2004 Cases AU-MORE THAN TWO UTILITIES (9 cases) CC-COOLING COMPANY (1 cases) CT-COMPETITIVE TELEPHONE (41 cases) EL-ELECTRIC (167 cases) GA-GAS (120 cases) GE-GAS & ELECTRIC (7 cases) HT-HEATING (4 cases) PL-PIPE LINE (5 cases) RC-RADIO COMMON CARRIERS (6 cases) RR-RAILROAD (64 cases) ST-SEWAGE TREATMENT (2 cases) TP-TELEPHONE (1482 cases) TR-TRANSPORTATION (72 cases) WS-WATER & SEWER (1 cases) WT-WATER TRANSPORTATION (3 cases) WW-WATER WORKS (13 cases) XX-TEST INDUSTRY CODE (3 cases)