(AP) — DuPont Co. on Tuesday reported second-quarter earnings of $862 million.

On a per-share basis, the Wilmington, Delaware-based company said it had net income of 99 cents. Earnings, adjusted for one-time gains and costs, came to $1.38 per share.

The results surpassed Wall Street expectations. The average estimate of seven analysts surveyed by Zacks Investment Research was for earnings of $1.29 per share.

The chemical company posted revenue of $7.42 billion in the period, also topping Street forecasts. Four analysts surveyed by Zacks expected $7.26 billion.

DuPont shares have climbed 15 percent since the beginning of the year, while the Standard & Poor's 500 index has climbed 10 percent.