changes ExxonMobil has made to prevent another accident like Valdez

In the aftermath of the Exxon Valdez accident, ExxonMobil redoubled its long-time commitment to safeguard the environment, employees and operating communities worldwide. To improve oil-spill prevention, ExxonMobil has, for example:

• Modified tanker routes
  
• Instituted drug and alcohol testing programs for safety sensitive positions
  
• Restricted safety-sensitive positions to employees with no history of substance abuse
  
• Implemented more extensive periodic assessment of ExxonMobil vessels and facilities
  
• Strengthened training programs for vessel captains and pilots and
  
• Applied new technology to improve vessel navigation and ensure the integrity of oil containment systems
  

As a result of these and other improvements, the number and volume of oil spills from our marine vessels worldwide have been significantly reduced. For the past eight years, we have spilled less than three gallons of oil per million gallons shipped. Our most recent three-year performance has been even better, with less than five tablespoons of oil spilled per million gallons shipped by ExxonMobil's marine vessels.

In the event a spill occurs, we also have improved our response capability. For example

• ExxonMobil is a founding member of every major oil spill response center worldwide
  
• We created the world's most effective, environmentally safe, award-winning oil spill dispersant, Corexit 9500
  
• There are over 1,000 ExxonMobil employees involved in oil spill response teams worldwide
  
• We hold frequent, extensive oil spill drills at various ExxonMobil locations around the world and
  
• We have developed and applied new spill-detecting technology.