Haruna Isallah is currently a PhD Candidate at the University of Dundee, passionately engaged in researching the link of petroleum taxation and sustainability. Haruna completed his graduate studies in Accounting and Finance at the Benue State University, Makurdi in Nigeria, in 2008. Haruna has established expertise in taxation. With a record of over a decade of experience in public tax administration in Nigeria, Haruna has experience in tax compliance research and tax audit monitoring of the activities of the companies. His current research centred on petroleum taxation and implications for sustainable development, reflecting his commitment to address crucial issues in the oil and gas sector. Haruna is a member of both the Institute of Chartered Accountants and Chartered Institute of Taxation in Nigeria. Haruna has commitment towards promoting positive environmental, social, and economic changes by sustainability initiatives. This reflects Haruna's devotion to address pressing sustainability issues to expand the field.