EXHIBIT 12.1

XTO ENERGY INC.

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	Year Ended December 31
(in millions, except ratios)	2009		2008		2007		2006		2005
Income before income tax	$	3,163	$	3,026	$	2,642	$	2,961	$	1,810
Interest expense		525		494		267		182		154
Interest portion of rentals		4		5		5		7		8
Earnings before provision for taxes and fixed charges	$	3,692	$	3,525	$	2,914	$	3,150	$	1,972
Interest expense	$	525	$	494	$	267	$	182	$	154
Capitalized interest		42		39		30		18		6
Interest portion of rentals		4		5		5		7		8
Total Fixed Charges	$	571	$	538	$	302	$	207	$	168
Ratio of Earnings to Fixed Charges		6.5		6.6		9.6		15.2		11.7