Guardian: Energy firms will refuse to pass on all of the savings they make on cheaper wholesale gas and electricity to consumers, one of the UK’s top energy bosses admitted this weekend. The warning, issued by Paul Golby, chief executive of Eon UK, came after a week in which the price of oil tumbled to just above $40 a barrel. As the government demands that the banks give borrowers the benefit of the latest cut in interest rates, energy companies are also coming under increasing pressure to cut …