The document discusses the importance of cost management and analysis in the petroleum upstream industry, highlighting how many companies overlook cost control during exploration unless facing financial challenges. It outlines the types of costs in oil and gas operations, such as exploration, development, and operating costs, while emphasizing the need for detailed record-keeping and critical cost identification to optimize performance. Additionally, the paper addresses the oligopolistic nature of the market and provides insights for management accountants and financial controllers on effective cost management strategies.