2020 Cases AU-MORE THAN TWO UTILITIES (11 cases) CT-COMPETITIVE TELEPHONE (1 cases) EL-ELECTRIC (1171 cases) GA-GAS (178 cases) GE-GAS & ELECTRIC (23 cases) HT-HEATING (1 cases) PL-PIPE LINE (7 cases) RC-RADIO COMMON CARRIERS (1 cases) RR-RAILROAD (54 cases) ST-SEWAGE TREATMENT (3 cases) TP-TELEPHONE (187 cases) TR-TRANSPORTATION (91 cases) WS-WATER & SEWER (3 cases) WW-WATER WORKS (7 cases) XX-TEST INDUSTRY CODE (2 cases)