The present invention addresses the problem of providing: a fat composition which is low in trans fatty acids and is suitable as an ingredient of whipped cream and an oil-in-water emulsion containing the fat composition. Provided are: a fat composition containing 20 - 70% by mass of L2O and a total of 0.05 - 10% by mass of L2M and LM2, the mass ratio of LOL to the L2O (LOL/L2O) being 0.40 - 0.85 the fat composition containing not more than 10% by mass of LLL and the fat composition containing not more than 10% by mass of XXX.本發明提供一種具有低的反式脂肪酸含量、且適於攪打奶油的原料的油脂組成物,及含有該油脂組成物的水中油型乳化物。一種油脂組成物,其包含20質量%~70質量%的L2O及0.05質量%~10質量%的L2M與LM2的合計含量,LOL於所述L2O中所佔的質量比(LOL/L2O)為0.40~0.85。所述油脂組成物包含10質量%以下的LLL。所述油脂組成物包含10質量%以下的XXX。無