Rank 2005 | 2004 | | Net sales $ millions | Estimated transaction costs $ millions | Income before extra items $ millions | Information Value-Added* $ millions | Information Productivity* % | 1 | 2 | Chesapeake Energy Corp., Crude Petroleum, Natural Gas | $2,709 | $37 | $515 | $287 | 775.7% | 2 | – | Kcs Energy, Crude Petroleum, Natural Gas | 217 | 9 | 100 | 65 | 704.7 | 3 | – | Cimarex Energy,Crude Petroleum, Natural Gas | 675 | 23 | 154 | 150 | 666.9 | 4 | 6 | Apache Corp., Crude Petroleum, Natural Gas | 5,308 | 173 | 1,670 | 1,065 | 615.2 | 5 | – | Owens Corning, Miscellaneous Minerals | 5,675 | 577 | 204 | 2,856 | 494.9 | 6 | 5 | Eagle Materials, Concrete, Gypsum, Plaster | 500 | 7 | 67 | 32 | 469.3 | 7 | – | Entertainment Properties Trust, Real Estate Investment Trust | 126 | 6 | 54 | 28 | 461.1 | 8 | 3 | Valero Lp, Pipelines, Excluding Natural Gas | 221 | 11 | 78 | 51 | 451.7 | 9 | – | Ampex Corp., Patent Owners and Lessors | 102 | 18 | 49 | 79 | 444.6 | 10 | 117 | Overseas Shipholding Group, Sea Transportation & Freight | 811 | 52 | 401 | 219 | 421.3 | 11 | – | Terra Nitrogen, Agricultural Chemicals | 420 | 11 | 46 | 44 | 408.5 | 12 | 7 | Stone Energy Corp., Crude Petroleum, Natural Gas | 544 | 14 | 135 | 58 | 407.7 | 13 | 21 | Petroleum Development Corp., Crude Petroleum, Natural Gas | 289 | 5 | 34 | 17 | 380.7 | 14 | 83 | Chubb Corp., Casualty Insurance | 13,153 | 179 | 1,548 | 650 | 363.0 | 15 | 15 | Kinder Morgan Energy, Natural Gas Transmission | 7,933 | 171 | 832 | 609 | 357.0 | 16 | 55 | Buckeye Partners, Pipelines | 324 | 17 | 83 | 60 | 352.4 | 17 | 17 | Devon Energy Corp., Crude Petroleum, Natural Gas | 9,189 | 277 | 2,186 | 969 | 349.8 | 18 | 10 | Encore Acquisition, Crude Petroleum, Natural Gas | 299 | 17 | 82 | 55 | 327.6 | 19 | 9 | Houston Exploration, Crude Petroleum, Natural Gas | 650 | 33 | 163 | 100 | 304.8 | 20 | 30 | Berry Petroleum, Crude Petroleum, Natural Gas | 275 | 21 | 69 | 58 | 275.5 |
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