Merchants (Oblivion)

Merchants buy and sell things. They can be found in shops (for example in the Market District of the Imperial City). Some will trade with you only if you are in their guild. Merchants have a limit of how much they can spend in one transaction, though you can sell items to them over and over again, as they never run out of money.
 * For a list of merchants who sell spells, see spell merchant.

Imperial City
Imperial City Market District

Imperial City, Talos Plaza District

Arcane University

Imperial City Elven Gardens District

Imperial City Waterfront

Temple District

Etc.
 * Just outside city walls c.100m N of Chesnut Handy Stables, Proprietor: Shady Sam - Poisons, Potions, Lockpicks, 400g