Malaysia v. Singapore

The dispute began in 1979 and was largely resolved by the International Court of Justice in 2008, which opined that Pedra Branca belonged to Singapore and Middle Rocks belonged to Malaysia. In 1998 the two countries agreed on the text of a Special Agreement that was needed to submit the dispute to the ICJ. The Special Agreement was signed in February 2003, and the ICJ formally notified of the Agreement in July that year. The hearing before the ICJ was held over three weeks in November 2007 under the name Sovereignty over Pedra Branca/Pulau Batu Puteh, Middle Rocks and South Ledge (Malaysia v. Singapore).

On 23 May 2008, the Court ruled that Pedra Branca is under Singapore's sovereignty, while Middle Rocks belongs to Malaysia. As regards South Ledge, the Court noted that it falls within the apparently overlapping territorial waters generated by mainland Malaysia, Pedra Branca and Middle Rocks. As it is a maritime feature visible only at low tide, it belongs to the state in the territorial waters of which it is located. Malaysia and Singapore have established what they have named the Joint Technical Committee to delimit the maritime boundary in the area around Pedra Branca and Middle Rocks, and to determine the ownership of South Ledge.

Source: http://en.wikipedia.org/wiki/Pedra_Branca_dispute#Procedural_matters