Mark Gilman - The Benchmark Company, LLC, Research Division
Okay. My follow-up, Dave, relates primarily to the Bone Springs in the Permian, an area where, in the recent past, results have been pretty good. I wonder if you could update us. I didn't hear you specifically mention Bone Springs activity in your review of the quarter.
David A. Hager
Well, we've had a number of good Bone Springs wells in the quarter. I think we highlighted, actually, in the earnings release that we had a number of good Bone Springs wells on the order of around 600 barrels a day or so that we achieved out there. I think we had 8 wells average more than 600 barrels per day, 8 operated wells in the fourth quarter that achieved more than 600 barrels a day so we're seeing very good results out there. We see a good inventory of opportunities sitting out there. We estimate we probably have 350 to 400 locations remaining in the Bone Springs just on our existing inventory and will probably drill somewhere around 80 this year. So again, you can see 4- to 5-year inventory of Bone Springs opportunities.