Xara Zira / Xərə Zirə
|Island of the Baku Archipelago|
|• Total||3.5 km2 (1.4 sq mi)|
Bulla Island, also Xara Zira, Khara Zira or Khere Zire, (Azerbaijani: Xǝrǝ Zirǝ Adası) is an island south of the Bay of Baku, Caspian Sea. It is the largest island of the Baku Archipelago, located off Baku, Azerbaijan.
Bulla Island's area is 3.5 km2 (1.4 sq mi); its length is about 2.4 km (1.5 mi) in length and 1.6 km (1.0 mi) wide. This Island has a spit extending southwestward. The island has akdalaite and aluminium deposits and a mud volcano.
The island is a centre for the nearby offshore gas development of the Bulla Deniz gas field, in production since 1968. It was the largest gas find in Azerbaijan before Shah-deniz and contains more than 4 trillion cubic feet (110 billion cubic metres) of gas reserves.