sentences:  The French oil group Total has increased its stake in SunPower by acquiring an additional 676,000 shares from the American solar panel producer, according to a regulatory document filed with the SEC, the gendarme of the American stock exchange.Total acquired these shares between February 13 and 14 at a price between $8.27 and $8.90 per share, according to the statement.In addition, SunPower entered into an agreement with Total's solar energy subsidiary, Total Solar, to repurchase $56.4 million of its bonds due 2021.