To put another thought on what causes a shortage.
I'm south of Tennesseemom in Murfreesboro, ONE of our Kroger Supermarkets has 8 fuel nozzles. They alone go through 6 tankers a week. So if they miss one tanker, they're empty. Also considering that a not quite full tanker is roughly 5000 gal. we're talking quite a lot of fuel a week at this site. Now start counting the number of stations you pass, roughly one every 3/4 mile if you're in town. Any interruption in delivery makes a huge impact.
Sploke has raised valid concerns. Biking only works if you're close and can do so safely. When I worked in Nashville I had a 40 mile commute one way, there was a regional bus route, but would require meeting the bus at 5:45, arriving downtown at 8:15, then leaving downtown at 4:20, arriving back at my car at 6:00. This type of schedule doesn't leave much time for work or anything else. Also note that unless you worked within 4-5 blocks of the downtown exchange, it's not even thinkable.
I'm personally for more drilling, compressed natural gas, electric, and any other ways to drive transportation that are available. We shouldn't arbitrarily create a shortage, we should allow all to compete openly without interference. The most economic will prevail in the areas where it makes economic sense. I would guess electric inside cities and leaning to CNG/Gasoline/Diesel as the needed distance to cover increases.
Ok, It wasn't my intent to rant, but it seems to have turned out that way.
John.