International oil prices closed mixed on the 21st.

As of the close that day, the price of light crude oil futures for December delivery on the New York Mercantile Exchange fell 67 cents to settle at $97.15 per barrel, a decrease of 0.68%; the price of London Brent crude oil futures for December delivery rose 3 cents to settle at $108.82 per barrel, an increase of 0.03%.