Chevron leaders told Hess employees to stay focused on safe operations and that they will hear next week if they will continue to have jobs following the oil producer's acquisition, according to two Hess employees who spoke with Reuters.

The Houston-based energy giant Chevron will lay off 575 employees from the Downtown Hess Tower following its $53 billion acquisition of Hess Corp ., according to the company.

Chevron is expected to lay off more than 500 employees in Houston this fall as part of its integration with Hess Corporation, the company confirmed Thursday.