The company's net income fell to C$120 million, or 10 Canadian cents per share, in the second quarter ended June 30, from C$628 million, or 63 Canadian cents per share, a year earlier.

A one-time provision of $157 million for a corporate tax increase in Alberta and other items also affected the company's second-quarter net income.

However, total production rose slightly to 337 million barrels of oil equivalent per day (mboe/day) from 334 mboe/day.

(Reporting By Darshana Sankararaman and Anet Josline Pinto in Bengaluru; Editing by Simon Jennings)