Group 1 - The article emphasizes the importance of gas safety during the May Day holiday, highlighting the proactive measures taken by China National Petroleum Corporation (CNPC) to ensure safe gas supply for residents [1][10] - Various subsidiaries, including Linyi and Dezhou, conducted thorough safety inspections of gas facilities, focusing on valves, pipelines, and pressure regulators to ensure operational safety during the holiday [3][5] - Public safety awareness campaigns were implemented, distributing safety manuals and conducting demonstrations on emergency responses to gas leaks, enhancing community knowledge on safe gas usage [5][9] Group 2 - The article details the increased frequency of inspections and monitoring in key areas, particularly in densely populated regions and commercial users, to maintain a "zero blind spot" approach to gas safety [3][9] - Employees at gas stations, such as in Jinan, engaged in comprehensive checks of critical equipment, ensuring all systems were functioning correctly to provide uninterrupted gas supply during the holiday [10] - The commitment of CNPC employees to prioritize safety and operational readiness during peak usage times reflects the company's dedication to maintaining a reliable gas supply for the public [10]