(Adds company statement, details on the unit restarts)
    HOUSTON, March 1 (Reuters) - Lyondell Basell Industries
 LYB.N  began restarting the large crude distillation unit (CDU)
and the gasoline-producing fluidic catalytic cracker (FCC) at
its 263,776-barrel-per-day (bpd) Houston refinery on Monday,
said three sources familiar with plant operations.
    Lyondell plans to complete the restart of the 147,000-bpd
Unit 537 CDU and 90,000-bpd FCC this week, the sources said. The
company is also restarting production on the coker 
    Lyondell spokeswoman Chevalier Gray declined to comment. 
    Unit 537 was at operating temperature and circulating feed
on Monday and could resume production by midweek, the sources
said. 
    The FCC is being warmed up and could return to production by
early next week, according to the sources. 
    The refinery is also restarting a coker, the sources said.

 (Reporting by Erwin Seba
Editing by Chizu Nomiyama and Jonathan Oatis)
 ((erwin.seba@thomsonreuters.com; +1 832 746 4269; Reuters
Messaging: erwin.seba.thomsonreuters.com@reuters.net))