| Assets | — | — |
| Cash and cash equivalents | 5.61a | 5.64a |
| Short-term investments | 0.51a | 0.97a |
| Accounts and notes receivable (net of allowance of $7 and $3, respectively) | 6.62a | 5.46a |
| Accounts and notes receivable - related parties | 0.07a | 0.01a |
| Inventories | 1.81a | 1.4a |
| Prepaid expenses and other current assets | 1.03a | 0.85a |
| Total current assets | 15.65a | 14.33a |
| Investments and long-term receivables | 9.87a | 9.13a |
| Net properties, plants and equipment | 94.36a | 70.04a |
| Other assets | 2.91a | 2.42a |
| Total assets | 122.78a | 95.92a |
| Liabilities | — | — |
| Accounts payable | 5.99a | 5.08a |
| Accounts payable - related parties | 0.06a | 0.03a |
| Short-term debt | 1.04a | 1.07a |
| Accrued income and other taxes | 2.46a | 1.81a |
| Employee benefit obligations | 1.09a | 0.77a |
| Other accruals | 1.5a | 1.23a |
| Total current liabilities | 12.12a | 10.01a |
| Long-term debt | 23.29a | 17.86a |
| Asset retirement obligations and accrued environmental costs | 8.09a | 7.22a |
| Deferred income taxes | 11.43a | 8.81a |
| Employee benefit obligations | 1.02a | 1.01a |
| Other liabilities and deferred credits | 2.03a | 1.74a |
| Total liabilities | 57.98a | 46.65a |
| Equity | — | — |
| Common stock | — | — |
| Par value | 0.02a | 0.02a |
| Capital in excess of par | 77.53a | 61.3a |
| Treasury stock | -71.15a | -65.64a |
| Accumulated other comprehensive income (loss) | -6.47a | -5.67a |
| Retained earnings | 64.87a | 59.27a |
| Total equity | 64.8a | 49.28a |
| Total liabilities and equity | 122.78a | 95.92a |