New York (Platts)--9Mar2010/301 pm EST/2001 GMT
Beginning March 15, 2010, Platts' regular unleaded, mid-grade unleaded and
premium unleaded gasoline assessments for the Chicago market will reflect 9
RVP. 

The change is part of a seasonal shift in vapor pressure specifications. 

Also on March 15, the beginning of the market's third March pipeline shipping
cycle, Platts will launch supplemental gasoline assessments for Chicago
unleaded 87, unleaded 89 and unleaded 93, reflecting 11.5 RVP.

These assessments will appear in addition to primary assessments of 9 RVP
unleaded 87, 89 and 93. 

For questions or comments, please contact Jennifer Brumback at 713-658-3237,
jennifer_brumback@platts.com, or David Ruisard at 713-658-3224,
david_ruisard@platts.com.