Houston ? Two Enron executives received sharply reduced sentences Friday after cooperating with prosecutors to help convict the architects of the biggest scandal in U.S. corporate history.

Michael Kopper, once the top lieutenant to former Enron Chief Financial Officer Andrew Fastow, was sentenced to three years and one month in prison. An hour later, Mark Koenig, the company’s former investor relations chief, received an 18-month sentence.

The men were also fined $50,000 that will be sent to a fund for victims of Enron’s collapse, and each will be on probation for two years after they are released from prison.

Both men will remain free on bond until they have to report to prison, a process that usually takes four to six weeks.

Prosecutors had asked U.S. District Judge Ewing Werlein Jr. to cut the potential sentences because of their help.