Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2019

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring Basis

The financial instrument measured at fair value on a recurring basis is summarized below:

	Fair Value Measurements at September 30, 2019						Fair Value Measurements at December 31, 2018
Description	(Level 1)		(Level 2)		(Level 3)		(Level 1)		(Level 2)		(Level 3)
Gas Derivatives	$	—	$	313,244	$	—	$	—	$	99,456	$	—

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis

The carrying amounts and fair values of financial instruments for which the fair value option was not elected are as follows:

	September 30, 2019				December 31, 2018
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Cash and Cash Equivalents	$	5,484	$	5,484	$	17,198	$	17,198
Long-Term Debt (Excluding Debt Issuance Costs)	$	2,649,802	$	2,505,114	$	2,387,001	$	2,290,537