UPDATE 1-BP agrees to sweeten sale of North Sea assets to Premier Oil <!-- no image --> <div>* BP agreed to make part of payment contingent on oil price rise<div class="feedflare"> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=IHDlMSeFRmE:hE24IrpYjVM:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?d=yIl2AUoC8zA" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=IHDlMSeFRmE:hE24IrpYjVM:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=IHDlMSeFRmE:hE24IrpYjVM:V_sGLiPBpWU" border="0"></a> <a href="http://feeds.reuters.com/~ff/reuters/UKBankingFinancial?a=IHDlMSeFRmE:hE24IrpYjVM:F7zBnMyn0Lo"><img src="http://feeds.feedburner.com/~ff/reuters/UKBankingFinancial?i=IHDlMSeFRmE:hE24IrpYjVM:F7zBnMyn0Lo" border="0"></a> </div><img src="http://feeds.feedburner.com/~r/reuters/UKBankingFinancial/~4/IHDlMSeFRmE" height="1" width="1" alt=""></div> Posted by Reuters