Petroleum hydrocarbon contamination carriages a noteworthy hazard to ecosystems and human health. Petroleum hydrocarbons are the organic compounds composed of carbon and hydrogen of different categories of molecular structure and molecular weights. These are considered as hazardous due to carcinogenic and mutagenic nature. Microbial suggestions a cost effective and environmentally friendly resolution by transforming these pollutants into less harmful substances. This study discovers how adding organic materials can improve the biodegradation of petroleum hydrocarbons in contaminated soils. Various amendments including compost, manure, wood chips, biosolids, crop residue and biochar were tested for their ability to arouse microbial activity and quicken breakdown. The results showed that organic amendments significantly increased biodegradation by increasing microbial growth and enzyme activity. Compost proved most effective, tracked by biochar and manure. The study highlights the possibility of organic amendments for long term bioremediation of petroleum-contaminated sites and proposes more research to optimize amendments formulas for wide spread environmental cleanup.