通源石油：公司与雪佛龙的合作主要为北美地区射孔业务

Core Viewpoint - Tongyuan Petroleum (300164) primarily operates in North America and domestically, with its collaboration with Chevron focused on perforation services in North America, and there are currently no related business partnerships in other regions [1] Group 1 - The main business areas of the company are North America and domestic markets [1] - The collaboration with Chevron is specifically for perforation services in North America [1] - There are no current business collaborations with Chevron in other regions [1]