(CNBC) U.S. stocks closed mixed on Black Friday amid a slide in oil prices following OPEC’s announcement that it would not cut its output.

The Dow Jones Industrial Average eked out a record close by 0.49 points, ending the month without having lost ground in back-to-back sessions since Oct. 15-16.

Friday was the final trading day of November, and the Dow and S&P 500 posted a second straight month of gains and the 8th in 11 months this year. Both indexes barely held onto their 6th straight week of gains, their longest winning streak in a year.

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