Cross-Border Migration and Informal Labour Practices in the Oil and Mining Industries in Africa: A Legal Perspective

The oil and mining sectors in Africa especially Nigeria, Ghana, Burkina Faso and Mali serve as critical engines of economic activity and are among the largest employers of labour in the region, attracting a significant number of cross-border migrant workers. These industries are characterized by a complex interplay between formal employment systems and informal labour practices. While formal sector employment is often limited and heavily regulated, a substantial proportion of the labour force operates within informal frameworks particularly in artisanal and small-scale mining (ASM) and peripheral services in oil production. This legal analysis explores the dynamics of cross-border migration and the informalization of labour within the extractive industries of countries such as Nigeria, Ghana, Burkina Faso, and Mali. It analyses the socio-economic drivers of migration, including poverty, environmental degradation, and regional insecurity, alongside the push and pull factors that shape labour mobility. The study examines the existing legal and institutional frameworks, with particular attention to the gaps in regulation and enforcement that leave migrant workers vulnerable to exploitation, poor working conditions, and legal exclusion. Furthermore, the paper evaluates the broader implications of informal labour on regional integration, economic development, and social stability. It concludes with policy recommendations aimed at strengthening protecti0ons for migrant workers and enhancing the formalization of labour within the extractive sector