ENERPLUS CORP

CUSIP: 292766102 Class: COM

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

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

Q1 2012
Shares 18,000 Value ($000) $404 Avg Close — Range —
Q4 2011
Shares 15,000 Value ($000) $380 Avg Close — Range —
Q3 2011
Shares 96,600 Value ($000) $2,371 Avg Close — Range —
Q2 2011
Shares 90,400 Value ($000) $2,857 Avg Close — Range —
Q1 2011
Shares 86,000 Value ($000) $2,723 Avg Close — Range —