============= Page 1 of 1 ============= ENRON CORP. Table 3a - Business Highlights (Unaudited) Quarter Ended June 30, 2001 2000 Six Months Ended June 30, 2001 2000 Transportation Services (In Millions) Net Revenues $ 121 $ 148 $ 364 $ 349 Operating Expenses 54 76 161 141 Depreciation and Amortization 17 17 34 33 Equity in Earnings 16 10 30 17 Other, net 11 12 11 13 IBIT $ 77 $ 77 $ 210 $ 205 Total Volumes Transported (BBtu/d) (a) Northern Natural Gas 2,908 3,237 3,327 3,691 Transwestern Pipeline 1,973 1,606 1,859 1,584 Florida Gas Transmission 1,574 1,591 1,404 1,571 Northern Border Pipeline 2,303 2,429 2,396 2,447 Portland General (In Millions) Revenues Purchased Power and Fuel Operating Expenses Depreciation and Amortization Other Income, net IBIT Retail Customers (end of period, thousands) Electricity Sales (Thousand MWh) Residential Commercial Industrial Total Retail Wholesale Total Sales $ 831 $ 431 $ 1,598 $ 828 624 252 1,206 454 94 76 161 154 55 46 106 92 7 5 - 39 $ 65 $ 62 $ 125 $ 167 728 726 728 726 1,548 1,480 3,719 3,841 1,785 1,769 3,605 3,641 1,139 1,235 2,339 2,404 4,472 4,484 9,663 9,886 3,035 4,909 5,774 9,190 7,507 9,393 15,437 19,076 (a) Reflects 100% of each entity's throughput volumes. EXH010-01277