MATADOR RES CO

Ticker: MTDR CUSIP: 576485205 Class: Common Stock

WESTFIELD CAPITAL MANAGEMENT CO LP's Holding History (CIK: 0001177719)

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

Q3 2013

Shares 543,613 Value ($000) $8,877 Avg Close $14.86 Range $11.49 - $17.89

Q2 2013

Shares 1,370,553 Value ($000) $16,420 Avg Close $9.87 Range $8.25 - $12.48

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2013	543,613	$8,877	$14.86	$11.49 - $17.89
Q2 2013	1,370,553	$16,420	$9.87	$8.25 - $12.48