| In millions, except per share items | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 | Dec-31-06 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: |
| Natural gas revenues | 17.5 | 15.4 | | 12.0 | | | | |
| Natural gas revenues (Note 6) | | | | | 9.9 | | | |
| Other | 131.5 | 117.8 | | 75.8 | 62.8 | | | |
| Total revenues | 149.0 | 133.3 | 104.8 | 87.8 | 72.7 | 69.1 | 62.5 | 58.2 |
| Revenue growth [+] | 11.8% | 27.2% | 19.3% | 20.8% | 5.2% | 10.6% | 7.4% | 39.5% |
| Natural gas revenues | 13.3% | | | | | | | |
| Cost of goods sold | 23.6 | 23.4 | 0.0 | 14.5 | 12.2 | 34.1 | 25.4 | 0.0 |
| Gross profit | 125.5 | 109.9 | 104.8 | 73.3 | 60.5 | 35.1 | 37.1 | 58.2 |
| Gross margin | 84.2% | 82.5% | 100.0% | 83.4% | 83.2% | 50.7% | 59.3% | 100.0% |
| Selling, general and administrative [+] | 14.5 | 13.8 | 20.7 | 9.5 | 8.8 | 7.3 | 5.6 | 4.5 |
| General and administrative | 14.5 | 13.8 | | 9.5 | 8.8 | | | |
| Equity in earnings | 19.8 | 26.4 | 20.5 | 16.2 | 14.1 | | | |
| Other operating expenses [+] | 49.4 | 43.1 | -19.4 | 28.0 | 19.3 | -3.9 | -9.5 | |
| Exploration expenses | 6.9 | 11.2 | | 6.1 | 1.0 | | | |
| EBITDA [+] | 81.4 | 79.4 | 124.0 | 52.0 | 46.5 | 44.9 | 50.8 | 46.8 |
| EBITDA growth | 2.6% | -36.0% | 138.5% | 11.7% | 3.7% | -11.6% | 8.4% | 36.3% |
| EBITDA margin | 54.6% | 59.5% | 118.3% | 59.2% | 64.0% | 64.9% | 81.2% | 80.4% |
| Depreciation and amortization | 33.2 | 26.9 | 20.7 | 16.9 | 15.4 | 13.3 | 9.8 | 8.4 |
| EBIT [+] | 48.2 | 52.4 | 103.3 | 35.1 | 31.1 | 31.6 | 41.0 | 38.4 |
| EBIT growth | -8.1% | -49.2% | 194.3% | 12.8% | -1.6% | -22.9% | 6.8% | 33.5% |
| EBIT margin | 32.4% | 39.4% | 98.5% | 40.0% | 42.8% | 45.7% | 65.6% | 65.9% |
| Interest income, net [+] | 20.7 | 26.1 | | 16.6 | 14.6 | | | 1.8 |
| Interest expense | 0.3 | 0.4 | 0.1 | | | | | |
| Interest income | 20.7 | 26.1 | | 16.6 | 14.6 | | | 1.8 |
| Other income (expense), net [+] | -19.5 | -26.0 | -103.2 | -16.2 | -14.1 | -1.1 | -1.5 | -0.1 |
| Gain (loss) on foreign currency transactions | 3.3 | 0.3 | | -0.1 | 0.6 | | | |
| Pre-tax income | 49.1 | 52.2 | 0.0 | 35.5 | 31.5 | 30.5 | 39.5 | 40.1 |
| Income taxes | 30.6 | 13.1 | 10.1 | 9.7 | 8.0 | 6.7 | 8.1 | 0.0 |
| Tax rate | 62.3% | 25.0% | | 27.3% | 25.4% | 21.9% | 20.6% | 0.0% |
| Minority interest | 0.0 | 0.1 | | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Net income | 18.5 | 39.1 | 31.8 | 25.8 | 23.5 | 23.8 | 31.4 | 40.1 |
| Net margin | 12.4% | 29.3% | 30.3% | 29.4% | 32.3% | 34.5% | 50.2% | 68.8% |
| |
| Basic EPS [+] | $0.63 | $1.33 | $1.08 | $0.88 | $0.80 | $0.81 | $1.06 | $1.36 |
| Growth | -52.6% | 23.0% | 22.9% | 10.0% | -1.2% | -23.6% | -22.1% | 34.7% |
| Diluted EPS [+] | $0.63 | $1.33 | $1.08 | $0.88 | $0.80 | $0.81 | $1.06 | $1.36 |
| Growth | -52.6% | 23.0% | 22.9% | 10.0% | -1.2% | -23.6% | -22.1% | 34.7% |
| |
| Dividends per share [+] | | $0.02 | $0.08 | $0.08 | $0.15 | | | |
| Growth | -100.0% | -75.0% | 0.0% | -45.9% | | | | |
| |
| Shares outstanding (basic) [+] | 29.4 | 29.4 | 29.4 | 29.3 | 29.4 | 29.4 | 29.6 | 29.5 |
| Growth | 0.0% | -0.1% | 0.3% | -0.2% | -0.1% | -0.7% | 0.5% | -0.3% |
| Shares outstanding (diluted) [+] | 29.4 | 29.4 | 29.4 | 29.3 | 29.4 | 29.4 | 29.6 | 29.5 |
| Growth | 0.0% | -0.1% | 0.3% | -0.2% | -0.1% | -0.7% | 0.5% | -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. |