The sale was made to pay Yukos' US$ 27.5 billion tax bill, Yuganskneftegaz was originally sold for US$ 9.4 billion to a little known company Baikalfinansgroup which was later bought by the Russian state-owned oil company Rosneft .
Rosneft share prices are rising. 
( z1 rise :ARG1 ( z2 thing :ARG2-of ( z3 price :ARG1 ( z4 share :poss ( z5 company :name ( z6 name :op "Rosneft" ) ) ) ) ) )