Several Arkansas batteries served primarly in the Western Theater of the war, but east of the Mississippi River, those units are:
1st Arkansas Light Artillery, River's Battery
2nd Arkansas Light Artillery, Clark County Artillery, Wiggin's Battery
3rd Arkansas Light Artillery, Jackson Light Artillery, McCown's Battery, Thrall’s Battery
Moticello Artillery, Drew Light Artillery, Owen's Battery
Helena Artillery, Clarkson's Battery, Key's Battery
Battery A, 1st Tennessee Artillery Battalion (Primarily Arkansas Troops)
The Arkansas artillery units that served primarily in the Department of the Trans-Mississippi are:
1st Arkansas Field Battery, McNally's Battery
2nd Arkansas Field Battery, Dallas Artillery, Hart's Battery
3rd Arkansas Field Battery, Pulaski Light Artillery, Marshall's Battery
4th Arkansas Field Battery, Desha County Artillery, West's Battery
5th Arkansas Field Battery, Arkansas Appeal Battery
6th Arkansas Field Battery, Washington Artillery, Etter's Battery
7th Arkansas Field Battery, Blocher’s Battery, Zimmerman's Battery
8th Arkansas Field Battery, Hughey's Battery
Pine Bluff Artillery, Steck’s Battery
Fort Smith Artillery, Ried's Battery