“(a) BGTL is equally able to calculate Gross Revenue on the basis set out in Article XIX as the Sellers. It is the product of the Contract Price which BGTL will know, and the Annual Contract Quantity (i.e. the DCQ on an annual basis). (b) BGTL would bear in mind that Gross Revenue represents a maximum level for Production Costs which the Sellers can bear – if the latter exceed Gross Revenue, the Article XIX.1 test will show that continued production will no longer be Economic. (c) BGTL can rely upon its own extensive experience as a buyer of gas, and is able to obtain publicly available and objective material on Production Costs, such as Wood Mackenzie’s publications (an energy industry consultancy that produces detailed information on UK oil and gas fields). It could have instructed an external consultant to analyse the position and advise on whether to issue notices of objection. This fits with the six month period provided by Article XIX, Clause 4 for BGTL’s response.” (b) BGTL would bear in mind that Gross Revenue represents a maximum level for Production Costs which the Sellers can bear – if the latter exceed Gross Revenue, the Article XIX.1 test will show that continued production will no longer be Economic. (c) BGTL can rely upon its own extensive experience as a buyer of gas, and is able to obtain publicly available and objective material on Production Costs, such as Wood Mackenzie’s publications (an energy industry consultancy that produces detailed information on UK oil and gas fields). It could have instructed an external consultant to analyse the position and advise on whether to issue notices of objection. This fits with the six month period provided by Article XIX, Clause 4 for BGTL’s response.”