Oil and Gas company Penn Resources, is a successful efforts company, has three proved fields, A, B, and C. Costs and cash flows for the three fields are as follows: Field A Field B Field C Net capitalized costs 5,500,000 8,000,000 9,000,000 Expected undiscounted future cash flows 4,700,000 9,000,000 8,500,000 Expected discounted future cash flows 3,900,000 8,000,000 7,600,000 For each field, (1) determine if impairment is required, and (2) if applicable, calculate the amount of the impairment.