[U.S. and Brent crude oil prices drop nearly $1 in the short term] According to Golden Finance, on September 15, U.S. and Brent crude oil prices dropped nearly $1 in the short term, currently quoted at $97.63 per barrel and $102.11 per barrel, respectively. S&P 500 Index and Nasdaq 100 Index futures turned upward. Earlier, the Oman News Agency reported that Oman and the United States discussed efforts to ease regional tensions.