X0306 4 2012-09-12 false 0000076321 PARKER DRILLING CO /DE/ PKD 0001472030 Schlom Philip A 5 GREENWAY PLAZA, SUITE 100 HOUSTON TX 77046 false true false false PAO/Controller Common Stock 47769 D Restricted Stock Units 0 2012-09-10 2012-09-10 Common Stock 79394 99003 D This Form 4 is being filed to amend the September 11, 2012 Form 4 filling. The September 11, 2012 Form 4 reported a vesting of 13,333 Restricted Stock Units ("RSUs") shown on Table II as a disposition, and shown on Table I as an acquisition. This reporting was in error as the securities involved were actually restricted shares of common stock granted on September 8, 2009, and the event occurring on September 10, 2012 was only a lapse of transfer restrictions on such shares. The restricted shares of common stock granted on September 8, 2009 were reported on Mr. Schlom's Form 3 filed on September 11, 2009. Philip A. Schlom 2012-09-13