The aim of this study is to empirically examine the association between audit efficiency and board activity among listed energy companies in Saudi Stock Exchange (Tadawul) for the period 2012-2019. The final sample of this study consists of 32 firm-year observations. Using the Pooled OLS regression, the study finds that audit efficiency was positively related to board activity. Moreover, the result indicates the complementary role of monitoring mechanisms in which audit efficiency complements the board activity. The study also provides insightful evidence to policy makers on the link of audit efficiency and board activity among energy companies.