Benefit Plans (Notes)

12 Months Ended

Dec. 31, 2018

Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]

Benefit Plans

Note 9 - Benefit Plans

Employees supporting our operations participate in the benefit plans and the employee thrift plan of Marathon. Marathon allocates expense to us for costs associated with the benefit plans based on the salaries of Marathon’s employees that provide services to us as a percentage of total Marathon salaries. The Predecessors were allocated expenses for costs associated with the benefit plans primarily based on the percentage of the Predecessors’ allocated salaries compared to our Sponsor’s total salaries. Our portion of our Sponsor’s employee benefit plan expenses was $35 million, $34 million and $25 million for the years ended December 31, 2018, 2017 and 2016, respectively. These employee benefit plan expenses and the related payroll costs are included in operating expenses and general and administrative expenses in our consolidated statements of operations and include amounts allocated to the Predecessors.