With less than four weeks until its deal for Russian natural gas imports ends, Ukraine risks losing its current discount unless it can agree a new pact, something that took six months and help from the European Commission to achieve last time.

• March 5, 2015

Russia rebuffed Ukrainian accusations it was holding back on gas deliveries and warned that Kiev's credit would run out this week as the two sides sat down on Monday for EU-mediated energy talks in Brussels.

• March 2, 2015

U.S. Secretary of State John Kerry pressed the case on Sunday for completing nuclear diplomacy with Iran despite Israeli opposition, saying the United States deserves the benefit of the doubt on getting a deal that would prevent any need for military action to curb Tehran's atomic ambitions.

• March 1, 2015

Ukraine has sent a small prepayment of $15 million to Russia for March natural gas deliveries, energy officials from the two sides said on Friday, after Moscow threatened to cut off supply.

• February 27, 2015

A bomb exploded at an oil pipeline from Libya's El Sarir field on Saturday, halting flows to Hariga port as the country struggles to restore crude exports battered by factional fighting.

• February 14, 2015

Rosneft is raising money from Swiss trader Trafigura days before it must repay a $7 billion debt, industry sources said, seeking new funding options after the Russian central bank said its borrowing via the domestic bond market had added to pressure on the struggling rouble.

• February 4, 2015

Russia's top oil producer Rosneft is basing its budget for this year on an average oil price of $50 per barrel, the company's Chief Executive Officer Igor Sechin said on Wednesday.

• February 4, 2015

BP said it would deepen capital investment cuts this year to adapt to lower oil prices after a surprise contribution from its stake in Russia's firm Rosneft helped it to beat quarterly profit forecasts.

• February 3, 2015