Short-Term and Long-Term Borrowings (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Schedule of lines of credit

(in thousands)	Line Limit		In Use on June 30, 2013		Restricted due to  Outstanding  Letters of Credit		Available on June 30, 2013		Available on December 31,  2012
Otter Tail Corporation Credit Agreement	$	150,000	$	--	$	680	$	149,320	$	149,267
OTP Credit Agreement		170,000		1,117		1,189		167,694		166,811
Total	$	320,000	$	1,117	$	1,869	$	317,014	$	316,078

Issuance of long-term debt

Principal Amount	Term	Rate
$60 million	15 years	4.68%
$90 million	30 years	5.47%

Schedule of short-term and long-term debt outstanding

June 30, 2013 (in thousands)	OTP		Varistar		Otter Tail Corporation		Otter Tail Corporation Consolidated
Short-Term Debt	$	1,117	$	--	$	--	$	1,117
Long-Term Debt:
Unsecured Term Loan - LIBOR plus 0.875%, due June 1, 2014	$	40,900					$	40,900
9.000% Notes, due December 15, 2016					$	100,000		100,000
Senior Unsecured Notes 5.95%, Series A, due August 20, 2017		33,000						33,000
Senior Unsecured Notes 4.63%, due December 1, 2021		140,000						140,000
Senior Unsecured Notes 6.15%, Series B, due August 20, 2022		30,000						30,000
Senior Unsecured Notes 6.37%, Series C, due August 20, 2027		42,000						42,000
Senior Unsecured Notes 6.47%, Series D, due August 20, 2037		50,000						50,000
Other Obligations - Various up to 3.95% at June 30, 2013		--				1,638		1,638
Total	$	335,900			$	101,638	$	437,538
Less: Current Maturities		--				182		182
Unamortized Debt Discount		--				3		3
Total Long-Term Debt	$	335,900			$	101,453	$	437,353
Total Short-Term and Long-Term Debt (with current maturities)	$	337,017	$	--	$	101,635	$	438,652

December 31, 2012 (in thousands)	OTP		Varistar		Otter Tail Corporation		Otter Tail Corporation Consolidated
Short-Term Debt	$	--	$	--	$	--	$	--
Long-Term Debt:
9.000% Notes, due December 15, 2016					$	100,000	$	100,000
Senior Unsecured Notes 5.95%, Series A, due August 20, 2017	$	33,000						33,000
Grant County, South Dakota Pollution Control    Refunding Revenue Bonds 4.65%, due September 1, 2017		5,065						5,065
Senior Unsecured Notes 4.63%, due December 1, 2021		140,000						140,000
Senior Unsecured Notes 6.15%, Series B, due August 20, 2022		30,000						30,000
Mercer County, North Dakota Pollution Control    Refunding Revenue Bonds 4.85%, due September 1, 2022		20,070						20,070
Senior Unsecured Notes 6.37%, Series C, due August 20, 2027		42,000						42,000
Senior Unsecured Notes 6.47%, Series D, due August 20, 2037		50,000						50,000
Other Obligations - Various up to 3.95% at December 31, 2012						1,725		1,725
Total	$	320,135			$	101,725	$	421,860
Less: Current Maturities		--				176		176
Unamortized Debt Discount		--				4		4
Total Long-Term Debt	$	320,135			$	101,545	$	421,680
Total Short-Term and Long-Term Debt (with current maturities)	$	320,135	$	--	$	101,721	$	421,856