Oil Palm Fruits Showing Shell (image) Canale Communications Caption Fruit of the oil palm is showing the thick-shelled fruit (Dura) on the left and thin-shelled fruit (Tenera) on the right. Tenera fruits yield 30 percent more oil per fruit than Dura fruits. Credit MPOB Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.