Claudia is responsible for international company research, focusing on the equity analysis, valuations, and strategic assessment of oil and gas companies in Latin America. Her coverage includes most major National Oil Companies (NOCs), Integrated Oil Companies (IOCs), and E&P companies in the region. Previously, she focused on both US gas-weighted E&Ps and European IOCs. Claudia joined S&P Global in 2006.

She is fluent in Spanish. Ms. Pessagno holds a BA (Spanish Language/Latin American Studies) and an MA (International Political Economy & Development) from Fordham University.