Estimating Useful Life, Percent Used Up, and Gain or Loss on Disposal Husky Energy is one of Canadas largest integrated energy companies. Based in Calgary, Alberta, Husky is publicly traded on the Toronto Stock Exchange. The Company operates in Western and Atlantic Canada, the United States and the Asia Pacific Region with upstream and downstream business segments. The company uses IFRS to prepare its financial statements. During 2018, the company reported depreciation expense of $2,591 million. The property and equipment footnote follows.