like Piedmont Natural Gas, to adjust rates on an annual basis. The utility estimates the fuel cost and then works with state regulators to tweak that rate periodically during the year. The same ...

South Dakota regulators approved a 7% increase in NorthWestern Energy's natural gas rates. (Photo by Getty Images) State regulators approved a settlement Tuesday in Pierre reducing NorthWestern ...

As President-elect Donald Trump extolled the virtues of natural ... since 2018. Regulators have 11 months to review the new proposal, which, if approved, would be the largest gas rate increase ...

South Dakota regulators approved a 7% increase in NorthWestern Energy's natural gas rates. (Photo by Getty Images) State regulators approved a settlement Tuesday in Pierre reducing NorthWestern Energy ...