SPECTRA ENERGY PARTNERS LP

CUSIP: 84756N109 Class: COMMON STOCK

TETRAD CORP's Holding History (CIK: 0000883597)

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

Q2 2008
Shares 56,500 Value ($000) $1,302 Avg Close — Range —
Q1 2008
Shares 56,500 Value ($000) $1,370 Avg Close — Range —
Q4 2007
Shares 56,500 Value ($000) $1,354 Avg Close — Range —
Q3 2007
Shares 56,500 Value ($000) $1,484 Avg Close — Range —