1 EXHIBIT 1(a) SEMCO ENERGY, INC. $60,000,000 principal amount of 8% Senior Notes due 2016 UNDERWRITING AGREEMENT Dated: June 18, 2001 TABLE OF CONTENTSUnderwriting Agreement • June 21st, 2001 • Semco Energy Inc • Natural gas distribution • New York
Contract Type FiledJune 21st, 2001 Company Industry Jurisdiction
EXHIBIT 4(a) THIRD SUPPLEMENTAL INDENTURE Dated as of June 15, 2001Third Supplemental Indenture • June 21st, 2001 • Semco Energy Inc • Natural gas distribution • New York
Contract Type FiledJune 21st, 2001 Company Industry Jurisdiction