2016. MFA Fine Art, National College of Art and Design, Ireland
2012. Professional Master of Education, A Coruña University, Spain
2010. BA Fine Art, Dublin Institute of Technology, Ireland
2020. (Upcoming), Custom House, Westport
2018. Pickled Chimp Ears, Pallas Projects, Dublin
2019. 189th Annual Exhibition, RHA, Dublin
2018. 188th Annual Exhibiton, RHA, Dublin
2017. 187th Annual Exhibition, RHA, Dublin
2016. An Insider Art Exhibition, MCE Public Relations, Belfast
2016. Open Winter, Rua Red, Dublin
2016. Hidden Gems, The annex, NCAD, Dublin
2015. Mottley, Hive Emerging, Waterford
2014. State of play, Emmet House, Dublin
2010. The Most Promising Graduate Award, Talbot Gallery, Dublin
2010. BA Graduate show, D.I.T. Dublin
2018/19. Tony O’Malley Residency.
February 7, 2018. Dublin Inquirer, An artist Captures the travels of Alexander Von Humblodt, by Conal Thomas.
Oscar's work is held in public and private collections including the Office of Public Works, and the Trinity College Visual Art Collection.