your view should follow the oil-price movement, other than stick on "buy".
As oil price bounce back a bit, I think current risk is low.
$40/b,profit margin is $10, 300000*$10= AUD $5 million.
$50/b,profit margin is $20, 300000*$20= AUD $10 million
So the risk is low ATM, if the economy starts recovery this year, i believe the oil price will be back to $80/b.