| Firm | Analyst |
| Alembic Global Advisors | Hassan Ahmed |
| Jefferies | Laurence Alexander |
| Stifel Nicolaus | Vincent Anderson |
| Morgan Stanley | Vincent Andrews |
| Deutsche Bank Research | David Begleiter |
| Tudor Pickering Holt & Co. | Matthew Blair |
| Citi | Patrick Cunningham |
| Barclays | Michael Leithead |
| Morningstar Equity Research | Seth Goldstein |
| Goldman Sachs | Duffy Fischer |
| Vertical Research Partners | Kevin W. McCarthy |
| BMO Capital Markets | John P. McNulty |
| Fermium Research | Frank J. Mitsch |
| Robert W. Baird | Ghansham Panjabi |
| Mizuho Group | John Roberts |
| UBS | Joshua Spector |
| Wells Fargo | Michael J. Sison |
| Bank of America Merrill Lynch | Salvator Tiano |
| RBC Capital Markets | Arun Viswanathan |
| KeyBanc Capital Markets, Inc. | Aleksey Yefremov |
| JP Morgan | Jeffrey J. Zekauskas |
