Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 43,789	$ 39,350
Adjustments to reconcile net income to net cash provided by operating activities:
Net unrealized gain related to derivative instruments	(3,316)	(656)
Depreciation and amortization	74,430	70,899
Loss on disposal or impairment of long-lived assets, net	1,479	20,633
Earnings from equity method investments	(60,699)	(48,372)
Gain on issuance of common units by equity method investee	(6,033)	(26,899)
Gain on sale of common units of equity method investee	(14,517)	(26,748)
Distributions from equity investments	69,898	61,757
Amortization of debt issuance costs	3,707	2,580
Deferred tax expense	23,469	25,193
Non-cash equity compensation	7,760	6,480
Excess tax benefit from equity-based awards	0	(1,650)
Loss on fair value of warrants	0	23,499
Provision for uncollectible accounts receivable, net of recoveries	(608)	153
Currency gain	(1,199)	(388)
Inventory valuation adjustment	1,235	0
Changes in operating assets and liabilities (Note 12)	(2,346)	(39,931)
Net cash provided by operating activities	137,049	105,900
Cash flows from investing activities:
Capital expenditures	(352,816)	(194,227)
Proceeds from sale of long-lived assets	2,537	4,083
Contributions to equity method investments	(34,059)	(70,730)
Payments to Acquire Businesses, Net of Cash Acquired	0	44,508
Proceeds from sale of common units of equity method investee	56,318	59,744
Distributions in excess of equity in earnings of affiliates	19,564	6,565
Net cash used in investing activities	(308,456)	(239,073)
Cash flows from financing activities:
Debt issuance costs	(6,289)	(8,670)
Borrowings on credit facilities and issuance of senior unsecured notes, net of discount	802,208	1,074,244
Principal payments on credit facilities and other obligations	(525,037)	(896,261)
Rose Rock Midstream, L.P. equity issuance	89,119	0
Distributions to noncontrolling interests	(29,780)	(20,571)
Proceeds from Warrant Exercises	0	86
Repurchase of common stock for payment of statutory taxes due on equity-based compensation	(4,259)	(719)
Dividends paid	(49,836)	(31,149)
Proceeds from issuance of common stock under employee stock purchase plan	909	340
Excess tax benefit from equity-based awards	0	1,650
Net cash provided by financing activities	277,035	118,950
Effect of exchange rate changes on cash and cash equivalents	(233)	1,921
Change in cash and cash equivalents	105,395	(12,302)
Cash and cash equivalents at beginning of period	40,598	79,351
Cash and cash equivalents at end of period	$ 145,993	$ 67,049