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Consolidated Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2014
Cash Flows From Operating Activities |  |  |
Net income attributable to the Company | $ 24,660,362 | $ 4,991,857 | $ 3,597,313
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, depletion and amortization | 5,211,494 | 3,664,373 | 1,272,778
Impairments included in restructuring charge | 569,228 | 0 | 0
Stock-based compensation | 1,750,209 | 943,653 | 1,352,322
Stock-based compensation related to restructuring | 59,339 | 0 | 376,365
Accretion of discount on asset retirement obligations | 49,054 | 34,866 | 41,626
Settlement of asset retirement obligations | 0 | (223,564) | (315,952)
Deferred income taxes | 575,235 | 1,422,489 | 1,344,812
Deferred rent | 0 | (17,145) | (17,145)
(Gain) loss on derivative instruments, net | (3,439,229) | 109,974 | 0
Noncash (gain) on Delhi field litigation settlement | (596,500) | 0 | 0
Write-off of deferred loan costs | 50,414 | 0 | 0
Changes in operating assets and liabilities: |  |  |
Receivables | 484,285 | (1,665,261) | 507,592
Prepaid expenses and other current assets | 24,754 | 378,049 | (480,899)
Accounts payable and accrued expenses | 822,730 | 551,452 | 663,645
Income taxes payable | 431,818 | 190,032 | (233,548)
Net cash provided by operating activities | 30,653,193 | 10,380,775 | 8,108,909
Cash flows from investing activities |  |  |
Derivative settlements received | 3,633,831 | 0 | 0
Proceeds from asset sales | 0 | 398,242 | 542,347
Development of oil and natural gas properties | (21,095,901) | (4,890,909) | (966,931)
Acquisitions of oil and natural gas properties | 0 | 0 | (59,315)
Capital expenditures for technology and other equipment | (6,883) | (313,059) | (312,890)
Maturities of certificates of deposit | 0 | 0 | 250,000
Other assets | (161,345) | (236,559) | (202,017)
Net cash used by investing activities | (17,630,298) | (5,042,285) | (748,806)
Cash flows from financing activities |  |  |
Proceeds from the exercise of stock options | 51,000 | 141,600 | 3,252,801
Acquisitions of treasury stock | (1,357,185) | (333,841) | (1,655,251)
Common stock dividends paid | (6,565,823) | (9,833,642) | (9,723,833)
Preferred stock dividends paid | (674,302) | (674,302) | (674,302)
Deferred loan costs | (168,972) | (94,075) | (63,535)
Tax benefits related to stock-based compensation | 9,650,657 | 1,633,946 | 509,096
Other | 33 | 67 | 6,850
Net cash provided (used) by financing activities | 935,408 | (9,160,247) | (8,348,174)
Net increase (decrease) in cash and cash equivalents | 13,958,303 | (3,821,757) | (988,071)
Cash and cash equivalents, beginning of year | 20,118,757 | 23,940,514 | 24,928,585
Cash and cash equivalents, end of year | $ 34,077,060 | $ 20,118,757 | $ 23,940,514

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- Definition Amount of cash inflow (outflow) from financing activities classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3095-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3098-108585 + Details
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- Definition The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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- Definition The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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