Participant Type: IndividualBased on the existing information, Thomas M. Buchanan has been involved in 1 investor-State dispute.Counsel (Respondent side) 1 case in this roleOAO Tatneft v. Ukraine, PCA Case No. 2008-8 View case details2 source documentsOAO Tatneft v. Ukraine, Reply Brief of AppellantOAO Tatneft v. Ukraine, Respondent's Motion to Dismiss the Petition to Confirm Arbitral Award