: Strategic Allince Performance in Iran’s Oil, Gasand Petrochemical Industry

Forming of strategic alliances is one of the most important strategies of firms in the oil industry and its related industries; so, the performance evaluation is also an important field of study this is considered. in these kind of studies, The purpose of this study is to present a model of strategic alliances performance with respect to alliance diversity. from 113 questionnaires distributed among firms participating in strategic alliances in the oil, gas and petrochemical industry, 73 usable questionnaires were returned. Latent variables are all in the range of acceptable reliability. To test the model, partial Least Squares Method and Smart PLS-Graph software version 2.0 was used. The results showed that alliance experience has a positive effect on alliance management capability and Alliance performance. Positive impact of Alliance management capability on competitive advantage, and competitive advantage impact on performance is also confirmed. Separation of impacts Showe that experience has a significant impact on the performance of alliances.