SVP- Prod.Sup,Purch.&Logistics Brinkworth Douglas returned $440,678 worth of Common Units to the company (23,403 units at $18.83), was granted 24,112 units of Common Units, covered exercise/tax liability with 11,998 units of Common Units and exercised 23,403 units of Common Units at a strike of $18.83, increasing direct ownership by 8% to 171,469 units (SEC Form 4)