XML 80 R33.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
PROPERTY, PLANT AND EQUIPMENT (Tables)
 12 Months Ended
Dec. 31, 2019
Regulated [Member]  
Property, Plant and Equipment [Line Items]  
Property, Plant and Equipment by Property Type

The following table sets forth our property, plant and equipment by property type, for the periods indicated:
 
 
December 31,
 
December 31,
 
 
2019
 
2018
 
 
(Thousands of dollars)
Natural gas distribution pipelines and related equipment
 
$
5,117,496

 
$
4,861,340

Natural gas transmission pipelines and related equipment
 
549,788

 
517,697

General plant and other
 
612,984

 
567,580

Construction work in process
 
152,851

 
126,526

Property, plant and equipment
 
6,433,119

 
6,073,143

Accumulated depreciation and amortization
 
(1,867,893
)
 
(1,789,431
)
Net property, plant and equipment
 
$
4,565,226

 
$
4,283,712