Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating revenues
Operating revenues	$ 740,598	$ 564,087
Operating costs and expenses
Contract drilling operating expenses, excluding depreciation and amortization	487,593	371,916
Operating expenses applicable to other revenues	1,274	1,167
Depreciation and amortization	141,460	143,267
Research and development	7,019	3,234
Selling, general and administrative	54,508	46,459
Gain on sale of assets	(5,545)	(5,565)
Total operating costs and expenses	686,309	560,478
Operating income from continuing operations	54,289	3,609
Other income (expense)
Interest and dividend income	2,450	1,724
Interest expense	(4,720)	(5,773)
Loss on investment securities	(42,844)
Other	541	441
Total other income (expense)	(44,573)	(3,608)
Income from continuing operations before income taxes	9,716	1
Income tax provision (benefit)	1,352	(500,641)
Income from continuing operations	8,364	500,642
Income (loss) from discontinued operations before income taxes	12,665	(519)
Income tax provision	2,070	17
Income (loss) from discontinued operations	10,595	(536)
Net Income	$ 18,959	$ 500,106
Basic earnings per common share:
Income from continuing operations (in dollars per share)	$ 0.07	$ 4.57
Income from discontinued operations (in dollars per share)	0.10
Net income (in dollars per share)	0.17	4.57
Diluted earnings per common share:
Income from continuing operations (in dollars per share)	0.07	4.55
Income from discontinued operations (in dollars per share)	0.10
Net income (in dollars per share)	$ 0.17	$ 4.55
Weighted average shares outstanding (in thousands):
Basic (in shares)	109,142	108,683
Diluted (in shares)	109,425	109,095
Contract Drilling
Operating revenues
Operating revenues	$ 737,358	$ 561,069
Other.
Operating revenues
Operating revenues	$ 3,240	$ 3,018