dennis said:
why is the cost of deisle more than gas ?
Allow me to tackle this if I may. There are several reasons as to why this is so:
1) The largest users of diesel fuel are commercial vehicles (tractor trailers, trains, some planes, etc) and farm equipment. Tractor trailers are without a doubt the most vital tool to keep the US economy moving. Truckers cannot buy less diesel fuel or park their trucks. Rail companies cannot say "we're not going to ship anything across the country"...it would criple the US economy. Keep in mind that most trains and tractor/trailers average about 6 miles to the gallon versus a little over 20 MPG for a consumer vehicle. Thus, the amount of fuel consumed by the trucking/agriculture industries is staggering when compared relatively to regular gasoline. It's simple...diesel fuel keeps the country running so it can be sold at a premium. Normally, trucking and rail companies just pass these increased costs along to their customer which then trickle down to the end user, so the cost of diesel fuel isn't as big of a deal as you'd think. The companies basically say "...we will ship this truckload of goods to this location for $xxxxx...take it or leave it". It costs me pretty much the same amount of money as it would cost you to make that shipment so the consumer really doesn't have many options to choose from with respect to what freight company to use. We both have insurance costs, truck maintenance, driver wages, and we both have to spend about the same for diesel fuel.
2) A refinery is able to generate much more gas out of a single barrell of oil than it can diesel, so it makes more sense from an economic sense to use their oil to make gasoline. Look at it this way for simplicity:
1 barrel of oil may be used to make either 20 gallons of gas or 17 gallons of diesel.
20 gallons of gas @ $2.90 per gallon = $58.00 in revenue.
17 gallons of diesel @ $3.10 per gallon = $52.70 in revenue.
There's just more money in gas right now.
3) Following Hurricanes katrina and rita, there was a great deal of talk/fear about a national gas shortage. So, refineries dedicated much more refining capacity towards the production of gasoline leaving diesel a little short on the supply side.