Would be interesting to see if methane gas emissions can be actually detected - of course they're not going to flare the gas when the extraction site is in a residential area, that would be too conspicuous.
Which of course also begs the question why this has to be done in a residential area. I looked at Arlington, TX on Google Maps and realized that this must be a side effect of the American sprawl: if there is oil/gas to be extracted in the area, you have to do it in a residential area, because there is no open space to be seen anywhere nearby...