U.S. shale oil producers, having weathered the worst price plunge in their industry's brief history, now face a dilemma: whether to stay in a defensive crouch after slashing their rig fleets, or start drilling more wells to capture a partial recovery in prices.

The head of an International Monetary Fund team visiting Ukraine gave a positive assessment of progress by Kiev on reform on Sunday and said there would be further discussion on loans that the near-bankrupt country badly needs.

OPEC is likely to keep its output target unchanged when it meets on Friday because the global oil market appears to be in good shape and prices are expected to firm up from current levels, a senior Gulf OPEC delegate told Reuters.

Greece and its European creditors agreed on the need to reach a cash-for-reforms deal quickly as Athens missed a self-imposed Sunday deadline for reaching an agreement to unlock aid, sources close to the talks said.

A Phase III trial of Pfizer Inc's Ibrance showed that, in combination with hormone therapy, the drug more than doubled the duration of disease control for women with the most common type of breast cancer.

Greece's government is confident of reaching a deal with its creditors this week and is open to pushing back parts of its anti-austerity program to make that happen, the country's interior minister said Saturday.

New CEO Christoph Mueller's plans for troubled Malaysia Airlines - including a new brand, a smaller fleet and one third less staff - are widely seen as a promising blueprint for a fresh start.

A trial program allowing unauthorized dealers to sell imported cars will be extended to the northern city of Tianjin, China's state media said on Sunday, as the government moves to rein in high-end car prices.

Middle East fund managers have on balance become bearish on the region's biggest stock market, Saudi Arabia, after oil's rally ran out of steam and the kingdom confirmed strict rules on foreign investment, a monthly Reuters survey shows.

Years of uncertainty and economic pain spent keeping Greece in the euro zone boils down in June to a handful of make-or-break debt repayments, while a raft of key data in the next few days will point to the progress of the global economy.