Indonesian Journal of Oil Palm Research Volume 24 Number 1 Year 2016 is published by presenting articles Fatty acid compositions and IOD oil numbers from nine varieties of commercial palm oil DxP in PPKS, genetic diversity of E. oleifera population and population E. guineensis x E. oleifera in germplasm collection PPKS, Distribution of oil palm plantation and soil physical properties on planting hole size and different palm empty fruit bunch application, Improved properties and prevention of peat soil hydrophobicity in oil palm plantations through application of slag, Progression of Elaeidobius kamerunicus faust post-introduction and increased fruit set of set of oil palm in Seram Island, Maluku, Indonesia.