EL Dorado, Arkansas, USA, 30 June 2008 — Deltic Timber Corporation (NYSE-DEL) has scheduled a conference call at 10:00 a.m. Central Time on 24 July to review second quarter results, which will be announced 23 July. Arrangements for the call are being handled by Thomson Event Call. Interested parties may participate in the call by dialing 1-888-713-4218 and referencing participant passcode identification number 48908467. The call also will be broadcast live over the Internet and can be accessed through the Investor Relations section of the Deltic website at www.deltic.com.

All investors, analysts, media, and the general public are invited to participate.

Online replays of the call will be available through the Deltic website, and a recording of the call will be available until 31 July by dialing 1-888-286-8010 and referencing replay passcode identification number 14671769.