LINCOLN, Neb. (AP) — An effort to impose new regulations on Nebraska’s oil and gas industry is drawing support from environmental advocates but opposition from company officials, who say the proposals are unnecessary and redundant.

The bills presented to a legislative committee on Wednesday were introduced following public complaints about a Colorado energy company’s plan to discard oil and natural gas wastewater underground in northwest Nebraska.

One measure would require companies to carry at least $1 million in liability insurance for injection and disposal wells and at least $5 million for any site that disposes of more than 500 barrels of wastewater a day.

A second bill would require disclosure of a well’s location to nearby local governments and periodic testing at each site, among other requirements.