Exhibit 12

Williams Partners L.P.

Computation of Ratio of Earnings to Fixed Charges

	Three months ended
	March 31, 2014
	(Millions)
Earnings:
Income before income taxes	$	360
Less: Equity earnings	(23		)
Income before income taxes and equity earnings	337
Add:
Fixed charges:
Interest incurred	131
Rental expense representative of interest factor	2
Total fixed charges	133
Distributed income of equity-method investees	43
Less:
Interest capitalized	(25		)
Total earnings as adjusted	$	488
Fixed charges	$	133
Ratio of earnings to fixed charges	3.67