Khawar Ali took a 4-wicket haul and scored an unbeaten 38 against Bahrain.
Aqib Ilyas became the first Oman cricketer to score an ODI century with his 109* against Nepal.
Karan KC has picked 4-wicket hauls in both matches in this tournament.
Timil Patel picked up a 5-wicket haul in the warm-up match on Tuesday.
Aqib Ilyas scored 593 runs and claimed six wickets across 17 List A matches for Oman.
Al Balushi has 14 days from 23 January 2020 to respond to the charges.
Oman skipper Zeeshan Maqsood took 4-fer against UAE on Sunday.
Mohammad Usman had scores of 56*, 0 and 36* during the UAE tri-series last month.
Jatinder Singh is averaging over 200 in this tournament.
Jatinder Singh scored an unbeaten century in the first match.