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Monthly
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Download Data (XLS File)
U.S. Isobutane-Isobutylene Ending Stocks (Thousand Barrels)
Year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
1981
9,578
9,748
9,487
9,939
9,796
9,666
9,767
9,464
9,215
9,113
9,109
8,738
1982
8,080
8,270
7,596
7,064
7,452
7,378
7,662
8,059
8,671
9,191
9,254
8,298
1983
7,044
7,095
7,434
8,409
8,896
10,601
10,879
10,220
10,002
10,910
10,539
9,719
1984
9,705
9,933
9,423
9,150
9,206
9,971
9,553
9,318
9,328
9,563
8,962
8,987
1985
8,573
7,621
7,873
7,508
7,743
7,782
7,518
7,273
6,850
7,312
7,074
7,313
1986
6,826
6,877
7,186
7,907
7,913
8,750
9,628
10,473
10,358
9,982
10,159
8,526
1987
7,823
6,898
6,749
6,962
8,231
6,995
7,029
7,707
9,493
10,135
10,208
10,499
1988
9,424
8,720
8,681
9,057
8,795
9,240
9,719
10,145
10,613
10,284
9,664
8,031
1989
7,571
7,883
8,650
8,872
9,322
8,739
8,905
8,898
9,176
9,119
8,858
8,070
1990
6,773
7,486
8,042
8,419
9,488
10,102
10,177
10,946
11,582
11,449
10,923
9,798
1991
9,080
9,086
8,997
8,543
8,749
9,405
8,986
9,954
9,823
9,758
8,977
8,035
1992
10,360
8,364
8,805
8,966
9,145
8,086
7,799
8,961
10,546
11,341
11,358
10,781
1993
10,587
10,427
10,817
11,455
13,342
13,708
14,109
13,390
13,615
12,677
10,970
10,237
1994
10,027
10,480
10,818
10,258
9,837
9,837
9,202
10,166
11,209
10,404
9,340
8,043
1995
7,956
7,363
7,551
8,114
8,774
9,010
9,643
9,863
8,941
8,607
7,573
7,201
1996
6,549
6,268
6,666
7,221
7,109
8,016
8,961
9,452
8,934
9,297
7,898
7,694
1997
7,071
6,143
6,068
6,971
7,975
8,521
9,190
9,506
9,823
9,173
8,417
8,156
1998
8,492
8,300
8,903
8,854
9,030
9,253
8,917
9,366
9,265
8,329
7,730
7,268
1999
7,046
7,242
7,146
7,536
7,802
7,803
8,074
7,565
7,218
7,339
6,862
6,185
2000
5,630
5,614
5,460
5,651
6,040
7,131
8,109
8,184
7,634
6,813
6,116
5,851
2001
5,704
5,787
6,395
6,372
7,642
7,616
7,244
7,880
7,904
7,335
6,712
5,940
2002
5,801
6,806
7,097
7,808
7,788
7,399
7,258
7,512
7,571
7,507
7,128
6,545
2003
6,164
6,043
5,686
5,887
6,134
7,003
6,862
6,957
7,632
8,710
7,567
6,177
2004
5,797
5,476
6,695
6,856
6,565
6,124
6,811
7,316
7,774
5,877
6,090
6,112
2005
6,384
6,729
6,498
7,205
7,442
6,735
6,959
7,736
7,080
7,667
7,479
6,592
2006
6,642
6,747
7,620
8,221
9,441
8,737
7,758
7,683
7,480
7,577
7,773
6,372
2007
6,361
6,968
7,177
7,965
8,662
8,634
8,700
8,366
8,911
9,468
8,155
6,854
2008
7,013
7,074
7,771
8,297
8,578
8,477
8,326
8,959
9,181
8,171
-
= No Data Reported;
--
= Not Applicable;
NA
= Not Available;
W
= Withheld to avoid disclosure of individual company data.
Release Date: 12/29/2008
Next Release Date: Last Week of January 2009
Referring Pages:
Isobutane/Butylene Total Stocks Stocks by Type
Isobutane/Isobutylene Supply and Disposition
U.S. Isobutane/Butylene Stocks by Type