ONEOK's Oklahoma Natural Gas Company Streamlines Operations and Improves Customer Service with Indus Customer Suite.

Tier 1 Utility's Largest Division Supporting 800,000 Customers on New CIS 

ATLANTA -- Indus International Inc. (NASDAQ: IINT), a leading Service Delivery Management (SDM[TM]) solution provider, today announced the successful implementation of Indus Customer Suite at Oklahoma Natural Gas Company (ONG), a division of Fortune 500 diversified energy company ONEOK (NYSE:OKE). The ONG go-live completes the full-scale transition of ONEOK from legacy customer information system (CIS) applications such as Customer/1 to a highly accessible and flexible Web-based application for customer service and billing.

As one of the top five largest natural gas providers in the nation, ONEOK now serves more than 2 million customers using Indus Customer Suite. The first implementation of the solution began helping ONEOK serve 550,000 Texas Gas Service customers in May 2004 and marked the initial steps of ONEOK's initiative to achieve world-class performance and enhanced customer service. In September 2004, ONEOK successfully began serving an additional 650,000 gas customers on the new Customer Suite system within its Kansas Gas Services division. Today's announcement marks the third and final milestone in the transition, bringing more than 800,000 additional customers onto the system.

With the success of three substantial installations, ONEOK can now leverage the full capabilities of Indus Customer Suite across its multi-state territories. Indus Customer Suite is the most comprehensive customer management system available today offering unparalleled flexibility and workflow capabilities. A major component of Indus' Service Delivery Management strategy, Customer Suite can manage all of a utility's customer-facing processes, from simple inquiries, to marketing initiatives, to complex billing. The solution includes customer care features, which help utilities capture, track and analyze customer information and behavior for continual service optimization. And, it provides revenue cycle management features for sophisticated financial operation functions, including complex billing, variable pricing options and advanced rate management.

Indus President and CEO Greg Dukat said, "This final go-live at ONG marks the ultimate milestone in a highly successful enterprisewide implementation at ONEOK, delivered in close cooperation with ONEOK's top-notch implementation team. Furthermore, it marks our unparalleled success in delivering solutions which help progressive, Tier 1 utilities like ONEOK cut costs through streamlined operations while enhancing customer service."

About Oklahoma Natural Gas Company

Oklahoma Natural Gas Company is a division of Tulsa-based ONEOK Inc. (NYSE: OKE), a diversified energy company involved in natural gas distribution, processing, gathering, storage and transportation primarily in the mid-continent areas of the United States. The company's energy services operations provide service to customers in most states. ONEOK owns one of the nation's premier natural gas liquids (NGL) systems, connecting much of the NGL supply in the mid-continent with two key market centers. ONG provides natural gas service to more than 800,000 customers in the state of Oklahoma.

About Indus International

Indus is a leading Service Delivery Management (SDM) solution provider, helping clients in a broad array of industries optimize the management of their customers, workforce, spare parts inventory, tools and documentation in order to maximize performance and customer satisfaction while achieving significant cost savings. Indus customer, asset and workforce management software products, professional services and hosted service offerings improve our clients' profitability by reducing costs, increasing capacity and competitiveness, improving service to their customers, facilitating billing for services and ensuring regulatory compliance. Indus solutions are used by several hundred thousand end users in more than 40 countries, representing diverse industries -- including manufacturing, utilities, telecommunications, government, education, transportation, facilities and property management, high tech, consumer packaged goods and more. For more information, visit our Website at http://www.indus.com.

Indus is a registered trademark of Indus International, Inc. Other company and product names may be trademarks of the respective companies with which they are associated.