Conservative MP Robert Halfon said the price of petrol at the pumps has risen by a "huge amount" since 2009.
Speaking to Daybreak he said he warned that petrol price fixing had gone on "a year ago".
He added: "We had a whistleblower approach us, we urged the office of fair trading to do a full investigation, they did a partial Sir Humphry investigation, and we say enough is enough."
More top news
The former leader of Hong Kong Donald Tsang has been jailed for 20 months after being convicted of corruption over a luxury apartment.
Girls born in South Korea in 2030 are predicted to be the first to break the 90 barrier, according to researchers from Imperial College.
Hundreds of hotels in the UK have poor food hygiene ratings, some which need improvement urgently, but are withholding them from the public.