An FDIC spokesman tells GlobeSt.com that the extra floors are being filled in stages, with full occupancy to be completed by Nov. 1. The FDIC, which occupies floors 32 through 38, is adding 17 through 20 in the 49-story Energy Plaza at 1601 Bryan St. "The space will house various divisions of the Dallas regional office as the result of increased workload," says the spokesman for the nation's largest federal banking regulatory agency.

EF Holdings' divisions occupy the rest of the 1.06-million-sf high rise in a master lease that expires July 1, 2022 with the Boston-based owner, US Bank, a successor in interest to State Street Bank and Trust Co. of Connecticut.

EF Holdings has been shuffling its teams since its predecessor's sale in October 2007. GVA Cawley started the sublease assignment about 18 months ago, with 250,000 sf to backfill. But as the internal shuffle plays out, more of the class A-minus space has hit the sublease market.