Russia's TNK-BP, half-owned by oil major BP , said on Monday Chief Executive Robert Dudley has submitted his resignation.

German energy group E.ON said on Thursday it hopes to cut bills for its UK customers in 2009 if wholesale gas and electricity prices carry on falling.

London-listed Chilean miner Antofagasta posted a 3 percent rise in its nine-month core profit on Thursday as higher production outweighed flat prices and surging costs.

Oil rose to above $51 a barrel on Wednesday, after a near 7 percent fall the previous day, when data showed the U.S. economy last shrank at its fastest pace in seven years, reflecting slowing demand in the world's largest oil consumer.

Global miner BHP Billiton called off its $58 billion (38 billion pound) bid for rival Rio Tinto on Tuesday, citing worsening market conditions and demands for asset sales from European regulators.

The ESB has unveiled its plans to expand into the UK with its multi billion euro investment in several new power plants.

Oil rebounded from an early three-and-a-half year trough below $49 a barrel on Friday, tracking Asian equities that bounced back on rumours that China may cut interest rates later in the day.

National Grid announced a 4 percent increase in half year profits, driven by a strong performance in its gas distribution business, and forecast full year results in line with its expectations.

National Grid posted a 4 percent increase in half year profits, forecast full year results in line with its expectations and said the outlook for 2008/9 was positive.

British Energy has reported that pre-tax earnings in the first half plummeted 50 percent to £257 million due to lower electricity output.

Nuclear power station operator British Energy posted a 49.7 percent fall in first-half earnings on Tuesday due to power station shutdowns and lower electricity output, but said it hoped for a better second half.

Oil fell over $1 to below $56 a barrel on Monday, dropping to near its lowest in almost two years after a meeting of the Group of 20 major economies ended with few actual proposals on how they would combat a global recession.

Mining giant BHP Billiton is facing lost sales of up to $600 million (403 million pounds) in its iron ore business in the second half of 2008, a newspaper reported on Saturday.

Centrica is reviewing the economic viability of planned wind farms due to soaring costs and the credit crunch, the owner of British Gas said.

Oil, gas and mining engineer AMEC said on Wednesday it is confident of delivering a margin in excess of 6.5 percent this year as it saw a continued strength in demand for its services.

International Power expects 2008 to be another year of growth, the power station operator said on Thursday.