Find the copy of the 10-K for: To compare inventories containing any LIFO values to a competitor's inventory, an adjustment must be made to approximate current cost. Identify the TOTAL book value of all inventories for CVX and XOM at year end. Determine the dollar value of inventory that would be used to compare to a competitor's inventory for each company's most recent year end. Dee. 31, 2015. Find the copy of the 10-K for: To compare inventories containing any LIFO values to a competitor's inventory, an adjustment must be made to approximate current cost. Identify the TOTAL book value of all inventories for CVX and XOM at year end. Determine the dollar value of inventory that would be used to compare to a competitor's inventory for each company's most recent year end. Dee. 31, 2015