v3.20.2
REVENUE FROM CONTRACTS WITH CUSTOMERS
 6 Months Ended
Jun. 30, 2020
Revenue from Contract with Customer [Abstract]  
REVENUE FROM CONTRACTS WITH CUSTOMERS [Text Block] REVENUE FROM CONTRACTS WITH CUSTOMERS
Contract Assets and Contract Liabilities
The following table provides information about contract assets and contract liabilities from contracts with customers:
20202019
Contract AssetsContract LiabilitiesContract AssetsContract Liabilities
(Thousands of Dollars)
Balance as of January 1:
Current portion$2,140  $(21,083) $2,066  $(21,579) 
Noncurrent portion1,003  (40,289) 539  (38,945) 
Held for sale —  —  —  (25,357) 
Total 3,143  (61,372) 2,605  (85,881) 
Activity:
Additions2,670  (34,156) 2,674  (24,537) 
Transfer to accounts receivable(2,258) —  (2,638) —  
Transfer to revenues, including amounts
reported in discontinued operations
(125) 29,848  —  46,757  
Total 287  (4,308) 36  22,220  
Balance as of June 30:
Current portion2,218  (20,235) 1,483  (23,688) 
Noncurrent portion1,212  (45,445) 1,158  (39,973) 
Total $3,430  $(65,680) $2,641  $(63,661) 

As previously discussed in Note 3, the inclusion of PDVSA on the SDN List prevented us from providing services to PDVSA unless the sanctions were lifted or otherwise modified. As a result, in the first quarter of 2019 we accelerated the recognition of revenue totaling $16.3 million, representing the amount remaining from a third quarter 2018 settlement we entered into with PDVSA.

Remaining Performance Obligations
The following table presents our estimated revenue from contracts with customers for remaining performance obligations that has not yet been recognized, representing our contractually committed revenue as of June 30, 2020 (in thousands of dollars):
2020 (remaining)$303,381  
2021447,265  
2022350,120  
2023259,775  
2024189,709  
Thereafter279,738  
Total$1,829,988  

Our contractually committed revenue, for purposes of the tabular presentation above, is generally limited to customer service contracts that have fixed pricing and fixed volume terms and conditions, generally including contracts with payment obligations for take-or-pay minimum volume commitments.
Disaggregation of Revenues
The following table disaggregates our revenues:
Three Months Ended June 30,Six Months Ended June 30,
2020201920202019
(Thousands of Dollars)
Pipeline segment:
Crude oil pipelines $79,110  $77,293  $170,832  $145,771  
Refined products and ammonia pipelines
(excluding lessor revenues)
86,173  92,534  189,307  177,640  
Total pipeline segment revenues from contracts with customers
165,283  169,827  360,139  323,411  
Lessor revenues825  2,666  1,650  5,333  
Total pipeline segment revenues166,108  172,493  361,789  328,744  
Storage segment:
Throughput terminals32,199  23,170  70,922  44,856  
Storage terminals (excluding lessor revenues)76,880  77,039  151,046  148,660  
Total storage segment revenues from contracts with customers
109,079  100,209  221,968  193,516  
Lessor revenues10,328  10,194  20,656  20,387  
Total storage segment revenues119,407  110,403  242,624  213,903  
Fuels marketing segment:
Revenues from contracts with customers
54,025  89,549  127,927  177,628  
Consolidation and intersegment eliminations—  —  (9) (4) 
Total revenues$339,540  $372,445  $732,331  $720,271