We will now begin the question-and-answer session. The first question comes from John Freeman of Raymond James. Please, go ahead.
John A. Freeman - Raymond James & Associates, Inc.: Hi, guys.
James J. Volker - Chairman, President & Chief Executive Officer: Morning, John.
John A. Freeman - Raymond James & Associates, Inc.: Hi. Last quarter, you talked about that $45 to $50 price range as sort of when you more aggressively addressed the DUCs. Obviously, the participation agreement takes care of the majority of the Bakken DUCs. So, I guess now sort of shifting looking at the Niobrara, what you would need to see to where you'd start to work down those, given the big advance that you've got on the drilling side, you're now looking at 100 DUCs at year end there?
James J. Volker - Chairman, President & Chief Executive Officer: That's correct. So, in general, bringing down that number of DUCs would be one of the first things we would do at higher prices. Yes, $50 is a price where we would move forward on that. I will say like most folks, at least that I'm aware of, most other companies that I'm aware of, we'd like to see that $50 number stay there for a quarter or so before moving ahead on that. I don't think it can hurt us. I think 2017 will have higher prices, as well. And so, I think we'd just like to watch that for at least a 90-day period once – if and when $50 is here.
John A. Freeman - Raymond James & Associates, Inc.: Okay. And then my follow-up question, I know, Mark, last quarter, you talked about you're pretty excited about the potential upside on the refracs, and you all were going to plan on testing a few of those toward the end of the spring. I'm just curious if that's happened yet. And if so, if there's any color you could provide?
Mark R. Williams - Senior Vice President-Exploration & Development: Yes, John. That's been a pretty major focus for us here in the last quarter. And so, we've gone through our entire 1,400 well inventory up in the Bakken and we're sorting through all those. A number of them have, I'd say, very readily risen to the top of being great candidates. So, we're working those up right now, focusing pretty much on, specifically, designing the refrac design to match the specific wells. And so, that's a process that we're in. We expect it by sort of mid-summer we'll actually be able to start implementing operations on this. So, we've identified about 40 candidates so far, and they look like there are going to be good opportunities for us.
John A. Freeman - Raymond James & Associates, Inc.: Great. Thanks, guys. I appreciate it.