[spokeshave]

Ha...they all missed the boat....

GASFRAC baby...existing technology and implemented on a number of wells.

[thackney]

Gas fracturing also requires proppant, regarless if made from sand, resin-coated sand or ceramic.

The gas would replace the water used to move the proppant, but it still requires something to hold the cracks open after the fluid is removed.

They are not competing technologies, they are complementary, or independent.