Petroleum University of Technology Petroleum Business Review 2645-4726 5 2 2021 04 01 Providing a Model for Optimal Capital Structure in Gas Refining Companies and Determining Parameters Using the AHP Method 25 35 129637 10.22050/pbr.2021.270402.1164 EN Somayeh Alimoradi Gaghdari Ph.D. Candidate, Department of Fnancial Management,Kish International Branch, Islamic Azad University, Kish island, Iran 0000-0002-7239-1990 Mohamad Reza Mehrabanpour Assistant Professor, Department of Management and Accounting, University of Tehran 0000-0002-1086-5652 Ali Najafimoghadam Assistant Professor, Department of Accounting, Islamic Azad University, Tehran, South Tehran Branch, Iran Journal Article 2021 01 26 Companies have access to various financial resources to implement available profitable investment projects, settle overdue debts, increase working capital, and pay dividends to shareholders. Correct decision-making and the ability of companies to determine the appropriate financial resources are the main factors in company success. The effects of financing on the company’s return and risk are the most important goals that management should consider when choosing a financing method and selecting resources that minimize financing costs. In this research, the fuzzy Delphi method was first used to identify financing methods and the criteria for selecting the appropriate financing method. Then, the AHP method was used to prioritize the parameters. This study showed that efficiency, cost, sustainability, operationality, fairness, and transparency are the most important criteria for selecting financing methods in gas companies. Forming subsidiary consortia, receiving facilities, issuing participation bonds, creating an investing company, presence in the stock market, creating a shareholder plan have also been identified as financing methods https://pbr.put.ac.ir/article_129637_a81c791151946af30c9d8a23e9291a85.pdf