Justices heard oral arguments in the high-stakes case but did not say when they would rule.
Colorado Oil and Gas Conservation Commission
“The higher price environment may support a couple more rigs being added in Colorado during the remainder of the year,” said analyst Bernadette Johnson.
The biggest change came in February when regulators changed how flowlines are created, tested and eventually abandoned.
CPR News found a common practice designed to let oil and gas companies maintain ownership of old holdings.
Energy producers are responding to prices.
The regulations set requirements for installing, testing and shutting down flowlines, which carry oil and gas from wells to nearby equipment.
The plaintiffs want state regulators to require energy companies to show they would not harm human health or the environment before drilling.
Drilling activity doubled as the price of oil jumped last year. Along with that, there were 88 more spills of oil or water from drilling sites.
Few, if any states, map flowlines. Big energy developing states like neighboring Wyoming or Texas do not have any mapping requirement.