By | April 26 2012 5:10 PM

The Marcellus Shale Coalition, a trade group of oil and gas companies, released Thursday operational suggestions it hopes will standardize how the oil and natural gas industry approaches future drilling operations. The suggestions come as the industry seeks to tap the vast resources of the Marcellus Shale, which stretches from Ohio to New York state, using means that include the controversial practice known as fracking.