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| Rocky Mountain (PADD 4) Ending Stocks of Naphtha for Petrochemical Feedstock Use (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1986 | 14 | 16 | 26 | 16 | 19 | 41 | 22 | 21 | 18 | 24 | 23 | 27 |
| 1987 | 16 | 19 | 23 | 36 | 12 | 36 | 31 | 36 | 48 | 20 | 21 | 29 |
| 1988 | 28 | 21 | 37 | 21 | 25 | 17 | 24 | 8 | 13 | 19 | 28 | 7 |
| 1989 | 23 | 52 | 57 | 27 | 36 | 51 | 73 | 90 | 48 | 31 | 28 | 20 |
| 1990 | 36 | 39 | 32 | 25 | 20 | 34 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1991 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1992 | 0 | 0 | 8 | 25 | 29 | 27 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1993 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1994 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 11/28/2025 |
| Next Release Date: 12/31/2025 |