0902 GMT - BP's permanent appointment of interim chairman Ian Tyler isn't a surprise but might be seen as too conservative, AJ Bell's Dan Coatsworth says. "Tyler is more of a known quantity than his predecessor Albert Manifold, having joined BP's board nearly 18 months ago and sat in the chair's seat since Manifold's acrimonious departure in May," AJ Bell says. The appointment may be seen as too cautious, as Manifold's hiring as an outsider was to shake up the oil major. "The initial market reaction suggests Tyler's appointment hasn't sparked much in the way of excitement or disquiet, and CEO Meg O'Neill will hope it gives her the space and time to make the changes she wants at the business," Coatsworth adds. Shares are down 0.8%.