The 30 days single entry visa fee is 150 USD for Brunei citizens.

You cannot get visa on arrival in Oman. You should apply for your visa online and acquire it prior to your trip to Oman.

The visa requirements are:

1. A scanned copy of your passport bio page
2. A passport-size photograph
3. Hotel or accommodation details
4. Flight booking details. Further, your passport must have at least 6 months of validity and at least 4 blank pages.

You can get your Oman visa from Brunei by applying for it online.

1. Go to Oman IE Visa
2. Select your country
3. Choose the required visa type
4. Fill in the application form and pay the visa fee
5. Track the visa status on the website and download your visa.