Request for information on credit allocations of methane emissions from mining

Details of the request

Have the coal mining companies currently operating projects in NZ had to measure, report and ( promise to ? ) pay for methane emissions arising from underground and open cast mining ?

The Coalition Government postponed agriculture-based methane from schemes for reducing or offsetting those emissions. 

Is the coal mining lobby in a “protected” space with an exemption from inclusion in climate gas reporting?

Or have their emissions been measured and reported, and free allocations been granted?

Do the West Coast and Waikato coal mines have any methane abatement systems at the mine heads?

Growth in Australian open-cut coalmining raises urgency of methane abatement

I am a Senior Citizen, now retired from work in business consulting. 

I am committed to doing what I can to combat mis-information and raise awareness of the Climate crisis.

I have a keen interest in the targets for emission reductions by 2030.

After hearing the sales pitches from Minister Shane Jones on opening up NZ to mining via the Fast Track Approvals Bill,

I realised nothing has emerged from Jones’ blandishments to outline the cause and effect of coal mining in the emissions scenarios for New Zealand.

I would be grateful if you could point me to recent publications or the names of researchers for further information.