This report provides a comprehensive financial analysis of Petroliam Nasional Berhad (Petronas), a fully integrated Malaysian oil and gas company. The analysis begins with an overview of Petronas' core business, market diversification, and past financial performance, including share price trends, Return on Capital Employed (ROCE), and dividend trends. The report then delves into the concept of maximizing shareholder wealth, exploring the efforts applied by the company and its primary and secondary objectives. A crucial section examines external sources of long-term funds, differentiating between equity and debt financing methods like rights issues, debentures, and term loans. The report proceeds with an in-depth analysis of Petronas' long-term funds, including share capital and external equity. Furthermore, the report discusses the Weighted Average Cost of Capital (WACC), its importance, and computation. The analysis also covers capital structure, tax advantages, and the WACC theory. The report concludes with recommendations based on the financial analysis and provides a list of references.