Despite failure to reach a deal to curb oil output and support prices at a 17 April meeting of Opec and non-Opec producers, crude prices have maintained a general upward trend since hitting a 12-year trough in mid-January.

"The price is $45, which is not so bad," Widhyawan Prawiraatmadja told Reuters on the sidelines of an energy event in Abu Dhabi.

"If