a well is drilled into sedimentary rock, typically shale.ater, chemicals, and sand are injected at high pressure, fracturing the rock and freeing trapped oil and natural gas. the government estimates that the u.s. has 48 billion to 58 billion barrels of recoverable shale oil. that is enough to produce at current rates for at least 14 years. and those estimates are probably conservative. america has a lot of shale formation. the bakken in north dakota, the marcellus in pennsylvania and new york, the woodford in oklahoma, and in texas, the barnett, the eagle ford, and the permian basin. >> chevron's history in this basin goes back to the early 1920's. almost at the start of the basin. we are fortunate that we have been here for a long time and have been here consistently. this basin has seen a lot of ups and downs in terms of production. it had been on a gradual and kind of slow decline. and then a number in the industry recognized that unconventional development that had started in the barnett outside of fort worth and dallas could maybe be a

a recent call among slate the web site not the sedimentary rock, argues, quote, robot human marriagenot about robot rights it is about the right of human to marry a robot. researchers developed this mother robot that can create this own tiny baby robot evaluating and pick the best to live on. >> should we embrace robots as spouses and parents? is i think we should. any one who disagrees is probably a racist or robotist. here to lose this debate straight south of chapel fox news contributor and all around great by father morris. legalized same-sex marriage, why not robots? >> i feel bad for the robots they can't fend for themselves. they can't be involved in this argument. as you presented this topic i thought first of all this is the low point of my career that i am arguing about whether or not robots and humans should marry. >> that's your low point? >> yes. i am willing to go for it because it brings out the point of what is marriage. whaels amazing is society, the government has been interested in bolstering marriage. they care about kids. the government thought the best thing for