There is a suggestion that we have Shale gas reserves - not sure about oil though.
http://www.bloomberg....5-years-to-start.html
"Energy Minister John Hayes said last month the U.K. plans to allow companies to resume shale gas exploration this year to take advantage of “an exciting opportunity.” Exploitation of the U.K.’s shale-gas reserves may meet 10 percent of U.K. demand for more than 100 years, according to the Institute of Directors"
The one example of shale gas exploitation that happened in the UK was up at Blackpool, and that lead to small scale earth tremors which is worrying. The US is a continent, and as such has a far larger area to explore and drill and frack in areas that are remote from built up areas.
So, not sure to what extent the UK can or wants to exploit shale gas reserves...