1.   At that time, diesel prices in California spiked briefly, but settled back down by the end of that year.

2.   In fact, earlier this year, retail diesel fuel prices were lower in California on average than in Nevada.

3.   All those factors have also affected diesel prices.

4.   California truckers are particularly angry because diesel prices in the Golden State have climbed far more than in neighboring states.

5.   Consumers have felt the pinch of higher gasoline prices, but some truckers say that soaring diesel prices could drive them out of business.

6.   Earnings are being helped by improved productivity, moderate weather and lower diesel fuel prices, in addition to grain shipments recovering from a weak year-earlier period.

7.   Heating oil and diesel prices, in particular, had already been rising as a result of anticipated strong demand at a time of low inventories.

8.   However, Imbrecht said he is not sure when an increase in supply would translate into lower diesel prices at the pump.