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Supplemental Disclosure of Cash Flow Information
 12 Months Ended
Jun. 30, 2016
Supplemental Cash Flow Elements [Abstract]  
Supplemental Disclosure of Cash Flow Information
Supplemental Disclosure of Cash Flow Information
Our supplemental disclosures of cash flow information for the years ended June 30, 2016, 2015, and 2014 are as follows:
 
June 30,
 
2016
 
2015
 
2014
Income taxes paid
$
540,000

 
$
220,000

 
$
755,941

Income tax refunds
1,556,999

 
331,733

 
—

Non-cash transactions:
 
 
 
 
 
Increase (decrease) in accrued purchases of property and equipment
(2,250,048
)
 
5,422,566

 
(183,766
)
Deferred loan costs charged to oil and gas property costs
107,196

 
—

 
—

Oil and natural gas property costs attributable to the recognition of asset retirement obligations
140,151

 
576,039

 
66,976

Mengel working interest acquired in Delhi Field litigation settlement
596,500

 
—

 
—

Royalty rights acquired through non-monetary exchange of patent and trademark assets
108,512

 
—

 
—

Previously acquired Company shares swapped by holders to pay stock option exercise price
$
76,500

 
$
—

 
$
618,606

Accrued purchases of treasury stock
(170,283
)
 
170,283

 
—