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.
An April 17 home explosion in Firestone has renewed attention to the friction between expanding urban areas and oil and gas development.
The deadly accident in April is leading to a discussion about whether houses should be built farther away from existing oil and gas wells.
Oil and gas operators must inspect existing oil and gas flowlines within 1,000 feet of occupied buildings within 30 days.
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.