If the Saudi's say they can reach 12 million bpd, they probably can but there is no gain for them, they can wait for higher prices.
Whatever gave you the idea that the Saudis "probably" are telling the truth. Occasionally they do tell the truth but it is usually a slip of the tongue when they do. On the second page of this article they make such a slip:
From the
New York Timeshttp://www.nytimes.com/2012/08/17/business/energy-environment/us-reliance-on-saudi-oil-is-growing-again.html?_r=1“This is strictly, totally business,” said Sadad Al Husseini, a former executive at Saudi Aramco, the state oil company. “Saudi production is flat out. Where you send it is a matter of where you make the best profit.”
That was a year and a half ago. Saudi was producing flat out then and they are today. Their old super-giant fields are in steep decline but they have managed to keep production up by bringing one new field, Shaybah, and two old mothballed fields, Khurais and Manifa. And they are trying desperately to squeeze more oil out of Ghawar:
Saudi Aramco to use CO2 to boost Ghawar oil field output by 2013http://www.arabianbusiness.com/saudi-aramco-use-co2-boost-ghawar-oil-field-output-by-2013-383900.htmlSaudi Aramco plans to start by 2013 injecting carbon dioxide to boost production at its Ghawar oil field, the world’s largest, the company said.
And if that plan fails they have a back-up plan:
Aramco boosts drilling in seismically tough Red Seahttp://gulfnews.com/business/oil-gas/aramco-boosts-drilling-in-seismically-tough-red-sea-1.537285Aramco is seeking reserves in anticipation of global economic growth and increasing demand for oil. The Red Sea is two kilometres deep in places with a 7,000-foot thick salt sequence which can distort seismic images, according to the magazine.
They are looking for more oil under two kilometers of water and 7,000 feet of salt. That has to be extremely expensive. Sounds to me like they are getting desperate.