 Moodys Investors Service Moodys downgraded CSI Compressco LPs Compressco Corporate Family Rating CFR to Caa1 from B3 and its Probability of Default Rating PDR Ca-PD from B3-PD. Moodys also downgraded Compresscos senior secured first lien notes rating to B3 from B1, and its senior unsecured notes rating to Caa3 from Caa2. Upon successful completion of the exchange, an --LD limited default signifier will be appended to Compresscos PDR for a period of three days to acknowledge the default. 