So even though ExxonMobil pumps oil, it can't guarantee that its refining unit will be able to profitably process a barrel into gasoline or heating oil.
所以,尽管埃克森美孚能够开采出石油,但却不能保证公司的冶炼部门将原油冶炼成汽油或燃料油后就能赚钱。
2
Smith says that with the solvent process, oil sands are still economical even if oil is $30 to $40 per barrel, close to what it was in the 1990s and early 2000s (in inflation-adjusted dollars).