Abstract
Project leadership is still an active research topic. In the oil and gas industry, mega projects cost millions of dollars to execute, and project delays can lead to avoidable losses when exemplary leadership behaviour is adopted. The challenges impacting project performance can be resolved through efficient and effective leadership. The cost of project financing increases with delays in project completion, reducing project cost-benefit value, and escalating exposure of the environment to more damages from project activities. Eighty-two case studies in the literature were reviewed, and the salient attributes of project success were outlined. From the findings, we advocate for a leadership structure that recognizes the unique roles of project leadership with more emphasis on enhancing the team's effectiveness, hence Path-Goal Leadership. This study is premised on the oil and gas industry because it is currently the major driver of the Nigerian economy; hence effective project leadership can save the nation huge costs from project delays in this sector.