Integrating Internal and External Environmental Accounting Disclosures: A Pathway to Enhanced Corporate Performance in Nigeria's Oil And Gas Sector

This study investigated the integrated effects of internal and external environmental accounting disclosures (IEEAD) on the corporate performance of listed oil and gas companies in Nigeria. Utilizing panel data from 2015 to 2024 and complemented by a pooled regression analysis, the study evaluated how various disclosure components impacted corporate performance, measured through Return on Assets (ROA), Return on Equity (ROE), and Profitability (PROF). Results revealed that internal environmental accounting disclosures, particularly waste management practices, significantly enhance profitability and operational efficiency. External environmental accounting disclosures yielded mixed outcomes, with compliance and carbon emission disclosures showing minimal statistical significance. However, the interaction between internal and external disclosures demonstrated a compounded positive effect on overall corporate performance. These findings underscored the strategic importance of harmonized environmental accounting disclosure practices in promoting sustainability and financial success. The study recommended mandatory, standardized reporting frameworks for Nigeria’s oil and gas sector.