The Government has just set best-practice guidelines for fracking in various parts of the country.
But the Greens have said the timing of its release shows disrespect to Parliamentary Commissioner for the Environment Jan Wright who is due to release her final report on fracking in two months.
And MP Gareth Hughes said the Government should be developing statutory standards, not just guidelines.
Environment Minister Amy Adams said the guidelines clarified the regulatory roles of central and local government relating to fracking and gave guidance to local government to manage activity under the Resource Management Act 1991.
The guidelines covered the lifecycle of onshore petroleum wells from initial seismic surveying to decommissioning.