Feb 15 (LNGJ) - BG Group signed an agreement with EXCO Resources of the US for the divestment of its interests in the conventional natural gas producing assets in the Cotton Valley formation for $132.5 million. The assets, covering about 54,000 net leasehold acres across East Texas and North Louisiana, are not required to be held by BG to hold, drill and produce the undeveloped Haynesville/Bossier formation shale reserves which lie beneath the Cotton Valley formation, it said.








