Shareholders in Canadian energy group EnCana have voted to split the energy company into two separate businessesÔÇöone focused on natural gas, the other on the Alberta oilsands. Following approval of the move, Calgary-based EnCana will focus exclusively on gas, while its oil and refinery assets will be spun off into a separate company, Cenovus Energy, which is valued at C$21 billion (US$19.8 billion). The natural gas assets will be run by Randy Eresman, EnCanaÔÇÖs chief executive. Cenovus will be headed up by Brian Ferguson, EnCana's current chief financial officer.