Annual report pursuant to Section 13 and 15(d)

STATEMENTS OF CASH FLOWS

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STATEMENTS OF CASH FLOWS - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Cash Flows From Operating Activities      
Net income (loss) $ 8,999,760 $ 1,753,869 $ (37,637,687)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:      
Depreciation, depletion and amortization 39,024,886 20,517,780 11,483,314
Ceiling test impairment 14,172,309 0 56,513,016
Accretion expense 606,459 567,968 487,182
Share-based compensation 3,870,934 3,685,079 2,267,053
Deferred income tax expense (benefit) 2,537,837 3,862,827 (19,987,585)
Excess tax benefit related to share-based compensation 907,884 (49,896) 0
Adjustment to deferred tax asset for change in effective tax rate 0 6,603,240  
Change in fair value of derivative instruments (3,968,286) 3,968,286 0
Changes in assets and liabilities:      
Accounts receivable 666,283 (9,980,206) 229,324
Prepaid expenses and retainers (318,190) 268,080 334,162
Accounts payable 4,435,269 12,375,772 (2,233,776)
Settlement of asset retirement obligation (577,824) (766,595) (240,606)
Net Cash Provided by Operating Activities 70,357,321 42,806,204 11,214,397
Cash Flows From Investing Activities      
Payments to purchase oil and natural gas properties (4,656,484) (28,682,298) (10,193,927)
Payments to develop oil and natural gas properties (198,870,366) (124,680,469) (26,554,171)
Proceeds from disposal of fixed assets subject to depreciation 105,536 0 0
Purchase of fixed assets subject to depreciation 0 (335,507) (9,320)
Purchase of inventory for development 0 (4,214,686) (1,582,427)
Net Cash Used in Investing Activities (203,421,314) (157,912,960) (38,339,845)
Cash Flows From Financing Activities      
Proceeds from revolving line of credit 39,500,000 0 7,000,000
Proceeds from issuance of common stock 81,821,138 59,026,956 139,567,979
Proceeds from option exercise 100,000 0 112,500
Principal payments on revolving line of credit 0 0 (52,900,000)
Net Cash Provided by Financing Activities 121,421,138 59,026,956 93,780,479
Net Increase (Decrease) in Cash (11,642,855) (56,079,800) 66,655,031
Cash at Beginning of Period 15,006,581 71,086,381 4,431,350
Cash at End of Period 3,363,726 15,006,581 71,086,381
Supplemental Cash Flow Information      
Cash paid for interest 323,916 0 649,010
Noncash Investing and Financing Activities      
Asset retirement obligation incurred during development 1,311,956 1,297,289 308,509
Asset retirement obligation acquired 2,571,549 0 0
Asset retirement obligation revision of estimate [1] 87,960    
Oil and natural gas assets and properties acquired through stock issuance 11,204,258 0 0
Capitalized expenditures attributable to drilling projects financed through current liabilities 26,000,000 23,000,000 0
Use of inventory in property development $ 0 $ 5,797,113 $ 0
[1] Several factors are considered in the annual review process, including inflation rates, current estimates for removal cost, and estimated remaining useful life of the assets. The 2018 revision of estimates reflect decreases in the estimated remaining useful life of certain assets.