Hi i am using World Builder to create Custom Maps for my friends...
Does anyone know how to change Oil Derrick value for Local Player only...?

You can change the value of the money and the time that it takes to give the money using a map.ini code.
Here  is a code to change that, found in fleetatks tutorial. Go to section 10. 1 Second = 1000 Milliseconds. The code is slef explanatory.
If you need any help, we're always here 😉

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You know bro.. You are the Best