I just saw a letter to the editor that made me think.
There is a proposed Keystone XL pipeline to be built from oil fields in Canada to Texas or Gulf coast ports.
The Repulsicans are pushing it as a jobs growth endeavor, many Demoncrats oppose it on environmental concerns or oil spills and pollution of ground and drinking water.
I don't know much about it, haven't read much or studied it at all.
But the letter writer pointed out that there are oil refineries in North Dakota, and why not build the pipeline to send the oil there and then ship the gas for use in the US.
According to the writer, the only reason to send it all the way to Gulf ports is so it can be loaded onto ships to sell to higher paying buyers overseases, or in S. America; thus not really helping us with gasoline supply or prices.
This letter is from a liberal, environmentally conscious newspaper, and I don't vouch for the claim or the writer, but it sure is food for thought. There was other newspaper reports a few weeks back that for the first time in 40 years or so, the US is actually exporting gasoline to higher priced markets elsewhere.