FRONTIER OIL CORP

CUSIP: 35914P105 Class: COM

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

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

Q2 2011
Shares 33,600 Value ($000) $1,086 Avg Close — Range —
Q1 2011
Shares 600 Value ($000) $18 Avg Close — Range —
Q4 2010
Shares 600 Value ($000) $11 Avg Close — Range —
Q1 2010
Shares 25,500 Value ($000) $344 Avg Close — Range —
Q4 2009
Shares 25,300 Value ($000) $305 Avg Close — Range —
Q3 2009
Shares 25,000 Value ($000) $348 Avg Close — Range —
Q2 2009
Shares 88,600 Value ($000) $1,162 Avg Close — Range —
Q1 2009
Shares 88,600 Value ($000) $1,133 Avg Close — Range —