Sam Laidlaw, Centrica chief executive, pointed towards the group's tax contribution and investment in future energy sources:
We have taken the lead during 2012 in helping more households save energy and supporting the people who need the most help.
It’s important that Centrica makes a fair and reasonable return so that we can continue to make our contribution to society and to invest.
Last year we incurred a tax charge of over £1 billion and invested over £2 billion to secure new sources of energy for the UK, well in excess of our profits.
More top news
European Council President, Donald Tusk, says Theresa May's settled status offer to EU citizens in the UK risks making things worse.
Cladding panels on three Plymouth tower blocks to be removed "as soon as possible" after tests show they have the worst fire safety rating.
An unsettled weekend in store for many.