SUGAR LAND, TX — (Marketwired) — 11/19/14 — Researched by Industrial Info Resources (Sugar Land, Texas) — Chevron Phillips Company (The Woodlands, Texas) and Williams Olefins (Tulsa, Oklahoma) have partially restarted operations at their respective plants, after both plant owners experienced fires that shut down operations for extended periods of time. Although both companies began restart procedures this month, each plant will operate at reduced rates for several more weeks.Within this ar