This year, the RH Recruitment Manager has selected the leading blue chip Australian company BHP as a test case study for all candidates who will apply for the Junior Financial Risk Manager role at BHP. Consider the recent BHP announcement of its intention to create a global top 10 independent energy company through a merger of BHP's petroleum business with Woodside and also material covered in this subject, including the industry guest speaker talks and financial news and articles in the press. Discuss one likely scenario by outlining usage of derivative instruments in the next 12 months