Santos Valuation $4.50

Below is the Santos estimate on 23rd Feb by 14 brokers when Oil Price was $33/Barrel
1) Since then Oil is up almost 6 dollars.
2)  UBS plus few other broker says Santos should rise 85 cents for each 5 dollar Oil Rise.
3) That means add another $1.05/share to the chart price.
4) Citibank says add 15 cents to new ORG Gas supply contract as most likely they need buy gas from Santos
5) UBG Says Santos $4.35 cents
5) Taking all these into consideration, I feel Santos Median Valuation should be $4.50 (plus minus 30 cents)
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(Feedback from all experts will be highly appreciate )