Cash Deposits and Other Assets

6 Months Ended

Jun. 30, 2017

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Cash Deposits and Other Assets

Cash Deposits and Other Assets

Components of cash deposits and other assets were as follows at the dates indicated (in thousands):

	June 30,		December 31,
	2017		2016
Insurance collateral deposits	$	4,824	$	5,032
State collateral deposits	62		143
Materials and supplies	344		354
Total	$	5,230	$	5,529

We have established certain deposits to support participation in our liability insurance program and remittance of state crude oil severance taxes and other state collateral deposits. Insurance collateral deposits are invested at the discretion of our insurance carrier and such investments primarily consist of intermediate term federal government bonds, corporate bonds and bonds backed by federal agencies. This fair value measure relies on inputs from quoted prices for similar assets and is thus categorized as a “Level 2” valuation in the fair value hierarchy. See Note 7 for further information.