The Bạch Hổ oil field (White Tiger oilfield) is a major oil field in the Cuu Long basin of the East Sea located offshore due east of the Mekong Delta of Vietnam.

[1] Bạch Hổ is not the only oil field convincingly shown to be hosted in granite;[3] however, inspection of the seismic profile of the area shows faulted basement passive margin which is sealed by an onlapping sedimentary sequence.

[4][5] It is plausible that the oil has migrated laterally from the lowermost, mature sediments into the fault systems within the granite.

The seismic profile shows a definite basement horst with onlapping sedimentary source rocks, draped by a reservoir seal.

Mobil struck oil in the Bạch Hổ field in February 1975, shortly before the Fall of Saigon.