A CSX. Corp locomotive engine.

Check out which companies are making headlines after the bell Tuesday:

Intel - The chip maker reported first-quarter earnings per share of 38 cents on revenue of $12.76 billion, versus estimates of EPS of 37 cents on $12.81 billion in sales. Intel projected second-quarter revenue of $13 billion, plus or minus $500 million. Analysts expected revenue of $12.96 billion. Its shares gained in after-hours trade.