| In millions, except per share items | Sep-30-10 | Jun-30-10 | Mar-31-10 | Dec-31-09 | Sep-30-09 | Jun-30-09 | Mar-31-09 | Dec-31-08 |
| | 10-Q | 10-Q/A | 10-Q | 10-K | 10-Q | 10-Q/A | 10-Q | 10-K |
| Revenues: | | | | | | | | |
| Gas and oil production | 67.5 | 69.2 | | | 66.0 | 70.0 | | |
| Well construction and completion | 60.7 | 36.7 | | | 81.5 | 53.7 | | |
| Gathering and processing | 235.7 | 251.4 | | | 179.3 | 186.1 | | |
| Administration and oversight | 3.6 | 1.9 | | | 3.1 | 2.6 | | |
| Well services | 6.0 | 5.7 | | | 5.0 | 4.8 | | |
| Gain (loss) on mark-to-market derivatives | -6.9 | 8.1 | | | 0.0 | -18.6 | | |
| Other, net | 4.5 | 3.9 | | | 4.9 | 2.0 | | |
| Total revenues | 371.1 | 383.4 | 429.0 | 442.3 | 339.8 | 310.3 | 362.1 | 515.4 |
| Total revenues growth | 9.2% | 23.6% | 18.5% | -14.2% | -55.9% | -7.1% | -25.6% | 40.7% |
| Costs and expenses: | | | | | | | | |
| Gas and oil production | 13.8 | 13.1 | | | 12.1 | 9.8 | | |
| Gathering and processing | 199.3 | 209.9 | | | 151.3 | 150.4 | | |
| General and administrative | 29.5 | 25.3 | 30.6 | | 32.0 | 21.7 | 27.6 | |
| Operating income | 25.4 | 42.3 | 42.4 | | 30.4 | 22.4 | 21.9 | -386.1 |
| Operating margin | 6.9% | 11.0% | 9.9% | | 8.9% | 7.2% | 6.0% | |
| Interest expense | -44.8 | -41.6 | -44.6 | | -47.8 | -41.9 | -34.6 | |
| Income tax provision (benefit) | 0.0 | 113.2 | -1.4 | -49.1 | -1.1 | 3.7 | 2.6 | -5.0 |
| Net income (loss) from continuing operations | -18.6 | 176.2 | -0.8 | -59.9 | -18.7 | 82.4 | -15.3 | -505.3 |
| |
| Discontinued operations: | | | | | | | | |
| Gain on sale of discontinued operations | 298.9 | | | | | 48.9 | | |
| Income | -5.3 | | | | 8.8 | 2.4 | 8.5 | |
| (Income) loss attributable to non-controlling interests | -259.0 | -0.3 | | | 9.2 | -124.3 | | |
| Net income (loss) attributable to common shareholders | 16.0 | 175.9 | -0.8 | -0.1 | -0.7 | 9.4 | -6.8 | -485.6 |
| |
| Net income (loss) attributable to common shareholders per share - basic: | | | | | | | | |
| Income (loss) from continuing operations attributable to common shareholders | 0.0 | 0.0 | | | 0.0 | 0.0 | | |
| |
| Net income (loss) attributable to common shareholders | $0.20 | $2.24 | ($2,101.00) | ($71,986.00) | ($0.02) | $0.24 | $4,643.00 | ($6,158.00) |
| |
| Net income (loss) attributable to common shareholders per share - diluted: | | | | | | | | |
| Income (loss) from continuing operations attributable to common shareholders | 0.0 | 0.0 | | | 0.0 | 0.0 | | |
| Income from discontinued operations attributable to common shareholders | 0.0 | | | | 0.0 | 0.0 | 0.0 | |
| Net income (loss) attributable to common shareholders | $0.20 | $2.16 | ($2,101.00) | ($71,986.00) | ($0.02) | $0.24 | $4,643.00 | ($6,158.00) |
| |
| Weighted average common shares outstanding: | | | | | | | | |
| Basic | 78.4 | 78.4 | 0.1 | | 39.8 | 39.4 | 39.3 | |
| Diluted | 81.2 | 81.4 | 0.1 | | 39.8 | 39.8 | 39.8 | |
| |
| Income (loss) attributable to common shareholders: | | | | | | | | |
| Net income (loss) attributable to common shareholders | 16.0 | 175.9 | -0.8 | -0.1 | -0.7 | 9.4 | -6.8 | -485.6 |