energy information administration natural gas annual 1999 1 overview in consumption reached 21 7 trillion cubic feet 2 percent higher than the previous year while marketed production at 19 6 was less 1998 level imports continued to take on a greater role contributing supplies as net accounted for 16 of us wellhead prices rose substantially by 11 and electric utility followed this trend with 9 increase declined other end use sectors but relatively small amounts ranging from 3 supply united states had which historical peak note totals may not equal sum components due independent rounding sources eia form 176 report supplemental disposition 895 monthly quantity value 816 liquids 759 power plant office fossil department
