What are the Economic Issues with Extracting and Using Fossil Fuels, and the Production of Electricity?

-Can be Expensive to Extract and is Increasing due to Reserves used -North Sea Oil is Expensive to Make - if Price of Oil Drops then it would not gain a Profit -It will take Time and Money to find Other Methods for Energy - like Nuclear and Renewable -UK will have to Pay to make sure Energy is Secure because the UK doesn't make Enough.