The purpose of the article is to compare actual owners of European gas storage and transmission companies with preferred ones based on experts' assessments from the perspective of the Energy Union dimensions.Tasks of the research include explaining the topicality of the research, collecting data on owners of European gas storage and transmission companies, grouping companies in accordance with their ownership structures, obtaining expert assessments on preferred owners of the companies, comparing actual owners with preferred ones as well as drawing corresponding conclusions.Methods used are single linkage cluster analysis, structured expert interviews, analytic hierarchy process, monographic method, document analysis, case study method, literature review and others. The research covers gas storage and transmission companies in Europe, which are members of the Gas Infrastructure Europe Association. Companies are grouped into clusters according to the shares of the defined types of owners. Experts with sufficient knowledge on five dimensions of the Energy Union were interviewed in order to obtain assessments on preferred owners for the companies subject to research. Expert interview results were processed by using the analytic hierarchy process. At the final stage of the research, actual owners were compared to preferred ones derived from expert assessments and corresponding conclusions drawn.Six various clusters of gas storage companies and seven ones categorising transmission companies were identified while fifteen companies were defined as outliers. Apart from holdings by states of establishment, which constituted the most of observed cases, in many other instances both other European union state as well as non-EU state holdings were revealed in the companies subject to research. Expert assessments processed by the analytic hierarchy process revealed the most and the least preferred clusters from the perspective of the five dimensions of the Energy Union.DOI: http://dx.doi.org/10.5755/j01.eis.0.11.18247

中文翻译：

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欧洲气体储存和传输公司的优先拥有者

本文旨在从能源联盟的角度对欧洲储气与输气公司的实际拥有者与专家进行比较，并根据专家的评估进行研究。研究的任务包括解释研究的主题性，收集有关拥有者的数据欧洲储气和输气公司，根据其所有权结构对公司进行分组，获得对公司首选所有者的专家评估，将实际所有者与首选所有者进行比较，并得出相应的结论。使用的方法是单链接聚类分析，结构化专家访谈，层次分析法，专论方法，文献分析，案例研究方法，文献综述等。这项研究涵盖了欧洲的天然气储运公司，是欧洲天然气基础设施协会的成员。根据定义的所有者类型的股份，将公司分组为集群。采访了对能源联盟的五个方面有足够知识的专家，以便对研究对象的公司进行优先所有者评估。专家访谈结果通过使用层次分析法进行处理。在研究的最后阶段，将实际所有者与专家评估和得出相应结论得出的首选所有者进行了比较。确定了六个不同类型的储气公司集群和七个对输电公司进行分类的公司，而将十五个公司定义为离群公司。除了构成国家最多的案例外，在许多其他情况下，受研究的公司也同时披露了其他欧盟国家和非欧盟国家的股份。层次分析法处理的专家评估从能源联盟的五个维度的角度揭示了最受青睐的集群。DOI：http：//dx.doi.org/10.5755/j01.eis.0.11.18247