This study was conducted to investigate the effect of the age of poultry manure particulate on the bioremediation process of crude oil contaminated soil. pH, Total Hydrocarbon Content(THC) and Total Microbial Count(TMC) were measured to monitor the performance of four soil samples weighing 4kg each. These samples were polluted with 0.2kg of crude oil per kilogram soil; and amended with particulates and fertilizer of 0.2kg and 0.08kg per kilogram soil respectively. The age of particulate used in

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... each sample varied in no particular order from 3days to 126 days. The study lasted 8weeks. Results obtained showed 99.17 %(84.10-0.70mg/kg), 98.07%(82.90-1.60mg/kg), 98.69%(84.10-1.10mg/kg) and 97.72% (83.40-1.90mg/kg) drop in Total Hydrocarbon Content for samples A,B,C and D respectively.THC for all samples fell below the FEPA limit of 10mg/l on closure. Sample A had the highest TMC 3.0x10 6 cfu/g; while D had the least, 2.2x10 6 cfu/g. The pH of all samples at the end of the study (6.5-6.9) fell within the range specified by FEPA (6-9). The overall data suggested that lower aged poultry manure particulates did best and be employed in the amendment of crude oil polluted soil.