ExxonMobil's FLEXSORB Technology Selected for Steeprock, Canada Application to Meet 10 vppm H2S Treated Gas Specification

FAIRFAX, Va.-Feb. 14, 2006-ExxonMobil Research and Engineering Company (EMRE) announced today that it has signed an agreement to license a FLEXSORB® SE Plus Unit for acid gas enrichment using EMRE's unique FLEXSORB® SE hindered amine technology in order to meet 10 vppm H2S at the absorber outlet for application at a gas plant facility in Steeprock, Canada.

The FLEXSORB SE Plus technology is well suited for selective removal of H2S thereby enriching the feed to a Claus Plant Sulfur Recovery Unit (SRU). It can consistently and reliably achieve less than 10 vppm H2S in the treated gas even at the low pressure ahead of the SRU.

FLEXSORB SE and FLEXSORB SE Plus amine scrubbing technologies are proven, cost-effective ways to selectively remove H2S from process gas streams, even in the presence of CO2. More efficient than conventional amine gas treating, this technology easily fits into refining, natural gas processing, and petrochemicals operations using conventional gas treating equipment. There are over 60 applications of EMRE's FLEXSORB technology around the world with over 20 years of commercial operating experience.

EMRE is the research and engineering arm of Exxon Mobil Corporation (NYSE:XOM), 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 www.exxonmobil.com/refiningtechnologies.

Prem Nair,

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