Answer:
Extract as low as possible at present and as high as much possible in the future.
Step-by-step explanation:
The company must sell fewer natural gas units because the sales price is at present and this will constitute to fewer income coming by the sale of natural gas, the company must only earn from natural gas as much as required to finance its needs at present. So to earn a higher revenue proportion in future due to increase in the selling price of the product, the company must extract as much as possible in future to earn more.