| In millions, except per share items | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues [+] | 236.4 | 188.6 | 127.8 | 197.4 | 380.6 | 259.2 | 149.8 | 168.3 |
| Oil & gas sales | | | | 194.6 | 378.4 | 258.1 | 149.0 | 167.3 |
| Other | -0.5 | 2.2 | 3.0 | 2.8 | 2.2 | 1.1 | 0.8 | 1.0 |
| Revenue growth | 25.3% | 47.5% | -35.2% | -48.1% | 46.9% | 73.0% | -11.0% | |
| Cost of goods sold [+] | 48.3 | 36.6 | 32.6 | 41.0 | 37.8 | 25.1 | 23.1 | 21.5 |
| Lease costs | 44.9 | | | | | | | |
| Gross profit | 188.1 | 151.9 | 95.2 | 156.4 | 342.8 | 234.0 | 126.7 | 146.7 |
| Gross margin | 79.6% | 80.6% | 74.5% | 79.2% | 90.1% | 90.3% | 84.6% | 87.2% |
| Selling, general and administrative [+] | 31.2 | 29.9 | 29.6 | 33.4 | 25.8 | 31.9 | 80.7 | 68.9 |
| General and administrative | 31.2 | 29.9 | 29.6 | 33.4 | 25.8 | 31.9 | | |
| Other operating expenses [+] | 21.6 | 22.0 | 15.9 | 24.0 | 26.8 | 32.3 | -39.5 | -13.7 |
| Exploration expenses | 8.2 | 14.1 | 6.7 | 6.6 | 3.5 | 16.1 | 0.4 | 0.8 |
| EBITDA [+] | 135.3 | 100.1 | 49.7 | 99.0 | 290.3 | 169.9 | 85.5 | 91.6 |
| EBITDA growth | 35.2% | 101.5% | -49.8% | -65.9% | 70.9% | 98.6% | -6.6% | |
| EBITDA margin | 57.2% | 53.1% | 38.8% | 50.2% | 76.3% | 65.6% | 57.1% | 54.4% |
| Depreciation and amortization | 173.9 | 167.2 | 153.9 | 205.5 | 181.7 | 114.1 | 80.7 | 68.9 |
| EBIT [+] | -38.6 | -67.2 | -104.3 | -106.5 | 108.6 | 55.8 | 4.8 | 22.7 |
| EBIT growth | -42.5% | -35.6% | -2.1% | -198.0% | 94.8% | 1051.9% | -78.6% | |
| EBIT margin | -16.3% | -35.6% | -81.6% | -53.9% | 28.5% | 21.5% | 3.2% | 13.5% |
| Non-recurring items [+] | 1,331.8 | 149.6 | | | | | | |
| Asset impairment | 1,331.8 | 149.6 | | | | | 18.8 | 32.0 |
| Loss (gain) on sale of assets | | | | | | | -1.2 | -0.9 |
| Interest expense | 89.3 | 51.7 | 53.1 | 64.5 | 41.9 | 27.4 | 25.3 | 22.0 |
| Interest expense | 89.3 | 51.7 | 53.1 | 64.5 | 41.9 | 27.4 | 25.3 | 22.0 |
| Other income (expense), net [+] | 51.2 | 39.0 | 48.8 | 159.1 | 185.1 | -6.0 | 17.8 | 59.8 |
| Gain (loss) on sale of assets | | | | | | | 1.2 | -0.9 |
| Gain (loss) on debt retirement | | | 99.5 | | | | | |
| Gain (loss) on derivative instruments | -2.8 | -18.0 | -51.3 | 158.8 | 189.6 | -2.6 | 16.7 | 34.5 |
| Gain (loss) on acquisitions / transactions | | | | | | | | 26.2 |
| Other | 53.9 | 57.0 | 0.5 | 0.3 | -4.6 | -3.4 | -7.4 | 37.8 |
| Pre-tax income | -1,408.5 | -229.5 | -108.6 | -11.9 | 251.8 | 22.3 | -2.6 | 60.5 |
| Income taxes | -61.8 | -50.7 | -23.8 | -2.8 | 26.2 | -0.1 | 0.5 | 0.2 |
| Tax rate | 4.4% | 22.1% | 21.9% | 23.5% | 10.4% | | | 0.3% |
| Minority interest | -55.7 | -77.3 | -42.3 | -6.7 | 184.5 | 24.6 | | |
| Net income | -1,298.8 | -109.4 | -45.2 | -2.4 | 41.1 | -2.2 | -3.1 | 60.3 |
| Net margin | -549.5% | -58.0% | -35.4% | -1.2% | 10.8% | -0.8% | -2.1% | 35.8% |
| |
| Basic EPS [+] | ($271.94) | ($30.22) | ($20.79) | ($0.08) | $3.28 | ($0.17) | | |
| Growth | 799.9% | 45.3% | 25363.8% | -102.5% | -1977.9% | | | |
| Diluted EPS [+] | ($271.94) | ($30.22) | ($20.79) | ($0.08) | $3.28 | ($0.17) | | |
| Growth | 799.9% | 45.3% | 25363.8% | -102.5% | -1976.5% | | | |
| |
| Shares outstanding (basic) [+] | 4.8 | 3.6 | 2.2 | 29.2 | 12.5 | 12.5 | | |
| Growth | 31.9% | 66.5% | -92.5% | 132.8% | 0.2% | | | |
| Shares outstanding (diluted) [+] | 4.8 | 3.6 | 2.2 | 29.2 | 12.5 | 12.5 | | |
| Growth | 31.9% | 66.5% | -92.5% | 132.6% | 0.3% | | | |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |