What other shales produce revenues?
Most shales are gas plays, and some are very rich. The Barnett Shale of north central Texas is one of the richest, netting lease prices of up to $10,000 per acre and 1/4 royalties. These rates are possible because the Barnett and other shales are often remarkably predictable, and instead of a minority of wells producing, only a minority of wells fail over the shale. Traditional drilling shoots for much less predictable traps and structures. The TMS is, as tested, an oil producing shale as opposed to a gas producing shale. The Bakken Shale of South Dakota and Montana is a successfully developed oil producing shale.
