This is likely to affect the outlook for exports. "None of the export potential can not be realized until the numbers do not match," said energy expert Daniel Ng of Phillip Futures.

No significant decrease in yield chronic oversupply problem will be solved and will push down prices next year, he said. This development will be supported by the introduction in the coming months on the market and the Iranian oil. For months, the oil cartel OPEC pours cheap oil markets to cause headaches for US shale producers. Now, however, this boomerang at him, explains Eng.

Some analysts, however, see the parity between the two most important varieties of oil signal recovery in prices. Mining companies in the US will probably reduce production, while demand may remain strong.

National output in the US declined steadily since reaching a peak in June. In October 2011, the price differential between WTI and Brenta was 28 dollars. Now achieved parity of both varieties may represent a turning point because it alludes to a falling US production analyst Francisco Blench from Bank of America-Merrill Lynch. "This is the first sign of rebalancing," he says.

However, many experts do not believe in a steady recovery in prices. "It's not that US oil climbed to the price of the Brenta. Rather Brent fell to the price level of WTI ", said market strategist Todd Gross of Qeri.