X0202 4 2006-02-16 0 0001097313 GRANT PRIDECO INC GRP 0001286549 BLACK DAVID 400 N. SAM HOUSTON PKWY EAST SUITE 900 HOUSTON TX 77060 0 1 0 0 Pres, Drilling Prod & Services Performance Restricted Stock 2006-02-16 4 A 0 22084 A 22084 D Restricted Stock 2006-02-16 4 A 0 45000 A 45000 D Shares of restricted stock are eligible for full or partial vesting on the third anniversary based upon the Company's shareholder return versus a peer group of oilfield service companies determined by the Compensation Committee of the Company. Stock also subject to full or partial vesting in the event of a change of control or death or disability.Restricted shares granted pursuant to the Company's 2000 Employee Stock Purchase and Restricted Stock Plan. Restricted stock vests on the third anniversary of the date of grant assuming the executive remains in the employment of the Company. Stock also subject to accelerated vesting in the event of a change of control or death or disability. Philip A. Choyce, Attorney-in-Fact 2006-02-20