Del Granado caused a stir days ago when he published an article about a preliminary yet reliable report he had seen concerning a sharp drop in proven gas reserves, noting the government has been ...

Royal Dutch/Shell Group's reclassification of proven reserves downward ... its 2002 figures (see "U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 2002 Annual Report" on the ...

In 2005, Dallas-based petroleum consulting company DeGolyer & MacNaughton said Bolivia had 26.7 TCF of proven reserves and held the second-largest gas reserves in South America behind Venezuela.