The following tables present a summary of our unaudited interim results of operations:



	Successor
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
2018
Total revenues	$	59,087		$	59,625		$	66,718		$	61,932
Operating income (loss) (1)	$	8,426		$	12,024		$	18,312		$	(8,585	)
Net income (loss)	$	(11,442	)	$	(21,993	)	$	(12,068	)	$	78,945
Earnings per share:
Basic for Class A and Class B (2)	(0.25		)	$	(0.49	)	$	(0.27	)	$	1.74
Diluted for Class A and Class B (2)	(0.25		)	$	(0.49	)	$	(0.27	)	$	1.73

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(1)	Includes loss on impairment of oil and natural gas properties of $20,065 for the fourth quarter.


(2)	On December 19, 2018, all outstanding shares of Class B common stock converted into the same number of shares of Class A common stock.



	Predecessor		Successor
	January 1 Through March 21, 2017		First Quarter			Second Quarter		Third Quarter			Fourth Quarter
2017
Total revenues	$	66,531	$	7,808		$	74,048	$	75,947		$	69,276
Operating income (loss) (1)	$	9,752	$	(6,292	)	$	4,600	$	2,135		$	(45,709	)
Net income (loss) (2)(3)	$	1,041,959	$	(19,683	)	$	21,365	$	(19,115	)	$	(101,469	)
Earnings per share
Basic for Class A and Class B	*		*			0.47		(0.42		)	(2.26		)
Diluted for Class A and Class B	*		*			0.47		(0.42		)	(2.26		)

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(1)	Includes loss on impairment of oil and natural gas properties of $42,146 for the fourth quarter.


(2)	Includes a loss from the sale of our EOR assets of $25,163 for the fourth quarter. See “Note 6—Acquisitions and divestitures” for additional information.


(3)	Includes reorganization items income (expense) related to the Company’s restructuring under Chapter 11 filings of $988,727, $(620), $(1,070), $(858), and $(543) for the Predecessor first quarter, Successor first, second, third, and fourth quarters, respectively. See “Note 4—Fresh start accounting” for additional information.

* Item not disclosed. See “Note 2—Earnings per share.”