Bangladesh Oil Gas and Mineral Corporation Job Circular 2018. Petrobangla Job Circular 2018. Bangladesh Minerals, Oil and Gas Corporation Exam Date has been published. This is the exam notice of Assistant Manager. Petrobangla Exam Date 2018 of Assistant Manager post is 30 March, 2018. The exam test will be taken under IBA. The Applicants are asked to collect admit online from http://bogmc.teletalk.com.bd/….