September 21, 2015 Source: U.S. Energy Information Administration, U.S. inventories of propane and propylene reached 97.7 million barrels as of September 11, the highest level in the 22 years that EIA has collected weekly propane inventory statistics. In the first six months of 2015, U.S. propane and propylene inventories were 24.3 million barrels higher on […]