International oil prices fell on the 13th.

As of the market close on that day, the price of light crude oil futures for September delivery on the New York Mercantile Exchange fell by $2.02, settling at $81.25 per barrel, a decrease of 2.43%; the price of Brent crude oil futures for October delivery dropped by $1.91, closing at $87.07 per barrel, a decline of 2.15%.