The largest earthquakes in the recent spree caused by the injection of wastewater in deep disposal wells in Oklahoma have been far smaller than the disasters in, for example, Chile. But buildings have sustained damage nonetheless. That damage has to be repaired, and repairs cost money. Insurance companies have been tapped to pay out while state regulators have been pressured to prevent future earthquakes. A few residents have gone another route—suing the companies operating the injection wells.

On Friday, resident of Pawnee, Oklahoma, filed a class action lawsuit against 27 energy companies, the Associated Press reported. Pawnee experienced the largest Oklahoma earthquake so far—a magnitude 5.8 quake in September. The attorney filing the lawsuit claims that hundreds of homes suffered some degree of damage, and the properties have lost value as a result of all this seismic activity.

This is actually not the first lawsuit filed in Oklahoma. One suit filed by a resident of Prague, Oklahoma, was dismissed by a District Court before being restored by the Oklahoma Supreme Court. Another suit involving Prague residents is in process as well. And the Sierra Club has filed a federal lawsuit aiming to halt wastewater injection in the state.

The most recent significant earthquake was just over a week ago in the town of Cushing. The magnitude 5.0 quake caused enough damage to buildings that the downtown area was cordoned off for several days.