Abstract: During the 14^th Five–Year Plan period, PetroChina Company Limited (hereinafter referred to as “PetroChina”) has been committed
to high-quality development of oil and gas exploration, and vigorously advanced efficient exploration guided by the Seven–Year Action Plan. As a result, 30 significant results in five major fields have been achieved in domestic oil and gas exploration, including marine carbonate rocks, continental lake basin lithologic–stratigraphic traps, foreland thrust belts, shale oil and gas, and deep coal rock gas, forming nine largescale oil reserve areas and seven large-scale natural gas reserve areas by intensive exploration activities. The exploration achievements show distinct characteristics of multiple breakthroughs in various fields on the plane, simultaneous exploration of both shallow and deep formations in vertical direction, and parallel advancement of both conventional and unconventional resources. Specially, breakthroughs have been made in long-stalled fields such as the southern margin of Junggar Basin and the piedmont zone of southwestern Tarim Basin. In addition, breakthrough progress has been made in oil and gas geological theories in aspects such as marine carbonate rocks, lithologic–stratigraphic traps in continental lake basin, and coal measure whole petroleum system. Furthermore, key engineering technologies have been developed, represented by 3D seismic imaging in “double high” and “double complex” areas, efficient well drilling and completion in deep to ultra-deep formations, and geology and engineering integrated fracturing for deep coal rock gas. In response to the new situation of oil and gas exploration at home and abroad during the 15^th Five–Year Plan period and resource endowment in China, PetroChina will adhere to efficient exploration, strengthen risk exploration in key zones in the five major fields, actively prepare for strategic replacement areas and major replacement fields, focus on centralized exploration in “10 oil and 10 gas” exploration fields, and promote continuous large-scale reserve growth of conventional oil and gas and rapid development of unconventional resources, so as to consolidate the resource foundation for high-quality development.

Key words: PetroChina, the 14^th Five–Year Plan, major exploration progress, marine carbonate rocks, coal rock gas, future prospects in the
15^th Five–Year Plan period