Barrels of water used?

I have been unable to find an answer to the above question so I thought I would give it a try on this forum.

Can anyone provide an approximate number of barrels of water that an oil company would need for routine maintenance on the drillsite pad and is not used for fracking or other drilling and/or completion operations for one well?

Thanks for any info.

Dear Mr. Petersen,

To my knowledge, once drilling and completion operations are finished, the use of water by the operator is zero.

Best,

Buddy Cotten