers -- excuse me, the year-over-year is going to be very strong in the first quarter. I believe it's a number like 40%, 40-plus percent. But we just caution you, don't just take a straight line on our quarter-to-quarter growth in 2011 and just extrapolate that in 2012.