E nergy analysts sometimes speak of oil’s “golden era,” that 100-year stretch between 1874 and 1974 when the real price was relatively stable within a range from $10 to $20 per barrel (BP, 2008) in 2007 dollars. Figure 1 shows that in recent decades, that stability has ended. In October 1973, several Arabic members of the Organization of the Petroleum Exporting Countries (OPEC) announced that i...