The Colorado Department of Natural Resources says the timing of what they’re referring to as an “overpressuring event involving an empty oil storage tank” might correspond with the loud boom that scores of people in Lochbuie said they heard Monday night.

According to a news release, the Colorado Oil and Gas Conservation received a report of the incident from the operator, Ward Petroleum, on Wednesday.

It occurred at around 9 p.m. Monday at a facility near Lochbuie, and the COGCC says the “overpressuring event” forced the lid off the storage tank –resulting in a loud noise that was likely the cause of the once-mysterious boom that was heard for miles.

RELATED: Mysterious 'loud boom' baffles Lochbuie police

No one was injured and there was no fire, explosion or spill, according to the COGCC.

The COGCC is investigating the event and is trying to learn more about how and why the loud boom happened.

RELATED: We still don't know what caused that loud boom in Lochbuie

The mysterious noise baffled police and firefighters in Lochbuie on Monday night – and even prompted firefighters to respond to one home.

A USGS geophysicist told 9NEWS that a seismograph station at the Rocky Mountain Arsenal recorded a “signal” at the same time of the loud boom.

Lochbuie is a town of fewer than 5,000 people located northeast of Brighton in Weld and Adams Counties.