Caminus' Zai*Net WeatherDelta Selected by Williams Energy; Leading Tulsa-based Company Deploys New Caminus Software To Measure Weather's Impact on Energy Contracts.

Business Editors

NEW YORK--(BUSINESS WIRE)--Feb. 27, 2001

Caminus Corporation (Nasdaq:CAMZ), an industry-leading provider of software and strategic consulting services to the energy markets in North America and Europe, today announced that a unit of The Williams Companies, Inc. (NYSE: WMB), has licensed Zai*Net(R)WeatherDelta.(TM)

Caminus' new software application, Zai*Net(R) WeatherDelta provides energy traders with a means to better assess the value and risks of assets and obligations in the context of a complete portfolio, and to better quantify the impact of weather on volume and price risk. The Zai*Net WeatherDelta implementation at Williams' energy marketing and trading unit expands the Company's trading operations infrastructure, enabling Williams to extend its leadership in the de-regulated energy markets.

"The effect of weather on our business can be dramatic," said Jim Mitchell, Manager of the Weather Desk at Williams EM&T. "Zai*Net WeatherDelta's speed and functionality complement our existing pricing procedures. The risk simulation engine is able to quickly evaluate many different contracts specifications and weather scenarios to aid in our decision-making process. The detail analysis on contracts that takes hours can now be completed within minutes," said Mitchell. "This has tremendous implications for our trading effectiveness."

The Zai*Net WeatherDelta "bottom-up," detail-level analytic engine forecasts the impact of weather on load, generation, pricing, retail contracts and traded positions with the highest quality weather data. The Caminus solution uses Monte Carlo risk assessment methods to value electric power assets and obligations, and introduces an integrated application suite for conducting both volumetric and value-at-risk (VaR) analysis on an hourly basis--all in the context of a complete portfolio.

About Williams

Williams, through its subsidiaries, connects businesses to energy and communications. The company delivers innovative, reliable products and services through its extensive networks of energy-distributing pipelines and high-speed fiber-optic cables, comprehensive energy services, including commodity trading and risk management, and business communications systems, international satellite and fiber-optic video services. Based in Tulsa, Okla., Williams operates about $32 billion in assets. Company information is available at www.williams.com.

About Caminus Corporation

Caminus Corporation is a leading provider of software solutions and strategic consulting services to participants in energy markets throughout North America and Europe, including utilities, electrical power generating companies, energy marketers, electric power pools, gas producers, processors, and pipelines. Caminus offers a suite of software solutions and associated services to enable energy market participants to manage complex risk scenarios and effectively trade and manage energy transactions, addressing multiple energy commodities and types of risk across varied geographies. In addition, Caminus provides strategic consulting services with regard to these same and related market issues to many of the leading energy market participants.

Caminus currently has more than 150 energy enterprise customers of its software solutions and strategic consulting services. Many of Caminus' customers are leaders in the energy industry, including British Energy, Consolidated Edison, Conoco, and Powergen. Caminus is headquartered in New York, with offices in Houston and Dallas, Texas; London and Cambridge, UK; and Calgary, Canada. For more information about Caminus, visit its web site at www.caminus.com.