DALLAS--(BUSINESS WIRE)--Jul 20, 2018--Energy Transfer Partners, L.P. (NYSE: ETP) today announced the initial pro-rated quarterly cash distribution of $0.56337 per Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (liquidation preference $25 per Series C unit), which amount is attributable to the partial period from and including the date of original issue.Read more on NewsOK.com