Indonesian Journal of Oil Palm Research Volume 27 Number 2 Year 2019 is published by presenting articles: The growth of oil palm with oil palm midrib organic fertilizer and humic acid; Application of palm kernel oil based Cocoa Butter Substitute (CBS) in formulation of insant coffee, chocolate and mix drinks; Characteristics of flower and fruit development of 35 Angola accessions of Indonesian Oil Palm Research Institute’s collection at Adolina Estate of PT Perkebunan Nusantara IV; Economic value of oil palm sap as potentially financing for oil palm smallholders; and Soil fertility and photosythesis rate of oil palm showing white stripe symptoms in peat land in Labuhan Batu.