X0303 4 2010-01-22 0 0001336047 Boardwalk Pipeline Partners, LP BWP 0001343049 Gafvert Rolf A 9 GREENWAY PLAZA, SUITE 2800 HOUSTON TX 77046 1 1 0 0 President and CEO BWP (Common Units) 2010-01-22 4 M 0 6479 A 6479 D BWP (Common Units) 2010-01-22 4 D 0 3213 29.49 D 3266 D BWP (Common Units) 2010-01-22 4 D 0 3266 29.39 D 0 D Phantom Units 2010-01-22 4 M 0 6479 D 2010-01-22 2010-01-22 Common Units 6479 0 D Each share of phantom units is the economic equivalent of one share of BWP common units. The reporting person settled his shares of phantom units for cash. /s/ Rolf A. Gafvert 2010-01-22