He is responsible for overseeing global Herold transaction
analysis, including the upstream M&A and Significant Energy
Assets on the Market (SEAM) products. This insight research
includes M&A Alerts, Monthly Perspectives, Quarterly
Transaction Reviews, Year-End Transaction Reviews, and SEAM Alerts
and Perspectives, as well as a global energy industry M&A
database with more than 40,000 transactions. He is the primary
author of the annual Herold Global Upstream M&A Review from IHS
Markit, regularly presenting its findings to clients. In 1995, Mr.
Sheehan joined IHS Markit Herold, now part of IHS Markit, and spent
five years as a senior analyst following North American E&P
companies. He holds a Bachelor of Arts and an MBA from the
University of Connecticut, US.