Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
REVENUES
Natural gas operations	$ 123,052,554us-gaap_GasDomesticRegulatedRevenue	$ 97,233,112us-gaap_GasDomesticRegulatedRevenue	$ 73,900,481us-gaap_GasDomesticRegulatedRevenue
Marketing and production	9,517,287	12,167,241	7,493,361
Total revenues	132,569,841us-gaap_OilAndGasRevenue	109,400,353us-gaap_OilAndGasRevenue	81,393,842us-gaap_OilAndGasRevenue
COST OF SALES
Natural gas purchased	79,096,553us-gaap_CostOfNaturalGasPurchases	55,977,154us-gaap_CostOfNaturalGasPurchases	38,552,607us-gaap_CostOfNaturalGasPurchases
Marketing and production	8,620,826	10,052,865	5,953,156
Total cost of sales	87,717,379us-gaap_CostOfGoodsSoldOilAndGas	66,030,019us-gaap_CostOfGoodsSoldOilAndGas	44,505,763us-gaap_CostOfGoodsSoldOilAndGas
GROSS MARGIN	44,852,462us-gaap_GrossProfit	43,370,334us-gaap_GrossProfit	36,888,079us-gaap_GrossProfit
OPERATING EXPENSES
Distribution, general, and administrative	24,769,623us-gaap_GeneralAndAdministrativeExpense	21,308,592us-gaap_GeneralAndAdministrativeExpense	18,512,126us-gaap_GeneralAndAdministrativeExpense
Maintenance	1,225,491	1,142,261	995,072
Depreciation and amortization	6,604,569	5,550,753	4,337,196
Accretion	51,466	57,912	161,298
Taxes other than income	3,928,018	3,671,930	3,188,071
Provision for doubtful accounts	1,112,115us-gaap_ProvisionForDoubtfulAccounts	726,434us-gaap_ProvisionForDoubtfulAccounts	951,655us-gaap_ProvisionForDoubtfulAccounts
Contingent consideration loss (gain)	62,000	(1,565,000)	0
Goodwill impairment	0us-gaap_GoodwillImpairmentLoss	725,744us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Total operating expenses	37,753,282us-gaap_OperatingExpenses	31,618,626us-gaap_OperatingExpenses	28,145,418us-gaap_OperatingExpenses
OPERATING INCOME	7,099,180us-gaap_OperatingIncomeLoss	11,751,708us-gaap_OperatingIncomeLoss	8,742,661us-gaap_OperatingIncomeLoss
Loss from unconsolidated affiliate	(351,724)	(5,007)	(8,620)
Gain on sale of marketable securities	183,371	0	0
Acquisition expense	(7,197)	(272,094)	(959,267)
Stock sale expense	0us-gaap_OtherNonoperatingExpense	(309,432)us-gaap_OtherNonoperatingExpense	(274,213)us-gaap_OtherNonoperatingExpense
Other income, net	579,214us-gaap_OtherNonoperatingIncomeExpense	886,832us-gaap_OtherNonoperatingIncomeExpense	351,446us-gaap_OtherNonoperatingIncomeExpense
Interest expense	(3,226,096)us-gaap_InterestExpense	(3,176,155)us-gaap_InterestExpense	(2,699,720)us-gaap_InterestExpense
Income before income taxes	4,276,748	8,875,852	5,152,287
Income tax expense	(1,547,582)us-gaap_IncomeTaxExpenseBenefit	(3,023,711)us-gaap_IncomeTaxExpenseBenefit	(1,956,799)us-gaap_IncomeTaxExpenseBenefit
INCOME FROM CONTINUING OPERATIONS	2,729,166	5,852,141	3,195,488
Discontinued operations, net of income taxes (See Note 4)	1,032,611	819,138	523,829
NET INCOME	3,761,777us-gaap_NetIncomeLoss	6,671,279us-gaap_NetIncomeLoss	3,719,317us-gaap_NetIncomeLoss
BASIC & DILUTED EARNINGS (LOSS) PER SHARE:
Continuing operations (in dollars per share)	$ 0.26	$ 0.63	$ 0.39
Discontinued operations (in dollars per share)	$ 0.10	$ 0.08	$ 0.07
Net income per share (in dollars per share)	$ 0.36us-gaap_EarningsPerShareBasicAndDiluted	$ 0.71us-gaap_EarningsPerShareBasicAndDiluted	$ 0.46us-gaap_EarningsPerShareBasicAndDiluted
Weighted average dividends declared per common share (in dollars per share)	$ 0.50	$ 0.55	$ 0.54
COMPREHENSIVE INCOME:
Net income	3,761,777us-gaap_NetIncomeLoss	6,671,279us-gaap_NetIncomeLoss	3,719,317us-gaap_NetIncomeLoss
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX
Unrealized gain (loss) on available for sale securities, net of tax of $7,689, $22,951 and $8,913, respectively	14,811	39,120	(14,616)
Accumulated unrealized gain on available for sale securities transferred to earnings, net of tax of $63,651	(119,720)	0	0
Other comprehensive income (loss), net of tax	(104,909)	39,120	(14,616)
COMPREHENSIVE INCOME	$ 3,656,868us-gaap_ComprehensiveIncomeNetOfTax	$ 6,710,399us-gaap_ComprehensiveIncomeNetOfTax	$ 3,704,701us-gaap_ComprehensiveIncomeNetOfTax

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