Sandridge Energy notified shareholders Friday morning that the company is no longer under investigation by the U.S Department of Justice.

With all the earthquakes Oklahoma is experiencing, there has been a lot of talk about disposal wells and the correlation between the two. However, there are a lot of questions about what these wells are and what they do.

A state lawmaker suggested Oklahomans start pressuring their representatives to deal with earthquakes linked to disposal wells. Rep. Richard Morrissette said policymakers should do more to prevent further property damage.

State regulators announced restrictions on more disposal wells Monday, in response to the 4-plus magnitude earthquakes that rattled homes and nerves in Edmond last week.

The Oklahoma Corporation Commission, the state regulatory agency that is trying to minimize earthquakes by restricting the underground disposal of drilling wastewater, has been forced to take legal steps to get an Oklahoma company to comply with its latest directives.

A New York-based hedge fund has filed papers with federal securities regulators to remove SandRidge Energy board members and restructure the company. 

Oklahoma City-based SandRidge Energy announced Wednesday a settlement deal with TPG-Axon, one of its largest investors and loudest critics. 

SandRidge Energy announced on Monday that the company has named a new Chief Financial Officer. SandRidge Energy, Inc. appointed Eddie LeBlanc to the role of Executive Vice President and Chief Financial Officer. 

SandRidge Energy is cutting 20-percent of its corporate staff in response to low market prices and a reduction in drilling activity.