It’s not just Chinese firms that are seeking to profit from America’s energy boom. Roughly 20 percent of the $133.7 billion invested in U.S. tight oil and shale gas from 2008 to 2012 came from abroad. To date, from Asia, Japanese companies have invested $5.3 billion; Indian companies $3.55 billion; and Korean companies $1.55 billion. From Europe, U.K. companies have invested $3.95 billion; French companies $4.55 billion; and Norwegian companies $3.38 billion.