X0202 4 2006-11-29 0000032017 ELKCORP ELK 0001156866 MCMAHAN MICHAEL L 14911 QUORUM DRIVE SUITE 600 DALLAS TX 75254-1491 1 0 0 0 Incentive Stock Option (Right to Buy) 25.12 2006-11-29 4 A 0 2965 25.12 A 2006-11-29 2016-10-31 Common Stock 2965 2965 D Granted as part of independent directors' annual compensation under the 2004 Amended and Restated ElkCorp Equity Incentive Compensation Plan and approved by the Board of Directors at its annual organizational meeting on October 31, 2006, subject to a contingency which lapsed on November 29, 2006. Michael L. McMahan 2006-12-01