Borrowings and Other Financing Instruments (Tables)

6 Months Ended

Jun. 30, 2012

Borrowings and Other Financing Instruments [Abstract]

Commercial Paper

The following table presents commercial paper outstanding for SPS:

(Amounts in Millions, Except Interest Rates)	Three Months Ended June 30, 2012			Twelve Months Ended Dec. 31, 2011
Borrowing limit	$	300		$	300
Amount outstanding at period end		-			-
Average amount outstanding		55			54
Maximum amount outstanding		106			161
Weighted average interest rate, computed on a daily basis		0.39	%		0.37	%
Weighted average interest rate at period end		N/A			N/A

Committed Credit Facilities Available

At June 30, 2012, SPS had the following committed credit facility available (in millions of dollars):

Credit Facility		Drawn		Available
$	300.0	$	-	$	300.0

Money Pool

The following table presents the money pool borrowings for SPS:

(Amounts in Millions, Except Interest Rates)	Three Months Ended June 30, 2012			Twelve Months Ended Dec. 31, 2011
Borrowing limit	$	100		$	100
Amount outstanding at period end		-			5
Average amount outstanding		14			12
Maximum amount outstanding		65			71
Weighted average interest rate, computed on a daily basis		0.35	%		0.35	%
Weighted average interest rate at period end		N/A			0.35