, respectively. Moreover, NPV for Mehregan, Shush, Baharan and Narin were 266200, 211000, 469200 and 415200 million Iranian Rials, respectively. Benefit Cost Ratio (BCR) for Mehregan, Shush, Baharan and Narin were 4.6, 1.5, 12.2 and 7.7, respectively. IRR...