Fuel Price, Higher or Lower

[mat13]

Im sure we have all noticed that in recent weeks the price of fuel has dropped quite dramatically, so what Im asking is do you think its going to go higher or lower in the short term? Obviously in the long term its only going to climb as its a finite resource, however im thinking more in the next year or two.

My main reason for asking is that we run a small family business and have several diesel vehicles and room for a diesel storage tank, with the current low prices im wondering if the cost of buying a second hand diesel tank (around 3-400 pounds) would be offset by the savings we could make against future rises in the cost of diesel.