Dhara,
I've taken a look at the areas around Sec 21, Blk B-5 PSL and Sec 7, Blk B-10 and nobody seems to be very excited about the areas.
There is a company named Boyd & McWilliams out of Midland that has some leases and is drilling some wells just to the North of Sec 21, Blk B-5. You could give them a call and see if they are interested in your interests in and around there.
Apache has a slew of Horizontal Wells just to the South of Sec 7, Blk B-10. You could see if they are interested in your interests.
As far as Bonus Rates, I just couldn't tell you other than to say not as much as further South and further West in Winkler.
Wish I had better news.