State-owned KazMunaiGaz National Co. in western Kazakhstan and Vietnam Oil & Gas Group (PetroVietnam) have agreed to a potential joint exploration that allows the companies to explore and possibly produce oil and gas onshore Mangistau, Bloomberg reported.

The agreement was signed Sept. 11.

PetroVietnam and KazMunauGaz will negotiate commercial, technical, and contract terms, if the location is promising.