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Restructuring Costs Restructuring Costs
 3 Months Ended
Mar. 31, 2017
Restructuring and Related Activities [Abstract]  
Restructuring and Related Activities Disclosure [Text Block]
Restructuring Costs

In April 2015 and May 2016, we announced plans to consolidate and reorganize domestic operating functions to our headquarters in The Woodlands, Texas, which resulted in a reduction of employees and closure of our offices in Denver, Colorado; North Houston (Greenspoint), Texas; and Tulsa, Oklahoma. Our decision to restructure the organization was primarily in response to the oil and gas commodity price environment. Substantially all restructuring-related costs have been recognized as expense as of December 31, 2016.

The following table summarizes our restructuring costs and related liability for the first quarter of 2017.
 
 
Severance and Related Benefit Costs
 
Office-lease Abandonment Costs(1)
 
Relocation Costs
 
Other Associated Costs
 
Total
 
 
(In millions)
Restructuring liability at January 1, 2017
 
$
1

 
$
14

 
$
—

 
$
—

 
$
15

Additions
 
—

 
—

 
1

 
—

 
1

Settlements
 
(1
)
 
(1
)
 
(1
)
 
—

 
(3
)
Revisions
 
—

 
(1
)
 
—

 
—

 
(1
)
Restructuring liability at March 31, 2017
 
$
—

 
$
12

 
$
—

 
$
—

 
$
12

Cumulative costs as of March 31, 2017
 
$
24

 
$
19

 
$
11

 
$
1

 
$
55

Expected total costs as of March 31, 2017
 
$
24

 
$
19

 
$
11

 
$
1

 
$
55


_________________
(1)
The office-lease abandonment liability will be relieved while lease payments are made and sublease income is received over the life of the lease ending 2022.

Restructuring costs recorded in our consolidated statement of operations and comprehensive income for office-lease abandonment costs and relocation costs are included in "Operating expenses - General and administrative."