Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 411,492	$ 662,829
Accounts receivable, net	212,229	204,696
Taxes receivable	12,811	105,345
Prepaid expenses and other current assets	60,721	66,105
Total current assets	697,253	1,038,975
Property and equipment, at cost	10,924,509	12,034,331
Accumulated depreciation	(2,403,099)	(2,545,091)
Property and equipment, net	8,521,410	9,489,240
Other assets	175,024	266,444
Total assets	9,393,687	10,794,659
Current liabilities
Current maturities of long-term debt	0	249,843
Accounts payable	93,612	84,032
Accrued payroll and related costs	41,852	54,904
Taxes payable	33,278	34,391
Interest payable	103,407	98,189
Other current liabilities	65,087	71,665
Total current liabilities	337,236	593,024
Long-term debt	3,842,617	3,795,867
Deferred income taxes	155,961	164,962
Other liabilities	284,823	290,178
Total liabilities	4,620,637	4,844,031
Commitments and contingencies
Shareholders' equity
Common stock	2,468	2,450
Additional paid-in capital	688,214	678,922
Retained earnings	3,721,433	4,637,677
Accumulated other comprehensive loss	(49,883)	(42,888)
Total shareholders' equity	4,362,232	5,276,161
Noncontrolling interests	410,818	674,467
Total equity	4,773,050	5,950,628
Total liabilities and equity	9,393,687	10,794,659
Noble Corp
Current assets
Cash and cash equivalents	410,672	662,011
Accounts receivable, net	212,229	204,696
Taxes receivable	12,811	105,345
Prepaid expenses and other current assets	60,628	65,441
Total current assets	696,340	1,037,493
Property and equipment, at cost	10,924,509	12,034,331
Accumulated depreciation	(2,403,099)	(2,545,091)
Property and equipment, net	8,521,410	9,489,240
Other assets	175,109	266,528
Total assets	9,392,859	10,793,261
Current liabilities
Current maturities of long-term debt	0	249,843
Accounts payable	93,431	83,873
Accrued payroll and related costs	41,821	54,904
Taxes payable	33,278	33,965
Interest payable	103,407	98,189
Other current liabilities	64,928	71,466
Total current liabilities	336,865	592,240
Long-term debt	3,842,617	3,795,867
Deferred income taxes	155,961	164,962
Other liabilities	284,823	290,178
Total liabilities	4,620,266	4,843,247
Commitments and contingencies
Shareholders' equity
Common stock	26,125	26,125
Additional paid-in capital	635,848	623,137
Retained earnings	3,749,685	4,669,173
Accumulated other comprehensive loss	(49,883)	(42,888)
Total shareholders' equity	4,361,775	5,275,547
Noncontrolling interests	410,818	674,467
Total equity	4,772,593	5,950,014
Total liabilities and equity	$ 9,392,859	$ 10,793,261