/biz/ - Business & Finance

>https://www.businessinsider.com/frac-sand-one-reason-us-oil-production-not-increasing-2022-3

>https://www.reuters.com/business/energy/oil-prices-soar-us-drillers-scramble-find-sand-fracking-2022-02-15/
From the article just above
>The sand market is so tight Oestmann said, because fewer people have been working in the mines and there has been a shortage of truck drivers. He said his company is looking to bring sand in by rail, a sourcing method that fell out of fashion following the advent of local mines a few years ago.

>"The railed sand depots were busy," said Richard Spears, vice president of oilfield consultancy Spears & Associates, of a recent trip to west Texas. "When that source is kicking in at high volume, and the local mine is full out, you know you've got a challenge."

>Much of the sand being railed in is coming from Wisconsin, according to Rystad.