European stocks extended their gains early on Wednesday as euro zone banks such as BNP Paribas and UniCredit surged, eclipsing a drop in tech shares after Oracle's disappointing results.

At 8:24 a.m. (British time), the FTSEurofirst 300 <.FTEU3> index of top European shares was up 1 percent at 985.62 points.

BNP Paribas was up 4.4 percent and UniCredit up 2.4 percent, while SAP was down 3.8 percent.

(Reporting by Blaise Robinson; Editing by James Regan)