BOARDWALK PIPELINE PARTNERS

CUSIP: 096627104 Class: UT LTD PARTNER

ALLIANCEBERNSTEIN L.P.'s Holding History (CIK: 0001109448)

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

Q3 2017
Shares 34,143 Value ($000) $502 Avg Close — Range —
Q2 2017
Shares 31,547 Value ($000) $568 Avg Close — Range —
Q1 2017
Shares 29,781 Value ($000) $545 Avg Close — Range —
Q4 2016
Shares 21,182 Value ($000) $368 Avg Close — Range —
Q3 2016
Shares 21,647 Value ($000) $371 Avg Close — Range —
Q2 2016
Shares 22,028 Value ($000) $384 Avg Close — Range —
Q1 2016
Shares 20,710 Value ($000) $305 Avg Close — Range —
Q4 2015
Shares 19,830 Value ($000) $257 Avg Close — Range —
Q3 2015
Shares 21,150 Value ($000) $249 Avg Close — Range —
Q2 2015
Shares 20,790 Value ($000) $302 Avg Close — Range —
Q1 2015
Shares 14,890 Value ($000) $240 Avg Close — Range —
Q4 2014
Shares 15,270 Value ($000) $271 Avg Close — Range —
Q3 2014
Shares 9,290 Value ($000) $174 Avg Close — Range —
Q2 2014
Shares 9,290 Value ($000) $172 Avg Close — Range —
Q1 2014
Shares 9,290 Value ($000) $125 Avg Close — Range —
Q4 2013
Shares 9,290 Value ($000) $237 Avg Close — Range —
Q3 2013
Shares 8,250 Value ($000) $251 Avg Close — Range —