Gas Reserves (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Gas Reserves [Abstract]
Cumulative gross investment Jonah Wells	$ 10,000,000
Total gas reserves investment Jonah Wells	9,200,000
Net gas reserves investment Jonah Wells	8,400,000
Gas Reserves Percent Gas Supplies YTD	10.00%	6.00%
Gas Reserves, Current	20,020,000	20,646,000
Gas Reserves Noncurrent Gross	167,190,000	140,573,000
Gas Reserves Amortization	37,910,000	18,575,000
Total Gas Reserves	149,300,000	142,644,000
Deferred Taxes Related To Gas Reserves	18,551,000	42,117,000
Net Gas Reserves Investment	$ 130,749,000	$ 100,527,000