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FINANCIAL INSTRUMENTS
3 Months Ended
Mar. 31, 2013
Financial Instruments, Owned, at Fair Value [Abstract]  
Financial Instruments
FINANCIAL INSTRUMENTS:

RESTRICTED INVESTMENTS — In accordance with the terms of certain Marina and SJG loan agreements, unused proceeds are required to be escrowed pending approval of construction expenditures. As of both March 31, 2013 and December 31, 2012, the escrowed proceeds, including interest earned, totaled $1.3 million.

The Company maintains margin accounts with selected counterparties to support its risk management activities. The balances required to be held in these margin accounts increase as the net value of the outstanding energy related contracts with the respective counterparties decrease. As of March 31, 2013 and December 31, 2012, the balances in these accounts totaled $8.7 million and $16.6 million, respectively. The carrying amounts of the Restricted Investments approximate their fair values at March 31, 2013 and December 31, 2012, which would be included in Level 1 of the fair value hierarchy (See Note 13 - Fair Value of Financial Assets and Financial Liabilities).

LONG-TERM RECEIVABLES — SJG provides financing to customers for the purpose of attracting conversions to natural gas heating systems from competing fuel sources.  The terms of these loans call for customers to make monthly payments over a period of up to five years with no interest.  The carrying amounts of such loans were $14.0 million and $13.6 million as of March 31, 2013 and December 31, 2012, respectively. The current portion of these receivables is reflected in Accounts Receivable and the non-current portion is reflected in Contract Receivables on the condensed consolidated balance sheets. The carrying amounts noted above are net of unamortized discounts resulting from imputed interest in the amount of $1.4 million and $1.3 million as of March 31, 2013 and December 31, 2012, respectively.  The annual amortization to interest is not material to the Company’s condensed consolidated financial statements.  The carrying amounts of these receivables approximate their fair value at March 31, 2013 and December 31, 2012, which would be included in Level 2 of the fair value hierarchy (See Note 13 - Fair Value of Financial Assets and Financial Liabilities).

CREDIT RISK - As of March 31, 2013, approximately $6.4 million, or 20.9%, of the current and noncurrent Derivatives – Energy Related Assets are with a single retail counterparty. This counterparty has contracts with a large number of diverse customers which minimizes the concentration of this risk. A portion of these contracts may be assigned to SJI in the event of a default by the counterparty.

FINANCE OBLIGATION - During 2010, ACB Energy Partners LLC (ACB), a wholly-owned subsidiary of Energenic, of which Marina has a 50% equity interest, completed construction of a combined heat and power generating facility to serve, under an energy services agreement, a thermal plant owned by Marina. Construction period financing was provided by Marina. Due to its continuing involvement in the facility, Marina is considered the owner of the facility for accounting purposes. As a result, the Company included costs to construct the facility within Nonutility Property, Plant and Equipment on the condensed consolidated balance sheets of $23.6 million as of both March 31, 2013 and December 31, 2012, respectively. In addition, the Company included repayments from ACB to Marina on the construction loan within the Finance Obligation on the condensed consolidated balance sheets. Marina does not have a fixed payment obligation to ACB; as a result, the Finance Obligation is classified as a noncurrent liability on the condensed consolidated balance sheets. The costs to construct the facility and the repayments of the construction loan are amortized over the term of the energy services agreement. The impact on the condensed consolidated statements of income is not significant. As a result, the Company recorded $21.4 million and 21.6 million, net of amortization, within Finance Obligation on the condensed consolidated balance sheets at March 31, 2013 and December 31, 2012, respectively.

FINANCIAL INSTRUMENTS NOT CARRIED AT FAIR VALUE - The fair value of a financial instrument is the market price to sell an asset or transfer a liability at the measurement date. The carrying amounts of SJI's financial instruments approximate their fair values at March 31, 2013 and December 31, 2012, except as noted below.
For Long-Term Debt, in estimating the fair value, we use the present value of remaining cash flows at the balance sheet date. We based the estimates on interest rates available to SJI at the end of each period for debt with similar terms and maturities (Level 2 in the fair value hierarchy, see Note 13 - Fair Value of Financial Assets and Financial Liabilities). The estimated fair values of SJI's long-term debt, including current maturities, as of March 31, 2013 and December 31, 2012, were $674.0 million and $682.3 million, respectively.  The carrying amounts of SJI's long-term debt, including current maturities, as of both March 31, 2013 and December 31, 2012, was $626.4 million.