The relocation comes ahead of ExxonMobil's sale of 800 Bell as the supermajor prepares to move north to The Woodlands, where it is building a sprawling 385-acre campus with accommodations for some 10,000 employees.

The Petroleum Club, which moved to the Exxon building in 1963, will move to the top floor of 1201 Louisiana across from the Hyatt Regency in downtown Houston where it will lease about 30,000 square feet.