Daqing Oilfield Co., Ltd. was established on January 1, 2000. Its business scope includes oil and natural gas exploration, production, technology research and development, technical consulting services and mineral product marketing; basin and surrounding mineral resources exploration, production and mineral product marketing; self-operated Import and export, foreign economic and technical cooperation; production of special equipment for oil drilling and production; processing of perforating equipment; physical cleaning, maintenance and technical services of storage tanks and pipelines; development of oil and gas measurement technology and technical consulting services; downhole tool development, production, sales and maintenance ; Oil and gas field oil (gas) project planning and program design, production, sales and product (technical) testing of oil extraction technology equipment and tools; lubricants, auto parts, auto repairs, daily groceries, stationery, agricultural machinery and accessories, rubber Sales of products, sporting goods (except crossbows), health products, hardware products, building materials, household appliances, and electronic products. Branch operations only: oil and gas pipeline operations; chemical product production and marketing; road cargo transportation; refined oil retail; advertising design, production, release, and agency; food sales; tobacco retail.