X0101 EFFECT 33 LIVE 2011-10-14 11:00:00

S-4

0001109189 BASIC ENERGY SERVICES INC 333-176739 0001368910 Basic Energy Services GP, LLC 333-176739-30 0001368909 Basic Energy Services LP, LLC 333-176739-29 0001368911 Basic Energy Services L.P. 333-176739-28 0001368915 Basic Marine Services, Inc. 333-176739-27 0001368916 First Energy Services CO 333-176739-26 0001448590 Hennessey Rental Tools, Inc. 333-176739-25 0001368918 Oilwell Fracturing Services, Inc. 333-176739-24 0001448589 Wildhorse Services, Inc. 333-176739-23 0001368917 LeBus Oil Field Service Co. 333-176739-22 0001368922 Globe Well Service, Inc. 333-176739-21 0001368923 SCH Disposal, L.L.C. 333-176739-20 0001448567 JS Acquisition LLC 333-176739-19 0001448564 JetStar Holdings, Inc. 333-176739-18 0001448566 Acid Services, LLC 333-176739-17 0001448563 JetStar Energy Services, Inc. 333-176739-16 0001448593 Sledge Drilling Corp. 333-176739-15 0001471139 Permian Plaza, LLC 333-176739-14 0001448584 Xterra Fishing & Rental Tools Co. 333-176739-13 0001529076 Admiral Well Service, Inc. 333-176739-12 0001529077 Maverick Coil Tubing Services, LLC 333-176739-11 0001529078 Maverick Solutions, LLC 333-176739-10 0001529079 Maverick Stimulation Company, LLC 333-176739-09 0001529080 Maverick Thru-Tubing Services, LLC 333-176739-08 0001529083 MCM Holdings, LLC 333-176739-07 0001529116 MSM Leasing, LLC 333-176739-06 0001529117 Platinum Pressure Services, Inc. 333-176739-05 0001529118 Taylor Industries, LLC 333-176739-04 0001529086 Maverick Companies, LLC 333-176739-03 0001368912 Basic ESA, Inc. 333-176739-02 0001448592 Chaparral Service, Inc. 333-176739-01