INFORMATICA IMPLEMENTATION AT ULTRAMAR DIAMOND SHAMROCK WINS "BEST PRACTICES IN DATA WAREHOUSING" AWARD

Award represents fourth consecutive win for an Informatica customer

PALO ALTO, Calif., June 19, 2000 - Informatica Corporation (NASDAQ: INFA), a leading provider of integrated analytic solutions for e-business, today announced that Ultramar Diamond Shamrock's (NYSE: UDS) successful implementation of Informatica PowerCenter™ received a 2000 "Best Practices in Data Warehousing" award in the ERP and the Data Warehouse category from The Data Warehousing Institute (TDWI).

More than 100 nominations in 10 areas were judged by a panel of data warehousing experts, including practitioners, consultants, industry analysts, journalists and TDWI management. According to TDWI, UDS's implementation won by clearly demonstrating: (1) a truly innovative solution, (2) practices that can be followed by others, and (3) large and measurable impacts on the business success of its organization.

"The Data Warehousing Institute's recognition of an Informatica customer for the fourth consecutive year highlights Informatica's ability to deliver powerful, innovative analytic solutions to leading companies across all industries," said Gaurav Dhillon, CEO of Informatica. "We're proud our solutions help our customers and partners achieve high levels of business success and industry recognition, and congratulate UDS on its well-deserved win."

As announced last week (see 6/15/00 release from Informatica), UDS's award-winning implementation of Informatica PowerCenter has helped the company access critical enterprise information for analysis resulting in improved profitability, increased sales and its entrance into new markets.

UDS and other "Best Practices" award winners will present their winning nominations at TDWI's Best Practices in Data Warehousing and E-Business Intelligence Conference in Boston, August 20-25.

Ultramar Diamond Shamrock Corp. is one of the largest independent petroleum-refining and marketing companies in North America. The company operates seven refineries throughout the United States and Canada, and has over 5,000 branded retail gasoline/convenience merchandise stores, the majority of which are branded Diamond Shamrock, Ultramar, Beacon or Total.

About The Data Warehousing Institute

The Data Warehousing Institute™ (TDWI), a division of 101communications, is the premier provider of in-depth, high-quality education and training in the data warehousing and business intelligence industry. TDWI is dedicated to educating business and information technology professionals about the strategies, techniques, and tools required to successfully design, build, and maintain data warehousing implementations, and also to the advancement of data warehousing research, knowledge transfer, and the professional development of its Members. TDWI sponsors and promotes a worldwide membership program, annual educational conferences, regional educational seminars, onsite courses, solution provider partnerships, awards programs for the best practices in data warehousing and innovative technologies, resourceful publications, an in-depth research program, and a comprehensive Web site.

About Informatica

Informatica is a leading provider of e-business analytic solutions, including the industry's most powerful enterprise data-integration software platform and analytic applications that help companies evaluate their performance across the entire e-business value chain. More than 50 of the Fortune 100 now rely on Informatica's analytic solutions to obtain the insight they need to stay competitive and grow their businesses. In total, more than 750 leading companies across all industries use Informatica, including Merrill Lynch, 3Com, Autodesk, Chevron, Delta Air Lines, Met Life, Mutual of Omaha, Sprint, MCI WorldCom, Barnesandnoble.com, eBay, Netscape, CNET, Inktomi, Preview Travel, Priceline.com, Deutsche Bank, UBS, Zurich Insurance and Polo Ralph Lauren. For more information, call 800.970.1179, or visit Informatica's Web site at www.informatica.com.

NOTE: Informatica and PowerCenter are trademarks or registered trademarks of Informatica Corporation. All other company and product names may be trademarks of their respective owners.

Media Contacts:

Samantha Moore
Informatica Corporation
(650) 687-6361
smoore@informatica.com

Sara Miles
VisiTech PR
(602) 808-9914
sara@visitechpr.com