The Saudis are probably wondering why they did not think of that

Fuel Fix:
Want a good investment? Try sand
Fracking sand is making the shale revolution possible.
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Drillers shoot millions of gallons of water into horizontal wells to fracture the rock and free the hydrocarbons. To keep those fractures open, they add “proppant” — sand. The industry has already engaged in serious debate about what kind of sand works best, and in serious fights for control of sand mines.

Now analysts at the investment firm Tudor Pickering Holt say they are “increasingly convinced” that U.S. drillers are going to use more sand in the near future … a lot more sand.
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Producers are finding that the more sand they use the more oil they recover from the well.

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