In this article, we explore the impact of colliery closure programs across the nationalized British coal industry. We chart the regional disparities in these and the mobilization of community opposition to national protests, leading to the national miners’ strikes of 1972, 1974, and 1984–5. This article demonstrates how closures have changed the industrial politics of mining unions for miners, junior officials, and managers and have increasingly alienated NCB officials and mining communities. We demonstrate how this undermined the ideals of nationalization. This is examined through moral economic frameworks and within the context of changes to the UK’s energy mix, with implications for contemporary deliberations on public ownership, energy transitions, and regional development.