Basis of Presentation and Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Components of Inventories

The components of inventory as of June 30, 2018 and December 31, 2017 consisted of the following:

In thousands	June 30, 2018		December 31, 2017
Tubular goods and equipment	$	18,722	$	14,946
Crude oil	96,588		82,460
Total	$	115,310	$	97,406

Calculation of Basic and Diluted Weighted Average Shares and Net Income Per Share

The following table presents the calculation of basic and diluted weighted average shares outstanding and net income (loss) per share for the three and six months ended June 30, 2018 and 2017.

	Three months ended June 30,					Six months ended June 30,
In thousands, except per share data	2018		2017			2018		2017
Net income (loss) (numerator)	$	242,464	$	(63,557	)	$	476,410	$	(63,088	)
Weighted average shares (denominator):
Weighted average shares - basic	371,921		371,111			371,733		370,972
Non-vested restricted stock (1)	2,584		—			2,850		—
Weighted average shares - diluted	374,505		371,111			374,583		370,972
Net income (loss) per share:
Basic	$	0.65	$	(0.17	)	$	1.28	$	(0.17	)
Diluted	$	0.65	$	(0.17	)	$	1.27	$	(0.17	)