The US agency Standard and Poor’s has said it had placed two of its ratings on the Russian state oil group Rosneft on “credit watch” following the company’s acquisition of the main production unit of troubled oil giant Yukos.

S and P said its B corporate credit and senior unsecured ratings had been placed on credit watch “with developing implications.”
It added that the credit watch actions “reflect major uncertainties regarding the financing of the acquisition and the tax and litigation risks associated with Yugansk.”
Rosneft has become the new owner of Yukos’ core oil-pumping subsidiary, Yugansk-neftegaz, also known as Yugansk.