ANADARKO PETE CORP COM 032511107 1864720 22000 SH SOLE 22000 0 0 BERKSHIRE HATHAWAY INC DEL CL B NEW 084670702 163673209 1309700 SH SOLE 1309700 0 0 EL PASO PIPELINE PARTNERS L COM UNIT LPI 283702108 607800 20000 SH SOLE 20000 0 0 ENBRIDGE ENERGY PARTNERS L P COM 29250R106 1918700 70000 SH SOLE 70000 0 0 ENTERPRISE PRODS PARTNERS LP COM 293792107 6006576 86600 SH SOLE 86600 0 0 LEVEL 3 COMMUNICATIONS INC COM NEW 52729N308 5218693 133334 SH SOLE 133334 0 0 PLAINS ALL AMERN PIPELINE LP UNIT LTD PARTN 726503105 62112964 1126868 SH SOLE 1126868 0 0 TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 3319340 59000 SH SOLE 59000 0 0 US BANCORP DEL COM NEW 902973304 60432600 1410000 SH SOLE 1410000 0 0 WILLIAMS PARTNERS L P COM UNIT L P 96950F104 1197090 3133 SH SOLE 3133 0 0