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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands | Total | Common Stock Common Class A | Common Stock Common Class B | Preferred Stock | Additional Paid In Capital | Retained Earnings (Deficit) | Total Stockholders Equity | Non-controlling Interest
--- | --- | --- | --- | --- | --- | --- | --- | ---
Shares, beginning of period at Dec. 31, 2014 |  | 3,000,000 | 10,750,000 | 0 |  |  |  |
Stockholders' equity, beginning of period at Dec. 31, 2014 | $ 24,117 | $ 30 | $ 108 |  | $ 9,296 | $ (775) | $ 8,659 | $ 15,458
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Stock based compensation | 716 |  |  |  | 716 |  | 716 |
Shares, restricted stock unit vesting |  | 97,000 |  |  |  |  |  |
Restricted stock unit vesting | 354 | $ 1 |  |  | 353 |  | 354 |
Contribution from NuDevco | 129 |  |  |  | 129 |  | 129 |
Consolidated net income | 17,554 |  |  |  |  | 3,117 | 3,117 | 14,437
Distributions paid to Class B non-controlling unit holders | (7,794) |  |  |  |  |  |  | (7,794)
Dividends paid to Class A common shareholders | (2,210) |  |  |  |  | (2,210) | (2,210) |
Shares, end of period at Jun. 30, 2015 |  | 3,097,000 | 10,750,000 | 0 |  |  |  |
Stockholders' equity, end of period at Jun. 30, 2015 | $ 32,866 | $ 31 | $ 108 |  | $ 10,494 | $ 132 | $ 10,765 | $ 22,101

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