Reporting Highlights

Under Pressure: Oil companies have polluted groundwater and the environment by injecting oil field waste deep into the earth at pressures high enough to violate Oklahoma law.

Warnings From Within: For years, people working for the state agency charged with regulating Oklahoma’s oil and gas industry have warned about the dangers of high-pressure injection.

Light Regulation: The regulatory agency says it prefers “to lead with a handshake instead of a hammer” and has not fined any company for wastewater leaks in the last five years.

These highlights were written by the reporters and editors who worked on this story.