0001193125-12-034450 8-K 4 20120130 1.01 9.01 20120201 20120201 NuStar Energy L.P. 0001110805 4610 742956831 DE 1231 8-K 34 001-16417 12562942 2330 NORTH LOOP 1604 WEST SAN ANTONIO TX 78248 2109182000 2330 NORTH LOOP 1604 WEST SAN ANTONIO TX 78248 VALERO L P 20020110 SHAMROCK LOGISTICS LP 20000331 8-K 1 d292557d8k.htm FORM 8-K EX-1.1 2 d292557dex11.htm UNDERWRITING AGREEMENT, DATED JANUARY 30, 2012 EX-5.1 3 d292557dex51.htm OPINION OF ANDREWS KURTH LLP GRAPHIC 4 g292557g68b89.jpg GRAPHIC