- Riverstone Energy reported an 11% increase in its third-quarter net asset value following a strong operational performance at its coal investments.

Net asset value grew to $20.45 per share, while profits grew to $59.8m, the company said.

"This reflects continued operational successes at the portfolio level, in particular of Centennial, as well as the company's overall emphasis on low-cost basins," chairman Richard Hayden said.

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