The “Energy Crisis” of 1973-74 began when OPEC, the Organization of Petroleum Exporting Countries, instituted an oil embargo that reduced the amount of oil provided to the United States. This embargo resulted in long lines at gas stations and higher prices for gasoline. A second energy crisis occurred in 1979, with the overthrow of the Shah of Iran, a U.S. ally.

An attendant pumps gas at a busy station in 1974, with waiting cars lined up along the street.