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Rocky Mountain (PADD 4) Ending Stocks of Isobutane-Isobutylene (Thousand Barrels) | ||||||||
Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1981 | 65 | 86 | 88 | 90 | 80 | 74 | 98 | 89 | 87 | 80 | 74 | 103 |
1982 | 116 | 97 | 106 | 97 | 87 | 84 | 79 | 71 | 74 | 73 | 66 | 59 |
1983 | 24 | 40 | 47 | 41 | 42 | 38 | 29 | 44 | 48 | 53 | 33 | 52 |
1984 | 105 | 89 | 85 | 94 | 91 | 82 | 106 | 93 | 102 | 108 | 90 | 85 |
1985 | 83 | 102 | 86 | 76 | 83 | 83 | 88 | 90 | 72 | 77 | 64 | 76 |
1986 | 75 | 100 | 96 | 116 | 87 | 88 | 151 | 133 | 153 | 148 | 156 | 120 |
1987 | 127 | 148 | 141 | 124 | 108 | 125 | 120 | 115 | 118 | 117 | 131 | 136 |
1988 | 155 | 142 | 148 | 124 | 112 | 112 | 124 | 127 | 194 | 187 | 162 | 123 |
1989 | 140 | 140 | 132 | 117 | 114 | 99 | 130 | 128 | 115 | 163 | 119 | 131 |
1990 | 132 | 127 | 170 | 150 | 153 | 139 | 129 | 142 | 146 | 151 | 158 | 140 |
1991 | 137 | 137 | 140 | 156 | 149 | 139 | 150 | 140 | 157 | 129 | 120 | 140 |
1992 | 186 | 189 | 188 | 179 | 205 | 124 | 140 | 104 | 154 | 192 | 193 | 172 |
1993 | 151 | 154 | 191 | 224 | 234 | 228 | 177 | 188 | 184 | 169 | 206 | 209 |
1994 | 147 | 166 | 215 | 220 | 195 | 201 | 194 | 173 | 195 | 222 | 169 | 152 |
1995 | 161 | 173 | 190 | 159 | 151 | 138 | 128 | 141 | 158 | 121 | 127 | 177 |
1996 | 134 | 121 | 151 | 211 | 175 | 148 | 153 | 131 | 175 | 173 | 144 | 143 |
1997 | 151 | 124 | 162 | 165 | 167 | 163 | 146 | 167 | 209 | 194 | 150 | 134 |
1998 | 160 | 201 | 190 | 157 | 136 | 158 | 196 | 202 | 198 | 202 | 202 | 189 |
1999 | 189 | 178 | 184 | 161 | 160 | 134 | 149 | 170 | 146 | 120 | 129 | 242 |
2000 | 221 | 243 | 238 | 203 | 219 | 225 | 205 | 216 | 203 | 197 | 176 | 185 |
2001 | 204 | 215 | 222 | 192 | 185 | 224 | 231 | 184 | 192 | 174 | 185 | 182 |
2002 | 180 | 197 | 264 | 242 | 232 | 206 | 237 | 233 | 228 | 242 | 233 | 224 |
2003 | 272 | 286 | 297 | 241 | 208 | 199 | 198 | 197 | 209 | 176 | 177 | 191 |
2004 | 200 | 187 | 220 | 158 | 147 | 166 | 155 | 164 | 198 | 171 | 157 | 164 |
2005 | 159 | 155 | 181 | 155 | 174 | 174 | 142 | 179 | 184 | 147 | 147 | 158 |
2006 | 167 | 178 | 145 | 177 | 183 | 196 | 153 | 167 | 175 | 174 | 183 | 136 |
2007 | 148 | 157 | 193 | 166 | 159 | 147 | 172 | 178 | 201 | 169 | 171 | 172 |
2008 | 179 | 176 | 184 | 180 | 178 | 170 | 168 | 162 | 175 | 161 | 125 | 129 |
2009 | 144 | 154 | 123 | 141 | 147 | 130 | 134 | 139 | 143 | 141 | 181 | 156 |
2010 | 159 | 169 | 158 | 142 | 191 | 163 | 157 | 181 | 165 | 161 | 159 | 152 |
2011 | 158 | 154 | 185 | 172 | 180 | 193 | 174 | 172 | 139 | 167 | 161 | 156 |
2012 | 159 | 160 | 160 | 170 | 170 | 180 | 157 | 128 | 169 | 154 | 194 | 147 |
2013 | 170 | 206 | 154 | 191 | 191 | 177 | 170 | 161 | 194 | 196 | 181 | 183 |
2014 | 205 | 195 | 257 | 229 | 226 | 230 | 246 | 251 | 272 | 265 | 256 | 274 |
2015 | 268 | 266 | 266 | 273 | 233 | 252 | 260 | 269 | 229 | 267 | 307 | 335 |
2016 | 288 | 327 | 306 | 273 | 275 | 262 | 239 | 275 | 246 | 248 | 268 | 258 |
2017 | 255 | 246 | 242 | 250 | 263 | 246 | 258 | 240 | 262 | 259 | 276 | 275 |
2018 | 284 | 280 | 252 | 266 | 249 | 246 | 240 | 252 | 232 | 239 | 264 | 272 |
2019 | 302 | 349 | 424 | 264 | 279 | 305 | 285 | 274 | 258 | 284 | 271 | 273 |
2020 | 468 | 488 | 496 | 477 | 430 | 409 | 395 | 413 | 415 | 424 | 442 | 436 |
2021 | 413 | 433 | 454 | 441 | 419 | 393 | 407 | 408 | 409 | 380 | 444 | 438 |
2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
2023 | -- | -- | -- | -- | -- | -- | -- |
- = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
Release Date: 9/29/2023 |
Next Release Date: 10/31/2023 |