| In millions, except per share items | Dec-31-15 | Dec-31-14 | Dec-16-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: |
| Sales of oil and gas | | | | | | | | 647.4 |
| Sales of electricity | | | | | | | 36.1 | 63.5 |
| Other | | | | | | | 526.0 | 37.6 |
| Total revenues [+] | 641.7 | 1,431.3 | 0.0 | 0.0 | 0.0 | 701.8 | 562.0 | 748.5 |
| Oil & gas sales | | | | | | 619.6 | 500.5 | 647.4 |
| Natural gas midstream | 5.7 | 10.9 | | | | 22.2 | 22.8 | 35.8 |
| Oil & gas | 575.0 | 1,298.4 | | | | | | |
| Other | 7.2 | 3.2 | | | | | | |
| Revenue growth [+] | -55.2% | | | | -100.0% | 24.9% | -24.9% | 36.7% |
| Sales of oil and gas | | | | | | | | 49.4% |
| Sales of electricity | | | | | | | -43.2% | 14.2% |
| Cost of goods sold [+] | 249.0 | 372.6 | 0.0 | 0.0 | 0.0 | 19.9 | 21.2 | 32.1 |
| Lease costs | 245.2 | 364.5 | | | | | | |
| Direct taxes | | | | | | | | 26.9 |
| Natural gas midstream costs | 3.8 | 8.1 | | | | | | |
| Gross profit | 392.7 | 1,058.7 | 0.0 | 0.0 | 0.0 | 681.9 | 540.8 | 716.4 |
| Gross margin | 61.2% | 74.0% | | | | 97.2% | 96.2% | 95.7% |
| Selling, general and administrative [+] | 156.6 | 200.5 | | | | 52.8 | 49.2 | 54.3 |
| Sales and marketing | 70.6 | 97.7 | | | | | | |
| General and administrative [+] | 86.0 | 102.8 | 0.0 | 0.0 | 0.0 | 52.8 | 49.2 | 54.3 |
| General and administrative expenses | 86.0 | 102.8 | | | | 52.8 | 49.2 | 54.3 |
| Operating taxes | 70.6 | 97.7 | | | | | | |
| Other selling, general and administrative | 70.6 | 97.7 | | | | | | |
| Other operating expenses | 900.6 | 434.7 | | | | 207.2 | 342.3 | 443.0 |
| EBITDA [+] | -664.5 | 423.4 | | | | 421.8 | 295.1 | 360.2 |
| EBITDA growth | -256.9% | | | | -100.0% | 42.9% | -18.1% | 56.6% |
| EBITDA margin | -103.6% | 29.6% | | | | 60.1% | 52.5% | 48.1% |
| Depreciation and amortization | 251.4 | 302.4 | | | | 182.7 | 145.8 | 141.0 |
| EBIT [+] | -915.9 | 121.1 | 0.0 | 0.0 | 0.0 | 239.2 | 149.3 | 219.1 |
| EBIT growth | -856.5% | | | | -100.0% | 60.2% | -31.9% | 65.1% |
| EBIT margin | -142.7% | 8.5% | | | | 34.1% | 26.6% | 29.3% |
| Non-recurring items [+] | -1.0 | 9.4 | | | | 38.9 | 76.0 | 8.6 |
| Asset impairment | 853.8 | 253.4 | | | | 1.5 | 4.2 | 9.9 |
| Loss (gain) on sale of assets | -1.0 | 9.4 | | | | | 0.8 | -1.3 |
| Interest expense, net [+] | 85.8 | 87.9 | | | | 66.5 | 48.1 | 23.8 |
| Interest expense | 85.8 | 87.9 | | | | 66.5 | 49.9 | 23.8 |
| Interest income | | | | | | | 1.8 | |
| Other income (expense), net [+] | -14.5 | -1.0 | | | | 2.7 | 42.7 | 3.5 |
| Acquisition-related costs | | | | | | 2.6 | | |
| Gain (loss) on debt retirement | 11.2 | | | | | 0.6 | 10.8 | |
| Write-off of deferred debt issuance costs | 11.2 | | | | | 0.6 | 10.8 | |
| Other | -3.3 | -1.0 | | | | 3.3 | | 3.5 |
| Pre-tax income | -1,015.2 | 22.7 | 0.0 | 0.0 | 0.0 | 136.5 | 67.9 | 190.2 |
| Income taxes | -0.1 | 0.1 | 0.0 | 0.0 | -142.2 | 54.0 | 20.7 | 69.6 |
| Tax rate | 0.0% | 0.3% | | | | 39.5% | 30.4% | 36.6% |
| Earnings from continuing ops | -1,015.2 | 22.6 | | | | 82.5 | 47.2 | 120.6 |
| Earnings from discontinued ops | | | | | | | 6.8 | 13.0 |
| Net income | -1,015.2 | 22.6 | 0.0 | 0.0 | 0.0 | 82.5 | 54.0 | 133.5 |
| Net margin | -158.2% | 1.6% | | | | 11.8% | 9.6% | 17.8% |
| |
| Basic EPS [+] | | | | $0.00 | $0.00 | $1.56 | $1.06 | $2.67 |
| Growth | | | | | -100.0% | 47.2% | -60.4% | -6.2% |
| Diluted EPS [+] | | | | $0.00 | $0.00 | $1.54 | $1.05 | $2.64 |
| Growth | | | | | -100.0% | 46.7% | -60.1% | -6.2% |
| |
| Dividends per share [+] | | | | | | $0.30 | $0.30 | $0.30 |
| Growth | | | | | -100.0% | 0.0% | 0.0% | |
| |
| Shares outstanding (basic) [+] | | | | 54.9 | 54.1 | 53.0 | 44.6 | 45.1 |
| Growth | | | | 1.4% | 2.2% | 18.7% | -1.1% | 1.0% |
| Shares outstanding (diluted) [+] | | | | 55.3 | 54.1 | 53.4 | 44.8 | 45.7 |
| Growth | | | | 2.1% | 1.3% | 19.1% | -1.9% | 1.0% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |