The base you conceive already exists in Afghanistan and in Saudi Arabia.
Flight time from the Saudi border to the major Iranian oil port and refinery at Bandar Shapur (Hussani) is about 15 minutes
Again, your aim is wrong. It is NOT a matter of being able to bomb Iranian oil ports. That is not the kind of conflict Iran will mount and not the kind of responses we will need to make. We need our close-in forces out of anything covered by the Baghdad area, where Iran will continue to have plenty of proxy forces in the Iraqi Shia militias they support. We can do that from Iraqi Kurdistan, where our forces cannot be attacked by the Shia militias, because the Kurds won’t let them in there.