It's not too hard to follow the price of a barrel of gas, as anyone who reads a newspaper or online news can find those headlines easily. On April 16, a barrel of crude oil closed at $114.50, up $4 a barrel from last week and up $46.51 from last year.

What that means on the ground in The Valley is that gasoline prices ranged from $3.25 to $3.30 last week, and started this week at $3.35 to $3.37. On Wednesday, prices went up to $3.43 and $3.45 for a gallon of regular gas.

So whose call is it when local stations send their employees outside to face the glowering scowls of motorists while they increase the prices a dime a gallon?

Naiveté regarding capitalism aside, how did that gas in the large underground tank suddenly become more expensive? Do the purchasers of bulk gas pay some sort of add-on cost when gas prices go up while their bulk tank is still half full?

Can someone explain how the call gets made to increase the prices? Is there some method the penny-conscious can follow? Always fill up before midweek?

Without casting aspersions on the responsible and fair people who own the local gas stations, from the consumer end of things, it feels like there's some gouging going on -- not at the level of the local businesses but somewhere (perhaps ExxonMobil with their history making 2006 and 2007 profits?).

According to the federal government, gas prices will continue to rise as the summer "driving season" approaches and demand increases. Put another way, prices will go up because of demand, and prices will likely go up even more as the value of the dollar continues to fall and the price of a barrel goes up.

So, local gas station operators, let us know. How does this work?

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