Press Release

DALLAS--(BUSINESS WIRE)--Dec. 20, 2001-- Halliburton Company and its wholly owned business unit, Landmark Graphics, today announced that Landmark's application services and data services provider, GrandBasin, has been awarded a three-year E&P data management contract by Shell Exploration and Production Company (Shell). The scope of the work includes management of more than two terabytes of Shell seismic data using PetroBank(TM), the most advanced data management system in the E&P industry, and online access to using GrandBasin's Web-based Surf and Connect(TM) application. Shell chose to outsource their E&P data management to GrandBasin because the PetroBank technology, acquired through Landmark's purchase from PGS Data Management, is closely aligned to their vision of leveraging technology and services to improve their data management processes.

``This data management contract is an excellent example of the great partnerships that result from global organizations like Halliburton and Shell Exploration and Production working to leverage advanced technology like online, Web-based data access,'' said Dave Lesar, chairman, president and CEO of Halliburton. ``The decision by Shell to outsource their data management to GrandBasin is a clear indication of the confidence that they have in the direction that we are taking the PetroBank technology and the data management direction that Landmark is taking. This contract is one of a series of successes that we have had recently in E&P data management around the world. We are excited by the rapid progress that we are making in this area of our business.''

The contract consists of three basic elements: (1) Shell's outsourcing of their seismic data management to GrandBasin using PetroBank; (2) Leveraging the integration capabilities of GrandBasin's Web-based Surf and Connect application to provide online data access to Shell users; (3) Incorporating new developments in PetroBank corporate data management technology from GrandBasin and Landmark into the partnership.

``Shell, a key customer of ours in data management worldwide, recognized the strategic importance of the PetroBank vision many years ago by actively participating in its architecture and development,'' said John Gibson, Landmark's president and CEO. ``They chose to outsource their E&P data management to us today because we will provide them with improved access to the right data at the right time that will enable them to focus on their core business.''

GrandBasin's data management strategy will enable Shell to couple their data flows with their work processes. They will also be able to aggregate data and manage their project data dynamically.

GrandBasin is the leading provider of data hosting and management services and vendor-neutral application hosting for the upstream oil and gas industry. Service offerings include 24x365 Web-based access to hosting services and the PetroBank family of comprehensive data management technologies and integration services. GrandBasin delivers anywhere, anytime access to data and the latest analytical knowledge management tools, enabling E&P companies to focus on their core, business-critical activities. Additional GrandBasin information is available at www.grandbasin.com.

Landmark is the leading supplier of software and services for the upstream oil and gas industry. The company's software solutions span exploration, production, drilling, business decision analysis and data management. Landmark offers a broad range of consulting services that enables customers to optimize their technical, business and decision processes. Visit the Landmark Web site at www.lgc.com for more information.

Halliburton Company, founded in 1919, is the world's largest provider of products and services to the petroleum and energy industries. The company serves its customers with a broad range of products and services through its Energy Services Group and Engineering and Construction Group business segments. The company's World Wide Web site can be accessed at www.halliburton.com.

Landmark, the Landmark logo, PetroBank and Surf and Connect are trademarks or registered trademarks of Landmark Graphics Corp.

     Landmark Graphics Corp.
     Rod Hotz, 281/368-5766
     rhotz@lgc.com
     or
     Halliburton Company
     Wendy Hall, 713/676-5227
     wendy.hall@halliburton.com