Ronnie, EOG completed 2 wells in 157- 89 section 29 a year ago, both wells are in the 100k barrels range for the first year, good production. The operators are sticking to the west side of the townships you asked about. The other two townships have had no recent activity.
Eventually someone will find out exactly where the edge is, but they don't have to do it right now and everyone would like for someone else to pay for finding the edge. Still too much profitable undrilled "safe" land farther west to drill. EOG won big time with those two wells and I would not be surprised if they leased a little more afterwards.