Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000072020-11-000018-index-headers.html | 2011-05-04 07:49:09 | |
| 0000072020-11-000018-index.html | 2011-05-04 07:49:09 | |
| 0000072020-11-000018.txt | 2011-05-04 07:49:09 | |
 0000072020-11-000018-xbrl.zip | 80026 | 2011-05-04 07:49:09 |
| defnref.xml | 28781 | 2011-05-04 07:49:09 |
| FilingSummary.xml | 12152 | 2011-05-04 07:49:09 |
| Financial_Report.xls | 604142 | 2011-05-04 07:49:09 |
| gas-20110331.xml | 658386 | 2011-05-04 07:49:09 |
| gas-20110331.xsd | 21086 | 2011-05-04 07:49:09 |
| gas-20110331_cal.xml | 66105 | 2011-05-04 07:49:09 |
| gas-20110331_def.xml | 19952 | 2011-05-04 07:49:09 |
| gas-20110331_lab.xml | 243155 | 2011-05-04 07:49:09 |
| gas-20110331_pre.xml | 133212 | 2011-05-04 07:49:09 |
| nicorinc1004-3yrcreditamend1.htm | 87699 | 2011-05-04 07:49:09 |
| nicorinc1005-364daycredit.htm | 1051007 | 2011-05-04 07:49:09 |
| nicorinc3101certification.htm | 13849 | 2011-05-04 07:49:09 |
| nicorinc3102certification.htm | 15440 | 2011-05-04 07:49:09 |
| nicorinc3201certification.htm | 6776 | 2011-05-04 07:49:09 |
| nicorinc3202certification.htm | 6701 | 2011-05-04 07:49:09 |
| nicorincform10q033111.htm | 1239400 | 2011-05-04 07:49:09 |
 nicorinclogo.jpg | 6254 | 2011-05-04 07:49:09 |
| R1.xml | 79277 | 2011-05-04 07:49:09 |
| R10.xml | 11337 | 2011-05-04 07:49:09 |
| R11.xml | 12159 | 2011-05-04 07:49:09 |
| R12.xml | 154239 | 2011-05-04 07:49:09 |
| R13.xml | 111519 | 2011-05-04 07:49:09 |
| R14.xml | 45204 | 2011-05-04 07:49:09 |
| R15.xml | 8451 | 2011-05-04 07:49:09 |
| R16.xml | 20653 | 2011-05-04 07:49:09 |
| R17.xml | 113631 | 2011-05-04 07:49:09 |
| R18.xml | 9328 | 2011-05-04 07:49:09 |
| R19.xml | 13354 | 2011-05-04 07:49:09 |
| R2.xml | 9484 | 2011-05-04 07:49:09 |
| R20.xml | 39180 | 2011-05-04 07:49:09 |
| R21.xml | 8541 | 2011-05-04 07:49:09 |
| R22.xml | 37956 | 2011-05-04 07:49:09 |
| R3.xml | 93751 | 2011-05-04 07:49:09 |
| R4.xml | 189594 | 2011-05-04 07:49:09 |
| R5.xml | 10012 | 2011-05-04 07:49:09 |
| R6.xml | 14776 | 2011-05-04 07:49:09 |
| R7.xml | 10743 | 2011-05-04 07:49:09 |
| R8.xml | 96168 | 2011-05-04 07:49:09 |
| R9.xml | 59769 | 2011-05-04 07:49:09 |