Royal Dutch Shell may exit oil and gas operations in up to 10 countries in a drive to deepen cost cuts as it weathers weak oil prices and has to pay down debt following its $54 billion acquisition of BG Group, the company said in a statement Tuesday. Shell is active in more than 70 countries and said it would like to focus on 13 important nations where it is making good returns, including Brazil, Australia and the United States. YAHOO NEWS