OPEC: Oil Prices to Hit Over $160 per Barrel by 2040 - OPEC
OPEC, on the other hand, will need to invest an average of more than $40 billion annually in the remaining years of this decade, and over $60 billion annually in the long-term.
Average annual upstream investment requirements for non-OPEC in the long-term will decline to around $210 billion on the back of declining crude supply.
The investments needed in the midstream and downstream sector combined are estimated at around $2.7 trillion between 2015 and 2040.