1) Oil field of Indonesia 
Ambalat is a sea block in the Celebes sea which is part of Indonesia sovereignty. Ambalat sea block is located off the coast of the Indonesian province of North Kalimantan and south-east of the Malaysian state of Sabah. Malaysia refers to part of the Ambalat block as Block ND6 (formerly Block Y) and part of East Ambalat Block as Block ND7 (formerl...