CALGARY, Alberta, March 7 (Reuters) - Penn West Petroleum Ltd, a Canadian oil producer in the midst of a restructuring aimed at boosting its flagging shares, said on Friday its fourth-quarter loss widened considerably as it sold producing properties and wrote down the value of other assets.
The company lost C$728 million ($664 million), or C$1.49 per share, in the quarter, compared with C$78 million, or 16 Canadian cents, a year earlier.
Penn West, one of Canada's largest conventional oil producers, is revamping its operations after years of underperforming its rivals. New Chief Executive Dave Roberts has cut staffing by a third and put much of the company's widespread properties up for sale to concentrate on its three core regions.
The company said its loss consisted mostly of a C$742 million writedown of assets.
Penn West's cash flow, a measure of its ability to pay for new projects and drilling, dropped 27 percent to C$216 million, or 44 Canadian cents per share, from C$295 million, or 62 Canadian cents.
Production fell 19 percent to 123,995 barrels of oil equivalent per day as the company sold off properties.
Penn West shares rose 2.8 percent to C$8.94 by late morning on the Toronto Stock Exchange.