Will the price of petrol/gasoline dictate the success of the electric car market?

One interesting point which has emerged over the last few months is the fact that due to the massive difference in gasoline/petrol prices across the world, electric vehicles may well be more attractive to drives in countries such the UK as opposed to the US, where the cost of recharging electric car batteries has been criticised.

Could we see the price of petrol/gasoline dictating whether individual country electric car sectors are successful?