There is another pipeline coming online also that is domestic, but there still is bottleneck. The only reason Europe doesn't completely support sanctions against Russia is Russia's oil. Guess what the TransCanada pipeline frees Europe and bankrupts Russia. Anything would help, and it would raise US oil by $5 a barrel. They are estimating that the Brent spread is going to increase.
You are crazy, stating that rail is efficient. That is why Cushing crude is substantially lower than Brent. It takes so much more money to bring it to market. Obama has held the one thing that would lower the cost....The TransCanada pipeline. It would be cheap and would bring oil from N. Dakota and Oklahoma to the refineries and also for sale to Europe. Oil will continue to accumulate due to this.