The company's share price jumped $8.75 today, to $44.50, on the New York Stock Exchange.

Cooper's share price jumped $2.125, to $14.75, on the New York Stock Exchange.

The company's shares jumped $1.75 today, to $10.50, on the New York Stock Exchange.

It jumped $1.375 a share yesterday on the New York Stock Exchange, closing at $10.50.

Pennzoil's stock jumped $4.125, to $79.375, on the New York Exchange.

The company's shares jumped $3.625 today, to $47, on the New York Stock Exchange.

Its shares jumped $1.375 today, to $44.75, on the New York Stock Exchange.

The shares jumped $4 on the New York Stock Exchange, to $31.

The company's shares jumped $3, or 12.2 percent, on the New York Stock Exchange, and closed at $27.625.

The company's shares jumped $3 each today, to $24.75, on the New York Stock Exchange, giving the company a current value of $261 million.