According to Zhipeng's website, the treatment of China National Petroleum Coalbed Methane Co., Ltd. varies with individual position, working place and working years. The average salary of coalbed methane in PetroChina is 4844 yuan per month, of which 33% of the salary income is in the range of 3000 to 4000 yuan per month, and 33% of the salary income is in the range of 5000 to 6000 yuan per month.