RUMBLINGS IN THE OILPATCH

One of Canada's largest oil companies says it quit a major industry lobby group for refusing to join the Saskatchewan premier's war against a carbon tax.

The decision by the firm, Crescent Point Energy, to quit the oil industry group, the Canadian Association of Petroleum Producers (CAPP), has stunned industry watchers and sparked a war of words between the premier and a federal Liberal member of Parliament over the decision.