EXHIBIT 4.1 ----------- BAY STATE GAS COMPANY EMPLOYEE SAVINGS PLAN Plan and Trust Agreement As Amended and Restated Effective April 1, 1995 TABLE OF CONTENTSEmployee Savings Plan Agreement • April 20th, 1999 • Nipsco Industries Inc • Electric & other services combined • California
Contract Type FiledApril 20th, 1999 Company Industry Jurisdiction