No Oath!!!
you are right - there was no oath. Recall from another hearing when they said their rules stated that if it is considered an “oversight” hearing, there is an oath. It is possible that each committee has different rules. ??
If you lose c-span or if you want to see another perspective the link below is on a few seconds delay up to about a minute (in case you want to hear an answer again)
http://www.finance.senate.gov/hearings/hearing/?id=3dd91089-5056-a032-5290-f158359b9247