Indexes on the U.S .stock market closed at record high levels on Monday after energy companies saw gains in their shares.
The Dow Jones added nine points to end trading at 23,548 points, while the S&P 500 rose three points to 2,591 points.
The Nasdaq increased 22 points to finish the first trading day of the week at 6,786 points.
At the final bell, tech giant Apple's stock price was up 1 percent trading at $174.25 a share. This gave the company a market capitalization of $900 billion. After Friday, this is the second time Apple saw its market value reaching this level.
American energy companies saw gains in their stock price after crude oil prices have continued their increase.
Oilfield services firm Baker Hughes shares gained 8.8 percent, while oil and gas exploration and production company Chesapeake Energy's stock price increased 11.9 percent.
Global benchmark Brent crude climbed as high as $64.44 per barrel on Monday, while American benchmark West Texas Intermediate rose to as much as $57.79 a barrel.
By Ovunc Kutlu in New York
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