Refinery configuration

Complexity: 12.9

Major process units:

Atmospheric distillation - 382 kbpd

Vacuum distillation - 205 kbpd

Coker - 109 kbpd - Three delayed cokers: 

DC-A Carson (40 kbpd, 2 trains) - Foster Wheeler, 4 drum. Produces calcine grade coke.

DC-B Carson (25 kbpd, 1 train) - Foster Wheeler, 2 drum. Produces calcine grade coke.

Wilmington coker (41 kbpd) - Lummus design

FCC - 103 kbpd

Hydrocracker - 98 kbpd - UOP Unicracking

Reformer - 83 kbpd - Semiregen

Naphtha hydrotreater - 79 kbpd

Kerosene hydrotreater - 38 kbpd

Distillate hydrotreater - 24 kbpd

VGO hydrotreater - 147 kbpd

FCC gasoline hydrotreater - 17 kbpd

Alkylation - 29 kbpd

C4 Isomerization - 16 kbpd

C5/C6 Isomerization - 26 kbpd

Hydrogen production - 122 MMscfd

Pet coke - 31 kbpd

Sulfur plant - 749 t/d

Calciner

Land - 930 acres (combined site)

Employees - 1,450 (combined site)

Refinery history

1923 - Wilmington refinery started by California Petroleum

1928 - Wilmington sold to Texas Company

1959 - Texas Company renamed Texaco

1938 - Carson refinery built by Richfield Oil

1966 - Richfield merged with Atlantic to form ARCO

1968 - Wilmington coker added

1969 - 2 cokers added at Carson - DC-A  and DC-B

1998 - Wilmington placed into Equilong JV (Shell and Texaco)

1998 - Coker DC-B revamped.

2002 - Shell acquired full interest in Equilon Texaco merged with Chevron, including Wilmington refinery

2000 - ARCO acquired by BP

2003 - C4 isomerization added

2006 - C5 isomerization added

2007 - Wilmington acquired by Tesoro

2013 - Carson acquired by Tesoro

2015 - CCR reformer shut down

2017 - Renamed Andeavor

2018 - Carson and Wilmington plants merged, FCC shut down (35 kbpd)

2018 - Andeavor merged into Marathon

2018 - C4 isomerization capacity increased