The following table summarizes components of selected balance sheet accounts as of the dates presented:



	Successor		Predecessor
	December 31,
	2016		2015
Other current assets:
Tubular inventory and well materials	$	2,125	$	2,878
Prepaid expenses	903		4,184
Other	—		42
	$	3,028	$	7,104
Other assets:
Deferred issuance costs of the credit facilities ¹	$	2,785	$	1,572
Assets of the SERP²	—		4,123
Other	2,544		2,655
	$	5,329	$	8,350
Accounts payable and accrued liabilities:
Trade accounts payable	$	9,825	$	11,603
Drilling costs	2,479		12,074
Royalties and revenue - related	26,116		39,119
Compensation - related	2,557		9,904
Interest	55		15,531
Deferred gains on sales of assets	—		2,593
Firm transportation obligation	—		2,756
Reserve for bankruptcy claims	3,922		—
Other	4,743		9,945
	$	49,697	$	103,525
Other liabilities:
Deferred gains on sales of assets	$	—	$	82,943
Firm transportation obligation	—		10,705
Asset retirement obligations	2,459		2,621
Defined benefit pension obligations	1,025		1,129
Postretirement health care benefit obligations	488		731
Compensation - related	—		1,447
Deferred compensation - SERP obligations and other	—		4,434
Other	100		928
	$	4,072	$	104,938

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¹ The balance as of December 31, 2016 includes those costs, net of amortization, attributable to the the Credit Facility. Deferred issuance costs attributable to the RBL, which represents the amounts outstanding as of December 31, 2015, were charged in full to interest expense during the three months ended June 30, 2016 in advance of our bankruptcy filing.

² In connection with our emergence from bankruptcy, the assets of the SERP reverted to us upon the release of claims by our employees attributable to certain deferred compensation arrangements in September 2016. The SERP assets were liquidated by the plan trustee in October 2016 and the cash value was transferred to us (See Notes 4 and 5).