Rocky Mountain (PADD 4) Normal Butane-Butylene Stock Change (Thousand Barrels)



Energy Glossary

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Monthly

Annual

Rocky Mountain (PADD 4) Normal Butane-Butylene Stock Change (Thousand Barrels)

Decade	Year-0	Year-1	Year-2	Year-3	Year-4	Year-5	Year-6	Year-7	Year-8	Year-9
1980's										63
1990's	9	16	-59	26	38	-52	-20	29	9	17
2000's	23	66	-47	25	-124	96	-44	21

Updated on 6/26/2008

Source: U.S. Energy Information Administration