This study examined triple bottom line reporting and performance of the oil and gas companies in Bayelsa State of Nigeria. Specifically, the study aimed to assess the degree of the oil and gas companies’ intervention in the social-economic welfare of the host communities as well as their level of compliance to environmental sustainability and standards. The theoretical foundation for this study is anchored on the Maroochy Shire Council theory. Based on the descriptive survey approach research design, primary data was generated through a structured questionnaire for the study, and the Pearson Product Moment Correlation Coefficient (PPMCC) was adopted to analyse the data. The findings showed that there is a significant level of influence of the oil and gas companies’ intervention on the socioeconomic welfare of the host communities on performance. The study also revealed that there is a significant level of influence of oil and gas companies’ compliance to environmental sustainability and standards on performance. Hence the study concluded on the overall that there is a significant relationship between triple bottom line reporting and performance of oil and gas companies in Bayelsa State. Thus the study recommends among others that oil and gas companies should ensure that they intervene on issues that concerns the socioeconomic welfare of their host communities in terms of provisions of pipe born water, electricity, good road, scholarship to encourage individuals to study to any level of education of their choice. By so doing oil and gas companies would enjoy unhindered operations and achieve performance improvement.