Seperate

As mergers and acquisitions attempt to live up to the pace set during 2000, Denver-based MarkWest Hydrocarbon Inc. reported it has more than doubled natural gas reserves with the $51 million acquisitions of Leland Energy Canada Ltd. and Watford Energy Ltd. — two privately owned exploration and production companies based in Calgary. The companies’ current management, which directs both Leland’s and Watford’s operations, will remain intact, MarkWest said.