Refractory multi principal element alloys (RMPEAs) have been reported to show favorable oxidation resistance at high temperatures(>1000°C). This is due to the concentrated alloying additions, which facilitate the formation of complex oxides that reduce oxidation kinetics compared to simple, deleterious refractory oxides. These properties are imperative for advanced, high-temperature applications such as turbine blades, power generation, and advanced propulsion systems. However, the oxidation performance in these alloys is still generally poorer than other commercial alloys such as Ni-base superalloys. To improve oxidation resistance, surface modification has been used in other alloy systems to create a thinner, compact oxide scale using the compressive stresses imparted by Laser Shock Peening (LSP). The high dislocation density allows for faster scale formation by diffusion and leads to less specific mass change. This study explores the oxidation behavior of a novel, equiatomic TaTiCr RMPEA that has undergone various degrees of LSP processing to assess the effect of surface modification on the oxidation performance at 800, 1000, 1200, and 1400°C. Open-air furnace oxidation tests were performed for 24-hour intermediate and high-temperature tests and specific mass change was subsequently measured. Environmental reaction products and associated kinetics were characterized and compared to non-processed specimens. This approach is novel in the RMPEA space and will provide valuable insights into future alloy development and research.