Steamflood is one of the best thermal enhanced oil recovery methods to improve heavy oil production. This project focuses on the benchmarks of steamflood performance in two types of sand: homogenous and heterogeneous formations in the XYZ field. The co-kriging technique was implemented to generate the porosity and net to gross distribution. Afterward, twelve designs of experiments were run to obtain the oil production information and analyze the affecting factors of steamflood performance on each sand. The findings showed that clean sand provided higher oil production compared to the fining sand. Additionally, the well spacing had a higher contribution compared to the steam quality in applying steamflood injection. This study could serve as a guideline for engineers for planning the well spacing and steam quality utilization in steamflood injection in these two types of sand formation that contain heavy oil reserves. © 2023, Semarak Ilmu Publishing. All rights reserved.