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EAGLE ROCK EXPLORATION LIMITED
Name changed to Wild Stream Exploration Inc in November 2009.



RUST ENVIRONMENT & INFRASTRUCTURE
Acquired by Earth Tech Inc in 1998



RUSTRAK RANGER
See Thermo Electron Process Instruments Division



RYE SUPPLY CO INC
Acquired by National Oilwell Varco in 2001.



SARGENT CONTROLS
Acquired by Dover Corporation in 2000.



SAFE SEAL COMPANY
See Innovative Valve Technologies Inc (INVATEC)



SAM DICK INDUSTRIES
Merged with Algas Industries in 1999 to form Algas SDI International LLC



SCANDPOWER PETROLEUM TECHNOLOGY
Acquired by Altor in June 2006 and name changed to SPT Group.



SSA ALLIANCE
Alliance formed between Schilling Robotics, based in U.S. and Sub-Atlantic Ltd, based in UK



SCHLUMBERGERSEMA INC
Acquired by Atos Origin in September 2003 for $1.3 billion Euros in cash and shares.



SEAM-MAC TUBE LLC
Acquired by Drill Tube International in 2000.



SENIOR ENGINEERING COMPANY
Name changed to Senior Flexonics Inc after Flexonics companies were purchased by Senior Engineering in 1992.



SERVCO
see Smith International, Inc



SIERRA GEOPHYSICS INC
Acquired by Halliburton in May 1989.



SKYTOP BREWSTER COMPANY
Acquired by National Oilwell Varco in 1999.



SLINGSBY ENGINEERING
See Perry Slingsby Systems Inc



SMITH BITS MINING AND INDUSTRIAL DRILLING TOOLS
Smith Bits Mining and Industrial Tools combined with Sandvik's Rotary Division in October 2001 to form Sandvik Smith Inc., a joint venture.



FMC SMITH METER INC
Name changed to FMC Measurement Solutions in 2000.



SMITH TOOL
see Smith Bits



SCOTT INSTRUMENTS
Integrated into Scott Health & Safety in October 2005



SOONER PIPE & SUPPLY CORP
see Sooner Pipe LLC.



SOONER TESTING INC
Acquired by RPC Inc in 2001



SPACE MASTER BUILDINGS
see Space Master International



SPECTRA PRECISION INC
Acquired by Trimble Navigation Ltd in July 2000



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