Schreiner is a Partner at Rystad Energy, where he leads the firm’s Emerging Markets practice. After graduating with honors from the University of Texas with a bachelor's degree in Spanish and Portuguese, Schreiner began his career at Wood Mackenzie, working out of the Rio de Janeiro office. In his current role, he oversees research and strategic consulting efforts across key emerging markets, with a particular focus on national oil companies and government stakeholders. He is deeply involved in shaping client engagement strategies across Latin America, Africa, and frontier Asia. Schreiner also holds a Master’s Degree in International Oil and Gas Management from the Graduate Institute of International and Development Studies in Geneva, Switzerland.