So you see the Government has no control over the cost of a barrel of crude but they do over the tax. So there is your only logical complaint.
There is obviously some underlying political argument that I'm unaware of. I don't know how it works in the US but in the UK a large proportion (something like 75% I believe) of the price of fuel is tax. This makes the real price of our $7 gallon actually $1.75 before duty & tax.
The Government can obviously affect the price of petrol overnight if it wishes & until recently fuel duty was increased at every annual budget. If the price of a barrel of oil rises so does the tax revenue. A hidden benefit of percentage taxes like 17.5% VAT which is added on after the fuel duty. If the product price rises the amount of VAT revenue increases accordingly. This affects every other commodity you can think of & the economy as a whole. Due to the recent large increases in oil prices fuel duty in the UK has remained static for the last couple of years. This is obviously a local thing & does not affect fuel prices in other countries.
The actual price of a barrel of oil is set by OPEC which could be thought of as politically orientated. It's their decisions which affect the everyday prices of the basic product. http://www.opec.org/home/