Bonterra Energy Corp.

Ticker: BNEFF CUSIP: 098546104 Class: COM

BLAIR WILLIAM & CO/IL's Holding History (CIK: 0000902367)

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

Q2 2015
Shares 375,344 Value ($000) $9,467 Avg Close $21.82 Range $19.48 - $24.68
Q1 2015
Shares 385,158 Value ($000) $10,312 Avg Close $24.05 Range $20.70 - $27.93