Prior to leaving for a major meeting in Poland, Netanyahu commented on the Israeli strike on Monday and stressed that Iran is the focus of the Warsaw Mideast summit.
Palestinian officials, viewing the current USA administration as having a pro-Israel bias, declined to attend the conference.
Netanyahu and the Arab officials also shared a stage during a group photo scheduled for meeting participants.
As Reuters notes, Oman, Saudi Arabia, and the United Arab Emirates all "share Israel's concerns about Iranian actions in the region and also sent envoys to [the] Warsaw [conference]".
Netanyahu expressed similar sentiments when he met earlier in the day with Omani Foreign Minister Yusuf bin Alawi bin Abdullah, telling him that the recent rapprochement between the two countries was "changing the world".
"I think that holding this conference, in which Israel, the U.S., various countries around the world and from the region sit down in one place. and discuss one topic-which, in my opinion, is the most important for our national security-is a very important achievement".
The controversy comes amid speculation about the objective of the meeting in Poland of top officials from 65 different countries-which also featured President Donald Trump's personal attorney Rudy Giuliani calling for regime change in Iran while speaking at a rally outside the summit on behalf of, as Robert Mackey of The Intercept put it, "a cult-like group of Iranian exiles who pay him to represent them".
Palestinians have been heavily critical of the conference, With officials describing the meeting as an effort by the USA to advance its anti-Palestinian positions. "This is a new era for the future, and for prosperity for all the nations".
Netanyahu is one of the highest-ranking officials in attendance at the summit, alongside foreign ministers and officials from 60 other countries.
During the conference US President Donald Trump son-in-law and adviser Jared Kushner, who has been putting final touches on a "deal of the century" for peace between Israel and the Palestinians, will make a rare speaking appearance.
Netanyahu's surprising October 26, 2018, visit to Oman marked the first time an Israeli leader publicly visited the Gulf state since 1996.
"So.we shouldn't take this to mean Bibi is sitting with foreign ministers of Arab states and drawing up plans to attack Iran", Shushan concluded.
Transatlantic cooperation was necessary to resolve problems in the Middle East, Polish Foreign Minister Jacek Czaputowicz said.