The Energy Information Administration (EIA) reported new weekly inventory data for purity propane dubbed “Propane, fractionated and ready for sale” in its This Week in Petroleum report issued February 28 for the week ended February 23. The EIA did the same for monthly data in its Petroleum Supply Monthly (PSM) report starting in October for September, with December data slated to be released on Leap Day, February 29. The weekly data showed purity propane stocks at 24.8 MMbbl, about 48% of total US propane/propylene inventories, as seen in the pie graph below:
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- Analyst Insight
EIA Issues New Purity Propane Inventory Data
Total U.S. propane stocks for October 2023 were 70% purity and 30% contained in Y-grade. Most of the Y-grade propane was located in PADD 2 (Midwest) and PADD 3 (Gulf Coast) where the vast majority of NGL fractionation capacity is located.
- Analyst Insight
Y-Grade Carve-Out: One-Third of U.S. NGLs in Inventory Can’t Be Used Until Fractionated
In December 2023, EIA started reporting inventory for purity propane separately from propane entrained in unfractionated y-grade NGL mix.
- Analyst Insight
Propane Locked in Y-Grade Up To 40% and Moving Higher
On December 29, 2023, EIA released a new and long-awaited propane data series titled “Propane, fractionated and ready for sale” in the Petroleum Supply Monthly (PSM).
