Propane/Propylene Supply and Disposition, 1973 - Present (Thousand Barrels per Day) -------------------------------------------------------------------------------- Supply Disposition -------------------- --------------------------------- Total Stock/a Refinery Product Year/Month Production Imports Change Inputs Exports Supplied -------------------------------------------------------------------------------- 1973 Average 854 71 30 8 15 872 1974 Average 805 59 11 9 14 830 1975 Average 783 60 36 11 13 783 1976 Average 766 68 -22 12 13 830 1977 Average 775 86 21 10 10 821 1978 Average 758 57 15 13 9 778 1979 Average 721 88 -61 14 8 849 1980 Average 711 69 4 12 10 754 1981 Average 745 70 c 18 5 18 773 1982 Average 711 63 -59 4 31 798 1983 Average 730 44 c -24 4 43 751 1984 Average 806 67 c 7 4 30 833 1985 Average 816 67 -50 3 48 883 1986 Average 817 110 64 4 28 831 1987 Average 828 88 -41 8 24 924 1988 Average 863 106 7 8 31 923 1989 Average 862 111 -52 11 24 990 1990 Average 878 115 48 (s) 28 917 1991 Average 915 91 -3 (s) 28 982 1992 Average 956 85 -24 (s) 33 1,032 1993 Average 963 103 34 (s) 26 1,006 1994 Average 969 124 -13 0 24 1,082 1995 Average 1,021 102 -10 0 38 1,096 1996 January 995 151 -353 0 30 1,468 February 1,001 106 -347 0 39 1,415 March 1,043 116 -1 0 25 1,135 April 1,047 78 114 0 31 981 May 1,048 104 209 0 21 922 June 1,031 122 293 0 21 839 July 1,043 114 188 0 29 940 August 1,051 126 83 0 24 1,069 September 1,057 95 97 0 21 1,034 October 1,058 151 -37 0 29 1,218 November 1,063 147 -148 0 34 1,324 December 1,093 122 -106 0 31 1,289 Average 1,044 119 (s) 0 28 1,136 1997 January 1,039 149 -340 0 28 1,501 February 1,044 126 -276 0 42 1,404 March 1,059 114 92 0 40 1,041 April 1,112 109 150 0 32 1,039 May 1,114 92 252 0 23 930 June 1,110 88 250 0 31 916 July 1,083 87 231 0 24 916 August 1,095 108 172 0 24 1,007 September 1,110 89 30 0 16 1,152 October 1,110 122 17 0 29 1,185 November 1,099 114 -223 0 48 1,388 December 1,127 159 -342 0 53 1,576 Average 1,092 113 3 0 32 1,170 1998 January 1,062 139 -303 0 29 1,475 February 1,066 204 -87 0 28 1,329 March 1,089 132 -77 0 28 1,270 April 1,091 183 241 0 22 1,011 May 1,068 136 427 0 22 755 June 1,050 179 329 0 13 886 July 997 124 222 0 17 882 August 1,041 157 177 0 15 1,006 8-Mo. Avg 1,058 156 117 0 22 1,075 1997 8-Mo. Avg 1,082 109 69 0 30 1,091 1996 8-Mo. Avg 1,033 115 25 0 28 1,095 -------------------------------------------------------------------------------- a A negative number indicates a decrease in stocks and a positive number indicates an increase. c In January 1981, 1983, and 1984, a new stock basis was established affecting stocks reported and stock change calculations. Stock changes are calculated using new basis stock levels. (s) = Less than 500 barrels per day. Notes: Geographic coverage is the 50 States and the District of Columbia. Totals may not equal sum of components due to independent rounding. Source: Energy Information Administration/Petroleum Supply Monthly, Table S8. ------------ For additional information, please contact the Energy Information Administration's National Energy Information Center at (202)586-8800.