ExxonMobil to Assess Hydrocarbon Potential on Falcon Oil and Gas Lease in Mako Trough, Hungary

Exxon Mobil Corporation (NYSE:XOM) announced today that its
affiliate Esso Exploration International Limited signed a production
and development agreement with Falcon Oil and Gas Ltd. and its
subsidiary, TXM Exploration and Production LLC, to begin a phased work
program on a production license in the Mako Trough of southeast
Hungary.

The agreement covers a Contract Area of approximately 184,300
acres representing 75 percent of the license. ExxonMobil will have a
67 percent interest in the Contract Area and is the operator. TXM
retains 33 percent of the Contract Area and 100 percent of the
remaining license outside the Contract Area.

Under the terms of the agreement, ExxonMobil will conduct an
initial work program to test existing wellbores and/or drill
additional wells if needed to evaluate commercial production of
unconventional gas and liquid hydrocarbons. ExxonMobil will invest $75
million in this initial phase, scheduled to begin this year.

After the initial work program, the agreement includes options for
ExxonMobil to elect to follow with appraisal and development programs.

"ExxonMobil is pleased to add the Mako Trough in Hungary to our
global portfolio of resource opportunities," said Elwyn Griffiths

vice president, business development, ExxonMobil Exploration Company.
"Effective pursuit and capture of a wide variety of opportunity types
underpins ExxonMobil´s ability to deliver reliable, affordable energy
to satisfy the world´s long-term and growing energy demand."

CAUTIONARY STATEMENT: Estimates, expectations, and business plans
in this release are forward-looking statements. Actual future results

including resource recoveries and project plans and schedules could
differ materially due to changes in market conditions affecting the
oil and gas industry or long-term oil and gas price levels; the
outcome of exploration programs; political or regulatory developments;
the outcome of commercial negotiations; and other factors discussed
under the heading "Factors Affecting Future Results" in the Investor
Information section of our website (www.exxonmobil.com) and in Item 1A
of our most recent Form 10-K.