BOARDWALK PIPELINE PARTNERS

CUSIP: 096627104 Class: UT LTD PARTNER

TORTOISE CAPITAL ADVISORS, L.L.C.'s Holding History (CIK: 0001280965)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 6,614,300 Value ($000) $168,797 Avg Close — Range —
Q3 2013
Shares 8,010,500 Value ($000) $243,279 Avg Close — Range —
Q2 2013
Shares 7,996,712 Value ($000) $241,501 Avg Close — Range —