通源石油：北美客户包括雪佛龙、西方石油等油气公司及其他北美当地客户

Core Viewpoint - Tongyuan Petroleum has established solid partnerships with major North American clients, including Chevron and Occidental Petroleum, indicating a strong market position in the oil and gas sector [2] Company Summary - Tongyuan Petroleum's North American clients include internationally recognized oil and gas companies such as Chevron and Occidental Petroleum, as well as other local clients [2]