Helge Lund, CEO of Statoil, says despite the tensions between Ukraine and Russia and concern over energy supply, European gas looks credible in the long-term.
Moscow's decision to cut off Ukraine's gas supply is a "demonstration of power," says Robert McFarlane, Co-Founder, United States Energy Security Council.
Russian deputy Prime Minister Arkady Dvorkovich slams sanctions imposed on the country as "stupid" and says the country is open for investment and trade.
The State Department confirmed that Russia has sent tanks and other heavy weapons to separatists in Ukraine. NYT reports.
The Ukrainian prime minister ordered the energy sector to prepare for Russian gas cuts after Moscow and Kiev failed to resolve a gas price conflict.
Ukraine accused Russia of allowing three tanks and other military vehicles to cross into Ukraine to help pro-Russian separatists.
Here's what Obama's critics get wrong — and the risk they pose for the next president, says Harvard Professor Joseph Nye.
Western officials hope that informal contacts between Putin and Poroshenko during the event can help ease tensions over Ukraine's future.
Hollande will meet Obama in a restaurant overlooking the iconic Champs-Elysees before going back to his residence for a supper with Putin.
In a joint press conference with British Prime Minister David Cameron, President Obama announces the G-7 nations stand united in support of Ukraine.
Ukraine doesn't like being dependent on Russia for much of its energy, but it may have no choice for now.
Angela Merkel has asked France whether it would be willing to put forward Christine Lagarde as president of the European Commission, two sources said.
The world's leading industrialized nations meet without Russia for the first time in 17 years on Wednesday.
Alastair Newton, Senior Political Analyst at Nomura, says signs of compromise over unpaid gas debts between Russia's Gazprom and Ukraine's Naftogaz has defused tensions in eastern Europe.
Brian Singer, head of dynamic allocation strategies team at William Blair & Co., discusses how geopolitical events influence markets and explains why the current environment is supportive of Spanish and Italian equities.
Russia has called an emergency meeting of the U.N. Security Council to introduce a resolution calling for an immediate cease-fire in Ukraine.
The slow recovery and wealth inequality are fueling political and religious extremism and, in some cases, outright terrorism, says Nouriel Roubini.
Jesse Sherman, portfolio manager at Renaissance Asset Management, says Russia will tread a fine line on the political front.
The latest CNBC Global CFO Council survey shows that corporate tax reform is a must, but there is little chance that change will come soon.
Helima Croft, Barclays managing director, discusses how sanctions by the West have impacted Russia and Ukraine. And Walter Isaacson, The Aspen Institute, weighs in on Putin's role in controlling the oil there.