Malingin Island is a small island located in southernmost part of Nueva Valencia, Guimaras in the Philippines, situated beside Unisan Island.
In August 2006, the Guimaras oil spill occurred. The 998-ton M/T Solar 1, chartered by Petron (the Philippinesâ largest oil refiner), was carrying 2.4 million litres of bunker fuel sank off the island's southern coast, contaminating 24 km<sup>2</sup>. The Philippine Coast Guard called this the worst oil spill in the country's history. According to officials, of mangroves were affected, including parts of the Taklong Island National Marine Reserve.