Frozen pork bellies:  

CME (Chicago Mercantile Exchange)

  Live cattle:   

Feeder cattle - CME (Chicago Mercantile Exchange)
Live cattle - CME (Chicago Mercantile Exchange)
Stocker cattle - CME (Chicago Mercantile Exchange)
Live cattle - MIDA (Mid-American Commodity Exchange)

 Lean hogs (pigs):  

Lean hogs - CME (Chicago Mercantile Exchange)
E-mini lean hogs - CME (Chicago Mercantile Exchange)
Lean hogs - MIDA (Mid-American Commodity Exchange)

  Butter:  

Grade AA - CME (Chicago Mercantile Exchange)

  Milk:  

Class IV milk - CME (Chicago Mercantile Exchange)
Milk - CME (Chicago Mercantile Exchange)
BFP large milk - NYBT (New York Board of Trade)
BFP milk - NYBT (New York Board of Trade)

  Wool:  

Broad - Sydney (Sydney Futures Exchange)
Fine - Sydney (Sydney Futures Exchange)
Greasy - Sydney (Sydney Futures Exchange)