Knoema数据库中关于趋势行业，政治和社会经济主题的快速数据摘要和可视化。Chile's Socio-Economic Disparities Exposed by Weeks of Protests The Pressure of Low and Negative Interest Rates China Trade Data | Latest Official Statistics 了解更多
Proved energy reserves are estimated quantities of energy sources that analysis of geologic and engineering data demonstrates with reasonable certainty are recoverable under existing economic and operating conditions. The location, quantity, and grade of the energy source are usually considered to be well established in such reserves. This term is equivalent to "Measured reserves" as defined in the resource/reserve classification contained in the U.S. Geological Survey Circular 831, 1980. Measured and indicated reserves, when combined, constitute demonstrated reserves.
The Energy Data Brief offers key statistics designed to help energy market watchers anticipate and respond to developments in the energy sector as well as changes in related industries and investments.