PetroChina Tarim Oilfield Company is a subsidiary of PetroChina, focused on the exploration, development, production, refining, and sale of oil and natural gas in the Tarim Basin, Xinjiang Uyghur Autonomous Region, China. Headquartered in Korla, the company is a significant player in one of China's largest ultra-deep oil and gas fields, known for its advanced operational capabilities.

The company specializes in ultra-deep drilling and large-scale oil and gas projects, having achieved notable milestones such as completing Asia's deepest horizontal well and constructing China's largest ultra-deep oil and gas field. PetroChina Tarim Oilfield Company also invests in sustainable energy, exemplified by its 200MW solar photovoltaic power project, which generates approximately 400,000 MWh of electricity annually and significantly reduces CO2 emissions.

Its services include the exploration and development of crude oil and natural gas, production and refining of petroleum products, and marketing of refined petroleum and petrochemical products. The company serves a diverse customer base, contributing to China's energy sector and supporting industrial and commercial energy demands.