Oilfield services and supply company Smith International Inc., Houston, a subsidiary of Schlumberger Ltd. (NYSE: SLB), has commenced cash tender offers to purchase any and all of one series of its outstanding notes and up to a total spend of $1 billion for three additional series of its outstanding notes.

The tender offer consideration and total consideration applies to its 8.625% notes due 2014, 6% senior notes due 2016 and 9.75% notes due 2019.

Schlumberger is the world's leading supplier of technology, integrated project management and information solutions to customers working in the oil and gas industry worldwide.