The Wyoming Supreme Court heard a case Wednesday challenging the state’s process for exempting fracking chemicals from public disclosure. Wyoming was the first state in the nation to adopt a disclosure law, but it included what some say is a massive loophole: companies can petition for what’s called a trade secret exemption. They’ve done that more than a hundred times since the law went into effect in 2010.
The oil and gas industry is trying to ease environmental concerns by developing nontoxic fluids for hydraulic fracturing.
But it's not clear whether the fluids will be widely embraced by drilling companies.
Fracking has made it possible to tap into energy reserves across the nation but also has raised concerns about pollution, since large volumes of water along with sand and hazardous chemicals are injected underground to free the oil and gas from rock.