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| Rocky Mountain (PADD 4) Product Supplied of Isobutane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010 | -429 | -449 | -350 | -478 | -571 | -408 | -468 | -488 | -445 | -522 | -481 | -349 |
| 2011 | -332 | -317 | -449 | -376 | -495 | -427 | -409 | -409 | -429 | -456 | -392 | -313 |
| 2012 | -403 | -382 | -462 | -462 | -522 | -519 | -517 | -509 | -420 | -381 | -311 | -199 |
| 2013 | -234 | -357 | -327 | -300 | -310 | -357 | -492 | -363 | -303 | -313 | -353 | -272 |
| 2014 | -301 | -263 | -344 | -387 | -454 | -340 | -458 | -458 | -505 | -386 | -304 | -279 |
| 2015 | -310 | -298 | -414 | -330 | -292 | -344 | -450 | -315 | -315 | -297 | -300 | -376 |
| 2016 | -231 | -144 | -206 | -255 | -208 | -276 | -274 | -291 | -199 | -111 | -316 | -273 |
| 2017 | -168 | -175 | -179 | -259 | -232 | -210 | -272 | -245 | -358 | -255 | -260 | -220 |
| 2018 | -142 | -229 | -348 | -301 | -233 | -207 | -229 | -162 | -292 | -138 | -287 | -177 |
| 2019 | -56 | -181 | -111 | 2 | -250 | -57 | -41 | 53 | 64 | 49 | 108 | 134 |
| 2020 | -287 | -319 | 44 | -135 | -143 | -131 | -231 | -134 | -95 | -170 | -140 | 49 |
| 2021 | -106 | -79 | -18 | -189 | -88 | -480 | -138 | -106 | -210 | -317 | -891 | -211 |
| 2022 | -292 | -304 | -239 | -297 | -326 | -135 | -133 | -33 | -110 | -127 | -250 | -158 |
| 2023 | -141 | -101 | -110 | -175 | -113 | -269 | -77 | -82 | -115 | -132 | -383 | -355 |
| 2024 | -321 | 42 | -131 | -146 | -172 | -306 | -54 | -147 | -127 | -173 | -163 | -170 |
| 2025 | -215 | -158 | -93 | -72 | -133 | -200 | -177 | -120 | -110 | -157 | ||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 12/31/2025 |
| Next Release Date: 1/30/2026 |