U.S. midstream energy company Enterprise Products Partners' credit risk profile has improved due to its increased scale, the receipt of cash flows from recently completed, mostly fee-based projects and our view that fractionation spreads have likely entered a period of secular strength. We are affirming the 'BBB-' corporate credit rating assigned to midstream energy company Enterprise Products Partners L.P. and revising the outlook to positive from stable. We also changed our business risk assessment to 'strong' from 'satisfactory'. The positive outlook reflects Enterprise Products' increasing size and asset diversity and growing asset footprint, while maintaining key credit metrics that are considered somewhat strong for the rating. NEW YORK (Standard&Poor's) April 30, 2010--Standard&Poor's Ratings Services said today