Provident Energy Trust, Calgary, (Toronto: PVE.UN; NYSE: PVX) plans to acquire producing assets in the Rainbow and Peace River Arch areas of northwestern Alberta from an undisclosed private U.S. company for a total estimated purchase price of C$475.9 million after adjustments. The assets include more than 280,000 net acres (more than 80,000 net acres undeveloped) in shallow reservoirs in the Rainbow, Haro, Boyer and Rainbow South areas, and from multiple zones in the Pouce Coupe and Gordondale areas in the Peace River Arch, with 97% operatorship and an average 75% working interest.