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Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2019
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
 
June 30,
2019
 
December 31,
2018
Property, Plant and Equipment
 
 
 
Intangible Drilling Cost
$
4,411,513

 
$
4,120,283

Proved Gas Properties
1,150,723

 
1,135,411

Gas Gathering Equipment
2,324,938

 
2,126,895

Unproved Gas Properties
946,114

 
927,667

Gas Wells and Related Equipment
983,214

 
859,359

Surface Land and Other Equipment
236,141

 
238,487

Other Gas Assets
150,846

 
159,326

Total Property, Plant and Equipment
10,203,489

 
9,567,428

Less: Accumulated Depreciation, Depletion and Amortization
2,863,627

 
2,624,984

Total Property, Plant and Equipment - Net
$
7,339,862

 
$
6,942,444