* Chongqing Kaiyuan Oil and Gas Co., Ltd. ..
* Jiangbei Branch of Chongqing Gas Group.
* Shapingba Branch of Chongqing Gas Group.
* Nan 'an Branch of Chongqing Gas Group.
Chongqing Fuling Gas Co., Ltd.
* Chongqing Gas Group Gas Supply Branch.
* Chongqing Hechuan Gas Co., Ltd.
* Chongqing Yuchuan Gas Co., Ltd.
These companies are regular professional natural gas supply companies, among which Chongqing Kaiyuan Petroleum and Natural Gas Co., Ltd. is the largest professional town gas supply company under China Petroleum Southwest Oil and Gas Field Company, the second largest town gas supply enterprise in Chongqing, the largest CNG filling enterprise in Chongqing and the top 100 enterprises in Chongqing. If necessary, it is recommended that you contact a regular natural gas company to ensure the safety of your gas use.