Proven reserves (also called measured reserves, 1P, and reserves) is a measure of fossil fuel energy reserves, such as oil and gas reserves and coal reserves...

Proven oil reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be estimated, with a high degree of confidence...

estimating Proven reserves. Though not classified as contingent, some technical, contractual, or regulatory uncertainties preclude such reserves being classified...

proven gas reserves were dominated by three countries: Iran, Russia, and Qatar. There is some disagreement on which country has the largest proven gas...

The proven oil reserves in Venezuela are recognized as the largest in the world, totaling 300 billion barrels (4.8×1010 m3) as of 1 January 2014. The...

increased their proven reserves to 297 Gbbl in January 2011. The Saudi reserves are about one-fifth of the world's total conventional oil reserves. A large fraction...

The reserve list specifies different types of coal and includes countries with at least 0.1% share of the estimated world's proven reserves of coal. All...

been widely varying estimates of proven oil reserves in Russia. Most estimates included only Western Siberian reserves, which have been exploited since...

(USGS) in 1995 estimated proven reserves were 78 Gbbl (12.4×10^9 m3). Iraq's prewar deputy oil minister said that potential reserves might be 300 Gbbl (48×10^9 m3)...

Moncorvo mines have proven and probable reserves of 558 million tons, with an additional 254 million tons of possible reserves. The reserves of the Moncorvo...