Interactive Network Technologies, Inc. and IndigoPool.com Collaborate
to Bring Increased Functionality to Interactive Software
for Evaluation of A&D Assets

Houston, TX (May 3, 2001): IndigoPool.com (www.indigopool.com), a Schlumberger company, today announced the addition of best-in-class seismic and log data visualization technology to its robust set of Internet tools. IndigoPool teamed with Interactive Network Technologies (INT) to build additional functionality and flexibility into Log Viewer** and Seismic Viewer** - INT's interactive data viewing software packages. This new offering will allow registered site users to find and dynamically view actual data (not static images available with many other packages) improving the quality of their online evaluation of acquisition & divestiture (A&D) properties.

The viewing tools bring modern geoscience techniques to the user's desktop without the need for complex application installation or maintenance. With Log Viewer, users have support for multiple wells display; cross plot capabilities; and basic evaluation functionalities such as area curve filling, lithology presentation, annotation and well marker interactors, and zooming. They can also select from a variety of predefined templates covering simple and composite displays in single and multi-well modes. Seismic Viewer provides full support of SegY format, wiggle and interpolated color density display, user-defined color maps, histograms, and zooming capabilities. With interactive data viewing, users have more flexibility to analyze data, creating greater value for data room/data book vendors.

"The Schlumberger organization has a long-standing, close working relationship with INT and has used their technology for many years," said IndigoPool president Dan Magyar, "so we were pleased to have the opportunity to collaborate on the enhancement of their data and seismic visualization technology. With access to these tools on their desktops, IndigoPool customers will be able to perform more thorough evaluations, enabling them to make better decisions. We're very pleased to be first to market with the enhanced versions of these tools and anticipate that industry will embrace them when they become commercially available."

"It's a natural fit for us to collaborate with IndigoPool.com," according to INT president Olivier Lhemann. "They bring industry expertise, proven e-commerce platform, and a strong position in the marketplace. Working together, we made our seismic and log viewer tools even more powerful. In addition, the IndigoPool.com e-marketplace provides a new channel for us to rapidly get these tools to a global audience. We plan to continue our work with IndigoPool to develop more advanced features and functionalities."

About IndigoPool.com:
IndigoPool.com, a Schlumberger company, brings a proven enterprise-class e-commerce platform and associated business solutions to the global oil & gas industry and related financial institutions. Named by Forbes.com magazine as one of the leading B2B Web sites for the energy industry, the IndigoPool.com e-marketplace provides a secure, neutral, collaborative workspace for oil & gas property acquisition and divestiture and company portfolio administration. IndigoPool.com also markets relevant data, industry information, and online services to registered site users. Schlumberger [NYSE: SLB] is a global leader in technical services spanning the oil and gas, utility, semiconductor, smart cards, network and Internet solutions industries. Schlumberger revenue was $9.6 billion in 2000. Schlumberger is on the Internet at http://www.slb.com.

About INT:
Interactive Network Technologies, Inc. (INT) is a software and consulting company based in Houston, Texas, specializing in the development of graphics toolkits and graphics intensive applications. INT's data visualization software products enable programmers and vendors working in Java, C++, and C environments to enhance the performance and functionality of their graphics applications while reducing development times and maintenance costs. For more information about INT, visit www.int.com or e-mail intinfo@int.com