Colorado Attorney General Cynthia Coffman on Thursday asked the Colorado Supreme Court to decide whether state officials should halt new permits for oil and gas wells until an independent third party proves that drilling can be done safely.

In doing so, Coffman moved in defiance of a request by Gov. John Hickenlooper’s office that the state not seek the court’s review of a split, 2-1, March 23 decision by the Colorado Court of Appeals, according to a letter Coffman sent to the governor Thursday.

The Colorado Oil and Gas Conservation Commission (COGCC) voted unanimously on May 1 to appeal the decision to the state’s highest court. The court isn't expected to indicate whether it will accept the case for review for several months.

Coffman, in her letter, said that Hickenlooper’s request that the AG’s office “not proceed” with the case “conflicts with an official decision of the Commission, which you do not have authority to countermand.”

Read more at Denver Business Journal.