http://www.oilandgas360.com/analytics/N ... pdf?a940b1
Link above is to Newfield's most recent presentation. Take a look at slide #6 to see core area of the STACK play.
NFX, CLR, DVN, XEC and GST all have significant leasehold positions in STACK.
Newfield Exploration (NFX)
Newfield Exploration (NFX)
Dan Steffens
Energy Prospectus Group
Energy Prospectus Group