Accessing a value or values by multiple objects?

local work = game.workspace
Deposit = work.Part.Deposit

local event = Instance.new("BindableEvent")
event.Parent = game.workspace.Events
event.Name = "Action"

local list = {work.Baseplate, work.Part}

local function CreateRegion3FromLocAndSize(Position, Size)
	local SizeOffset = Size/2
	local Point1 = Position - SizeOffset
	local Point2 = Position + SizeOffset
	Region = Region3.new(Point1, Point2)
	return Region	
end


local start_pos = work.Part.Position
local Size = Vector3.new(5, 2, 5)

CreateRegion3FromLocAndSize(start_pos, Size)
Region = Region:ExpandToGrid(4)
--work.Terrain:FillRegion(Region, 4, Enum.Material.Slate)

local parts = work:FindPartsInRegion3WithIgnoreList(Region, list, 10)

for i = 1, #parts do
	
	print(parts[i].Name, " <- Part Name")
	print(parts[i].Oil.Value, " <- Value of Reserve")
	
	
		
	function Pumpy(action)
		if action == true then
			print("Pump Activated!")
			
		else print("Pump Stopped!")	
		end
	end
	event.Event:Connect(Pumpy)

	
	Deposit.Value = parts[i].Oil.Value
	--print("Deposit ", Deposit.Value)
	
	
end

The idea is that this script goes inside a "Drill"(Part) that detects within his area of influence (Region3) if there is any reservoir beneath it. If it is, it will display on the screen the Value of the Reservoir. Other functions such as Pumpy are for the GUI.

The bug is that sometimes this works and finds the number, sometimes, even if the Reservoir its in the area, it doesn't show up the number and remains 0.

Moreover, if a "Drill" gets the number, newly spawned "Drills" will have that number even if they are far away from the Reservoir.

If this concept is wrong please feel free to share your opinions and ideas.

Thanks for everyone taking some time here.