Some analysts have raised doubts on the wisdom of the recent deal. Though the Kashagan field has been under development for 12 years, involving an investment of almost $50 billion, the output isn't great. Even the earlier acquisition of Imperial Energy Corporation has not met the targets.
ONGC Videsh Ltd (OVL) on Wednesday said its $5 billion bid to buy a stake in Kazakhastan's biggest oilfield has been blocked by the central Asian nation.