Energy Transfer Investor Relations
Phone: 214-981-0795
Email: investorrelations@energytransfer.com

AST may be contacted as follows:

• Mailing Address
  AST
  Attention: Enable Midstream Partners, LP
  6201 15th Avenue
  Brooklyn, NY 11219

• Telephone
  An AST shareholder services representative can be reached at 800-937-5449 or 718-921-8124 between
  the hours of 8 a.m. and 8 p.m. Eastern Time, Monday through Friday. An Interactive Voice Response
  System is available 24 hours a day, seven days a week.

• Website
  Shareholders can access information on AST's website at https://www.astfinancial.com/

• Email
  Shareholders can email inquiries to help@astfinancial.com