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NORTHERN ILLINOIS GAS CO /IL/ /NEW/·10-K

Feb 22, 8:08 AM ET

nicorgas123111form10k.htmPrimary
exhibit1201ratioofearnings.htm
consentofaccountingfirmpwc.htm
consentofaccountingfirmdt.htm
exhibit3101certification.htm
exhibit3102certification.htm
exhibit3201certification.htm
exhibit3202certification.htm
R9.htm
R8.htm
R2.htm
R6.htm
R7.htm
R3.htm
R17.htm
R1.htm
R18.htm
R4.htm
R12.htm
R11.htm
R19.htm
R15.htm
R13.htm
R14.htm
R16.htm
R5.htm
R10.htm

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NORTHERN ILLINOIS GAS CO /IL/ /NEW/ 10-K

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