running total (SQL query)

I have this table:

        Name Score

	Werner		200
	Hugo	       -100
	Heinz		300
	Bruno		100

I want this table to be printed like the following:

        Name Score total

	Werner		200	200
	Hugo	       -100	100
	Heinz		300	400
	Bruno		100	500

How can I do that with Oracle (without report-generator) ?

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