Getting to what's trapped inside the oil-formation class=kxInlineLink>Bakken formation is a big, expensive challenge. But as Donnell Preskey reports finding unique ways to break the oil loose could sustain the oil activity in our state for a very long time... (Donnell Preskey) Rigs drilling in the Bakken are going down about 2 miles once they get to that formation they steer through rock as thick as the state capitol building. Now engineers are challenged with the best way to unlock the oil. (Lynn Helms) you can see from the very fine, grain rock why oil is so difficult to extract. so we got 160 billion barrels of oil - trapped in pore spaces of this rock. 167 Billion barrels of oil waiting to be freed in the Bakken. But right now only 1.4% is recoverable using the current technology that's 2.1 Billion barrels. (Helms) Having an oil resource that's profitable at 1.4% recovery - meaning that 98.6% is still down there to go after. Means there's all kinds of opportunities for people...