June 20 (Reuters) - U.S. stocks opened lower on Tuesday, slipping from record levels, as oil prices fell 2.5 percent to seven-month lows.
The Dow Jones Industrial Average fell 19.59 points, or 0.09 percent, to 21,509.4. The S&P 500 lost 5.35 points, or 0.21 percent, to 2,448.11. The Nasdaq Composite dropped 8.06 points, or 0.13 percent, to 6,230.95. (Reporting by Tanya Agrawal; Editing by Saumyadeb Chakrabarty)