NOTE E—LONG-TERM LIABILITIES

Long-term liabilities, excluding derivative financial instruments (see Note I), consisted of the following for the balance sheets dated:

	March 31,		December 31,
	2013		2012
	(in thousands)
Line of Credit	$	89,500	$	99,500
Convertible debentures	1,636		1,636
Asset retirement obligations	25,065		25,236
Litigation allowance	3,100		3,100
	119,301		129,472
Less current portion	1,790		1,790
Long-term portion	$	117,511	$	127,682

On December 15, 2011, the Company entered into a five-year $300 million Second Amended and Restated Credit Agreement with Bank of Montreal. This replaced the prior $250 million credit agreement with GE Business Financial Services, Inc. The Credit Facility provides for a revolving credit facility up to the lesser of: (i) $300 million, (ii) the Borrowing Base, or (iii) the Draw Limit requested by the Company. The Credit Facility matures on December 15, 2016, is secured by substantially all of Warren’s oil and gas assets, and is guaranteed by the two wholly-owned subsidiaries of the Company. In December 2012, the borrowing base was increased to $140 million. The maximum amount available is subject to semi-annual redeterminations of the borrowing base in April and October of each year, based on the value of the Company’s proved oil and natural gas reserves in accordance with the lenders’ customary procedures and practices. Both the Company and the lenders have the right to request one additional redetermination each year. Credit line interest of approximately $0.1 million was accrued as of March 31, 2013. As of March 31, 2013, the Company has $89.5 million outstanding on its borrowing base.

The Company is subject to certain covenants under the terms of the Credit Facility which include, but are not limited to, the maintenance of the following financial ratios (1) minimum current ratio of current assets (including unused borrowing base in current assets) to current liabilities of 1.0 to 1.0 and (2) a minimum annualized consolidated EBITDAX (as defined by the Credit Facility) to net interest expense of 2.5 to 1.0. The Company was in compliance with these covenants as of March 31, 2013.

Depending on the amount outstanding and the level of borrowing base usage, the annual interest rate on each base rate loan under the Credit Facility will be, at the Company’s option, either: (a) a “LIBOR Loan”, which has an interest rate equal to the sum of the applicable LIBOR period plus the applicable “LIBOR Margin” that ranges from 1.75% to 2.75%, or (b) a “Base Rate Loan”, or any other obligation other than a LIBOR Loan, which has an interest rate equal to the sum of the “Base Rate”, calculated to be the higher of: (i) the Agent’s prime rate of interest announced from time to time, or (ii) the Federal Funds rate most recently determined by the Agent plus one-half percent, plus an applicable “Base Rate Margin” that ranges from 0.75% to 1.75%. The weighted average interest rate as of March 31, 2013, was 2.46%.

The convertible bonds may be converted until maturity at 100% of principal amount into common stock of the Company at a conversion price of $50. Each year the holders of the convertible bonds may tender to the Company up to 10% of the aggregate bonds issued and outstanding. During the three months ended March 31, 2013, there were no bond redemptions.