Carbondale Oil announces that a well that it has sunk in a new oil province has shown the 
existence of substantial oil reserves. The exploitation of these reserves is expected to increase 
Carbondaleʹs free cash flow by $100 million per year for eight years. If investors had not been 
expecting this news, what is the most likely effect on Carbondaleʹs stock price upon the 
announcement, given that Carbondale has 80 million shares outstanding, no debt, and an equity 
cost of capital of 11%? 
A) no effect 
B) rise by $5.15 
C) rise by $6.43 
D) rise by $7.72