Michael Wagner

Michael Wagner is a senior international tax executive with 30 years’ experience across Big 4 and the energy sector, including 8 years as Group Head of Tax for multinational oil and gas companies. Deep expertise in direct and indirect tax, international structuring, transfer pricing, M&A support, tax provisioning/reporting, audit defense, and regulatory advocacy across complex jurisdictions (UK, Western Europe, Eurasia, Kazakhstan, Russia, Turkey, Ukraine, Azerbaijan).

Currently providing fractional Head of Tax services to a small number of international O&G clients. Acts as embedded advisor leading tax risk assessments, global compliance, and planning; designs cross border tax strategies delivering material cost savings; defends high-stakes audits; structures M&A and transfer pricing frameworks; and orchestrates external advisors and in house teams.

Previously Group Head of Tax at Nostrum Oil & Gas PLC, accountable for group tax strategy, provision, reporting, compliance, and planning. Led complex audit defenses, optimized TP policies, supported M&A, and advanced favorable outcomes through regulatory engagement.

Earlier roles include Regional Tax Manager (Eurasia) at Chevron with tax foundation built at PwC and and Deloitte, complemented by commercial leadership as General Manager of an electronic wire harness manufacturer in Ukraine and investment fund asset management experience.

Education: International MBA in Finance (Thunderbird/ASU); BA in Economics (ASU). Languages: Native English, fluent Russian.