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BUSINESS COMBINATIONS (Tables)
3 Months Ended
Mar. 31, 2019
Business Combinations [Abstract]  
Schedule of Business Acquisitions, by Acquisition
The preliminary purchase price for the Acquisition has been allocated to the assets acquired and liabilities assumed as of the acquisition date and is as follows:

(in thousands)
ETG and ELK
Property, Plant and Equipment
$
1,089,342

Accounts Receivable
45,875

Provision for Uncollectibles
(6,579
)
Natural Gas in Storage
12,204

Materials and Supplies
345

Other Prepayments and Current Assets
200

Deferred Income Taxes
21,024

Regulatory Assets
136,213

Goodwill
731,029

     Total assets acquired
2,029,653

Accounts Payable
13,089

Other Current Liabilities
9,185

Environmental Remediation Costs - Current
7,100

Pension and Other Postretirement Benefits
3,213

Environmental Remediation Costs - Non Current
66,165

Regulatory Liabilities
189,509

Other
1,107

     Total liabilities assumed
289,368

          Total net assets acquired
$
1,740,285