The study investigated the relationship between synergistic work systems and project execution success in oil and gas firms in Rivers State. The study employed a sample of 168 workers across 33 registered oil and gas firms in Rivers State. Primary data as gotten through structured questionnaires were used for empirical analysis based on the structural equation modeling and confirmatory factor analysis estimation. Using stakeholders’ satisfaction as a measure of project execution success, the study observed that the various dimensions of synergistic work systems such as; administrative integration, and synergistic alignment showed a positive relationship with the stakeholders’’ satisfaction. The study, therefore, concluded that improving the synergistic alignment process generally improves stakeholders’ satisfaction. The study, therefore, recommends that; stakeholders’ satisfaction and client satisfaction should be a significant priority in the oil and gas industry even when there are no synergistic work systems. Members of oil and gas firms work systems should share Information on promotional events, demand forecast, price changes, current inventory level, supply disruptions, order status or order tracking, delivery schedules, inventory policy, perceived risk factor, point of sale data, etc., to enhance cost efficiency, project schedule management through operational flexibility and customer patronage. Similarly recommended is a continuous improvement in synergistic work systems of the firms would improve project schedule. Members of the oil and gas work system should endeavor to share, risk, cost, as well as rewards, with other members of the work system, to enhance cost efficiency and project schedule management through operational flexibility.

Keywords: Synergistic works systems; project execution success; oil and gas project; stakeholder satisfaction; project schedule management