energy information administration petroleum 1996 issues and trends 65 us import dependency has almost doubled since the mid 1980 s to 8 4 million barrels a day crude oil risen even faster by accounted for nearly 90 percent of net imports refiners were running over 1 more imported than domestic this chapter examines decade growth in describes role that factors such as regional shifts world supply demand balances expanded capability refinery complex environmental legislation have played changing quality sources these growing dependence introduction total products increased dramatically reaching record 9 last year accounting half used domestically exports also same period but only modestly thus sharply cost 60 billion both
