NEW YORK (Standard&Poor's) Nov. 26, 2003--Standard&Poor's Ratings Services said today that it lowered its corporate credit ratings on Enterprise Products Partners L.P. and Enterprise Products Operating L.P. to 'BBB-' from 'BBB'. The outlook is negative. The Houston, Texas-based master limited partnership had about $1.8 billion of debt as of Sept. 30, 2003. The lower corporate credit rating is based upon the company's much weaker financial performance in 2003 compared with previous years. Weaker financial measures are primarily due to low demand for natural gas liquids (NGLs) in the second and third quarters of 2003. Weak demand for NGLs during the second and most of the third quarter of 2003 and the higher but still below average