Why are you people so dumb? Oil is priced in US petrodollars. As the value of the pound slides - the price you pay rises. Instead of whinging about the price of oil - cut the deficit and make the pound rise. Then your pound will buy more oil. Geddit yet? It's basic schoolboy economics.
And then with a high pound our exports become too expensive for other countries and imports too cheap for our industry to compete and our economy is once again in the brown and smelly. It's basic schoolboy economics Isn't capitalism wonderful?