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Investments in Non-Controlled Entities (Tables)
 3 Months Ended
Mar. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]  
Equity Method Investments
Our investments in non-controlled entities at March 31, 2018 were comprised of:
Entity
 
Ownership Interest
BridgeTex Pipeline Company, LLC (“BridgeTex”)
 
50%
Double Eagle Pipeline LLC (“Double Eagle”)
 
50%
HoustonLink Pipeline Company, LLC (“HoustonLink”)
 
50%
MVP Terminalling, LLC (“MVP”)
 
50%
Powder Springs Logistics, LLC (“Powder Springs”)
 
50%
Saddlehorn Pipeline Company, LLC (“Saddlehorn”)
 
40%
Seabrook Logistics, LLC (“Seabrook”)
 
50%
Texas Frontera, LLC (“Texas Frontera”)
 
50%

We serve as operator of BridgeTex, HoustonLink, MVP, Powder Springs, Saddlehorn, Texas Frontera and the pipeline activities of Seabrook. We receive fees for management services as well as reimbursement or payment to us for certain direct operational payroll and other overhead costs. The management fees we have received are reported as affiliate management fee revenue on our consolidated statements of income. Cost reimbursements we receive from these entities in connection with our operating services are included as reductions to costs and expenses on our consolidated statements of income and totaled $1.0 million and $0.5 million during the three months ended March 31, 2017 and 2018, respectively.

We recorded the following revenue from certain of these non-controlled entities in our consolidated statements of income (in millions):
 
 
Three Months Ended March 31,
 
 
2017
 
2018
Transportation and terminals revenue:
 
 
 
 
BridgeTex, pipeline capacity
 
$
8.9

 
$
9.9

Double Eagle, throughput revenue
 
$
0.8

 
$
1.5

Saddlehorn, storage revenue
 
$
0.5

 
$
0.5

Product sales revenue:
 
 
 
 
Powder Springs, butane sales
 
$
—

 
$
2.7


Our consolidated balance sheets reflected the following balances related to our investments in non-controlled entities (in millions):
 
 
December 31, 2017
 
March 31, 2018
 
 
Trade Accounts Receivable
 
Other Accounts Receivable
 
Other Accounts Payable
 
Trade Accounts Receivable
 
Other Accounts Receivable
BridgeTex
 
$
—

 
$
—

 
$
—

 
$
0.8

 
$
0.1

Double Eagle
 
$
0.5

 
$
—

 
$
—

 
$
0.6

 
$
—

HoustonLink
 
$
—

 
$
—

 
$
0.1

 
$
—

 
$
—

MVP
 
$
—

 
$
0.4

 
$
—

 
$
—

 
$
0.4

Powder Springs
 
$
—

 
$
0.9

 
$
—

 
$
—

 
$
2.1

Saddlehorn
 
$
—

 
$
0.1

 
$
—

 
$
—

 
$
0.2

Seabrook
 
$
—

 
$
0.2

 
$
—

 
$
—

 
$
0.3


We have entered into an agreement to guarantee our 50% pro rata share, up to $25.0 million, of obligations under Powder Springs’ credit facility. As of March 31, 2018, our consolidated balance sheets reflected a $0.4 million other current liability and a corresponding increase in our investment in non-controlled entities on our consolidated balance sheets to reflect the fair value of this guarantee.

The financial results from MVP and Texas Frontera are included in our marine storage segment, the financial results from BridgeTex, Double Eagle, HoustonLink, Saddlehorn and Seabrook are included in our crude oil segment and the financial results from Powder Springs are included in our refined products segment, each as earnings of non-controlled entities.

A summary of our investments in non-controlled entities follows (in thousands):
 
 
 
Investments at December 31, 2017
 
$
1,082,511

Additional investment
 
60,976

Other adjustment to investment
 
502

Earnings of non-controlled entities:
 
 
Proportionate share of earnings
 
35,140

Amortization of excess investment and capitalized interest
 
(602
)
Earnings of non-controlled entities
 
34,538

Less:
 
 
Distributions of earnings from investments in non-controlled entities
 
51,754

Investments at March 31, 2018
 
$
1,126,773