"Wet combustion" is a process for oxidizing organic materials with air or oxygen under a condensed water phase. We looked at the we combustion of Antrim oil shale in a series of batch bomb experiments over the temperature range from 300 to 400supO/C and pressures up to 4000 psig. Oxidation does occur under these conditions. The rate is substantially lower with water present. There is no attack on the inorganic matrix. Wet combustion seems to offer no advantage over the dry case in these batch experiments.