Exhibit 12

Williams Partners L.P.

Computation of Ratio of Earnings to Fixed Charges

	Nine months ended September 30, 2011
	(Millions)
Earnings:
Net Income	$	987
Less: Equity earnings, excluding proportionate share from 50% owned investees and unconsolidated majority-owned investees		(64	)
Net income before equity earnings		923
Add:
Fixed charges:
Interest accrued, including proportionate share from 50% owned investees and unconsolidated majority-owned investees		320
Rental expense representative of interest factor		5
Total fixed charges		325
Distributed income of equity-method investees, excluding proportionate share from 50% owned investees and unconsolidated majority-owned investees		68
Less:
Capitalized interest		(8	)
Total earnings as adjusted	$	1,308
Fixed charges	$	325
Ratio of earnings to fixed charges		4.02