Let demand (Q_d) and supply (Q_s) of oil be equal to the following linear functions:

Q_d = 99 - 7.7 P_oil + 2.8 P_gas + 8 M

Q_s = 3 + 7.5 P_oil - 0.8 P_K - 6.7 P_L - 7.5 P_N

Where

P_oil is the price of oil,

P_gas is the price of gas (set = 59),

P_K is the price of capital (set = 65),

P_L is the price of labour (set = 62),

P_N is the price of natural resource (set = 34), and

M is a measure of weekly income (set = 519).

Assuming that the market for oil is perfectly competitive, what is the total surplus at the current market equilibrium?

(your answer must be rounded off to the whole number, i.e., no decimal places)