| Filed On | Filing |
|---|---|
| 07 Apr 2000 | NOTICE OF ANNUAL MEETING OF STOCKHOLDERS |
| 07 Apr 1999 | DEF 14A COLUMBIA ENERGY GROUP NOTICE & PROXY |
| 31 Mar 1998 | SCHEDULE 14A FOR COLUMBIA ENERGY GROUP |
| 15 Apr 1997 | DEFINITIVE PROXY, THE COLUMBIA GAS SYSTEM, INC. |
| 12 Mar 1996 | DEFINITIVE PROXY STATEMENT - COLUMBIA GAS SYSTEM |
| 14 Mar 1995 | DEFINITIVE PROXY MATERIALS, COLUMBIA GAS SYSTEM |
| 11 Mar 1994 | PROXY STATEMENT DATED MARCH 14, 1994 |
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