1.   Also, the introduction last year of cleaner-burning gasoline in California boosted pump prices.

2.   An oil price increase could be on the horizon later this month when the government begins removing two decades of controls on pump prices.

3.   And with pump prices up markedly since then, the actual-expense method bears extra consideration.

4.   At the same time, surging heating oil prices threaten to stymie a big drop in pump prices.

5.   A drop in the price of crude oil -- the raw material for gasoline, heating oil and other petroleum products -- helped spur the decline in pump prices.

6.   A variety of considerations make up the pump price of gasoline, taxes being one of them.

7.   A wallop in the wallet from pump prices left his Nissan Altima stuck in the driveway for much of the summer.

8.   After Memorial Day, however, pump prices began to plunge almost as dramatically as they had soared.

9.   But analysts said this would do little to reduce pump prices in the United States.

10.   For example, a peak in gasoline futures during the past two years was followed by a peak in pump prices about a month later.