XTO ENERGY INC

CUSIP: 98385X106 Class: COMMON STOCK

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

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

Q1 2010

Shares 44,600 Value ($000) $2,104 Avg Close — Range —

Q4 2009

Shares 44,300 Value ($000) $2,061 Avg Close — Range —

Q3 2009

Shares 44,300 Value ($000) $1,830 Avg Close — Range —

Q2 2009

Shares 44,100 Value ($000) $1,682 Avg Close — Range —

Q1 2009

Shares 5,500 Value ($000) $168 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2010	44,600	$2,104	—	—
Q4 2009	44,300	$2,061	—	—
Q3 2009	44,300	$1,830	—	—
Q2 2009	44,100	$1,682	—	—
Q1 2009	5,500	$168	—	—