As Colorado oil and gas officials continue to resist attempts by some members of the state’s congressional delegation to pass federal law compelling the disclosure of chemicals used in hydraulic fracturing, Texas, of all places, could soon establish a national model for fracking transparency. The Associated Press is reporting a bill that would require mandatory disclosure of many of the chemicals used in the fracking process was approved by the state House on Thursday and is now being considered by the Senate. “The bill in its current form has widespread support among both Republicans and Democrats and GOP Gov.