First, some oil shipments were sent by sea to Jordan.Hussein's illicit oil sales detailed
Second, most of the oil shipped to Turkey was through an existing pipeline, which could have been severed by air power.
Finally, you keep dancing around the subject. The US did not want to stop these shipments as a matter of offical policy. We knew they were going on and I can say that from firsthand knowledge. I don't have a problem with our policy, but to make up some cock and bull story as to why we didn't take any action is just false. We didn't cut our aid to Jordan and Turkey for breaking the sanctions.
"Placke said most of the oil was trucked across the Iraqi border to Jordan's refinery in Zarqa, about 30 miles north of Amman. But several weeks before the United States invaded Iraq in March 2003, Jordan began loading massive quantities of oil from Khor al-Amaya. "They could see they were likely to get caught in an oil squeeze," Placke said."
Notice that the vast majority was done by land?
In fact, the only oil smuggling that you have cited that involved shipping via sea to Iraq was one month before we went to war. In that case, we may have not known where the shipment was going, but were not going to be decoyed away.
Either way, the majority of the smuggling took place over land and we did not have any interdiction forces in place to stop it, regardless of what our policy was then or before.