[Zhang Fei]

That was to drill a new well. For wells already in operations producing oil, the average is $15 a barrel before they operating cost would match selling price.

Given that they also need to keep servicing their debt to keep operating, my guess is that their uncle point is somewhat above $15, depending on their indebtedness.

[thackney]

Given that they also need to keep servicing their debt

Financing costs will vary greatly. Some have no debt at all because they have rode this roller coaster before.

But if a company cannot make their payments, the wells are going to be sold to someone else that took more care with their finances. The well is not going to stop flowing if it makes more dollars than it costs to operate.