I. Guang 'an Aizhong (600979)

The company's main business is hydropower generation, power supply, natural gas supply, domestic drinking water, water and electricity meter calibration, installation and debugging.

Second, China Petroleum (6036 19)

China is the most powerful international drilling contractor and high-end petroleum equipment manufacturer, with related business income of 654.38+75 billion yuan, accounting for more than 95% of the main business; June 5438+October 2008 10, the company successfully obtained the oil and gas exploration right of Wensu block with an area of 1095.937 square kilometers in Tarim basin, Xinjiang, with 866.87 million yuan.

Three, Longzhou shares (002682)

The company has been deeply implementing the three-dimensional development strategy of "taking automobile passenger transport and freight logistics as dual cores and moderately extending the industrial chain". The company is mainly engaged in automobile passenger transport and passenger station management, freight logistics and related automobile and parts sales and maintenance, refined oil and natural gas sales, transportation vocational education and training, commercial factoring and other businesses.

4.CIMC Group (000039)

The main business of Sundyne Company is engaged in the design, manufacture and related technical services of cryogenic liquid storage tanks, tank cars, vaporization equipment and liquefied petroleum gas, liquefied natural gas storage tanks, tank cars, vehicle fuel tanks, gas filling stations, L-CNG automobile gas filling stations, chemical equipment and large steel structures.

5. Xu Dong Blue Sky (000040)

Renewable energy mainly includes photovoltaic power plants and wind power generation; At present, natural gas is the main clean energy; Smart Energy relies on Xu Dong private cloud to realize intelligent management of power station in the whole life cycle. From the upstream core equipment and large-scale energy storage layout to the downstream integration of new energy power stations and smart microgrids, the company goes hand in hand to provide users with systematic "one-stop" new energy solutions.

The intransitive verb Shengli Stock (000407)

Company product categories, natural gas business, natural gas pipeline manufacturing, refined oil trading business.

Seven, Zhuhai Port (000507)

The net profit in 2020 was 263 million, up 18.44% year-on-year.

Eight, Shenzhen gas (60 1 139)

The net profit in 2020 was 13.2 1 billion, up by 24.92% year-on-year. The company vigorously promotes "low-carbon economy and green development" and receives second-tier natural gas from Central Asia, laying a solid foundation for optimizing Shenzhen's energy structure, improving the atmospheric environment and meeting the demand for clean energy for economic and social development.

Nine, Hangyang shares (002430)

The net profit in 2020 was 843 million, a year-on-year increase of 32.72%. Hangzhou Hangyang Co., Ltd. is an enterprise engaged in the production and sales of air separation equipment, industrial gas and petrochemical equipment. Its air separation equipment products mainly include large and medium-sized complete sets of air separation equipment and small air separation equipment. Industrial gas products mainly include oxygen, nitrogen and argon. Petrochemical equipment products mainly include ethylene cold box, liquid nitrogen washing cold box, natural gas liquefaction separation equipment, liquefied petroleum gas storage and distribution device and other equipment. At present, our company is one of the largest manufacturers of air separation equipment in China, and its domestic market share has always remained the first in the industry.

X. Shouhua Gas (300483)

In 2020, the net profit was 65.438+0.08 billion, a year-on-year increase of 46. 1. 1%. At the end of 18, it acquired 50.50% equity of Zhonghai Wobang, a small natural gas leader in Shanxi, and now the company's layout in the field of natural gas exploitation. China Shipping Wobang has cooperative blocks and rich natural gas reserves. Through the cooperation with China Petroleum and Natural Gas Group Corporation, we have obtained the right to explore, develop and produce natural gas in Shilou West Area. 19 natural gas revenue in the first half of the year was 602 million yuan, accounting for 79 1.