The Department of Energy has a vast array of information on international markets. 

Data

International Petroleum Statistics Report

Chronologies
This is the place to settle that argument about who started the deregulation of oil prices or just keep up to date.

Chronology of World Oil Markets: 1970-1998
World Monthly Energy Chronology - 1998
World Monthly Energy Chronology - 1999

Country and Region Analysis
Country Analysis Briefs - Detailed reports on almost every country.
OPEC Fact Sheet
OPEC Revenues Fact Sheet
Non-OPEC Fact Sheet
Russia: Energy Situation Update 
East Asia: The Energy Situation
World Oil "Potential Hot Spots"
World Energy Sanctions

Overview
International Energy Annual
International Energy Outlook
Impacts of the Kyoto Protocol on U.S. Energy Markets and Economic Activity