A combination of weak economic conditions, cheap ethane and a series of weak winters has domestic demand trending lower in recent years. U.S. domestic demand fell by 128,000 barrels per day (bpd) between 2022 and 2023. Meanwhile, higher crude and natural gas production and more fractionation capacity increased U.S. propane production by 108,000 bpd.
With domestic supply and demand going in opposite directions, the difference between propane supply and its demand grew 236,000 bpd to 1.515 million bpd. This excess supply is either exported or stored. Even though propane exports grew by 202,000 bpd and imports fell by 3,000 bpd, it was not enough to offset the combination of increasing production and decreasing domestic demand, resulting in inventory growth that put downward pressure on pricing throughout 2023.