WALL DOUGLAS JAMES 4

4 · PATTERSON UTI ENERGY INC · Filed Apr 28, 2011

Form 4

Period: 2011-04-26

Chief Executive Officer

Transactions

Tax Payment
Common Stock, $.01 par value per share
2011-04-28$30.90/sh−745$23,021→ 369,434 total
Award
Stock Option (Right to Buy)
2011-04-26+103,500→ 103,500 total
Exercise: $31.20Exp: 2021-04-25→ Common Stock, $.01 par value per share (103,500 underlying)
Award
Common Stock, $.01 par value per share
2011-04-26+71,000→ 379,292 total
Tax Payment
Common Stock, $.01 par value per share
2011-04-27$31.20/sh−9,113$284,326→ 370,179 total

Footnotes (4)

[F1]One-third of the shares vest on April 26, 2012 and the remainder vests in equal monthly installments over the twenty-four months following April 26, 2012.
[F2]Mr. Wall surrendered 9,113 shares of stock to the issuer to satisfy payroll tax withholding obligations that arose from the vesting of 25,000 shares of restricted stock on April 27, 2011.
[F3]Mr. Wall surrendered 745 shares of stock to the issuer to satisfy payroll tax withholding obligations that arose from the vesting of 2,042 shares of restricted stock on April 28, 2011.
[F4]One-third of the options vest on April 26, 2012 and the remainder vests in equal monthly installments over the twenty-four months following April 26, 2012.

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