-- Ratings on U.S. midstream energy company Enterprise Product Partners reflect a satisfactory business profile and aggressive financial profile. -- We affirmed our 'BBB-' corporate credit rating on the Houston, Texas-based company following our annual review. -- The stable outlook reflects projected improvement in cash flow and debt leverage credit metrics as new investments produce incremental earnings and cash flow and the expectation that the company will fund capital spending with an appropriate mix of debt and equity to protect credit measures. NEW YORK (Standard&Poor's) May 29, 2009--Standard&Poor's Ratings Services said today it affirmed its 'BBB-' ratings on Houston, Texas-based midstream energy master limited partnership (MLP) Enterprise Products Partners L.P. (Enterprise Products) and its operating subsidiary