Restricted Investments (Tables)

12 Months Ended

Dec. 31, 2016

Investments Debt And Equity Securities [Abstract]

Restricted Investment Balance

The components of the restricted investment balance are as follows

	December 31,		December 31,
	2016		2015
	(In thousands)
BOEM platform abandonment (See Note 14)	$	152,000	$	144,008
BOEM lease bonds		—		1,533
Surety bond cash collateral		500		—
SPBPC Collateral:
Contractual pipeline and surface facilities abandonment		3,627		3,178
California State Lands Commission pipeline right-of-way bond		—		3,005
City of Long Beach pipeline facility permit		—		500
Federal pipeline right-of-way bond		—		307
Port of Long Beach pipeline license		107		100
Restricted investments	$	156,234	$	152,631