The purpose of this research is to ascertain the impact of oil spillage on marine ecosystem in the Niger Delta religion of Nigeria. To achieve this study 14 items structured questionnaire of yes or no was developed by the researcher and administered to one hundred and fifty (150) respondents randomly sampled from five communities in Ogba/Egbema/Ndoni Local Government Area of Rivers state. The data gathered were analyzed with a simple percentage. From the analysis, it was found that: 1. Oil spillage damage the environment, degrade the soil destroy buildings and aquatic life. 2. Oil and gas exploration affect the culture of the people. 3. Oil and gas exploration affect the health of the people. Recommendations were also made.