EL Dorado, Arkansas, USA, 13 December 2007 -- Deltic Timber Corporation (NYSE-DEL) today announced that its board of directors has authorized management to expand the company’s Common Stock repurchase program by USD 25 million. This authorization comes as Deltic Timber has now repurchased stock in an amount representing almost 90% of the company’s current USD 30 million program initiated in January 1999. Repurchases may be made from time to time in the open market at prevailing market prices or in private transactions in accordance with all applicable securities laws and regulations.

Deltic Timber Corporation is a natural resources company focused on the efficient and environmentally responsible management of its land holdings. The company owns more than 438,000 acres of timberland, operates two sawmills, and is engaged in real estate development in Little Rock and Hot Springs, Arkansas.