EXHIBIT 15 May 13, 2003 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 10549 Re: Parker Drilling Company Registration on Form S-8 and Form S-3 We are aware that our report dated April 28, 2003, on our review of the interim financial information of Parker Drilling Company for the three month periods ended March, 2003 and 2002 and included in this Form 10-Q for the quarter ended March 31, 2003 is incorporated by reference in the Company's registration statements on Form S-8 (File No. 33-57345, 333-59132, 333-70444, 333-41369, 333-84069 and 333-99187) and Form S-3 (File No. 333-36498). /s/ PricewaterhouseCoopers LLP - ------------------------------ PricewaterhouseCoopers LLP 36