SVP- Prod.Sup,Purch.&Logistics Brinkworth Douglas exercised 15,334 units of Common Units at a strike of $17.77, returned $272,485 worth of Common Units to the company (15,334 units at $17.77), was granted 24,206 units of Common Units and covered exercise/tax liability with 15,539 units of Common Units, increasing direct ownership by 5% to 167,326 units (SEC Form 4)