Although the gas and oil fracking industry does reveal general chemical ingredients on a public registry site, fracfocus.org, that appears to be industry-friendly, the industry reserves the right to keep exact recipes on specific wells undisclosed to protect "trade secrets."

This is the same claim that Monsanto uses to hide the exact ingredients in their herbicide Roundup, thus prohibiting specific analysis from being done by outside sources. And the industry continually uses government to enforce their demands with enforceable laws.