The tables below present the disaggregation of oil, gas, and NGL production revenue by product type for each of the Company’s operating regions for the three and nine months ended September 30, 2018, and 2017:



	Permian						South Texas & Gulf Coast						Rocky Mountain						Total
	Three Months Ended September 30,						Three Months Ended September 30,						Three Months Ended September 30,						Three Months Ended September 30,
	2018			2017			2018			2017			2018			2017			2018			2017
	(in thousands)
Oil, gas, and NGL production revenue:
Oil production revenue	$	270,086		$	107,248		$	17,436		$	13,726		$	—		$	33,229		$	287,522		$	154,203
Gas production revenue	40,364			16,034			56,446			69,069			—			1,162			96,810			86,265
NGL production revenue	563			151			73,487			53,023			—			817			74,050			53,991
Total	$	311,013		$	123,433		$	147,369		$	135,818		$	—		$	35,208		$	458,382		$	294,459
Relative percentage	68		%	42		%	32		%	46		%	—		%	12		%	100		%	100		%

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Note: Amounts may not calculate due to rounding.



	Permian						South Texas & Gulf Coast						Rocky Mountain						Total
	Nine Months Ended September 30,						Nine Months Ended September 30,						Nine Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017			2018			2017			2018			2017
	(in thousands)
Oil, gas, and NGL production revenue:
Oil production revenue	$	703,516		$	267,301		$	56,365		$	65,662		$	54,851		$	117,738		$	814,732		$	450,701
Gas production revenue	96,974			40,280			161,414			245,030			1,595			3,846			259,983			289,156
NGL production revenue	816			405			167,505			169,938			790			2,396			169,111			172,739
Total	$	801,306		$	307,986		$	385,284		$	480,630		$	57,236		$	123,980		$	1,243,826		$	912,596
Relative percentage	64		%	34		%	31		%	53		%	5		%	13		%	100		%	100		%

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Note: Amounts may not calculate due to rounding.