Chris O'Shea said Britain was at risk because of a lack of gas storage facilities. His warning came as gas prices surged to their highest level in a year, driven by concerns about threats to Middle Eastern supply. Mr O'Shea, the chief executive of Centrica, which owns British Gas, said: "European gas storage levels are low. He is pushing for government support to help keep offshore gas storage facility Rough Field operational. Attacks in the region have pushed crude oil prices to $100 a barrel, while European gas prices have climbed to their highest level in a year, exceeding €62 per megawatt hour.