SchlumbergerSema to create hybrid electricity and water real-time wireless data communication system

Norcross, GA, June 11, 2001 — SchlumbergerSema announced today it has executed a 15-year agreement to provide information technology services to JEA of Jacksonville, Florida.

SchlumbergerSema will provide energy consumption data and advanced information services to JEA by connecting one hundred percent of JEA's electric and water consumers, or approximately 540,000 accounts, to the SchlumbergerSema CellNet* wireless fixed network - - the fastest growing network meter reading system in the industry.

The information will be seamlessly accessible via the SchlumbergerSema UtilityDataLink.com(SM) web-based platform. System rollout, which will utilize the majority of JEA's existing meter assets, is set to begin in Q3 2001 and will create the first electricity/water hybrid fixed network of its kind in the United States.

JEA is the largest public power company in Florida and supplies electric, water and sewer services to customers in Northeast Florida.

As part of the agreement, SchlumbergerSema will provide JEA with a customized program of daily, monthly and on-demand energy consumption data and advanced information analysis services for billing, customer information management, and energy efficiency purposes. Historical and real-time consumption data will be accessible to JEA customer service, marketing, and other company representatives via the SchlumbergerSema UtilityDataLink.com.

UtilityDataLink.com is a secure Web-based platform that provides JEA with access to real-time information solutions needed to provide the highest levels of customer service and reduce operational costs. With the SchlumbergerSema technologies in place, JEA will be prepared to provide a host of value-added services including real-time pricing, revenue integrity services, usage analysis, facility benchmarking, customer care, and remote disconnection.

Walt Bussells, JEA CEO and managing director stated, "Our agreement with SchlumbergerSema will make JEA the first integrated electric, water and wastewater utility in the nation to create a utility-wide wireless fixed network with enormous potential for enhanced customer services. This brings us an important step closer to reaching our goal of being the best service provider in the nation."

About SchlumbergerSema SchlumbergerSema is a information technology services company providing IT consulting, systems integration, managed services, products and IP network security solutions serving the oil and gas, telecommunications, utility, finance, transport and public sector markets. With more than 30,000 employees in 130 countries, SchlumbergerSema is one of two business segments of Schlumberger Limited, a global technology services company. Schlumberger Limited acquired Sema plc in April 2001. In 2000, Schlumberger revenue was $9.6 billion and Sema plc revenue was $2.4 billion. Additional information can be found at www.slb.com.

About JEA JEA provides electricity, water and wastewater services to more than 540,000 accounts in North Florida. JEA is the 8th largest municipal electric utility in the nation. Additional information is available at http://ww.jea.com.