X0304 4 2012-01-28 0 0000318996 KEY ENERGY SERVICES INC KEG 0001446813 DOUGLAS DENNIS C 1301 MCKINNEY STREET SUITE 1800 HOUSTON TX 77010 0 1 0 0 SVP, Fluid Managment Svcs Common Stock 2012-01-28 4 F 0 1977 14.74 D 98157 D Payment of tax liability by delivery of stock incident to the vesting on January 28, 2012 of 6,490 shares of restricted stock. Vesting price is calculated based on the average closing price of common stock on January 27, 2012 and the opening price on January 30, 2012, pursuant to the Key Energy Services, Inc. 2009 Equity and Cash Incentive Plan (the "2009 Plan"). Includes 67,058 unvested shares of restricted stock granted under the Key Energy Services, Inc. 2007 Equity and Cash Incentive Plan and the 2009 Plan. By Joshua K. Hancock, Attorney-in-fact for Dennis C. Douglas 2012-01-31