The Board of Directors of REB wishes to announce the positive results arising from subsequent testing and evaluations of the Yessen-3 exploration well (Y-3), which was drilled and completed on 19 September 2016. The Y-3 well was drilled in the eastern section of the Yessen Field, located within the Emir-Oil Concession Block in Kazakhstan.

Please refer to the Attachment on the Y-3 results for more information.

This announcement is dated 24 October 2018.