The U.S. average diesel fuel price decreased 4 cents from last week to $3.12 per gallon on December 17, 2018, 22 cents per gallon higher than a year ago. Rocky Mountain prices fell more than 6 cents to $3.18 per gallon, West Coast and Midwest prices each decreased nearly 5 cents to $3.60 per gallon and $3.02 per gallon, respectively, Gulf Coast prices decreased more than 3 cents to $2.90 per gallon, and East Coast prices fell nearly 3 cents to $3.17 per gallon.
The U.S. average regular gasoline retail price decreased more than 5 cents from last week to $2.37 per gallon on December 17, 2018, down more than 8 cents per gallon from the same time last year. Rocky Mountain prices fell 8 cents to $2.58 per gallon, Midwest prices decreased nearly 8 cents to $2.14 per gallon, West Coast prices fell nearly 6 cents to $3.11 per gallon, Gulf Coast prices fell more than 4 cents to $2.03 per gallon, and East Coast prices decreased more than 3 cents to $2.35 per gallon.
U.S. propane/propylene stocks decreased by 3.3 million barrels last week to 73.2 million barrels as of December 14, 2018, 5.6 million barrels (7.1%) lower than the five-year (2013–2017) average inventory level for this same time of year. Midwest inventories decreased by 2.5 million barrels, Gulf Coast and East Coast inventories each decreased by 0.4 million barrels, and Rocky Mountain/West Coast inventories decreased slightly, remaining virtually unchanged. Propylene non-fuel-use inventories represented 6.4% of total propane/propylene inventories.
Residential propane prices averaged $2.44 per gallon, less than 1 cent per gallon higher than last week but 4 cents per gallon lower than a year ago. Wholesale propane prices averaged nearly $0.86 per gallon, almost 6 cents per gallon less than last week and nearly 18 cents per gallon lower than a year ago.
As of December 17, 2018, residential heating oil prices averaged almost $3.19 per gallon, down 1 cent per gallon from last week’s price but nearly 30 cents per gallon higher than last year’s price at this time. The average wholesale heating oil price for this week averaged $1.96 per gallon, over 3 cents per gallon less than last week and nearly 4 cents per gallon lower than a year ago.