 Moodys Investors Service Moodys downgraded SESI, L.L.C.s SESI or Superior Energy Corporate Family Rating CFR to Caa3 from B3, Probability of Default Rating PDR to Caa3-PD from B3-PD, senior unsecured notes to Caa3 from Caa1, and Speculative Grade Liquidity Rating SGL to SGL-3 from SGL-2. SESIs rating outlook was revised to negative. 