The following tables provide information about disaggregated revenue by revenue streams, reportable segments, geographical region, and timing of revenue recognition for the three and six months ended March 31, 2020 and 2019.



		Three months ended March 31, 2020
		Oil and natural gas		Contract drilling		Land investment		Other		Total
Revenue streams:
	Oil	$	1,478,000	$	—	$	—	$	—	$	1,478,000
	Natural gas	307,000		—		—		—		307,000
	Natural gas liquids	125,000		—		—		—		125,000
	Drilling and pump	—		2,593,000		—		—		2,593,000
	Other	—		—		—		70,000		70,000
	Total revenues before interest income	$	1,910,000	$	2,593,000	$	—	$	70,000	$	4,573,000
Geographical regions:
	United States	$	—	$	2,593,000	$	—	$	—	$	2,593,000
	Canada	1,910,000		—		—		70,000		1,980,000
	Total revenues before interest income	$	1,910,000	$	2,593,000	$	—	$	70,000	$	4,573,000
Timing of revenue recognition:
	Goods transferred at a point in time	$	1,910,000	$	—	$	—	$	70,000	$	1,980,000
	Services transferred over time	—		2,593,000		—		—		2,593,000
	Total revenues before interest income	$	1,910,000	$	2,593,000	$	—	$	70,000	$	4,573,000



		Three months ended March 31, 2019
		Oil and natural gas		Contract drilling		Land investment		Other		Total
Revenue streams:
	Oil	$	1,477,000	$	—	$	—	$	—	$	1,477,000
	Natural gas	336,000		—		—		—		336,000
	Natural gas liquids	111,000		—		—		—		111,000
	Drilling and pump	—		987,000		—		—		987,000
	Other	—		—		—		40,000		40,000
	Total revenues before interest income	$	1,924,000	$	987,000	$	—	$	40,000	$	2,951,000
Geographical regions:
	United States	$	—	$	987,000	$	—	$	1,000	$	988,000
	Canada	1,924,000		—		—		39,000		1,963,000
	Total revenues before interest income	$	1,924,000	$	987,000	$	—	$	40,000	$	2,951,000
Timing of revenue recognition:
	Goods transferred at a point in time	$	1,924,000	$	—	$	—	$	40,000	$	1,964,000
	Services transferred over time	—		987,000		—		—		987,000
	Total revenues before interest income	$	1,924,000	$	987,000	$	—	$	40,000	$	2,951,000



		Six months ended March 31, 2020
		Oil and natural gas		Contract drilling		Land investment		Other		Total
Revenue streams:
	Oil	$	3,203,000	$	—	$	—	$	—	$	3,203,000
	Natural gas	629,000		—		—		—		629,000
	Natural gas liquids	219,000		—		—		—		219,000
	Drilling and pump	—		5,239,000		—		—		5,239,000
	Other	—		—		—		126,000		126,000
	Total revenues before interest income	$	4,051,000	$	5,239,000	$	—	$	126,000	$	9,416,000
Geographical regions:
	United States	$	—	$	5,239,000	$	—	$	7,000	$	5,246,000
	Canada	4,051,000		—		—		119,000		4,170,000
	Total revenues before interest income	$	4,051,000	$	5,239,000	$	—	$	126,000	$	9,416,000
Timing of revenue recognition:
	Goods transferred at a point in time	$	4,051,000	$	—	$	—	$	126,000	$	4,177,000
	Services transferred over time	—		5,239,000		—		—		5,239,000
	Total revenues before interest income	$	4,051,000	$	5,239,000	$	—	$	126,000	$	9,416,000



		Six months ended March 31, 2019
		Oil and natural gas		Contract drilling		Land investment		Other		Total
Revenue streams:
	Oil	$	2,373,000	$	—	$	—	$	—	$	2,373,000
	Natural gas	498,000		—		—		—		498,000
	Natural gas liquids	285,000		—		—		—		285,000
	Drilling and pump	—		2,150,000		—		—		2,150,000
	Contingent residual payments	—		—		165,000		—		165,000
	Other	—		—		—		54,000		54,000
	Total revenues before interest income	$	3,156,000	$	2,150,000	$	165,000	$	54,000	$	5,525,000
Geographical regions:
	United States	$	—	$	2,150,000	$	165,000	$	1,000	$	2,316,000
	Canada	3,156,000		—		—		53,000		3,209,000
	Total revenues before interest income	$	3,156,000	$	2,150,000	$	165,000	$	54,000	$	5,525,000
Timing of revenue recognition:
	Goods transferred at a point in time	$	3,156,000	$	—	$	165,000	$	54,000	$	3,375,000
	Services transferred over time	—		2,150,000		—		—		2,150,000
	Total revenues before interest income	$	3,156,000	$	2,150,000	$	165,000	$	54,000	$	5,525,000