| | | | | | 183,320 | 220,710 | 287,900 | 332,720 | 280,820 | 288,640 |
| — | — | — | | | 590 | 800 | 2,050 | 2,350 | 1,980 | 1,980 |
| | | | | | 183,910 | 221,510 | 289,950 | 335,070 | 282,800 | 290,620 |
| | | | | | -12% | 20.4% | 30.9% | 15.6% | -15.6% | -6.7% |
Cost of Goods Sold, Total | | | | | | 53,180 | 63,430 | 77,020 | 97,660 | 86,480 | 85,820 |
| | | | | | 130,730 | 158,080 | 212,930 | 237,410 | 196,320 | 204,800 |
Selling General & Admin Expenses, Total | | | | | | 6,890 | 7,600 | 7,180 | 8,450 | 8,280 | 8,660 |
Exploration / Drilling Costs, Total | | | | | | 140 | 100 | 160 | 180 | 90 | 90 |
Depreciation & Amortization | | | | | | 22,790 | 25,310 | 29,170 | 32,640 | 34,680 | 35,110 |
| | | | | | 34,730 | 33,370 | 42,970 | 52,060 | 49,400 | 51,510 |
Other Operating Expenses, Total | | | | | | 64,550 | 66,380 | 79,480 | 93,330 | 92,450 | 95,370 |
| | | | | | 66,180 | 91,700 | 133,450 | 144,080 | 103,870 | 109,430 |
| | | | | | -780 | -3,510 | -2,650 | -2,850 | -8,850 | -9,230 |
Interest And Investment Income | | | | | | 9,880 | 9,400 | 8,380 | 11,540 | 7,620 | 7,620 |
| | | | | | 9,100 | 5,890 | 5,730 | 8,690 | -1,230 | -1,610 |
Currency Exchange Gains (Loss) | | | — | | | 30 | 130 | 270 | 350 | 320 | 320 |
Other Non Operating Income (Expenses) | | | | | | 360 | 560 | 1,010 | -470 | -700 | -840 |
| | | | | | 75,670 | 98,280 | 140,460 | 152,650 | 102,260 | 107,300 |
| — | | — | — | — | — | — | — | — | — | — |
Gain (Loss) On Sale Of Investments | | | | | | 8,460 | 7,040 | 1,770 | 320 | 1,010 | 1,010 |
Gain (Loss) On Sale Of Assets | | | | | | -230 | 420 | 110 | -90 | -200 | -200 |
| — | — | — | | — | — | — | — | — | — | — |
| | — | — | | — | — | — | -1,340 | — | — | — |
| | | | | | 83,900 | 105,740 | 141,000 | 152,880 | 103,070 | 108,110 |
| | | | | | 15,850 | 25,940 | 44,710 | 47,770 | 25,480 | 26,710 |
Earnings From Continuing Operations | | | | | | 68,050 | 79,800 | 96,290 | 105,110 | 77,590 | 81,400 |
| | | | | | 68,050 | 79,800 | 96,290 | 105,110 | 77,590 | 81,400 |
Net Income to Common Incl Extra Items | | | | | | 68,050 | 79,800 | 96,290 | 105,110 | 77,590 | 81,400 |
Net Income to Common Excl. Extra Items | | | | | | 68,050 | 79,800 | 96,290 | 105,110 | 77,590 | 81,400 |
| | | | | | 4,225.3 | 4,225.3 | 4,225.3 | 4,225.3 | 4,225.3 | 4,225.2 |
Weighted Avg. Shares Outstanding | | | | | | 4,230 | 4,230 | 4,230 | 4,230 | 4,230 | 4,230.4 |
Weighted Avg. Shares Outstanding Dil | | | | | | 4,230 | 4,230 | 4,230 | 4,230 | 4,230 | 4,230.4 |
| | | | | | 16.1 | 18.9 | 22.8 | 24.8 | 18.3 | 19.2 |
| | | | | | 16.1 | 18.9 | 22.8 | 24.8 | 18.3 | 19.2 |
| | | | | | 88,820 | 116,850 | 162,450 | 176,500 | 137,920 | 143,887.5 |
| | | | | | 18.9% | 24.5% | 31.7% | 31.2% | 24.7% | 24.7% |