On March 1,2010,Anniston Company Purchased an Oil Well at a Cost

On March 1,2010,Anniston Company purchased an oil well at a cost of $1,000,000.It is estimated that 150,000 barrels of oil can be produced over the remaining life of the well and the residual value of the well will be $100,000.During 2010,15,000 barrels of oil were produced and sold.Which of the following statements is incorrect with respect to the accounting for the oil well?

A) The 2010 cost of goods sold was $90,000.
B) The book value of the oil well decreased $90,000 during 2010.
C) The inventory of oil increased $90,000 during 2010.
D) The depletion rate is $6.00 per barrel of oil.