Jeffrey L. Campbell - Tuohy Brothers Investment Research, Inc.
Analyst · Jeffrey Campbell of Tuohy Brothers. Your line is open
Good morning. My first question was I noticed that you mentioned stacked pay potential in the Permian. I was just wondering have you started any kind of stacked pilots yet? Or are you concentrating primarily on a zone or two at this time? And if not, when do you think you might start to undertake some sort of stacked experiments in the Permian?
Douglas James Suttles - President, Chief Executive Officer & Director: Jeff, Mike will fill you in on the details, but the Permian we're trying to do three things simultaneously, and I'm encouraged by the early results. One is we've already gone to our Resource Play Hub multi-well development model, which is driving lot of efficiency in upfront. I mean, you guys may appreciate it, but doing simultaneous drilling and completion operations is not common. We've done it elsewhere successfully. It reduces cycle time, it cuts cost. I mean, Mike also mentioned, in the Duvernay two frac spreads on one pad. We're told by the service company that pumped it, that's the first time it's ever been done in the world. And it generates substantial cost savings and cycle time benefits as well. But the three things we're trying to do in the Permian is move forward on some of the zones with RPH development. The second thing we're trying is actually aggressively pursuing what do we think optimum development model is, and that's both inter-well spacing and completion intensity because as Mike mentioned we're looking at 3,000 pounds per foot and 4,000 pounds per foot on our frac designs. And the third thing is we continue to appraise other horizons. We already are looking at chevroning, which is in my thinking it's vertical downspacing. But we've got all three these going on simultaneously right now.
Michael G. McAllister - Chief Operating Officer & Executive Vice President: Hi, Jeff; it's Mike here. Yeah, we've been testing greater inter-cluster spacing or, should I say, reduced inter-cluster spacing and increased sand concentrations and seeing very encouraging results with respect to that in the Permian. We've been testing the Wolfcamp A, Wolfcamp B and now are drilling the well into the Wolfcamp C, so basically looking at testing all of the zones as well as the Spraberry here. But as Doug mentioned within the zone, say, the Wolfcamp B, we're looking at not only just staying on the horizontal, but also moving, stacking vertically up basically 330-foot well spacing, but going from 200 foot to 300 foot vertically within the zones to test that production performance. So moving along, we expect to be doing those tests this year, basically speeding up our learning curve, if you will, for optimal development.