You Do Need power plug adapter while traveling from Oman to Dominican Republic.

Here is Why You Need An Adapter

The outlet and plug type used in Dominican Republic are A, B and C and in Oman is G. This is how they look like.

In Oman, outlets of type G are in use.

Type G

In Dominican Republic, outlets of type A, B and C are in use.

Type A

Type B

Type C

I am from

going to