Fracking does not exist because of subsidies. The concept itself existed since the 60's or so, but it never become economical until $100 oil (natural gas is also produced as a byproduct). Currently American production is declining year over year due to low prices, subsidy or not. Furthermore, one needs to separate the subsidies that go to the oil industry - not like it all goes to fracking companies.

Natural gas wouldn't just increase by 10%. That statement alone makes me not click on the article. Gas is still under half of global prices in the US (due to poor transport), despite this summer's runup. A decline in production, meaning supply balance, would wildly swing prices higher. It wasn't long ago that prices were $4-5 per mcf.