U.S. stocks fell slightly to close in the red on Tuesday. Trading volume was once again light as investors kept a close eye on geopolitical tensions. Energy Stocks like Chevron (CVX) and Exxon (XOM) weighed on the blue chip index. The Energy Information Agency (EIA) said gasoline prices will continue to fall. Crude Oil for September delivery fell 71 cents a barrel in Tuesday's trading. Another government report today showed job openings rose in June. The labor department said openings climbed to the highest level in more than 13 years. Intercept Pharmaceuticals (ICPT) surged after the company released positive results on a drug to treat liver disease. Some big names set to report earnings Wednesday including Macy's (M), Cisco (CSCO) and SeaWorld (SEAS). TheStreet's Susannah Lee reports from New York