Exhibit 12

Williams Partners L.P.
Computation of Ratio of Earnings to Fixed Charges

	Six months ended
	June 30, 2011
	(Millions)
Earnings:
Net Income	$	645
Less: Equity earnings, excluding proportionate share from 50% owned investees and unconsolidated majority-owned investees		(38	)
Net income before equity earnings		607
Add:
Fixed charges:
Interest accrued, including proportionate share from 50% owned investees and unconsolidated majority-owned investees		215
Rental expense representative of interest factor		3
Total fixed charges		218
Distributed income of equity-method investees, excluding proportionate share from 50% owned investees and unconsolidated majority-owned investees		39
Less:
Capitalized interest		(5	)
Total earnings as adjusted	$	859
Fixed charges	$	218
Ratio of earnings to fixed charges		3.94