We are excited to announce that as of February 1, Wood Mackenzie is a portfolio company of Veritas Capital, a leading investor at the intersection of technology and government. Our focus remains on providing you with the best intelligence, analytics, data and tools to ensure you are making the best data-driven business decisions with confidence.  

Read more in our news release here. 


Graham Kellas

Senior Vice President, Global Fiscal Research


  • Macroeconomics, risk and global trends

Get in touch with Graham

Tel +44 203 060 0574

Graham has over 30 years’ experience as a petroleum economist, analysing global fiscal systems. In that time, he has advised governments and IOCs on the full range of petroleum taxation matters and has supported industry associations in negotiating appropriate fiscal terms.

Graham leads our fiscal information gathering, modelling and reporting and leads our global fiscal systems multi client reports. The latest, “A balancing act: global fiscal trends and benchmarking” draws on his wide experience with governments, most recently in Colombia, Ireland, Newfoundland & Labrador (Canada) and Lebanon.

In the past, Graham worked for Petroconsultants, two independent oil exploration companies, and as a Research Fellow in Aberdeen University’s economics department.

He is a member of the Association of International Petroleum Negotiators, speaks regularly at industry conferences and leads training in petroleum economics and fiscal analysis around the world.


M Litt. ‘Oil Field Abandonment in the UKCS’, Aberdeen University

MA (Hons) Economic Science, Aberdeen University