Hi Chidozie,
I have worked in support role for an Oil and Gas organization. With my experience I can say you must know the basics of how Oil and Gas companies take the oils from wells(Upstream process) and refine it ('Chemicals Process' and refinement to create end products ex: extracting Petrol, Deisel, Wax, Kerosene etc from crude oil) and distribute the end products in the market (Downstream Process).
As an FI consultant you must be well versed with the integration of FI with Logistics, PS, CO. It will be added advantage if you have skills in Joint Venture Accounting (JVA) and Production and Revenue Accounting (PRA).
Hope this information will help you!.
Regards,
Krishna Kishore