Successful Effort methods and Full Cost methods comparison - Accounting work

I need to identify the items and impact of the change of accounting policies from successful effort method to full cost methods and vice versa using the firm's income statement and balance sheet. I have to use the company 10-k report. 

all info is below

I just need number 2 

Oil and Gas company : Anadarko Petroleum

year : 2015

use 10-k form

http://investors.anadarko.com/sec-filings?o=50

Question #2.

 if the firms that you reviewed is requried by SEC to change its acct policies, from the successufl effort method to the full cost method and vica versa, identify the items and impact of the change of accounting policies on the firm's income statement and balance sheet.