ExxonMobil's SCANfining Technology Selected for Three Low Sulfur Gasoline Projects for Sunoco, Inc.

FAIRFAX, Va.--(BUSINESS WIRE)--Jan. 20, 2003--ExxonMobil Research and Engineering Company (EMRE) announced today that Sunoco, Inc. has selected EMRE's proprietary SCANfining(a) gasoline sulfur reduction process to be applied at their Philadelphia, Marcus Hook and Toledo refineries.

Twenty-six ExxonMobil (NYSE:XOM) and EMRE licensee refineries have selected this flexible and robust technology to meet their low sulfur mogas needs for a total of 28 SCANfining units. The SCANfining process selectively removes sulfur from catalytically cracked naphtha while minimizing octane loss. The technology uses a proprietary, selective catalyst (RT-225) jointly developed by EMRE and Akzo Nobel Catalysts and minimizes the loss of octane-rich olefins and hydrogen consumption. The Sunoco units will have the capacity to process approximately 190,000 barrels per stream day of catalytic naphtha.

EMRE and Kellogg Brown & Root (KBR) will provide basic engineering for the projects. KBR, the engineering and construction subsidiary of Halliburton, supports the marketing and engineering of EMRE hydroprocessing technologies through the EMRE and KBR Hydroprocessing Technology Alliance.

EMRE is the research and engineering arm of ExxonMobil, a leading global oil, natural gas, and petrochemicals company whose subsidiaries have operations in nearly 200 countries and territories. Additional information regarding ExxonMobil and technologies it licenses can be found at http://www.exxonmobil.com/refiningtechnologies.

Sunoco, Inc., headquartered in Philadelphia, PA, is a leading manufacturer and marketer of petroleum and petrochemical products. For additional information, visit Sunoco's web site at www.Sunocolnc.com.

KBR is an international, technology-based engineering and construction company, which provides a full spectrum of industry-leading services to the hydrocarbon, chemical, energy, forest products industries, and to governments and public infrastructure industries. KBR's parent company - Halliburton - was founded in 1919 and is one of the world's largest providers of energy services. Its web site can be accessed at www.halliburton.com.

Note to Editor: (a)SCANfining is a proprietary process name of Exxon Mobil Corporation or its affiliates.

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