Tax promises to cripple new energy sector investment.

The Permian is back and bigger than ever.

Thinking twice about moving south of the border.

The Middle East has dominated the world of oil for half a century and as the list below shows, it remains king.

While the 2014 World Cup is going to be bigger than ever -- it's shaping up to be the most watched, most lucrative and expensive tournament in soccer history -- it's also going to be one of the biggest energy-consuming, greenhouse gas-spewing World Cups in history.

City-dwelling Chinese may still be choking on smog, but amid all the haze, China may turning a corner in its fight on pollution.

Natural gas, which is essentially methane (CH4), may burn cleaner than coal, but what happens when it isn't burned?

As the Canadian government pushes a new law rendering pipeline companies liable for all damages from leaks and spills, the only friend to both sides in this polarized world of dirty oil sands is leak prevention technology.

On June 3, Russia plans to reduce the gas supply to Ukraine — and hence, to Europe — if Kiev has failed to pay in advance for next month's gas deliveries, the price for which has been doubled as a result of the political crisis.

Grins were on the faces of China National Petroleum executives this week as they celebrated a blockbuster 30-year deal for Russian gas. For some, however, those grins could soon turn to grimaces.

Significantly, the new U.S. list does not include Alexei Miller, CEO of the Russian natural gas state monopoly, Gazprom.

As protests in Ukraine's eastern region turned violent on Sunday leading to the death of a Ukrainian security officer in a shootout with pro-Russian militia, Kiev threatens military action while Moscow flexes its geo-economic warfare muscles.