Oil palm (Elaeis guineensis Jacq.) can produce a greater oil yield than other oil plants. This research was conducted to evaluate clones, environment and interaction between genotypes with environment that affected phenotypic traits and estimated stability of oil palm clones. Seven varieties include Azteca Eagle Emerald Nemo Titan Tornado and Deli x Lame, aged 10 years old. These varieties were planted at 2 locations in Southern Thailand including Lamae and Sawee district, Chumphon province. The experiment at each location was designed as completely randomized design with 15 replications. Yield and yield components were collected during October 2018 - September 2019. All data were analyzed using combined analysis to test the significance of G x E interaction. Furthermore, the stability were evaluated by regression methods. The results reported that the oil yield of clones were significantly difference at p<0.01, location factors were also showed high significantly difference. In each location, Titan clone could provide oil yield more than other clones at Lamae and Sawee district, with regression coefficient was 1.42 it can be recommended as a clone in Lamae and Sawee district. Emerald Nemo Azteca Tornado and Eagle clones well adapted to all the environments with correlation coefficient was 1.25, 0.93, 0.92, 0.95 and 0.82, respectively.