Houston-based BG Alaska E&P Inc., a wholly owned subsidiary of BG Group Plc, has signed a participation agreement with Anadarko Petroleum Corp. (NYSE: APC) and Petro-Canada (Alaska) Inc., a wholly owned subsidiary of Petro-Canada (NYSE: PCZ) for a 33.33% equity share in 2.1 million acres of land in the Foothills area of the Alaskan North Slope. Each partner now owns a one-third working interest in the acreage. Anadarko will serve as operator.