azle, texas, is not the only place.ern texas, laredo, corpus christi, companies are fracking and dealing with the wastewater from fracking and shipping fossil fuels to the market. it's called the eagle ford shale. the eagle ford shale play. you can see here the wells in just one county in the eagle ford shale. in this part of southern texas, people who live next to the stuff say they are concerned about most is not necessarily earthquakes or, say, fears that their tap water might turn flammable as we've seen in other states with lots of fracking, what people in that part of texas are saying is the entire enterprise of getting this stuff out of the ground and ready for sale may be creating air pollution that they have not seen before. texas energy executives say their industry follows the rules. texas regulators say they say, quote, overall shale play activity does not significantly impact air quality or pose a threat to human health. but people in that part of texas have filed nearly 300 complaints about oil and gas dri