Groundnuts are mainly crushed to provide vegetable oil. Oil content, fatty acid composition and proportion of oleic and linoleic acid (O/L ratio) determine the oil quality. In India, early maturing Spanish bunch varieties cover major area but they have poor oil quality. In the present study, foliar disease resistant genotypes along with cultivated varieties were assessed for their fatty acid composition; oil quality and oil yield over two rainy seasons. Analysis of variance indicated significant seasonal effect on linoleic acid, arachidic acid, O/L ratio, oil content and oil yield. Even though the genotype x season interaction effects were significant, the margin of change was more due to genotypes than season in determining fatty acid composition and oil quality. Among the genotypes, foliar disease resistant inter-specific derivatives GPBD 4 (Spanish bunch) and ICGV 87165 (Virginia bunch) had highest oleic acid (46-48 %) and O/L ratio (1.5-1.7) revealing the improved shelf life in these cultivars. GPBD 4 also had higher unsaturated fatty acid content (78.8 %) next to Dh 8 (80.6 %) indicating its nutritional desirability. Oil content (46.8%) and yield (16.14 q ha-1) was highest in GPBD 4 followed by ICGV 87165, B37c and Mutant. It is clear that Mutant and B 37c were significantly superior for oil yield, while GPBD 4 for both oil quality and oil yield over currently cultivated Spanish bunch varieties besides having foliar disease resistance and early maturity.