The director of Premier Oil says no new North Sea projects are profitable with oil below $60 a barrel and the industry is "close to collapse".
Switzerland's National Bank will bring in a negative interest rate cutting the value of any money left on deposit in the country.
President Vladimir Putin seeks to ease fears over Russia's economy, insisting that the dramatic fall in the rouble will stabilise.
Recent falls in the price of oil are likely to be temporary, says the oil minister for Saudi Arabia, Opec's biggest producing nation.
UK retail sales rose at their fastest annual rate in more than 10 years in November, thanks to the effects of Black Friday.
Snapchat founder Evan Spiegel left "devastated" as plans for his messaging app are leaked as part of the Sony Pictures hack.
UK mortgage lending in November returned to the level seen a year earlier, lenders say, offering more evidence of a post-summer slowdown.
The government made £180m less from the sale of Royal Mail than it could have, and the process of privatising state assets should be reformed, says a new report.
Agreement is reached between the government and the country's biggest mobile networks to improve coverage across the UK.
US Federal Reserve says it will be "patient" in deciding when to raise interest rates, with most analysts expecting a rise in mid-2015.
People in the UK are using less energy, even though the economy is growing, new figures confirm.
UK shares jump as investors react to the latest comments from the US Federal Reserve, while energy shares are boosted by a rise in the oil price.
Beauty company Avon has been fined by the US Securities and Exchange Commission for paying bribes and gifts to Chinese officials.
The German government approves plans for a controversial road toll, including charging foreigners for using the Autobahn.
Fracking, the controversial method of oil and gas development, will be banned in New York state after a report concludes the process poses "significant public health risks".
Russia says it is planning new measures to stabilise the rouble after its slump against the dollar.
More shares in Lloyds Banking Group are to be sold by the government, in a move which could raise up to £3bn.
Employers could scupper the season of goodwill by leaving their staff exposed to a tax charge after their Christmas party, accountants warn.
Singer Rihanna will "directly influence product collections" in her new role as women's creative director at Puma.
Pension savers with the smallest pots can be exposed to the highest levels of charges, an independent report reveals.
Wage growth picked up in the three months to October and outstripped the rise in the cost of living, while unemployment fell again, official figures show.
Petrol could soon sell for less than £1 a litre thanks to the plummeting price of oil, motoring organisation the RAC has predicted.
The prolonged slump in the price of oil forces oil-export dependent Nigeria to revise its budget plans, prompting its currency to fall to a record low.
Chancellor George Osborne is to deliver his last Budget of the Parliament on 18 March 2015, weeks before the election.
A committee of MPs criticises the government after saying taxpayers have been left "bearing all the risk" from purchases of new trains worth £10.5bn.
How Paul Lindley, the boss of Ella's Kitchen, built up the UK's largest baby food business.
Malawian business tycoon Mike Mlombwa tells the BBC how to deal with red tape and stay on the right side of the law when doing business.
A growing number of small firms are boosting sales thanks to securing celebrity endorsements, but doing a deal with a famous figure doesn't necessarily guarantee success.
The SPFL is to withhold £250,000 due to Rangers for broadcast fees to cover a fine relating to employee benefit trusts.
Fifa dismisses a complaint from its own World Cup corruption investigator Michael Garcia as well as two whistleblowers.