Hydraulic fracturing case to be heard by the Wyoming Supreme Court

The Wyoming Supreme Court will hear arguments next month over whether the public has the right to obtain lists of chemicals used in the process of hydraulic fracturing.
 
     Environmental groups are suing to see the lists that companies have submitted to state regulators. The groups say they have a right to see the information under Wyoming's public records law.
 
     Attorneys for Wyoming and Halliburton Energy Services say the chemicals are shielded from public disclosure because they're protected trade secrets.
 
     The supreme court is scheduled to hear oral arguments in the case Nov. 20.
 
     Fracking boosts production of oil and gas wells by pumping pressurized water, sand and chemicals into the wells to create underground fractures.
 
     A district court judge in March sided with state regulators and ruled against the environmentalists.