LONDON (Standard&Poor's) March 25, 2013--Standard&Poor's Ratings Services said today that it has not changed its ratings and outlook on U.K.-headquartered oil major BP PLC (A/Positive/A-1) in light of BP's recent announcements. BP has completed the sale of its 50% stake in TNK-BP International Ltd. and has subsequently announced that it will buy back $8 billion of its shares over the next 12-18 months. From a weak level in 2012, our base-case scenario projects that BP's fully adjusted credit measures will strengthen over 2013 and 2014, taking the buy-back and likely lower Russian dividend stream into account. We continue to believe that we could raise the long-term rating by one notch if the ratio of funds from