Fracking is also helping to downsize the U.S.' trade gap by improving the competitiveness of energy-intensive firms – especially manufacturers.
Abundant natural gas from shale has roughly halved the cost of U.S. natural gas since 2008. As a result, prices are now more-than twice as high in Europe and three-and-a-half times in Japan.
Low-cost manufacturers in emerging markets are also seeing their competitive position eroded.
Since gas also helps set the price of electricity, this has an impact for a wide range of businesses. Research firm IHS estimates that lower natural gas and electricity prices will boost industrial production in the U.S. by 3.9 percent by 2020, resulting in additional trade benefits of $180 billion a year by 2020, relative to 2012.
This shale supremacy puts at risk another source of U.S. dollars: capital flows.
Read MoreOPEC slams oil producers' 'go-it-alone' attitudes
U.S. investors' exposure to emerging markets has risen sharply since 2008, from $450 billion (or 2.5 percent of emerging market gross domestic product) to $1.3 trillion (or 5 percent), according to figures from the Institute for International Finance.
By making the U.S. a more dynamic economy, and increasing the relative attractiveness of American assets compared with emerging market assets, the shale revolution may contribute to a structural flow of portfolio capital flows back to the country.
In fact, the 2013 "taper tantrum" may have provided a cyclical taste of a larger structural shift. In just one quarter, the exposure of U.S. investors to these markets dropped by $100 billion.