The scarcity in literature of clear-cut methods and techniques used in determining the impact of corporate social responsibility (CSR) on a firm's performance has led to mixed results. The most current empirical studies employed diverse CSR measures as well as performance measures. This study aims to examine the effect of CSR on the performance of oil and gas companies in Nigeria using the Thomson Reuter index as a measure of CSR and price-cost margin in addition to return on assets (ROA) and earnings per share (EPS) as measures of performance. Annual panel data from 55 oil companies for the period 2010-2019 operating in upstream, midstream, and oilservicing activities were used. Findings revealed a negative non-significant relationship between CSR and price-cost margin (PCM) of the firms under study. These findings support the shareholder theory, which hypothesizes that the corporate social responsibility of the citizens is solely the responsibility of the government and that the responsibility of firms is profit-making. Mixed results of negative non-significant and positive significant relationships were recorded between CSR and ROA. This result also supports the stakeholder theory, which emphasis shareholders' interest in all aspects of business operation. The corporate social performance (CSP) dimension correlates with the true nature of the Nigerian economy where firms make donations to communities and erect buildings for health and education purposes. A positive nonsignificant correlation was reported between CSR and earnings per share. There is room for improvement regarding performance and this can be achieved by increasing the CSR scores. Failure to do so may lead to a crisis which may inevitably affect performance. Contribution/Originality:This study is one of the few studies that adopted the Thomson Reuter index as a measure of CSR and price-cost margin as a measure of a firm's performance. The modern econometric panel data technique was also adopted to expand and improve on the empirical analyses already conducted in Nigeria.

This study is aimed at analyzing the influence of Corporate Social Responsibility (CSR) on the Cost of the Capital (CoC) of the companies quoted on the Nigerian Stock Exchange (NSE). The annual panel data of the 32 companies quoted on the NSE pertaining to the period from 2005 to 2019, were judgmentally selected. The Thomson Reuthers Index was used as the measure for CSR, whereas the Cost of Equity (CoE) and the Cost of Debt (CoD) were used as the measure for CoC. The findings revealed the existence of a positive/negative nonsignificant relationship, on the one hand, and a positive/negative significant relationship as well, on the other, between CSR and CoC. The results obtained are supportive of the findings found in scholars' works, especially those in the developed countries in which this aspect has extensively been explored. To conclude, the companies that spend on CSR have a better chance of accessing capital at a better and low cost. Based absolutely on the findings, the researcher advocates that investment should incessantly be made in the issues concerning CSR, given the fact that, if consistently made, such investment may ease access to funds at a reduced cost.