Short-Term and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Short-Term and Long-Term Debt [Abstract]

Long-term Debt [Table Text Block]

Long-Term Debt
As of December 31	2012		2011
Millions
First Mortgage Bonds
4.86% Series Due 2013		$60.0		$60.0
6.94% Series Due 2014	18.0		18.0
7.70% Series Due 2016	20.0		20.0
8.17% Series Due 2019	42.0		42.0
5.28% Series Due 2020	35.0		35.0
4.85% Series Due 2021	15.0		15.0
4.95% Pollution Control Series F Due 2022	111.0		111.0
6.02% Series Due 2023	75.0		75.0
4.90% Series Due 2025	30.0		30.0
5.10% Series Due 2025	30.0		30.0
3.20% Series Due 2026	75.0		—
5.99% Series Due 2027	60.0		60.0
5.69% Series Due 2036	50.0		50.0
6.00% Series Due 2040	35.0		35.0
5.82% Series Due 2040	45.0		45.0
4.08% Series Due 2042	85.0		—
SWL&P First Mortgage Bonds 7.25% Series Due 2013	10.0		10.0
Senior Unsecured Notes 5.99% Due 2017	50.0		50.0
Variable Demand Revenue Refunding Bonds Series 1997 A, B, and C Due 2013 – 2020	27.5		28.2
Industrial Development Revenue Bonds 6.5% Due 2025	—		6.0
Industrial Development Variable Rate Demand Refunding Revenue Bonds Series 2006 Due 2025	27.8		27.8
Unsecured Term Loan Variable Rate Due 2014	75.0		75.0
Other Long-Term Debt, 1.0% – 8.0% Due 2013 – 2037	41.8		40.3
Total Long-Term Debt	1,018.1		863.3
Less: Due Within One Year	84.5		5.4
Net Long-Term Debt		$933.6		$857.9

On July 2, 2012, we issued $160.0 million of the Company’s First Mortgage Bonds (Bonds) in the private placement market in two series as follows:

Issue Date	Maturity Date	Principal Amount	Interest Rate
July 2, 2012	July 15, 2026	$75 Million	3.20%
July 2, 2012	July 15, 2042	$85 Million	4.08%