John Barrasso actually said...

Do you believe it is easier or more difficult to cut off this, in terms of natural gas versus oil?

You state more needs to be done. You explain that strikes on oil infrastructure need to be comprehensive not limited.

we have to acknowledge that U.S. and coalition efforts to date have, at most, limited success in actually reducing ISIS oil revenues.

There should be no part of ISIS oil enterprise where people feel safe to work.