Oman is an Arab state with which Israel has no diplomatic ties.
The minister's comments followed a rare visit to Oman by Israeli Prime Minister Benjamin Netanyahu, which came days after Palestinian President Mahmoud Abbas paid a three-day visit to the Gulf country.
Saudi Crown Prince Mohammed bin Salman called Iran's leader "the new Hitler of the Middle East", while Netanyahu said previous year that both Iran and Nazi Germany share in common, "a ruthless commitment to impose tyranny and terror" as well as "a ruthless commitment to murder Jews".
Israeli Prime Minister Benjamin Netanyahu arrived in Oman on Thursday to discuss ways of achieving "peace and stability". "The Palestinians are taking a strong position against the Trump administration and Netanyahu and yet they have to talk to the Israelis".
Netanyahu was joined by his wife Sara, the head of Israel's intelligence agency, his national security adviser, his foreign ministry director and other officials.
Palestinians have been boycotting the Trump administration since it made a decision to move the US Embassy to Jerusalem earlier this year.
Israeli technology and innovation, Netanyahu said, was a "boon to peace" with Arab states.
Oman has a foreign policy of non-interference and has played a mediating role in a region crisscrossed by rivalries and conflicts.
The official also said Israel could use Oman as a backchannel to both Iran and Syria. The trip to Oman, an Arab country with no formal ties to Iran, had not been announced in advance.
Oman closed the trade representative offices in October 2000 after the outbreak of the second Palestinian intifada.
Oman relies on the United States and efforts by President Donald Trump in working towards this "deal of the century" (Middle East peace), Alawi bin Abdullah told a security summit in Bahrain on Saturday, a day after Israeli Prime Minister Benjamin Netanyahu visited Oman. The visit was only made public after the Israeli delegation returned home on Friday afternoon.
In recent years, Netanyahu has insisted that relations between Israel and Gulf countries have been growing, despite none of the seven Gulf states officially recognising Israel.