Premier Calvert has announced that Saskatchewan intends to sue the federal government.

Prime Minister Stephen Harper has dared provinces to sue the federal government over promises on equalization -- and now Saskatchewan Premier Lorne Calvert is taking him up on that challenge.

Calvert has maintained the federal government promised to take non-renewable resource revenue out of the formula used to calculate equalization payments and argues Saskatchewan is not being treated fairly over its oil and gas revenues...he says the province should get all.....not half.

The premier expects an answer from his lawyers next week.