The UK oil and gas industry says it has suffered its worst losses in decades and is facing a bleak future.
Falling oil prices and rising costs meant the sector spent billions more than it earned in sales last year and now it is calling on the government to help.
ITV News Reporter Sejal Karia has more:
A new report has found "striking evidence" of how rising costs, taxes and "inadequate regulation" have taken their toll on energy companies.Read the full story ›
Two British oil companies have posted huge drops in profit for 2014 compared with the year before.
BP reported a 20% drop in underlying profit for the fourth quarter of 2014, dropping to $2,239 million, compared with $2,809 million for the same period in 2013.
BP said the fall in profits was due to tumbling value of oil, with chief executive Bob Dudley saying: "We have now entered a new and challenging phase of low oil prices through the near and medium term."
Britain's third-biggest energy company BG Group full-year total operating profit fell 14% year on year to $6.5 billion, while earnings slipped 8% to $4 billion.
Ed Miliband says Britons has attacked the Conservatives for "denial, complacency and failure" on the British public's standard of living.
After David Cameron suggested companies benefiting from falling oil prices should pass the savings on to staff in pay rises, the Labour leader said the Prime Minister's words would have people "choking on their cornflakes".
"This is someone who has spent months and years telling us there was no cost of living crisis, and then if there ever was one, it had been fixed," he said.
He criticised Cameron for "running from" the planned TV debates, and claimed that "for the first time since the 1920s, working people will be worse off at the end of a government than they were at the start."
Labour says falling oil prices will not solve "deep-seated" problems in the UK economy with stagnant wages.
Shadow treasury minister Shabana Mahmood said working people were "£1,600 a year worse off under David Cameron and said that "wages continue to stagnate".
She also criticised the Conservatives for blocking Labour proposals to give energy regulator Ofgem more control over household bills.
David Cameron says he wants falling oil prices to be passed on in all ways possible. But just this week the Tories voted against Labour’s plans to give the regulator the power to force energy companies to cut their prices when wholesale costs fall.
Asked whether he would encourage firms to pass on some of the windfall profits from falling oil prices in higher wages, David Cameron said he wanted firms to increase wages.
Obviously I want to see companies' success passed through in terms of wage increases.
It has to be done in a way that's affordable, and in a way that companies can continue to grow, we need to see productivity increase.
Companies that can afford to pay the living wage should. It's good and helps to reduce the welfare bill.
Falling oil prices is going to benefit a lot of businesses and a lot of countries and we want to see those benefits passed through in all the ways they can be.
David Cameron has said firms should pass on the benefits of falling oil prices to their staff.
The Prime Minister said plummeting costs were a real boost for many businesses and workers should reap the rewards
He called on companies that could afford it to pay staff the living wage, currently set at £7.85.
Mr Cameron was speaking in Washington during a two-day visit to the US for talks with President Obama.
The price of Brent crude oil prices has fallen below $50 (£33) a barrel for the first time since May 2009.
Benchmark Brent crude futures fell more than a dollar to $49.92 a barrel this morning, later rising back above $50.
Analysts said that further price falls were likely because of an excess of supply and sluggish demand
Shippers, airlines and motorists stand to gain from the fall.
Bank of England governor Mark Carney said last month that the oil price slide was a "net positive development" for the UK.
Approximately 10,000 gallons of crude oil has leaked onto the streets of Los Angeles after a high-pressure pipe burst.
It is believed to have covered a half-mile area and is knee deep in some areas.
Locals have tweeted pictures of the flowing oil on the streets:
Approximately 10,000 gallons of crude oil sprayed on to the streets of Los Angeles after a high-pressure pipe burst. The oil was seen shooting up into the sky and onto streets and nearby businesses.
The Los Angeles fire department says the spill covered a half-mile area and is knee deep in some areas.
No injuries have been reported.