The world price of oil has started to move higher again. One should be careful not to read too much into this. Still, it is an interesting and mildly encouraging turn of events. And it is having some impact on foreign trade figures. For example, the U.S.  trade deficit in goods and services did nothing but decline significantly from October of last year through February. In the latest results, for March, it reverted more to form. Also noteworthy are the trade positions of some chief trading partners of the U.S.