Encana Corp. reported a loss in its latest quarter as its U.S. operations were hit by a big impairment charge related to the drop in commodity prices. The company, which keeps its books in U.S. dollars, says its loss attributable to shareholders totalled US$1.61 billion or $1.91 per share for the quarter ended June 30. The loss for the quarter included an after-tax $1.33-billion impairment charge as well as a $187-million after-tax hit related to an unrealized hedging loss.