Abstract: The oil and gas industry must continuously increase its requirements by implementing maintenance strategies for these systems to improve their availability and productivity. So Reliability is vital in the industry, as it ensures stable production processes, equipment performance, and compliance with quality standards. Our article evaluates the reliability of the engine compressor through diagnostic and statistical analysis, identifying the causes of failure and proposing improvements. It offers practical recommendations to optimize efficiency and maintain production continuity, providing practical advice for improving the reliability of motor compressors. Using diagnostic models, and statistical and probability analysis, we identify the main causes of failure and suggest improvements to improve engine compressor reliability. Our findings offer practical guidance for maximizing operational efficiency and maintaining production continuity.