My former company, Shared Systems Technology, did refractory work on the GOHT (called goat) the boilers and fixed the fireproofing on all the structural steel (in addition to fireproofing the field joints)
I was on-site at Whiting several times.
Basically, I liked the way some BP officials put it....we are building a refinery inside an existing refinery.
Amazing project with over 15,000 contractors badged to work on the site.
It was an amazing display of coordination.
I worked on the engineering side of this for the Coker Unit a few years back.
Massive amount of off-site fabrication was partly done due to minimizing union labor costs/schedule.