We entered the basin in December 2010. All of our operations are located on the Fort Berthold Indian Reservation. Today we have approximately 85,000 net acres under lease.
As of year-end 2015, we have proved reserves of 93 million barrels of oil equivalent in the Williston Basin. WPX completed 34 gross (21 net) oil wells in 2015. This compares with 53 gross (45 net) for full-year 2014.
Williston oil volumes increased 12 percent in 2015 to an average of 21,800 barrels per day. The production stream is approximately 85 percent oil.