A renewed downturn in oil prices is sparking pessimism among traders. In recent weeks speculators have taken the most bearish position on oil in years.
Russia is facing a mounting fiscal crisis as the combination of low oil prices and western sanctions continue to take their toll.
Cuba is in the process of opening up its economy to foreign investment, a process that could accelerate following the recent thaw in relations between Havana and Washington.
After decades of strong financial numbers and dominance in the electric power sector, US coal producers are starting to fall apart faster than anyone could have anticipated.
With a nuclear deal in hand, it's not just oil that Iranians can offer. The country has the second biggest natural gas reserves in the world.
Mexico's first private oil bidding did not pan out as those eager to invest had hoped, write Jeremy Martin and Alexis Arthur of the Institute of the Americas. But the uninspiring results are only the beginning, not the end, of Mexico's historic energy reform.
The future of US energy is looking like it will rely heavily on renewable sources. The more difficult question is when, and at what rate, that future will arrive.
Greece is turning to offshore oil and gas as a potential source of revenue, despite having almost no existing oil and gas production to begin with.