The operating results and assets of the Company’s reportable segments were as follows for the nine months ended September 30, 2015 and 2016 (in thousands):


	Exploration and production		Gathering and compression	Water handling	Marketing	Elimination of intersegment transactions	Consolidated total
Three months ended September 30, 2015:
Sales and revenues:
Third-party	$	1,403,275	3,468	959	35,633	—	1,443,335
Intersegment		398	55,790	21,487	—	(77,675)	—
Total	$	1,403,673	59,258	22,446	35,633	(77,675)	1,443,335

Operating expenses:
Lease operating	$	10,721	—	3,973	—	(3,908)	10,786
Gathering, compression, processing, and transportation		211,469	4,699	—	—	(55,866)	160,302
Depletion, depreciation, and amortization		166,900	15,282	6,485	—	—	188,667
General and administrative expense		46,165	11,265	2,577	—	(322)	59,685
Other operating expenses		28,044	(7,863)	800	61,799	—	82,780
Total		463,299	23,383	13,835	61,799	(60,096)	502,220
Operating income (loss)	$	940,374	35,875	8,611	(26,166)	(17,579)	941,115
Segment assets	$	11,940,524	1,410,920	487,734	5,847	(267,951)	13,577,074
Capital expenditures for segment assets	$	399,695	82,768	45,151	—	(17,579)	510,035


	Exploration and production		Gathering and compression	Water handling	Marketing	Elimination of intersegment transactions	Consolidated total
Three months ended September 30, 2016:
Sales and revenues:
Third-party	$	1,016,458	2,745	224	97,076	—	1,116,503
Intersegment		3,990	75,319	72,187	—	(151,496)	—
Total	$	1,020,448	78,064	72,411	97,076	(151,496)	1,116,503

Operating expenses:
Lease operating	$	13,710	—	28,978	—	(28,834)	13,854
Gathering, compression, processing, and transportation		303,753	6,400	—	—	(75,238)	234,915
Depletion, depreciation, and amortization		172,735	18,540	7,838	—	—	199,113
General and administrative expense		44,637	10,282	3,033	—	(375)	57,577
Other operating expenses		31,266	(1,708)	3,070	114,611	(3,527)	143,712
Total		566,101	33,514	42,919	114,611	(107,974)	649,171
Operating income (loss)	$	454,347	44,550	29,492	(17,535)	(43,522)	467,332
Segment assets	$	12,966,493	1,669,667	562,995	33,114	(603,016)	14,629,253
Capital expenditures for segment assets	$	909,837	56,836	58,730	—	(43,343)	982,060

The operating results and assets of the Company’s reportable segments were as follows for the nine months ended September 30, 2015 and 2016 (in thousands):


	Exploration and production		Gathering and compression	Water handling and treatment	Marketing	Elimination of intersegment transactions	Consolidated total
Nine months ended September 30, 2015:
Sales and revenues:
Third-party	$	2,891,410	8,433	6,651	143,242	—	3,049,736
Intersegment		1,025	159,661	80,886	—	(241,572)	—
Total	$	2,892,435	168,094	87,537	143,242	(241,572)	3,049,736

Operating expenses:
Lease operating	$	24,981	—	16,576	—	(15,996)	25,561
Gathering, compression, processing, and transportation		630,708	19,792	—	—	(159,867)	490,633
Depletion, depreciation, and amortization		483,991	45,255	18,767	—	—	548,013
General and administrative expense		140,821	30,685	7,238	—	(819)	177,925
Other operating expenses		113,881	25	2,437	214,201	—	330,544
Total		1,394,382	95,757	45,018	214,201	(176,682)	1,572,676
Operating income (loss)	$	1,498,053	72,337	42,519	(70,959)	(64,890)	1,477,060
Segment assets	$	11,940,524	1,410,920	487,734	5,847	(267,951)	13,577,074
Capital expenditures for segment assets	$	1,590,904	282,813	79,227	—	(64,890)	1,888,054


	Exploration and production		Gathering and compression	Water handling and treatment	Marketing	Elimination of intersegment transactions	Consolidated total
Nine months ended September 30, 2016:
Sales and revenues:
Third-party	$	1,291,008	9,463	644	287,194	—	1,588,309
Intersegment		11,714	210,144	203,106	—	(424,964)	—
Total	$	1,302,722	219,607	203,750	287,194	(424,964)	1,588,309

Operating expenses:
Lease operating	$	37,299	—	104,009	—	(104,118)	37,190
Gathering, compression, processing, and transportation		838,936	20,567	—	—	(209,790)	649,713
Depletion, depreciation, and amortization		513,302	52,780	21,975	—	—	588,057
General and administrative expense		135,356	29,755	9,957	—	(1,102)	173,966
Other operating expenses		104,279	(809)	11,568	378,521	(10,384)	483,175
Total		1,629,172	102,293	147,509	378,521	(325,394)	1,932,101
Operating income (loss)	$	(326,450)	117,314	56,241	(91,327)	(99,570)	(343,792)
Segment assets	$	12,966,493	1,669,667	562,995	33,114	(603,016)	14,629,253
Capital expenditures for segment assets	$	1,734,914	154,136	137,355	—	(98,955)	1,927,450