Westlake Chemical Partners LP

WPT, L.L.C.

Invesco Advisers, Inc.

Energy Income Partners LLC

TTWF, L.P.

ClearBridge Investments, LLC

Mirae Asset Global Investments (USA) LLC

UBS Financial Services, Inc.

BofA Global Research (US)

Citi Investment Research (US)

Goldman Sachs & Company, Inc.