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Stock-Based Incentive Plan | 3 Months Ended
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Sep. 30, 2013
Stock-Based Incentive Plan |
Stock-Based Incentive Plan | Note 6—Stock-Based Incentive Plan We may grant option awards to purchase common stock (the “Stock Options”), restricted common stock awards (“Restricted Stock”), and unrestricted fully vested common stock, to employees, directors, and consultants of the Company and its subsidiaries under the Natural Gas Systems Inc. 2003 Stock Plan (the “2003 Stock Plan”) and the Evolution Petroleum Corporation Amended and Restated 2004 Stock Plan (the “2004 Stock Plan” or together, the “EPM Stock Plans”). Option awards for the purchase of 600,000 shares of common stock were issued under the 2003 Stock Plan. The 2004 Stock Plan authorized the issuance of 6,500,000 shares of common stock. No shares are available for grant under the 2003 Stock Plan and 800,914 shares remain available for grant under the 2004 Stock Plan as of September 30, 2013. We have also granted common stock warrants, as authorized by the Board of Directors, to employees in lieu of cash bonuses or as incentive awards to reward previous service or provide incentives to individuals to acquire a proprietary interest in the Company’s success and to remain in the service of the Company (the “Incentive Warrants”). These Incentive Warrants have similar characteristics of the Stock Options. A total of 1,037,500 Incentive Warrants have been issued, with Board of Directors approval, outside of the EPM Stock Plans. We have not issued Incentive Warrants since the listing of our shares on the NYSE MKT (formerly, the American Stock Exchange) in July 2006. Stock Options and Incentive Warrants Stock-based compensation expense related to Stock Options and Incentive Warrants for the three months ended September 30, 2013 and the corresponding prior year period was $0 and $26,274, respectively. No Stock Options or Incentive Warrants have been granted since August 2008. The following summary presents information regarding outstanding Stock Options and Incentive Warrants as of September 30, 2013, and the changes during the fiscal year:
|  | Number of Stock Options and Incentive Warrants |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value (1) |  | Weighted Average Remaining Contractual Term (in years) |
Stock Options and Incentive Warrants outstanding at July 1, 2013 |  | 4,822,820 |  | $ | 1.99 |  |  |  |  |
Granted |  | — |  | — |  |  |  |  |
Exercised |  | — |  | — |  |  |  |  |
Cancelled or forfeited |  | — |  | — |  |  |  |  |
Expired |  | — |  | — |  |  |  |  |
Stock Options and Incentive Warrants outstanding at September 30, 2013 |  | 4,822,820 |  | $ | 1.99 |  | $ | 44,708,877 |  | 2.4 |
Vested or expected to vest at September 30, 2013 |  | 4,822,820 |  | $ | 1.99 |  | $ | 44,708,877 |  | 2.4 |
Exercisable at September 30, 2013 |  | 4,822,820 |  | $ | 1.99 |  | $ | 44,708,877 |  | 2.4 |
(1) Based upon the difference between the market price of our common stock on the last trading date of the period ($11.26 as of September 30, 2013) and the Stock Option or Incentive Warrant exercise price of in-the-money Stock Options and Incentive Warrants. During the three months ended September 30, 2012 there were 18,922 Stock Options and Incentive Warrants that vested with a total grant date fair value of $46,359 and no unvested Stock Options and Incentive Warrants remained. As of August 31, 2012 all compensation costs attributable to Stock Options and Incentive Warrants had been recognized. Restricted Stock Stock-based compensation expense related to Restricted Stock grants for the three months ended September 30, 2013 and 2012 was $373,438 and $327,516, respectively. The following table sets forth the Restricted Stock transactions for the three months ended September 30, 2013:
|  | Number of Restricted Shares |  | Weighted Average Grant-Date Fair Value |
Unvested at July 1, 2013 |  | 386,599 |  | $ | 6.65 |
Granted |  | — |  | — |
Vested |  | (61,345 | ) | 5.01 |
Forfeited |  | — |  | — |
Unvested at September 30, 2013 |  | 325,254 |  | $ | 6.96 |
At September 30, 2013, unrecognized stock compensation expense related to Restricted Stock grants totaled $1,905,882. Such unrecognized expense will be recognized over a weighted average period of 2.1 years.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64, 65, A240 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 93-6 -Paragraph 53 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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