UPDATE 1-Alberta holds royalty rates on existing wells, oil sands
January 29, 2016 at 13:22 PM EST
CALGARY, Jan 29 (Reuters) - Alberta's left-leaning government unveiled a new oil and gas royalty framework on Friday that left rates unchanged on existing oil wells and oil sands projects, alleviating fears that costs would rise to punishing levels amid the worst oil price slump in decades.