Yellowstone River Cleanup and Recovery Update

ExxonMobil Pipeline Company provided the following update as Unified
Command cleanup operations continued Thursday following a release of oil
into the Yellowstone River on July 1.

CLEANUP STATUS

Under the direction of the Unified Command, more than 500 people are now
involved in the response and cleanup effort including ExxonMobil′s North
America Regional Response Team, the Clean Harbors and ER oil spill
response organizations and additional contractors. More than 300 people
are along the river banks today to clean up oil.

More than 75,000 feet of absorbent boom is on site, with more than 8,000
feet deployed to clean up oil adjacent to the river. More than 400,000
absorbent pads are on site with more than 150,000 deployed.

Two isolated spots of oil have been located beyond 20 miles of the
release point; however, we have not discovered any oil between 20 and 40
miles from the site of the release. One spot was located approximately
40 miles from the site of the release and the second spot was found
approximately 80 miles away.

Two aerial flights will be conducted today to continue to monitor the
area and direct cleanup operations. Today′s flights are scheduled to
survey an area up to 200 miles from the site of the oil release and as
further information comes in, we can dispatch additional flights as
necessary.

Eight boats are staged at Coulson Park for deployment for monitoring on
the river when conditions permit and 12 additional vessels have been
ordered.

Ongoing air quality monitoring has confirmed there is no danger to
public health. For additional information, please go to www.riverstonehealth.org.
Municipal water systems are being notified to monitor water quality by
the EPA; no reports of impacts have been received to date. The EPA is
also monitoring water quality.

COMMUNITY OUTREACH TO LANDOWNERS

Direct contact with landowners who have been affected by the spill are
underway. We are working with landowners to address their individual
concerns. Those who may have been affected are encouraged to use the
claims hotline (1-888-382-0043) for more information.

WILDLIFE ASSESSMENT AND RECOVERY

We have been working with International Bird Rescue and the Montana Fish
and Wildlife and Parks Departments to survey the area for impacts to
wildlife. Members of the team have been deployed to inspect the property
of landowners who have called the claims and wildlife hotlines.

Yesterday, International Bird Rescue collected a garter snake on a
landowner′s property. The snake was cleaned on site and released.

HOTLINE INFORMATION

Claims hotline: Individuals in the
community who might have been impacted by this event are encouraged to
contact the claims hotline number (1-888-382-0043).

Wildlife hotline: Anyone who comes
across wildlife that have been impacted by the spill are asked to use
the wildlife hotline number (1-800-259-0596).

Downstream Media Relations

703-846-4467