Bioremediation is the waste management technique that involves the utilization of organisms to get rid of or neutralize pollutants from a contaminated site. Nutrient supplementation for petroleum hydrocarbon degradation In biostimulation technology,  has traditionally focused on addition of nitrogen (N) and phosphorus (P), either organically or inorganically. The effects of nutrients (i.e. NPK), aeration and biostimulation of indigenous soil microorganisms and inoculation of extraneous microbial consortia on the bioremediation of oil contaminated soil are investigated. Waste materials have a robust potential within the bioremediation of oil-contaminated sites, due to their richness in nutrients and their economical feasibility. We used sewage sludge, soybean flour , and wheat straw to biostimulate oil degradation during a heavily contaminated desertic soil . While oil degradation was assessed by Maintaining the produced CO2 and by using gas chromatography–mass spectrometry (GC–MS), shifts in bacterial community composition were monitored using illumina MiSeq