The company has voluntarily capped and abandoned all of its 1-inch flowlines on vertical wells in the Weld County area.
The figures come from energy company reports ordered by the state after a fatal house explosion in Weld County was blamed on a severed gas line.
Cities along the Front Range are growing rapidly and the state’s 54,332 oil and gas wells aren't going anywhere.
A tank explosion happened less than 4 miles away from the Firestone neighborhood, where an April 17 explosion killed two people.
Anadarko believes the wells are safe but is shutting them down because of the "special circumstances and sensitivity surrounding this equipment."
If a flowline isn’t regularly tested and properly abandoned, it can cause problems.
Spokesman Brian Cain said Extraction Oil & Gas always planned to build a pipeline. Neighbors dispute that account.
The deadly accident in April is leading to a discussion about whether houses should be built farther away from existing oil and gas wells.
The state's oil and gas regulators are involved in the investigation because there was an active vertical well less than 200 feet from the home.
Weld County discovered the forgery when Curtis’ ex-wife called the county after she moved to South Carolina to get information on voting.