Ukraine o Naftogaz kua ui te 'ataahua' utu mo te hau, me te karanga mō te Gazprom ki te hoki tara bn i roto i te overpaymentsKo te kamupene rēhitatia te take ki te Apitireihana Institute o te Stockholm Chamber o Tauhokohoko (SCC) e ai ki te kamupene i te tauākī. Te mahi titauraa i te mākete ataahua utu mo te hau e te Russia kai ki te Ukraine me te karanga mō te utu hoki i te taikaha utu e Naftogaz ta te reira kua utua mai i te tau. bn i roto i te hau nama.