Throughput and deficiency agreements (separate, not joint) with the company's five owners, all of which are large, solidly investment-grade oil companies; Relatively stable and predictable cash flows and minimal capital expenditures; Added liquidity is provided as the owners could reduce or suspend distributions, which at times have exceeded earnings; and Dominant market share as sole offshore oil port provider for deep-draft oil tankers in the Gulf of Mexico. Highly leveraged; and Exposure to declining production oil fields and imports from foreign cargoes. The ratings on petroleum pipeline LOOP LLC are supported by throughput and deficiency agreements (separate, not joint) with its five owners, all of which are large, solidly investment-grade oil companies. LOOP owns and operates a deepwater oil port