![Dewey Johnson Dewey Johnson photo](/sites/default/files/styles/event_speaker/public/4906AB0000001A.filename.Dewey_Johnson.png?itok=VTFpWW8C)
Dewey Johnson
Senior Vice President & Global Lead
Chemical Market Analytics by OPIS, A Dow Jones Company
![Carlo Barrasa Carlo Barrasa photo](/sites/default/files/styles/event_speaker/public/49069F0000001A.filename.Carlo_Barrasa.png?itok=9uiADZdX)
Carlo Barrasa
Vice President, Global Energy & Feedstock Markets
Chemical Market Analytics by OPIS, A Dow Jones Company