: 10.56472/25835238/IRJEMS-V5I8P108Sunny Nwachonimuya Ikeogwu. "Firm Characteristics and Stakeholder Accountability Predictors of Environmental Disclosure among Listed Nigerian Oil and Gas Firms" International Research Journal of Economics and Management Studies, Vol. 5, No. 8, pp. 92-100, 2026. Crossref. https://doi.org/10.56472/25835238/IRJEMS-V5I8P108
Environmental effluent disclosure has attracted regulatory and investor attention because it signals corporate environmental management capacity and risk exposure. Yet firm-level determinants of its disclosure quality remain less understood in the Nigerian oil and gas context, which is one motivating factor of this study that seeks to assess the effect of firm attributes on environmental information disclosure. The specific objective is to determine the effect of leverage, firm size and audit committee size on effluent information disclosure of listed oil and gas firms in Nigeria. An ex-post facto research design was used in this study, with a population consisting of eight (8) oil and gas companies listed on the Nigerian Exchange Group (NGX). A purposive sampling technique was employed to select seven (7) listed oil and gas firms over a ten (10) year period, 2015 to 2024. The hypotheses were tested using a Panel Corrected Standard Errors regression technique, whose findings revealed that leverage has an insignificant effect on effluent disclosure, firm size has a significant positive effect on effluent disclosure, while audit committee size has a significant negative effect on effluent disclosure. Conclusively, this study shows that environmental effluent disclosure is significantly shaped by firm size and audit committee structure. Thus, it is recommended that senior executives and strategic planning units of oil and gas firms in Nigeria should leverage their scale, infrastructure, and stakeholder influence to lead by example in environmental disclosure by mandating the integration of effluent reporting into the firm’s enterprise risk management and sustainability strategies.
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Environmental Disclosure, Firm Size, Leverage, Panel-Corrected Standard Errors (PCSE).