| In millions, except per share items | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 | Dec-31-12 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: |
| Natural gas sales | | | 15.3 | 7.1 | 5.7 | 10.3 | | |
| Other | | | 7.2 | 1.1 | 6.0 | 13.7 | | |
| Total revenues [+] | 116.6 | 53.1 | 22.5 | 8.2 | 11.7 | 24.1 | 18.6 | 12.1 |
| Oil & gas sales | | | | 3.3 | 5.0 | 12.2 | | |
| Oil & gas | | | 15.3 | 7.1 | 5.7 | 10.3 | 18.7 | 11.8 |
| Other | | | 0.0 | 0.0 | 0.1 | 0.3 | 0.4 | 0.3 |
| Other income | 0.9 | 0.1 | | | | | | |
| Revenue growth [+] | 119.8% | 136.1% | 174.2% | -29.8% | -51.5% | 29.2% | 54.3% | 24.5% |
| Natural gas sales | | | 114.6% | 25.9% | -45.3% | | | |
| Cost of goods sold [+] | 6.1 | 4.5 | 2.2 | 4.8 | 4.6 | 5.1 | 4.2 | 3.9 |
| Lease costs | | | | 3.2 | 2.9 | 3.3 | 2.6 | 2.2 |
| Transportation costs | | | | | | 1.8 | | |
| Natural gas midstream costs | | | | 1.6 | 1.7 | 1.8 | 1.6 | 1.7 |
| Gross profit | 110.5 | 48.6 | 20.3 | 3.4 | 7.1 | 18.9 | 14.4 | 8.2 |
| Gross margin | 94.8% | 91.6% | 90.3% | 41.2% | 60.4% | 78.6% | 77.3% | 67.6% |
| Selling, general and administrative [+] | 21.8 | 11.0 | 8.2 | 10.0 | 8.2 | 8.3 | 6.4 | 6.1 |
| General and administrative [+] | 21.8 | 15.6 | 10.9 | 10.0 | 8.2 | 8.3 | 6.4 | 6.1 |
| General and administrative expenses | 16.3 | 13.8 | 9.5 | 8.6 | 6.7 | 6.1 | 5.2 | 4.7 |
| Operating taxes | 5.5 | 1.8 | 1.3 | 0.8 | 0.9 | 1.7 | 1.3 | 1.4 |
| Other selling, general and administrative | | -4.5 | -2.7 | | | | | |
| Equity in earnings | -0.1 | -2.5 | | | | 0.0 | -0.1 | 0.0 |
| Other operating expenses | 61.2 | 18.8 | 6.4 | -0.4 | 5.0 | -0.4 | 0.1 | 15.5 |
| EBITDA [+] | 27.4 | 16.3 | 5.8 | -6.3 | -6.1 | 11.0 | 7.8 | -13.4 |
| EBITDA growth | 68.7% | 182.6% | -191.8% | 2.5% | -155.4% | 42.0% | -157.9% | -8.3% |
| EBITDA margin | 23.5% | 30.6% | 25.6% | -76.5% | -52.3% | 45.8% | 41.7% | -111.1% |
| Depreciation and amortization | 15.8 | 8.1 | 2.5 | 2.0 | 2.6 | 3.0 | 2.9 | 3.1 |
| EBIT [+] | 11.7 | 8.1 | 3.2 | -8.2 | -8.7 | 8.1 | 4.8 | -16.5 |
| EBIT growth | 43.2% | 154.0% | -139.0% | -5.7% | -207.9% | 66.7% | -129.3% | -4.3% |
| EBIT margin | 10.0% | 15.4% | 14.3% | -100.3% | -74.7% | 33.6% | 26.0% | -137.0% |
| Non-recurring items [+] | | | | 4.3 | | | | |
| Asset impairment | | | | 4.3 | | | | |
| Interest expense | 12.8 | 5.9 | 1.2 | 0.4 | 0.2 | 0.5 | 0.6 | 0.6 |
| Interest expense | 12.8 | 5.9 | 1.2 | 0.4 | 0.2 | 0.5 | 0.6 | 0.6 |
| Other income (expense), net [+] | 0.2 | 10.6 | 4.3 | 0.1 | 0.0 | | | -0.3 |
| Gain (loss) on investments | | | | | 0.0 | | | |
| Other | | 0.0 | 0.0 | 0.0 | 0.0 | -0.5 | -0.7 | -0.3 |
| Pre-tax income | -1.0 | 12.8 | 6.3 | -12.8 | -8.9 | 7.6 | 4.3 | -17.5 |
| Income taxes | -2.1 | 4.4 | -0.1 | -0.4 | -0.6 | 0.4 | 0.0 | -1.7 |
| Tax rate | 209.6% | 34.2% | | 3.2% | 7.1% | 5.0% | | 9.9% |
| Minority interest | -2.1 | 4.4 | 0.1 | -0.4 | -0.6 | 0.3 | 0.0 | -1.7 |
| Net income | 0.8 | 7.1 | 6.3 | -12.4 | -8.3 | 6.9 | 4.3 | -15.8 |
| Net margin | 0.7% | 13.3% | 28.1% | -151.4% | -71.1% | 28.8% | 23.0% | -130.4% |
| |
| Basic EPS [+] | $0.10 | $0.94 | $1.12 | ($2.27) | ($1.56) | $0.06 | $0.04 | ($0.14) |
| Growth | -89.1% | -16.0% | -149.2% | 45.9% | -2542.3% | 67.1% | -127.1% | -31.4% |
| Diluted EPS [+] | $0.10 | $0.00 | $0.98 | ($2.27) | ($1.56) | $0.06 | $0.04 | ($0.14) |
| Growth | 10839.7% | -99.9% | -143.2% | 45.9% | -2655.1% | 66.3% | -126.1% | -31.4% |
| |
| Shares outstanding (basic) [+] | 7.8 | 7.5 | 5.7 | 5.5 | 5.3 | 109.0 | 112.5 | 112.2 |
| Growth | 3.6% | 32.9% | 3.5% | 2.5% | -95.1% | -3.1% | 0.2% | 43.6% |
| Shares outstanding (diluted) [+] | 8.1 | 7,839.0 | 6.5 | 5.5 | 5.3 | 114.0 | 117.1 | 112.2 |
| Growth | -99.9% | 121397.2% | 18.0% | 2.5% | -95.3% | -2.6% | 4.3% | 43.6% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |