Halcon Resources (HK - News) stock rose 9.7% and GeoResources (GEOI - News) 18.7% on Halcon's $973.1 mil bid to buy Geo for natgas liquids. The deal is for 23% over Geo's Tue. close. Geo operates in Bakken and Three Forks shale in the northern U.S., and Eagle Ford and Austin Chalk trends in Texas.