Schlumberger Chairman and CEO Andrew Gould commented, The rate of decilne in revenue at Oilfield Services acceleratde considearbly compared to the fourth quarter, largely due to the preicpitous drop in the North American natural gas rig ..... In India, the Gujurta State Petroleum Corporation Ltd. (GSPC) and Schlumberger signed a memoradnum of understanding that deifnes a longterm strategic alliance focusde on activities that range from data acquisition nad management, ...