This study examined Non-Formal Education Programmes for Mitigating Illegal Oil Refining activities in Khana Local Government Area of Rivers State. It adopted the descriptive survey research design. The population for the study was 453 respondents which comprised 300 members and 153 leaders of registered Community based organizations (CBOs) in Khana Local Government Area of Rivers State. The census approach was adopted to accommodate the entire population of the study as sample because it was a manageable size, representing 100% of the population. Five research questions were posed. The instrument used for data collection was a closed-ended structured questionnaire titled 'Non-Formal Education Programmes for Mitigating against Illegal Oil Refining activities Questionnaire (NFEPMAIORQ)'. The reliability of the instrument was determined through a pilot study, while Cronbach Alpha Statistic Method was used to establish the reliability coefficient (r) value of 0.68. Data collected were analyzed with mean and standard deviation statistics. The findings from the study revealed that to a high extent, environmental literacy, vocational skill development, health education, agricultural extension and entrepreneurship education programmes reduce illegal oil refining in Khana Local Government area of Rivers State. Based on the findings, the study recommended amongst others that: Ministry of environment should intensify efforts in funding environmental literacy programmes as strategy to raise the awareness of community inhabitants especially youthful members of oil producing communities on the impact of the illegal oil refining on the environment.