For those who are curious about the buyer of the Helis/Sundance South Antelope acreage, it's QEP Resources (NYSE: QEP). Here are the details:
http://seekingalpha.com/article/826291-qep-resources-pays-top-price-for-top-quality-asset
Judging from their stock price (up 6% today), shareholders see a win-win situation with this sale.