Performance or non- performance at National Coal Company? Asist. univ. drd. Sorin-Ciprian Teiuşan Universitatea „1 Decembrie 1918” Alba Iulia E-mail: cteiusan@yahoo.com Abstract: This paper work contains two parts. The first include a few theoretical aspects about the performance concept: definition, measurement modalities, and the second a practical study about the performance at the Romanian most important producer of pitcoals. Key words: performance, non – performance, national coal company JEL Code: L71