Royal Dutch Shell has agreed to sell Western Canadian shale-oil and gas assets valued at… Shell said Thursday it would sell developed and undeveloped acreage in the Canadian provinces of Alberta and British Columbia to Calgary-based Tourmaline Oil Corp. TOU -1.83 % Those assets currently produce dry gas and natural-gas liquids equivalent to 24,850 barrels a day of oil. The deal comes as Shell seeks to shed $30 billion assets world-wide after its $50 billion acquisition of BG Group PLC in February. It represents a further retrenchment for Shell in Canada, where a year ago it shelved plans for a major new oil-sands project and took a $2 billion write-down. “We are strengthening our shales business and creating shareholder value by selling assets that do not fit our near-term development plans,” Andy Brown, the head of Shell’s exploration and production business, said in a statement. The oil-and-gas major called […]