Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Apr. 30, 2016	Apr. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (11,989,758)	$ (6,344,579)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation, depletion and accretion	161,326	750,360
Amortization of intangible assets	120,452	20,293
Stock-based compensation	1,593,349	1,135,417
Impairment of oil and gas assets	6,870,613	1,246,975
Impairment of intangible assets	2,082,941	0
Loss on sale of oil and gas assets	7,519,460	0
Gain on sale of equipment	(5,519)	0
Net gain on interest in real estate rights	(10,474,713)
Deferred tax liability	2,501,209	0
Changes in operating assets and liabilities:
Accounts receivable - oil and gas	41,785	9,291
Accrued interest on notes receivable - related party	(170,653)	0
Prepaid expenses and other assets	27,804	(34,396)
Accounts payable and accrued expenses	(45,447)	(228,410)
Net Cash Used in Operating Activities	(1,767,151)	(3,445,049)
Cash Flows From Investing Activities:
Purchase of certificate of deposit - restricted	0	(125,000)
Proceeds from interest in real estate rights	18,369,000	0
Change in reclamation deposit	44,197	0
Prepaid oil and gas development costs	(844,131)	0
Capitalized expenditures on oil and gas assets	(102,864)	(8,701,100)
Cash received upon disposal of oil and gas assets	279,013	0
Issuance of notes receivable - related party	(17,848,000)	0
Proceeds from sale of equipment	60,000	0
Purchase of equipment	0	(39,757)
Payments on deposit	(25,856)	0
Net Cash Used in Investing Activities	(468,641)	(8,865,857)
Cash Flows From Financing Activities:
Proceeds from notes payable - related party	1,600,000	0
Cash payments of note payable	0	(31,500)
Cash received from non-controlling interest contribution	0	5,000,000
Net Cash Provided by Financing Activities	1,600,000	4,968,500
Change in cash and cash equivalents	(235,792)	(7,342,406)
Cash and cash equivalents, beginning of year	1,010,543	8,352,949
Cash and cash equivalents, end of year	774,751	1,010,543
Cash Paid During the year for:
Income taxes	14,482	0
Interest	0	308
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Interest in real estate rights contributed by non-controlling interest	15,544,382	0
Acquisition of oil and gas assets for accrued liabilities	0	52,514
Acquisition of intangible assets for common stock and warrants	0	2,223,686
Issuance of note payable for purchase of fixed assets	$ 0	$ 31,500