Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues and other income:
Coal related revenues	$ 28,562	$ 34,271	$ 58,983	$ 67,917
Coal related revenues-affiliates	32,342	21,090	51,403	39,817
Aggregates related revenues	42,886	3,563	71,832	6,959
Oil and gas related revenues	14,839	17,822	30,069	27,880
Equity in earnings of unconsolidated investment	11,599	9,401	24,122	19,180
Property taxes	3,070	3,378	6,074	7,345
Other	4,332	1,036	4,824	1,772
Total revenues and other income	137,630	90,561	247,307	170,870
Costs and expenses:
Coal related expenses	504	663	1,825	1,240
Coal related expenses-affiliates	109		109
Aggregates related expenses	32,800		55,207	73
Oil and gas related expenses	2,999	2,291	6,760	4,212
General and administrative	2,234	6,029	9,689	8,719
General and administrative-affiliates	3,535	3,000	7,321	6,094
Depreciation, depletion and amortization	30,660	16,350	56,052	30,997
Asset impairments	3,803	5,624	3,803	5,624
Property, franchise and other taxes	5,066	6,201	10,204	11,069
Total operating expenses	81,710	40,158	150,970	68,028
Income from operations	55,920	50,403	96,337	102,842
Other income (expense)
Interest expense	(23,343)	(19,037)	(46,286)	(38,897)
Interest income	1	41	16	67
Other expense, net	(23,342)	(18,996)	(46,270)	(38,830)
Net income	32,578	31,407	50,067	64,012
Less: net income attributable to non-controlling interest	(1,244)		(1,244)
Net income attributable to NRP	31,334	31,407	48,823	64,012
Net income attributable to partners:
Limited partners	30,707	30,779	47,847	62,732
General partner	$ 627	$ 628	$ 976	$ 1,280
Basic and diluted net income per common unit	$ 0.25	$ 0.28	$ 0.39	$ 0.57
Weighted average number of common units outstanding	122,300	110,403	122,300	110,127
Net income	$ 32,578	$ 31,407	$ 50,067	$ 64,012
Comprehensive (income) loss from unconsolidated investment and other	210	(164)	(755)	(264)
Comprehensive income attributable to non-controlling interest	(1,244)		(1,244)
Comprehensive income attributable to NRP	$ 31,544	$ 31,243	$ 48,068	$ 63,748