The officials declined to identify which countries made the offers, but said they were under consideration as the US begins to identify roles in its coalition against fighters who control parts of Iraq and Syria.
"I don't want to leave you with the impression that these Arab members haven't offered to do air strikes because several of them have," a senior US State Department official said in Paris.
The officials who would not be named, added that the offers were not limited to targets in Iraq. US President Barack Obama last week said that the US would widen its campaign, which has been restricted to Iraq.
On Thursday US Secretary of State John Kerry won backing for a "coordinated military campaign" from 10 Arab countries including, Egypt, Iraq, Jordan, Lebanon, and six Persian Gulf states including Saudi Arabia and Qatar.
So far, France has been the only country to publicly offer to join US air attacks on ISIL targets, although it has said its involvement would be limited to Iraq, Reuters reported.
The US comments come a day after the ISIL group stirred fresh outrage with release of a video of the beheading of British aid worker David Haines.
British Prime Minister David Cameron called it "a despicable and appalling murder", and vowed to bring the killers to justice.
Participants of the US coalition against the fighters will meet for talks on Iraq in Paris on Monday.