Angela Knight, chief executive of industry trade association Energy UK, has defended the profits the sector makes.
She told BBC Radio 4's Today programme that profits are dependent on world energy prices were necessary so companies could invest in infrastructure.
"Profit is actually a good thing and a very important thing because of the huge amount of investment that needs to be made in this country."
More top news
The Suitsy: Man creates business suit onesie
Alex Salmond has announced his intention to end a 24-year career at the forefront of Scottish politics. Here is a brief look at his career.
Britain is among the least devolved countries in the world, figures from the RSA show.